Already the continent’s largest producer of renewable energy, South Africa is moving to further reduce its reliance on hydrocarbons by expanding private sector investments in solar and wind projects, and introducing biofuels. Under the Renewable Energy Power Producer’s Programme launched in 2011, the contribution of independent power producers (IPPs) to generation is expected to reach […]
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While solar energy was currently cheaper than energy derived from diesel plants and generators that were often used as a substitute to conventional coal-fired power, it remained more expensive than coal-fired electricity generation. “This scenario is set to change,” said energy management consultancy firm PPA Energy South Africa executive director Graeme Chown.
The rise in the cost of energy along with the need to reduce the carbon footprint of buildings, architects around the world have started to come up with buildings that either generate energy, save energy or try to conserve freshwater by harvesting rain. With such designs, the future of architecture definitely seems green, but buildings […]
Seattle’s Bullitt Center is being heralded as the greenest, most energy-efficient commercial office building in the world. It’s not that the six-story, 50,000-square-foot building is utilizing never-before-seen technology. But it’s combining a lot of different existing technologies and methods to create a structure that’s a showpiece for green design–and a model for others to follow.
MIT engineers have created a new polymer film that can generate electricity by drawing on a ubiquitous source: water vapour. The new material changes its shape after absorbing tiny amounts of evaporated water, allowing it to repeatedly curl up and down. Harnessing this continuous motion could drive robotic limbs or generate enough electricity to power […]
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. […]
You don’t have to build dams to get hydroelectricity from water flowing through municipal pipes, says Dr. Daniel Farb, the Los Angeles immigrant who previously shook up the Israeli clean-tech power scene with his Leviathan Energy company’s award-winning Wind Tulip. The ecologically conscious physician recently unveiled his latest brainchild, a turbine that turns excess pressure inside […]
Inner Mongolia’s rivers are feeding China’s coal industry, turning grasslands into desert. In India, thousands of farmers have protested diverting water to coal- fired power plants, some committing suicide. The struggle to control the world’s water is intensifying around energy supply. China and India alone plan to build $720 billion of coal-burning plants in two […]
University of California, San Diego electrical engineers are building a forest of tiny nanowire trees in order to cleanly capture solar energy without using fossil fuels and harvest it for hydrogen fuel generation. Reporting in the journal Nanoscale, the team said nanowires, which are made from abundant natural materials like silicon and zinc oxide, also […]
PLEASE NOTE THAT THERE WILL BE A PRICE INCREASE IN JANUARY 2019. LAST ORDERS FOR 2018 WILL NEED TO BE PLACED BY 12/12/2018.
- Fear of a dry future for Cape Town June 27, 2018
- What is Raw Water, and is it healthy? January 7, 2018
- Rainwater Harvesting Calculator – South Africa December 29, 2017
- Lowveld Dam Levels – Watch out for the 2017/2018 dry season March 29, 2017
- Climate Watch for South Africa March 29, 2017
- Washing Machine Water Efficiency March 26, 2011
- Don’t Let your Swimming Pool Backwash Water Damage the Environment May 11, 2010
- The Use of Wind Turbines vs Solar Power in South Africa May 8, 2010
- The FIFA World Cup’s Carbon Impact June 4, 2010
- What is a Natural Swimming Pool? May 6, 2010