|
Government declares war on power wastage
By Louise
Flanagan
Throw away your old high-energy light bulbs, get solar
water heating and prepare for the municipality to cut
off your geyser and washing machine in peak hours - the
government has declared war on power wastage.
And it has a plan.
The government is rushing through new regulations so
that emergency power rationing - a key part of its plan
- can start within months.
Two weeks after widespread load shedding and a day after
the national power grid hit critical strain and had to
shed 4 000 megawatt (MW) in a hurry, ministers Alec
Erwin and Buyelwa Sonjica announced a power conservation
programme that includes voluntary and mandatory power
savings.
"The unprecedented, unplanned power outages is a
national electricity emergency that must be addressed
with the urgent, vigorous and co-ordinated actions
commensurate with such a situation," said Erwin.
The new incentives and penalties will be part of the
Electricity Regulation Act.
"These regulations will be ready for public comments by
Wednesday," said the ministers in a 20-page document
outlining their crisis-management plan.
Quotas are being drafted to save total electricity
demand by 10 percent.
To reach this, industry must cut use by 10 percent;
residential users by 10 percent; agriculture by 5
percent; commercial business, large office buildings,
government, municipal and electricity offices by 15
percent; and hotels, resorts, shopping malls and
conference centres by 20 percent.
Hospitals, security installations, essential services
and other "special cases" will be exempt.
Possible penalties for going over quotas include
punitive tariffs and cut-offs for repeat offenders.
Those who save will get incentives and large consumers
can trade in their unused quotas.
Incandescent lights will be replaced by more efficient
compact fluorescent lights. The government wants to get
a million solar water heaters into homes, institutions
and businesses, with subsidies of 20 percent to 30
percent depending on the cost of the units, which can be
R7 000 to R20 000.
Housing laws will change so all new houses must have
solar water heating with electric geysers as a back-up,
and switches to stop geysers and stoves being on at the
same time. Insulation for ceilings, geysers and windows
will be required.
Smart meters will eventually be rolled out, allowing
Eskom and municipalities to switch off remotely all
geysers, laundry appliances, pool pumps and other
appliances during peak demand. Government concessions
will be issued to businesses to promote the sale and use
of gas, mainly to domestic users for cooking.
The lights are expected to save 800MW, the solar water
heating 650MW, the smart meters 3 265MW and the move to
gas 500MW.
The government will also spend R400-million to convert
all traffic lights and public lights to solar power with
battery back up.
Motorway lights will be shut down. Small airports will
be turned off at night. The entire hospitality industry
will have to change water heating to solar power, with
electric back-up.
The government intends carrying out energy audits of its
buildings and shutting down what's not needed after
hours.
The old diesel locomotive fleet is being hauled out of
mothballs and rehabilitated, to reduce the railways'
dependence on electricity.
The cuts are intended to reduce power use while Eskom
builds power stations. By 2015, another 17 643MW in
generating power is due to be added to the grid.
The plan includes 3 500MW expected to be added through
co-generation by industry other than Eskom.
There's also a wind farm pilot project, to produce
100MW.
A "comprehensive" plan on renewable energy - which
includes wind - is due to be handed to the cabinet
within the next five months.
This article was originally
published on page 1 of
Pretoria News
on January 26, 2008
Back to TOP
Consumers urged use power sparingly
Many
Capetonians are dreading the 14 percent electricity
price hike by Eskom, which comes into effect in July,
but there are ways to keep costs down.
Eskom has urged consumers to use power sparingly to
minimise the impact of the increase.
Eskom initially asked that the National Energy Regulator
of South Africa (Nersa) approve an 18 percent hike for
the 2008-09 financial year to cover the cost of
expanding its power generation.
A lack of capacity has seen Eskom implement random power
cuts countrywide
Eskom says the top energy savers are:
- Shower
instead of taking a bath.
- Use
economy cycles when using electrical equipment.
- Use
cold water taps.
- Use
full loads in equipment.
- Use
small appliances.
- Set
geysers at 60°C.
- Sun-dry
washing.
- Use
electric blankets instead of heaters.
- Switch
off heaters.
- Don't
overheat rooms.
And if you're still not convinced, here are some
interesting facts showing just how much you can save on
average per year:
- You can
save R44 by adjusting the geyser thermostat.
- R275
(or 57 loaves of bread) by insulating the geyser and hot
water pipes.
- R162 by
showering instead of bathing.
- R328 by
fixing just one leaking hot water tap.
- R29 by
not using the hot water tap for small amounts.
- R110 by
fitting a low-flow showerhead.
- R184 by
ceiling insulation.
- R26 by using electric blankets instead of heaters.
- R72 by
sun-drying your washing.
- R52 by
switching off lights in just one room when it's not
occupied.
- R152 by
using fluorescent lamps in places that require long
hours of light, such as the garage and kitchen.
- R470 by
regularly servicing the pool pump and cleaning filter.
This article was originally
published on page 5 of
Cape Argus
on December 27, 2007
Back to TOP
Britain to switch off energy-guzzling bulbs
London -
Britain unveiled plans on Thursday to phase out
energy-wasting traditional light bulbs by 2012 to cut
the equivalent of a coal-fired power station's carbon
dioxide emissions.
The voluntary initiative foresees removing
energy-wasting incandescent light bulbs from shops and
replacing them with low-energy compact fluorescent light
(CFL) bulbs.
It aims to save up to five million tonnes of carbon
dioxide a year by 2012, or the equivalent to the carbon
emissions of a typical 1 Giga Watt coal-fired power
station.
"Britain is leading the way in getting rid of
energy-guzzling light bulbs and helping consumers reduce
their carbon footprint," Secretary of State Hilary Benn
said.
"Choosing energy-saving light bulbs can help tackle
climate change, and also cut household bills, with each
bulb saving up to 60 pounds (85 euros, 120 dollars) over
its lifetime," he said.
A British household has 23 to 24 light bulbs on average.
"I am delighted that major companies have said they are
prepared to help deliver this ambitious timetable and
offer products which will help their own customers play
their part in combating climate change," Benn said.
But he called for wider action from retailers,
manufacturers and service providers to improve the
energy efficiency of other wasteful products like
televisions and offer greener choices to their
customers.
While still the finance minister in March, Prime
Minister Gordon Brown said he hoped that the most
energy-guzzling light bulbs would disappear before the
end of 2011.
In June, the European Commission announced that
manufacturers had decided to eliminate traditional light
bulbs from the European market by 2015.
Back to TOP
SA may
ban incandescent light bulbs
By Samantha Enslin-Payne
Plans to produce energy efficient light bulbs in
southern Africa may reduce the price and make it
feasible for the government to ban incandescent light
bulbs.
It would also make it far more cost effective for Eskom
to supply energy efficient bulbs on a mass scale, which
it has already begun to do.
According to Eskom's website, compact fluorescent lamps
(CFLs), which consume 80 percent less electricity than
conventional light bulbs, originally cost between R60
and R80 each.
In 2004 the price dropped to
between R13 and R20 due to promotions and bigger sales.
In 2006 CFLs were selling for R10 a unit. The price has
since risen to an average R19.
Incandescent light bulbs and
CFLs are imported from Indonesia and China.
In 2006 CFLs, which have a
lifespan of between three and five years, accounted for
15 percent of residential lamp sales.
In 2005 and 2006 Eskom distributed over 8-million CFLs,
with 5-million issued in the Western Cape. A further
4-million will be issued in KwaZulu-Natal and Gauteng.
In 2006 Eskom's efficient lighting project in the
Western Cape, including a door-to-door campaign, saved
229-megawatts (MW) of electricity.
The banning of incandescent light bulbs would be in line
with international trends. According to the websites of
the New Scotsman and the BBC, the EU and Australia will
ban these bulbs from 2009 and 2010, respectively.
But encouraging widespread use of long-life bulbs may
have negative consequences in the long term, as these
bulbs contain mercury.
Andrew Etzinger, Eskom's general manager of investment
strategy, said: "We are putting a [disposal] process in
place so CFLs do not end up in general waste."
He described this as "amazingly complex" because of the
many stakeholders that need to be involved, including
environmental groups, retailers and the government.
"We need to do it properly. We want a 90 percent
recovery rate," Etzinger said.
One possibility is to replace CFLs with new ones for
free or at a reduced price. This would give people an
incentive to hand in bulbs rather than throw them in the
garbage.
Banning incandescent bulbs is just one measure to cut
electricity consumption, which is far cheaper than
building new generating capacity.
For example, it will cost R78,6-billion to build Eskom's
4 500MW Medupi coal-fired power station in Limpopo,
which will come on stream from 2011 and be fully
commissioned in 2015.
In contrast, Eskom has set aside R10-billion over six
years to reduce demand by 3 000MW. The demand-side
management initiative is combined with the R150-billion
Eskom will spend on new generating capacity.
Other energy saving projects could include a mass
roll-out of solar water heaters by Eskom. But whether
such an appliance will become mandatory for new property
developments or households is unclear.
Solar water heaters are costly. The Central Energy Fund
recently ran a campaign subsidising the cost of 500
solar-heated geysers, which generated a good response.
Geysers are a primary target of any energy saving
campaign, whether it focuses on insulation or solar
heating.
Households generate a third of electricity demand, and
geysers account for 25 percent of this.
Energy efficiency regulations relating to electricity,
which the department of minerals and energy plans to
issue later this year, will most likely focus first on
appliances.
Ompi Aphane, the department's chief director for
electricity, said last week that energy efficiency
regulations would apply primarily to the domestic
sector, as higher tariffs during peak periods already
sent an effective pricing signal to the industrial
sector.
Peak periods are from 7am to 10am and 6pm to 8pm.
Draft regulations on energy efficiency would be
scrutinised by state law advisers before their release
for public comment later this year, said Aphane .
Barry Bredenkamp, the acting operations manager for the
National Energy Efficiency Agency (NEEA), said
regulations on appliances, most of which are imported,
would stipulate that labels indicate their energy
efficiency.
"A" would indicate the most efficient and "G" the least.
The most efficient appliances are usually more expensive
to buy but more cost effective to run.
The NEEA was established recently as a division of the
Central Energy Fund to advise the government on energy
efficiency policy.
Bredenkamp said a tender would be issued this week to
buy equipment to enable the SA Bureau of Standards to
test locally made appliances.
In the longer term, he said, electricity quotas might be
introduced, in terms of which households would pay much
higher tariffs if they exceeded their monthly quota.
Other measures to reduce electricity consumption include
work being done by the department of housing.
A task group is drafting energy efficiency building
standards for residential buildings.
This could include stipulating that all new homes be
north facing, have thicker walls and incorporate
insulation in ceilings.
This
article was originally published on page 4 of
Business Report
on June 05, 2007
Back to TOP
Power-saving project to benefit customers
By
Niyanta Singh
Pietermaritzburg is taking saving electricity to a whole
new level.
Together with Eskom, the municipality's Infrastructure,
Services and Facilities Committee is set to recommend to
the Executive Council that energy-saving light bulbs or
compact fluorescent lamps (CFLs) be installed free of
charge in the homes of Pietermaritzburg electricity
consumers.
Following closely on the heels of the capital city's
electricity woes and amid a nationwide threat of more
crippling power black-outs, Eskom is implementing a
project in specific areas in the country where the CFL
light bulbs will be installed. Municipal residential
customers will benefit from this programme.
An ordinary light bulb lasts about 1 000 hours compared
with the CFL bulb, which can last for more than 6 000
hours and uses 80 percent less electricity. Consumers
will thus have lower electricity bills and there will be
reduced atmospheric pollution.
A
roll-out process has been put in place to ensure the
safety of residents when light bulb installations take
place.
Identity cards have been designed and residents will be
urged to verify the identity of the installer before
allowing them into the home. If approved, installers
will visit Pietermaritzburg homes as early as this
month.
This article was originally
published on page 4 of
Tribune
on February 11, 2007
Back to TOP
Light at end
of dark tunnel
The City
of Johannesburg has revealed massive plans to alleviate
electricity blackouts as Eskom's regular load shedding
of 4 000MW a day kicked in to stabilise the national
power grid.
From next week, 200 000 geyser "ripple controls" will be
installed in homes in Roodepoort, Bryanston and Randburg.
These will enable City Power to switch off geysers
remotely from a central point.
The devices will be installed free of charge - at least
initially.
Ros Greeff, member of the mayoral committee for
infrastructure and services, said qualified electricians
would be appointed to do the installations.
The cost per household to City Power would be R1 350 - a
total of R270-million for the 200 000 installations.
This
programme would eventually be rolled out to all 700 000
geysers in the city.
The devices will enable City Power to control an extra
150MW during load shedding.
Greeff said people would not immediately be charged, but
public meetings could be held later to discuss the
possibility of people who could afford to do so paying
back the money.
Joburg already had 100 000 homes with ripple controls
and saved 150MW by cutting those off at crucial times.
If load shedding became critical, the city would install
ripple controls on air-conditioning units in business
premises.
A recent top-level meeting involved the city's
infrastructure and services department, the office of
the mayor, the departments of finance, development
planning and urban management and environmental
management, as well as Eskom, City Power, eGoli Gas,
Kelvin power station and academics from various
universities.
Their plan includes:
-
Supplying 300 000 households with energy-efficient
light bulbs over six months at a cost of
R15-million, saving up to 45MW.
-
Reinstating a decommissioned diesel and gas turbine
within six months at a cost of R40-million. This
will add 120MW to the grid - about 60 percent of the
average load-shedding requirement from Eskom.
- The
city will roll out solar power for traffic lights
and public lighting. Up to 100MW could be saved
within a year.
-
With Eskom and the Development Bank, the city will
intensify its programme to install domestic solar
water-heaters.
-
Steps to increase the output of Kelvin power station
include a gas turbine contributing 30MW by December,
and replacing parts of the station with modern
generation plants. Maximum of 500MW to be available
from Kelvin by 2013.
Meanwhile, Kelvin will accelerate its asset
refurbishment and maintenance programme to meet an
immediate capacity of 300MW, and a long-term target
of 400MW. eGoli gas will ensure the supply of gas
critical to reinstate City Power's gas turbine
project. neGoli Gas will speed up
infrastructure to household clients.
-
Eskom and City Power to provide better communication
on load shedding and robust and dependable
load-shedding schedules.
-
Co-operating with strategic institutions such as
hospitals, banks, Iand security institutions, to
ensure they have continued supply, or minimised
disruptions.
-
Energy-efficient measures in council buildings.
This article was originally
published on page 1 of
The Star
on February 01, 2008
Back to TOP
Outrage over power
cuts
Residential areas
can expect their power to be cut off during the day for
months to come as Eskom grapples with capacity problems.
Coffee shops, post offices, banks and restaurants that
have blossomed in areas previously designated for
residential purposes, like Melville, Soweto and
Craighall Park, all stand to lose.
Shopping malls, business people who work from home,
pensioners and new mothers could also be dealt a huge
blow. It is still unclear how long the residential areas
will be out of power, but Eskom said cut-offs would only
be for a few hours each day. Eskom has appealed to
businesses and consumers to conserve electricity in
order to prevent load shedding.
Wendy McAllister,
of the Craigpark Residents' Association, said she
wondered how Eskom and City Power would switch off
residential areas without affecting businesses.
"I work from home. If they cut power, my production is
ruined. There are crèches, schools, people affected with
HIV/Aids, old people staying in homes or retirement
villages. Some of those places do not have enough money
to buy generators - what are they supposed to do?" she
asked.
The owner of Spiros, a Melville restaurant, who
identified himself only as Robert, said the whole of
Eskom's planning department should be fired.
"Who do I sue for loss of income?" he asked . "I do not
want to talk about how much I will lose. I have
doctorate students who come here to use the internet.
What do they do when there is no electricity for three
hours?" he said.
Last year, the Cape Regional Chamber of Commerce and
Industry estimated that one series of blackouts that
spanned two weeks in Cape Town last May cost the economy
R8,9-billion.
The Department of Minerals and Energy has said that
power failures, caused largely by lack of infrastructure
maintenance, cost the economy between R2,6-billion and
R8-billion a year.
The department estimated the cost of the backlog on
power distribution infrastructure to be about
R5-billion.
Eskom and its Joburg distributor, City Power, met
yesterday to discuss how and when to release a joint
statement that would inform residents about power cuts.
City Power's Louis Pieterse was cryptic afterwards,
saying: "I can tell you that we took a decision to issue
a joint statement with Eskom."
This
article was originally published on page 2 of
Saturday Star
on February 03, 2007
Back to TOP
10 YEARS TO SAVE
PLANET
2
January 2007
Expert's grim warning
By Bob
Roberts, Deputy Political Editor
IN 10 years time it
will be too late to reverse the effects of global
warming, a climate change expert warned yesterday.
Scientist Jim Hansen
- one of the first to start alarm bells ringing in 1988
- said that unless cuts in pollution started happening
within the next decade we would reach the "tipping
point" where the damage could not be undone.
He added: "Half the
people in the world live within 15 miles of a coastline.
A large fraction of the major cities are on coastlines.
"Once you get the
process started and well on the way, it's impossible to
prevent it.
"That's why we need
to address the issue before it gets out of control. We
just cannot burn all the fossil fuels in the ground.
"If we do, we will
end up with a planet with no ice in the Arctic and where
warming is so large that it's going to have a large
effect in terms of sea level rises and the extinction of
species."
Dr Hansen, director
of the Nasa Goddard Institute for Space Studies in New
York, said: "If we go another 10 years, by 2015, at the
current rate of growth of CO2 emissions, the emissions
in 2015 will be 35 per cent larger than they were in
2000.
"But if we want to
get on a scenario that keeps global temperature in the
range that it has been in for the last million years, we
would need to decrease the emissions by something of the
order of 25 per cent."
Britain's chief
scientist, Sir David King, said: "We need to remember:
Action is affordable, inaction is not. Only heads of
state working together can provide the new level of
global leadership we need."
bob.roberts@mirror.co.uk
Back to TOP
'Back local
food' councils urged
Local
businesses promote local goods, Mr
Vaughan believes
|
Councils in Wales are being urged
to do more to help shoppers buy local products and cut
down on food miles in an attempt to combat global
warming.
Farmers Union of
Wales president Gareth Vaughan is using his New Year
message to highlight what he sees as the difficulties
facing smaller businesses.
He says councils
"bend over backwards" to help large supermarkets" while
small shops selling local produce suffered.
The Welsh Local
Government Association said it tried to balance the two.
Mr Vaughan said:
"I feel that councils are too ready to bend over
backwards to help large supermarkets set up shop on the
edge of their main towns with big car parks and wide
roadways to accommodate huge lorries delivering goods
from all parts of the world.
"Meanwhile, our
town centre streets are covered in double yellow lines,
bollards line pavements and parking spaces are virtually
non-existent.
"Council-employed
traffic wardens lie in wait for any motorist wishing to
briefly pop into a corner shop."
He said corner
shops were often run by "traditional, local traders" who
were doing their best to support producers and supply
the best local produce while facing rising business
rates and rents.
Mr Vaughan added:
"They sell the best meat, vegetables and dairy products
available. Most of it is fully traceable from local
suppliers and produced to the highest animal welfare
standards.
"But councils
seem more determined to help the supermarket chains set
up retail parks and stores selling cheap, but often
inferior, food flown or shipped across many thousands of
miles."
He suggested
increasing rates for supermarkets and compensating local
traders to prevent them being "forced out of business".
School meals
Steve Thomas,
chief executive of the Welsh Local Government
Association, said: "Local authorities are very keen to
support local businesses in their local communities."
He cited support
for using local produce in school meals in
Carmarthenshire and Pembrokeshire as an example of
successful measures councils in Wales had taken to back
suppliers.
However, he
added: "That said, we have got to use some of the larger
businesses. They tend to have the capacity to supply
local communities that smaller businesses don't have.
"When there are
out-of-town shopping developments, we have to look at
them as planning authorities.
"Authorities will
do all they can to support local businesses but it's got
to be remembered that part of the local communities are
the larger businesses that come into them."
"We are always
seeking a balance between the two."
Back to TOP
Disappearing world:
Global warming claims tropical island
For the first time, an
inhabited island has disappeared beneath rising seas.
Environment Editor Geoffrey Lean reports
Published: 24
December 2006
Rising seas,
caused by global warming, have for the first
time washed an inhabited island off the face of
the Earth. The obliteration of Lohachara island,
in India's part of the Sundarbans where the
Ganges and the Brahmaputra rivers empty into the
Bay of Bengal, marks the moment when one of the
most apocalyptic predictions of
environmentalists and climate scientists has
started coming true.
As the
seas continue to swell, they will swallow whole
island nations, from the Maldives to the
Marshall Islands, inundate vast areas of
countries from Bangladesh to Egypt, and submerge
parts of scores of coastal cities.
Eight
years ago, as exclusively reported in The
Independent on Sunday, the first uninhabited
islands - in the Pacific atoll nation of
Kiribati - vanished beneath the waves. The
people of low-lying islands in Vanuatu, also in
the Pacific, have been evacuated as a
precaution, but the land still juts above the
sea. The disappearance of Lohachara, once home
to 10,000 people, is unprecedented.
It has
been officially recorded in a six-year study of
the Sunderbans by researchers at Calcutta's
Jadavpur University. So remote is the island
that the researchers first learned of its
submergence, and that of an uninhabited
neighbouring island, Suparibhanga, when they saw
they had vanished from satellite pictures.
Two-thirds of nearby populated island Ghoramara
has also been permanently inundated. Dr Sugata
Hazra, director of the university's School of
Oceanographic Studies, says "it is only a matter
of some years" before it is swallowed up too. Dr
Hazra says there are now a dozen "vanishing
islands" in India's part of the delta. The
area's 400 tigers are also in danger.
Until now
the Carteret Islands off Papua New Guinea were
expected to be the first populated ones to
disappear, in about eight years' time, but
Lohachara has beaten them to the dubious
distinction.
Human
cost of global warming: Rising seas will soon
make 70,000 people homeless
Refugees
from the vanished Lohachara island and the
disappearing Ghoramara island have fled to Sagar,
but this island has already lost 7,500 acres of
land to the sea. In all, a dozen islands, home
to 70,000 people, are in danger of being
submerged by the rising seas.
Back to TOP
Global warming could bring 'killer' to Joburg
Leon
Marshall
December 24 2006 at
10:23AM
New battlefronts are
opening in the war against malaria. The main cause is
climate change, which is seeing the disease spread to
new areas. Because people in such places are less
resistant, many more die of infections.
In South Africa, fears are that changing weather
conditions could result in it eventually spreading to
areas like Pretoria.
In other parts of Africa, the shifts are already
happening. Predictions are that, as the continent
suffering most from malaria, this could in coming years
see a further rise in its death rate, put at up to 2
million people a year, and in the debilitating effect it
has on countless others.
Various factors are behind malaria's reputation as one
of Africa's biggest killers. Socio-economic
circumstances leave many communities particularly
exposed. But contributing greatly to the problem are the
characteristics of its carrier mosquito and the parasite
itself, as well as the difficulties of effectively
combating the carrier and curing the disease.
A reflection of its menace is the government's highly
regulated but nevertheless contentious resort to DDT to
fight the mosquito. Despite proving successful some
years ago in pushing back malaria, its use was stopped
because of its lingering harmful effect on the
environment.
But, like some other African countries, the authorities
saw no other way of curbing malaria's renewed onslaught.
Predictions are that global climate change will bring
warmer and wetter conditions to the eastern parts of
Africa, which in South Africa includes Gauteng.
The major malarial occurrences happen because of the
warmer and wetter spells that climate change brings to
higher altitudes.
One of the factors contributing to the malaria danger is
that it is exactly such climatic conditions that favour
Anopheles gambiae, Africa's most dangerous malaria
carrier. The wet provides it with more breeding
habitats, and the warm weather shortens its life cycle
from larvae to adult mosquito from about nine to six
days.
The result is that there could within a set period be
several more generations. Another factor is that warm
conditions happen also to be particularly suitable to
the virulent species of malaria parasite, Plasmodium
falciparum, which the mosquito carries. It causes it to
mature within six days instead of up to 12.
A third factor, Dr Andrew Githeko, a medical scientist
attached to the Kenyan Medical Research Unit, calls a
"human problem". In infested lowland areas, he says, up
to 70 percent of the population could be infected, but
most develop a degree of immunity.
Also, the public health system serving them is usually
more or less geared to cope with the disease's high
prevalence. In the cooler highlands, malaria could under
normal circumstances affect only about 10 percent of the
people.
Thus , the vast majority of the community is open to new
infection, which they happen not to have any immunity
to. When climatic conditions change and malaria
mosquitoes move into higher areas, there could be an
epidemic.
The severity of the disease depends on the number of
parasites in the blood, which the immune system may be
able to regulate. Parasites multiply in the liver and
the blood cells, and the immune system kills parasites
as well as controls their multiplication.
The reason why a higher parasite tally causes a more
serious problem is because the parasite-infected cells
clog the small blood vessels in the brain, heart,
kidneys and lungs, thus blocking oxygen feed. Even in
relatively immune people, the system can become
overloaded from many bites.
The most lethal form of malaria is when the parasites
reach the brain. They anchor themselves to the
capillaries to avoid detection and destruction by the
spleen. There they accumulate, causing oxygen supply to
the brain to be cut off.
A drug called Cotexin used to be good at cleaning out
most parasites, although it could not wipe out all. It
has been taken off the market because the parasite
became resistant to it.
The drug now recommended by the World Health
Organisation is Coartem. Though expensive, it can clean
out the system altogether.
Because of DDT's dangers, it can only be a stop-gap
until something else is found. One of the possibilities
is to change the mosquito genetically so that it becomes
parasite-resistant. Another is to find out why other
mosquitoes have a preference for animals and to see
whether Anopheles gambiae can be engineered to have the
same preference. The question is what controls this
preference.
Back to TOP
Power-Sipping Bulbs Get Backing From Wal-Mart
As a way to cut
energy use, it could not be simpler. Unscrew a light
bulb that uses a lot of electricity and replace it with
one that uses much less.
While it sounds
like a promising idea, it turns out that the
long-lasting, swirl-shaped light bulbs known as compact
fluorescent lamps are to the nation’s energy problem
what vegetables are to its obesity epidemic: a near
perfect answer, if only Americans could be persuaded to
swallow them.
But now Wal-Mart
Stores, the giant discount retailer, is determined to
push them into at least 100 million homes. And its
ambitions extend even further, spurred by a sweeping
commitment from its chief executive, H. Lee Scott Jr.,
to reduce energy use across the country, a move that
could also improve Wal-Mart’s appeal to the more
affluent consumers the chain must win over to keep
growing in the United States.
“The
environment,” Mr. Scott said, “is begging for the
Wal-Mart business model.”
It is the
environmental movement’s dream: America’s biggest
company, legendary for its salesmanship and influence
with suppliers, encouraging 200 million shoppers to save
energy.
For all its power
in retailing, though, Wal-Mart is meeting plenty of
resistance — from light-bulb makers, competitors and
consumers. To help turn the tide, it is even reaching
out to unlikely partners like Google, Home Depot and
Hollywood.
A compact
fluorescent has clear advantages over the widely used
incandescent light — it uses 75 percent less
electricity, lasts 10 times longer, produces 450 pounds
fewer greenhouse gases from power plants and saves
consumers $30 over the life of each bulb. But it is
eight times as expensive as a traditional bulb, gives
off a harsher light and has a peculiar appearance.
As a result, the
bulbs have languished on store shelves for a quarter
century; only 6 percent of households use the bulbs
today.
Which is what
makes Wal-Mart’s goal so wildly ambitious. If it
succeeds in selling 100 million compact fluorescent
bulbs a year by 2008, total sales of the bulbs in the
United States would increase by 50 percent, saving
Americans $3 billion in electricity costs and avoiding
the need to build additional power plants for the
equivalent of 450,000 new homes.
That would send
shockwaves — some intended, others not — across the
lighting industry. Because compact fluorescent bulbs
last up to eight years, giant manufacturers, like
General Electric and Osram Sylvania, would sell far
fewer lights. Because the bulbs are made in Asia, some
American manufacturing jobs could be lost. And because
the bulbs contain mercury, there is a risk of pollution
when millions of consumers throw them away.
Michael B. Petras,
vice president of lighting at G.E., concedes that “the
economics are better with incandescent bulbs.”
All that has only
spurred Wal-Mart to redouble its efforts — and, in
typical fashion, it is asking those who may be hurt by
the change to help achieve it.
During an
extraordinary meeting in Las Vegas in early October,
competing bulb makers, academics, environmentalists and
government officials met to ponder, at times
uncomfortably, how Wal-Mart could sell more of the
fluorescent lights.
The proposals
discussed at what Wal-Mart dubbed the “light bulb
summit” ranged from the practical (advertise the bulbs
on the back of a Coke 12-pack) to the quixotic (create a
tax on incandescent bulbs to make them more expensive).
Selling 100
million bulbs “is not a slam dunk by any stretch of the
imagination,” Stephen Goldmacher, an executive at Royal
Philips, the Dutch company that is one of the world’s
largest light-bulb makers, told the group. “If this were
easy, it would have happened already.”
The attendees did
not need to look far for evidence. Wal-Mart had asked
the owners of the Mirage Hotel and Casino, where the
conference was held, to commit to using the energy
saving bulbs in its guest rooms in time for the meeting.
The hotel politely declined.
It is not alone.
Compact fluorescent bulbs, introduced in the United
States with much fanfare in 1979 by Philips just as the
nation’s second energy crisis of the decade was getting
under way, have never captured the public imagination.
The new bulbs —
lighted by sparking an efficient chemical reaction,
rather than heating a metal filament — were ungainly,
took several seconds to light up and often did not fit
into traditional light fixtures.
Since then,
refinements have made them far more convenient to use,
reducing their size and price as well. But Wal-Mart sold
only 40 million in 2005, compared with about 350 million
incandescent bulbs, according to people briefed on the
figures.
Back to TOP
Begin to cut pollution in your sphere
Buying carbon offsets, driving less will
help
Michael Clancy
The Arizona Republic
Jan. 26, 2007 12:00 AM
It's bad news on the
global-warming front.
Even President Bush is pushing
for less energy use. Al Gore's
movie on global warming is up
for an Oscar, and an
international consortium will
say next week that it has found
not just a smoking bullet on
global warming, it is more like
a set of smoking missiles.
What can you do about it?
It is a
classic case of thinking
globally and acting locally.
Environmentalists, community
activists, businesspeople and
homeowners all are taking steps
to reduce their contributions to
the global warming problem.
A lot of them are not complex:
switching out light bulbs or
driving less.
But one option is sort of
complicated: the purchase of
carbon offsets, a way of taking
part in the spread of renewable
energy sources.
Think of it as an investment in
the future, not in the company.
For a comprehensive report on
what that's all about, check out
the Web site for the
organization Cool Air-Clean
Planet at
www.cleanair-coolplanet.org.
Then click on their December
2006 report called "A Consumer's
Guide to Retail Carbon Offset
Providers."
The first step is to figure out
how much carbon your household
is responsible for shooting into
the atmosphere. You can search
for a calculator online. A good
one can be found at
www.carboncounter.org,
a service of the Climate Trust
in Portland, Ore.
What you can do
It can be
difficult for a modern American,
especially one in the Phoenix
area, to live out a commitment
to maintain a healthy planet. We
drive too much, and we use
air-conditioning too often. What
is clear is that, according to
many environmental groups,
alternatives exist. Sometimes
they aren't even inconvenient,
and often they actually save
money. Here are 10 things the
average citizen can do right now
to reduce carbon emissions,
which contribute to global
warming.
Drive smart
A well-tuned car with
properly inflated tires burns
less gasoline, cutting pollution
and saving you money at the
pump. If you have two cars,
drive the one with better gas
mileage whenever possible.
Combine trips or take public
transit, walk or bicycle when
you can.
Write your leaders
Urge them to raise fuel
economy standards, forcing
automakers to adapt to a modern
world with all its problems.
Better fuel efficiency would
reduce the need by 20 to 25
percent, more oil than we
currently import from the
Persian Gulf and could ever
extract from the Arctic National
Wildlife Refuge combined. And by
saving gas, you save nearly
$2,000 at the pump over the life
of your car.
Support clean, renewable
energy
Renewable energy, such as
wind and solar power, can reduce
our reliance on coal-burning
power plants, the largest source
of global warming pollution in
the U.S. Call your utility and
sign up for renewable energy.
APS and SRP offer it.
Replace incandescent
lightbulbs
Especially those that burn
the longest each day. Compact
fluorescents produce the same
amount of light as normal bulbs,
but use about a quarter of the
electricity and last 10 times as
long.
Save energy at home
Start with caulking and
weather-stripping on doorways
and windows. Then adjust your
thermostat. For each degree you
lower your thermostat in the
winter, you can cut your energy
bills by 3 percent. Finally, ask
your utility company to do a
free energy audit of your home
to show you how to save even
more money.
Use less water
Install low-flow
showerheads, toilets and faucets
and you'll use half the water
without decreasing performance.
Then turn your hot water heater
down to 45-50 degrees C and see
hot-water costs go down by as
much as 50 percent.
Buy
energy-efficient electronics and
appliances
Replacing an old
refrigerator or an
air-conditioner with an
energy-efficient model will save
you money on your electricity
bill. Look for the Energy Star
label on new appliances or visit
their Web site at
www.energystar.gov
to find the most
energy-efficient products.
Plant a tree, protect a
forest
Protecting forests is a big
step. Planting shade trees
around your house will absorb
carbon dioxide, and reduce your
air-conditioning bills.
Recycle
Producing new paper, glass and
metal products from recycled
materials saves 70 to 90 percent
of the energy and pollution that
would result if the product came
from virgin materials. Recycling
a stack of newspapers only 4
feet high will save a good-sized
tree.
Mount a campaign against
global warming
Educate your community about
how it can cut global warming
pollution. Support measures at
the national, state and local
level that improve gas mileage,
accelerate the use of clean,
renewable energy sources, and
increase energy efficiency and
conservation.
Source: The Sierra Club
Back to
TOP
Net-zero homes: The future lives here
Published: Sunday, January
28, 2007
By Candace Page
Free Press Staff Writer
HINESBURG -- Outside, the
thermometer read minus 1 degree Fahrenheit on Thursday.
Inside David and Carrie Fenn's new home, the temperature
was a balmy 30 degrees warmer, although the house is
unfinished, uninsulated and lacking two doors to shut
out the wind.
The Fenns can't wait to move in.
Big, south-facing, heat-capturing windows are the least
of what they look forward to in a house designed to use
less energy, make its own electricity and draw its heat
from the earth.
"We are both very concerned about climate change and
sustainability," said David Fenn, a 73-year-old retired
computer executive. "We want to do what we can and a
very energy-efficient house is one thing we can do."
Welcome to the cutting edge of home building.
South Farm, a six-home development on the edge of
Hinesburg village, is one of the first -- if not the
first -- Vermont subdivision to aim for "net-zero"
status, meaning over the course of a year it will
generate more electricity from clean, renewable sources
than it draws from utility power lines. Succeeding also
means close to zero emissions of carbon dioxide, a
greenhouse gas.
Individual Vermonters have been building energy-miser,
rustic, off-the-grid homes since the back-to-the-land
movement of the late 1960s.
It has taken high oil prices, improved renewable energy
technology and the looming threat of global warming to
introduce "green" building to the suburbs and the market
for $400,000-plus houses.
Already the roof of the Fenns' house is plastered with
photovoltaic film to turn sunlight into electricity.
Pipes snake down a deep well beside the house, ready to
warm the house with geothermal heat. Inside, walls more
than 9 inches thick await a stuffing of insulation.
South Farm developer Chuck Reiss is testing the strength
and consistency of the wind higher on the hillside. If a
10-kilowatt wind turbine proves feasible, all six homes
should achieve energy self-sufficiency.
Their only contribution of greenhouse gases would come
from the small amount of propane burned in the homes'
cookstoves and clothes dryers.
Jo White has a strategy even for that fossil fuel.
"I love hanging my wash outside to dry," said the
70-year-old retired banker, who hopes to move to her new
South Farms home in March.
Saving money,
saving the planet
Vermont lawmakers just wrapped up three weeks of special
hearings on global climate change and ways in which the
state can reduce its emissions of fossil fuels.
They heard one message repeatedly: One of Vermont's most
obvious opportunities to reduce greenhouse gas emissions
is making the state's homes and businesses more
energy-efficient.
Commercial and residential buildings use almost 40
percent of the energy and 70 percent of the electricity
in the United States, according to the federal
government. In Vermont, it's estimated that nearly
one-third of carbon emissions can be attributed to
residential and commercial buildings.
Not to mention the hit that homeowners' wallets take,
paying the electric and heating bill -- home heating
bills in Vermont can top $1,000 a year.
"I'm 70 years old, on a fixed income. If I want to
travel, to do the things I like, then I do have to worry
about how I'm spending my money," White said.
Lawmakers are certain to consider extending the state's
energy-efficiency programs, which until now have focused
on reducing use of electricity. That program could be
expanded to help middle-income homeowners improve
insulation and stop air leaks in their homes to reduce
the amount of heating fuel they burn.
Moving to 'Energy Star'
Meanwhile, the world of new residential construction
already has changed.
Vermont has enacted minimum energy standards for all new
houses.
Efficiency Vermont, the state-funded efficiency utility,
provides technical assistance and some financial
incentives for builders to beat the minimum standards by
constructing Energy Star homes.
Better insulated, equipped with the most efficient
furnaces and energy-efficient appliances and lighting,
an Energy Star home will use about 30 percent less
energy than a standard home, according to Pat Haller,
residential new construction market manager at
Efficiency Vermont.
In 2005, 25 percent of new residential units met Energy
Star standards in Vermont, Haller said.
Builders tell him qualifying for an Energy Star rating
adds about $2,000 to the cost of building a home, he
said.
"To get to net-zero, you are going to have to be 50 to
70 percent more efficient than Energy Star. That's hard
to do," he said.
Designing for net-zero
Nevertheless, a few home builders are ready to try --
not just a home here and there but whole small
subdivisions.
Reiss' South Farm appears to be the first, but builder
Tom Moore of Underhill is close behind, with an
eight-home subdivision, Locust Knoll, scheduled to break
ground this spring off U.S. 2 south of Richmond village.
Both developers are selling not just energy efficiency
but the idea of a "green community" of homes built from
sustainable materials, near an existing village and
beside an organic farm.
South Farm will have a pedestrian path to connect it to
Hinesburg village. Residents will be able to walk to the
grocery store half a mile away.
In both cases, building near-net-zero homes begins with
location. David and Carrie Fenn's home, like all those
in the development, is snugged into a south-facing slope
to capture the sun and uses the earth as insulation
against the back wall of the first floor.
"That sounds easy, but it is hard to orient houses for
southern exposure because we all like to have our front
door facing the street," Haller said.
Another key is building smaller-than-usual homes -- less
than 2,000 square feet at South Farm. The less space to
heat and light, the less energy is needed. Double walls
and extra insulation also reduce the energy demand of
the homes.
"Some builders want to build a net-zero home, but they
don't necessarily push themselves to get there. Chuck is
really pushing himself," Haller said.
Reiss's combination of solar roofs and geothermal heat,
for example, provides the South Farm homes with a
zero-carbon source of home heating.
Pipes draw water from deep in the ground through a heat
pump that extracts and concentrates the warmth to heat
the house. The heat pump uses a lot of electricity, but
much of the time that power will come from the solar
panels on the roof.
In all, Reiss estimates his homes will use about 5,500
kilowatt-hours of electricity annually to turn on the
lights, run most appliances and operate the geothermal
heat pump. (The average Green Mountain Power residential
customer uses 7,827 kilowatt-hours a year). The solar
roof will generate about 4,000 kilowatts. (When the roof
is generating more electricity than the home can use,
the extra power will flow to the local utility, Green
Mountain Power, and the home's electric meter will run
backward.)
Until and unless Reiss can install a wind turbine, the
homes will draw electricity from Green Mountain Power
when their solar roofs are not making power.
Paying a premium
Buying a near-net-zero home is not for everyone. Reiss's
homes are likely out of reach for most first-time
homebuyers.
"There's no getting around the fact that doing a green
building just plain costs more. It costs more to put up
a photovoltaic array than not to put it up," said Keith
Dewey, the Londonderry architect who is designing
Moore's Richmond development.
For this reason, Reiss's buyers (three of the six homes
are sold) are older people with homes they can sell to
finance the move to South Farm.
White and the Fenns describe themselves as
environmentalists willing to pay a premium for a
near-net-zero home. Carrie Fenn and Jo White serve
together on the Hinesburg Planning Commission, which
they would like to see make Energy Star construction a
requirement of new homes in town.
Just how close their homes will get to using little or
no electricity from the grid will be up to them in part.
"There will be some lifestyle changes for some people,"
Reiss said. "If you leave the lights on all the time or
turn on the dishwasher every five minutes, you will use
more electricity."
White said she doesn't see attention to her electric use
as a burden.
"I'm a switcher-off of lights. I don't let my car run
when I'm not in it. I've always tried to be
energy-conscious, not just because it costs more to
leave the lights on, but because I don't want to waste
energy."
Back to TOP
Efficient energy now a necessity for success
By
Samantha Enslin
Sustainable energy
interventions, such as solar power, efficient public
transport networks and building regulations, could
reduce South Africa's carbon dioxide emissions by up to
864 million tons over the next 20 years.
To achieve this goal, local governments need to be at
the forefront of promoting the efficient use of energy,
through awareness campaigns, conversion to solar water
heaters and energy efficient building regulations.
This is the view of The State of Energy in South African
Cities 2006: a review conducted between April 2005 and
September 2006, funded by Sustainable Energy Africa,
Danida, the Wallace Global Fund and the Renewable Energy
and Energy Efficiency Partnership. The report was
released yesterday.
"Huge carbon dioxide savings can be realised from
sustainable energy interventions in South African cities
(of) between 119 million and 864 million tons in the
next 20 years," says the report. "Carbon dioxide
reduction targets of between 15 and 20 percent over 20
years appear to be manageable for cities through
efficiency and renewable interventions."
Carbon dioxide emissions from the
15 cities reviewed totalled 156 million tons in 2004,
according to the report. This does not include emissions
from the manufacture of liquid fuels from coal and
natural gas, which would increase the total by two or
three times.
The average carbon dioxide emission per person in South
Africa's six big cities is 6,5 tons - higher than the
global norm but below European and North American
averages.
The per capita emission in 2004 for Saldanha Bay in the
Western Cape was as high as 49 tons; in uMhlatuze in
KwaZulu-Natal, it was about 47 tons.
But these figures do not give an entirely comprehensive
picture of carbon emissions, since these areas have much
smaller populations than, say, Johannesburg, where
emission levels average to about 6.5 tons per person.
Nevertheless uMhlatuze, which is home to some of the
country's largest industries, such as BHP Billiton's
aluminium smelters, is aware of the challenges it faces.
Tonie Heyneke, the chief executive of the city of
uMhlatuze, said yesterday: "We are looking at the
environmental impact of further industries.
"If we want to expand, existing industries will have to
cut emissions."
But cutting emissions is not just about cleaning up
dirty industry. Transport accounts for 56 percent of
urban energy consumption.
The report acknowledges that shifting residents from
private vehicles to public transport will require
substantial investment, but it notes that a city's fleet
of trucks or buses can be made more fuel efficient.
The 15 cities in the study - including Cape Town,
Johannesburg, Tshwane, Ekurhuleni and eThekwini -
account for 40 percent of national energy consumption
and 60 percent of gross domestic product.
Despite their wealth, they are also home to many who
live in poverty. The report says that 16 percent of
residents in these cities do not have access to energy
that is safe, clean, affordable and reliable.
In fact, their health is compromised by poorly heated
homes and by burning wood, coal or paraffin indoors.
These fuels are also dangerous.
The energy consumption of South African cities "tends to
be unsustainably high for a small minority and
unsustainably low for the vast majority", the report
says. It adds that reliable, sustainable energy must be
extended to all residents so they can participate in the
economy.
The risks of relying on a centralised power system have
already become evident from the recent power cuts
countrywide, and Eskom's warnings that more cuts might
follow due to its capacity constraints.
These problems are only likely to be alleviated from
about 2010, when extra capacity is added to the system.
Local authorities are beginning to play a role in energy
efficiency. The eThekwini municipality has fitted about
1 million energy efficient, compact fluorescent lamps
into its low-cost houses.
Sandile Maphumulo, the head of electricity at the
eThekwini municipality, said: "We realised some time ago
the need for energy efficiency. We are setting up a team
which will look at energy efficiency."
The municipality has also launched a project to convert
methane gas from landfills to electricity. The city of
uMhlatuze has commissioned the University of Zululand to
submit an energy sector plan by June, covering all
aspects of energy and how it is consumed.
The City of Cape Town has signed a 20-year agreement to
source wind power from a project in Darling. Brian
Jones, the manager of green energy at electricity
services in the City of Cape Town, said: "It is a small
amount of electricity, but it is a start."
One option for cities is solar power - an expensive
route compared with the cheap coal-fired electricity
South Africans are used to.
But Jones said the City of Cape Town was planning to
introduce a bylaw that all new buildings must be fitted
with solar water heaters. The cost could be between R6
000 and R20 000, depending on the heater's size. Each
heater would have an electric backup.
Mike Sutcliffe, eThekwini's city manager, said such a
move would require an assessment on whether the
appropriate technology was available and affordable. He
added that eThekwini had already introduced energy
efficiency in its municipal buildings.
The report says it will take more work to see how far
cities are going in using long-term energy management as
a foundation for economic development. "The evidence
suggests that efforts by South African cities to
diversify energy usage and energy sources [are] in their
infancy," it says.
But if cities do not play such an active role in
managing both energy supply and use, then their own
economies are unlikely to succeed, it says.
This article was originally published on
page 5 of
Business Report
on February 01, 2007
Back to TOP
It takes a new law to change a lightbulb
Los Angeles - A
California legislator wants to make his state the first
to ban incandescent light bulbs as part of California's
initiatives to reduce energy use and greenhouse gases
blamed for global warming.
The How Many Legislators Does it Take to Change a Light
Bulb Act would ban incandescent light bulbs by 2012 in
favour of energy-saving compact fluorescent bulbs, which
use about 25 percent of the energy.
"Incandescent light bulbs were developed almost 125
years ago and... have undergone no major modifications,"
assemblyman Lloyd Levine said on Tuesday.
"Meanwhile, they remain incredibly inefficient,
converting only about five percent of the energy they
receive into light."
Levine is expected to introduce the legislation this
week.
If passed, it would be another pioneering environmental
effort in California, the first to mandate cuts in
greenhouse gas emissions, targeting a 25 percent
reduction in emissions by 2020. - Reuters
Back to TOP
Restaurant boss finds another use for grease
Pleasant
Prairie, Wisconsin - A fast-food franchise owner has
found a way to turn grease into gold by using left-over
vegetable oil to heat his water boiler.
The experiment could soon become an industry standard in
the United States as rising fuel costs encourage small
businesses to search for savings, analysts said.
"My mother's from Germany, so I've seen how they recycle
in Europe, and I think we need to do more of that here,"
said Ed Rich, who has been serving up ButterBurgers and
frozen custard for five years at a Culver's fast-food
franchise about 90km north of Chicago.
"We have to find a way to become less dependent on
foreign oil, and if we all do our part, it can make a
difference."
Rich came up with the idea after he read about people
using fryer oil to fuel their cars. He hooked up with a
company on the other side of Wisconsin that has been
making boilers that burn waste motor oil for more than
15 years.
"We're at a point where we can't afford to throw away
energy," said Rebecca Faas, president of INOV8, which
designed and installed Rich's system. "There are
something like 925 000 restaurants in the US, and if we
could heat all their water with renewables, just think
what that could save."
Many restaurants pay to have their used oil hauled away
for re-use in cosmetics and animal feed. That could
change as rising oil and gas prices make the used oil
more valuable.
"With the recent energy costs skyrocketing, we've had
people offer to pay for used oil," said Barbara Behling,
spokesperson for Culver's corporate office in Prairie du
Sac, Wisconsin.
Culver's already runs several corporate cars and trucks
on biodiesel made from cooking oil. If Rich's system
works well the company will recommend it to all
franchisees, Behling said.
"If this catches on, it can gain some momentum and
become standard practice in the industry," said Matthew
Matenaer of Focus on Energy, a state-funded Wisconsin
group that promotes energy conservation.
The state of Wisconsin offers rebates to companies that
cut consumption and Focus on Energy is helping Rich
determine how much gas he saves with the system.
Meanwhile, INOV8 is working on a new boiler that will
automatically switch to natural gas if there's a problem
with the oil supply. The system costs $9 000 to $11 000
plus about $2 000 for installation and is expected to
last more than 20 years.
It is free of harmful emissions and doesn't even smell
of French fries. - Sapa-AFP
Back to TOP
A South African man and a British
friend have launched a campaign to get people around the
world to pledge to do their bit to fight global warming.
They are billing the
EarthFireIce
campaign as the first online campaign to collect pledges
from individuals.
For example, you can pledge to stop using a hair dryer,
or turn your heating down, or to walk more and use your
car less - and your contribution towards saving
greenhouse gasses will be calculated so you can monitor
your impact.
To kick off their campaign and raise awareness the two
founders are taking part in the hottest and coldest
marathons in the world. No one takes part in this race
lightly. Each year a few hundred runners come to the
Sahara desert in Algeria for perhaps the toughest
marathon in the world. Money raised by the event
benefits the Saharwi people, refugees who were forced
from their land in Western Sahara 30 years ago.
Family and friends join in
This year Ed Stumpf, who grew up in Port Elizabeth, and
Brit Sean Cornwell were there in a bid to kickstart
their
EarthFireIce
online campaign, which they have set up in their spare
time. People can log on to their website to make a
pledge to do their bit to fight global warming, and
invite family and friends to do the same.
"There's a very common perception that only governments
and businesses can make any difference in the climate
change arena and that you know, if an individual wants
to make a difference they have to make these huge
enormous sacrifices in their life like, you know, I'm
never going to fly again, I'm going to live in a hippie
commune or something. And we're trying to show the
opposite. Actually you don't have to make these huge
sacrifices to have, and yet you can still have a
significant impact," Sean said.
While Sean and Ed have put tens of thousands of rands of
their own money into the campaign they've attracted some
sponsorship and hope more companies will support them
People can donate money to environmental projects in the
third world, but the founders are keen to stress that
what they really want is not money, but action.
Ed said: "Seventy five percent of the world's CO2
emissions come from the first world, and yet the effects
are far and away the most severe in the developing
world. And a short trip, even our trip to the Sahara,
was kind of, it really pushed home that point. It's
quite obvious. What would these people do if global
climate changed?"
I million people
The
EarthFireIce
founders hope as many as one million people will join
the campaign which they believe is the first to target
individuals. With one gruelling marathon behind them, Ed
and Sean face another. Both men will be running in the
North Pole marathon in early April.
While the two founders of
EarthFireIce
are going to extremes, they're keen to stress that
others do not have to, but that small changes together
can have a big impact.
Back to TOP
Computer Recycling: What You Need To Know
By:
Daniel Johansson
Recycling is one of
the best ways in which to have a positive impact upon
the world in which we live in. Recycling is highly
beneficial for the natural environment and human beings.
The amount of the rubbish we create and dump into the
environment is rapidly increasing everyday, which is
having a horrendous effect on the environment, resulting
in global warming and the increase in temperature rise.
The reasons why we are creating more waste are due to;
increase in wealth, therefore we have more money to buy
products, resulting in more waste. Increase in
population means, there are more people creating waste.
New packaging and technological products are being
developed, much of these products contain materials that
are not biodegradable.
Recycling is incredibly important as waste has an
extremely negative blow upon the ecosystem. Harmful
chemicals and greenhouse gasses are released from
rubbish in landfill sites. Recycling helps to reduce the
pollution caused by waste. Habitat destruction and
global warming are some the affects caused by
deforestation. Recycling reduces the need for raw
materials so that the rainforests can be preserved.
The production of computer parts involves numerous
chemicals which are highly dangerous to our health and
surroundings. The Information Technology production
industry has enormous carbon imprints; however the
carbon imprints can be reduced through recycling of
computer components.
In order to produce computer parts the IT industry uses
raw dwindling resources and materials which are already
relatively scarce. It is a well known fact that major
companies only keep IT equipment for around 3 years and
then dispose of it. Most of the IT equipment is in good
condition and can be reused and deployed in the use of
charities, homes, schools etc.
Recycling can help in the deployment of old computers,
computer components and other computer related
equipment, recycling redundant and damaged computers can
be turned into component metals which can then go
towards building new computer or fixing damaged
machines.
Most of the environmental concerns which lie with
inappropriate disposal of computers are the monitor.
Each colour monitor contains on an average of 4 to 5
pounds of lead. Other chemicals found in computers are
mercury, cadmium a known carcinogen and Hexavalent
Chromium which is known to cause high blood pressure,
iron-poor blood, liver disease, and nerve and brain
damage in animals.
Organisations such as Oxfam have set up schemes where
other charities and schools in the third world can
benefit from old disposed computers. Oxfam collect old
computers in order to raise money to help those in need.
By disposing of computers in this way, you can help the
environment and decrease the population levels. Also at
the same time companies can feel good about the way they
have disposed computers, knowing that they are helping
others.
It is very important to recycle computers, due to high
number of computers being disposed of incorrectly or
just stored away, is increasing the risk of polluting
the environment with unfriendly toxins and excess waste.
Basically any part / component of a computer can be
recycled, the keyboard, mouse, printer and monitor. The
steel cases can be sold on for scrap metals, as can the
chassis of the computer, floppy drive chassis, hard
drive cases and drive platters. Heat sinks have to be
separated out during the recycling process due to their
high aluminium alloy content and these are recycled
separately and for less money per kilo nonetheless still
worth a cash value.
Just by correctly disposing products can help the
environment greatly. By doing this you are also doing
your bit to help fight against global warming, habitat
destruction and deforestation. All things which are
harmful to us and the future generations that have to
live on this planet. Due to vast amount of computer
waste, computers could become more expensive, due to
European laws may force makers to recycle old machines
and computer hardware in order to help the environment.
Computer experts have warmed when the new laws are put
into force overall computer prices may levitate to
anything between $50 to $100. This may force companies
into leasing computers to reduce their CPA, and bring
down cost in general.
Overall disposing of computers correctly by recycling
parts and components could result in a better cleaner
less toxic environment. Cleaner environment means less
global warming, habitat destruction and deforestation.
Also reducing the amount of raw materials needed in
order to produce these machines. It is therefore highly
important to dispose of the computer in the right place.
In many countries dumping of electronic equipment in
many areas is banned due to highly toxic chemicals in
some components.
Back to TOP
Solar handbags? Wind turbines? How to get green
Sylvia Westall 26
February 2007 at 07h29
London - The
idea of renewable energy at home is no longer as
distant as an offshore wind farm. More companies are
waking up to the popularity of green energy and the
Net hosts many sites showing steps people can take -
or gadgets they can buy - to use renewable
technology, from renting a solar panel to burning
calories with a pedal-powered washing machine.
Clean living
To make
the case for energy efficiency, the European
Commission provides a
carbon calculator
and suggestions on how to cut down on energy use,
including tips from celebrities.
In Australia,
the
government provides
an informative site on green suppliers, appliances and
eco-friendly lifestyle options.
Going one step
further, the websites of international charities
Greenpeace
and
Friends of the Earth
are home to definitive green guides and feature daily
tips from members of the public.
Power house
For homeowners
wanting to make a serious commitment to green power, the
Untied States Department of Energy provides useful
calculators to
add up the savings
from devices like solar heaters
If buying a
solar panel sounds daunting, customers can rent one. The
company says on its
website
that over 5 000 people have already signed up for the
scheme in the United States and the manufacturing plant
has not even been completed.
British home
improvement store B&Q launched a range of roof-top wind
turbines and solar panels in September. The devices,
which are available from around £1 500 (about R21 000),
can be
bought online.
Customers
across the globe can visit
Surface Power
and find out about total renewable energy systems in the
home.
Even people on
online auction site
eBay
are in on the act, offering solar panels and wind
turbines to bidders.
Handbags at dawn
It may not be
Prada, but the solar-panelled handbag can recharge
mobile phones and music players on the go. Designed by
Joe Hynek, the 'power
purse' comes with a
designer price tag of $300, but is an unusual accessory
for the environmentally conscious.
Backpackers
can also tap into the trend for a fraction of the price
thanks to Unison Light, a company which offers
solar panel backpacks
from around $35.
The wind-up radio is
still going strong after its invention 12 years ago. The
offers wind-up
phone chargers and radios from £30.
In the home,
ambitious environmentalists and health fans can
eliminate two chores in one with a
pedal-powered washing machine.
Green house
Energy suppliers are falling over themselves to flag
up their green credentials, but switching to a supplier
which invests in renewable technology does not always
mean customers receive green energy.
The
Environmental Protection Agency in the U.S provides
consumers with detailed information on
green power investment
and encourages companies to show non-renewable energy
the door.
In Europe,
Greenprices.com
lists green suppliers and their credentials, making
choosing a supplier a breeze. The website says that
often a simple phone call is enough to switch to
eco-friendly power.
Political power
Governments can provide backing to green consumers
who may be worried about burning a hole in their pocket
bigger than the one in the ozone layer.
State-by-state
cash incentives in the United States feature on
a database,
while in Britain the
low-carbon buildings programme
offers grants for devices like solar panels and
turbines.
On a wider
scale,
http://del.icio.us/reutersrenewables.
- Reuters
Back to TOP
Local invents
hybrid battery
Melanie Gosling 12
March 2007 at 13h40
Cape Town -
After beavering away in his Somerset West workshop
for seven years, electrician and inventor Jan Human
has come up with an invention that he believes will
revolutionise energy usage, cut climate-changing
carbon emissions and give a major boost to the use
of renewable energy.
Hybrid battery
His invention
is a hybrid battery which can charge and discharge
simultaneously, and which cuts energy use by up to
27 percent. It can be linked up to Eskom, solar or
wind power at the same time. Because there is less
resistance in his battery than in a conventional
one, you save energy using power from any of the
sources.
He has patented
his invention, and now hopes investors will
commercialise the battery.
"The principle
can be adapted for any kind of battery, small ones like
cellphones and laptops, or it can by used by industry
and even Eskom, both as back-up or to power their power
stations. The mines and power stations have rugby fields
of conventional batteries for back-up. It can also be
used for vehicles.
"If you link
it up to solar or wind energy, you can have energy 100
percent carbon-free."
"If you link it
up to solar or wind energy, you can have energy 100
percent carbon-free," Human said.
The novel aspect
of Human's battery is that he found a new "pathway" in
the battery which allows it to charge and discharge at
the same time.
"When a
conventional battery is discharging, say to power a
light, it cannot store energy at the same time. It's
impossible. My battery does that. You can use wind and
solar to charge my battery at the same time it is
discharging," Human said.
He had a bank of
18 batteries, each with a 1 000 amp-hour capacity. Apart
from his gas stove, these 18 batteries can supply power
for everything else in his house for a week, without
charging them, only using the solar energy stored in
them from his solar panels.
"When you use
electricity, you need pressure from the source, which is
called electro motor force or EMF. With my battery, I
need less EMF, so that is where the 27 percent saving
comes in," he explains.
Human says if we
are to avoid the worst of climate change, the only
solution is wind and solar power. Using his batteries, a
household could become carbon free, and totally free of
Eskom power.
"it sounds
very promising"
When asked for
comment, UCT academics dismissed Human's claims, but
Gerhard Ebersohn, an electrical engineer at the
University of Pretoria, said it was "definitely a new
concept".
"We have nothing
like that and it sounds very promising, but one needs to
see hard evidence first to see if it is a breakthrough.
The biggest problem with renewable energy is storage and
energy efficiency. He is sending me information and
we're going to look into it," Ebersohn said.
Back to TOP
|