Tag Archives | solar water heaters

How to make a solar water heater from plastic bottles

Retired mechanic Jose Alano invented a simple, cheap, energy saving rooftop solar water heater which is benefiting thousands of people. Here’s how it’s done… José Alano is a model of creativity in tackling environmental problems in Brazil. In 2002, the retired mechanic transformed a pile of plastic bottles and cartons into a solar water heater. […]

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Solar water heaters to help improve healthcare in rural South Africa

The Qunu clinic in the Eastern Cape has been supplied with two solar water heating (SWH) systems, through the Sustainable Energy Society of Southern Africa’s (Sessa’s) Sunwater for Life initiative. The installation at the Qunu clinic was funded by Absa Insurance Company, and allows the clinic to better serve the almost 1 000 people who […]

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Steps & incentives to saving energy

In the current energy landscape in South Africa everybody agrees on the need to consume and waste less energy. But how? Many tips to saving are free and involve simple behavioural changes; such as switching off lights which aren’t in use, turning off your geysers when you go away for the weekend or switching off […]

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Solar power breakthrough could reduce solar panel costs

Solar power is generated by photovoltaic cells, but two scientists are exploring different materials that could foster voltage from light’s magnetic effects. Scientists at the University of Michigan have discovered a new effect from an old property of light, which they say could lead to an “optical battery” that converts sunlight to electricity at a […]

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Eskom to Reduce Solar Water Heater Rebates at the end of April

State-owned power utility Eskom has confirmed that it would reduce the rebate level on its solar water heater (SWH) programme, which falls within energy efficiency initiatives in the Integrated Demand Management (IDM) unit. SWH supplier Selected Energy, which installs Solahart products, on Wednesday urged potential SWH customers to place orders for a system before the […]

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Solar panel that works in the dark put on fast track to ubiquity

‘Third-generation’ photovoltaics promise to bring solar power everywhere, from solar roofs to see-through solar windows. Is the age of ubiquitous solar finally upon us? I stumbled on a news item at CleanTechnica today about next-generation solar windows that reminded me to check up on the progress of one of my personal favorite gamechanging solar technologies. First, […]

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How To Survive Without Electricity

Situations Where There May Be No Electricity It’s interesting to read that electricity has only been a common household item in the last 50 or so years. Before that, people have survived for ages – so a lack of electricity for any duration of time is something that can be overcome. As human beings, we […]

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Banana Peels as Water Purifiers?

Banana peels show promise as superior water purification materials. To the surprisingly inventive uses for banana peels, which include polishing silverware, leather shoes, and the leaves of house plants , scientists have added purification of drinking water contaminated with potentially toxic metals. Their report, which concludes that minced banana peel performs better than an array […]

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South African minister denies meeting Shell over Karoo gas exploration

Science and Technology Minister Naledi Pandor on Tuesday denied ever meeting with Shell South Africa or discussing the international energy group’s proposed gas exploration in the Karoo with the company’s South African chairperson Bonang Mohale. This comes after media last week quoted Mohale as having said that its shale gas exploration activities would not harm […]

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