Solar water heaters offer relief to S.Africans

June 26, 2011 by Tabelo Timse
A photo taken in July 2010 shows Oupa Jan pouring petrol into his generator while his children wait to fire it up to watch the football World Cup. South Africa's power company Eskom has installed solar heaters on roofs in Port Elizabeth, giving residents a free and endless supply of hot water and easing pressure on the grid.

For years the only hot water in Zoleka Mali's home came out of a pot on her paraffin stove.

But earlier this year, South Africa's company Eskom installed a solar heater on her roof, giving her a free and endless supply of as part of a campaign that aims to ease pressure on the grid and make more popular.

"I don't know much about though or environmental stuff," said Mali. What she does know is the clear benefits of her water heater, what South Africans call a geyser.

"The geysers use the sun to heat up the water. My electricity is not affected and I have even stopped using my paraffin stove as it was dangerous," said the mother of two from Zwide township in the industrial city of Port Elizabeth.

Eskom offers a basic free allowance of electricity to low-income South Africans, which is enough to keep the lights on but not enough to have regular water for bathing or cleaning.

So many use paraffin stoves that are a leading cause of home fires which can be hard to contain in crowded neighbourhoods.

Mali is one of the 30,000 beneficiaries in Port Elizabeth, where the black and silver rooftop geysers have become known locally as "flies", because of the way they look from a distance, shimmering in the sun.

Steam billows from Kempton Park Power Station in Johannesburg in March 2011. South Africa's power company Eskom has installed solar heaters on roofs in Port Elizabeth, giving residents a free and endless supply of hot water and easing pressure on the grid.

Eskom's objective is to install one million solar water heaters throughout country by 2015, with tens of thousands already installed in other cities around the country.

The company is offering 110-litre for free in township homes, but wealthier families needing larger volumes also receive a subsidy to encourage them to switch to solar.

Eskom has so far spent 340 million rands ($49 million, 35 million euros) on its rebate programme.

"Eskom and government's joint objective is to save energy and to encourage the use of renewable energy, as well as to provide relief to low income households," said Eskom spokeswoman Hillary Joffe.

The has already reduced the demand for electricity by 22 megawatts, she said.

That's a tiny fraction of the power produced by a coal power plant, but about one-fifth of the electricity that would be generated by a planned solar field in the arid Northern Cape.

South Africa has dramatically expanded access to electricity since the end of white-minority rule in 1994, but nearly one in five people still has no power at home.

Expanded access has left Eskom battling an electricity shortage due to a lack of investment in new capacity and an ageing power stations that resulted national blackouts in January 2008.

Massive new coal plants are being built to cope with South Africa's energy needs, but international loans for those projects have also required the country to commit more resources to renewables.

The country already emits half of Africa's greenhouse gas emissions, mostly from coal-powered power stations.

The African Development Bank earlier this month approved a $365 million loan to help fund Eskom's wind and solar projects.

The country also keen to be perceived as more environmentally friendly in the run-up to UN climate talks in November in Durban, which will seek to create a deal to follow up on the Kyoto Protocol.

Explore further: Mafia and multinationals milk Italy's green energy boom

Related Stories

Mafia and multinationals milk Italy's green energy boom

July 26, 2015

Thousands of solar panels glint in the sun, but the prized farmland beneath lies barren. While the Italian island of Sardinia revels in a renewable energy boom, the long arm of organised crime risks sullying its clean power ...

Hydrogen bus trial shows promise

July 24, 2015

Heavy transport that emits heat and water instead of diesel exhaust is within WA's reach, a Murdoch University researcher says.

Changing the color of light

July 23, 2015

Researchers at the University of Delaware have received a $1 million grant from the W.M. Keck Foundation to explore a new idea that could improve solar cells, medical imaging and even cancer treatments. Simply put, they want ...

Where is solar power headed?

July 22, 2015

Most experts agree that to have a shot at curbing the worst impacts of climate change, we need to extricate our society from fossil fuels and ramp up our use of renewable energy.

Pulsar punches hole in stellar disk

July 22, 2015

A fast-moving pulsar appears to have punched a hole in a disk of gas around its companion star and launched a fragment of the disk outward at a speed of about 4 million miles per hour. NASA's Chandra X-ray Observatory is ...

Recommended for you

Cellphones can steal data from 'air-gapped computers'

July 28, 2015

Researchers at the Ben-Gurion University of the Negev (BGU) Cyber Security Research Center have discovered that virtually any cellphone infected with a malicious code can use GSM phone frequencies to steal critical information ...

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

Vendicar_Decarian
5 / 5 (1) Jun 27, 2011
Solar hot water heaters can be used almost everywhere in the world, although from the mid U.S. latitudes northward, only for around half of the year.

My electrical consumption for hot water production is 1.5 kilowatt hours per day, or 547 kilowatt hours per year. Presuming I live above the mid U.S. latitude, I should be able to save around 300 KWh per person year in energy and a corresponding $36 per person on my yearly electric bill.

A family of 4 living below this latitude should be able to save $300 per year.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.