So much power was produced by Denmark’s windfarms on Thursday that the country was able to meet its domestic electricity demand through energy efficiency and export power to Norway, Germany and Sweden. On an unusually windy day, Denmark found itself producing 116% of its national electricity needs from wind turbines yesterday evening. By 3am on Friday, when electricity demand dropped, that figure had risen to 140%. Interconnectors allowed 80% of
Over the course of almost three weeks, the LightSail spacecraft has been the little satellite that could, then couldn't, then could again, couldn't again, and finally did succeed in its mission. On Tuesday, it sent back to Earth a gorgeous image of its nearly full solar sail deployment. Whole home surge protector The small satellite from the Planetary Society, whose CEO is the widely known science educator Bill Nye, finally began
A new solar electricity generation system that developers claim is the most efficient in the world, is being tested in South Africa’s Kalahari desert. The Swedish company behind the project - which combines military technology with an idea developed by a 19th-century Scottish engineer and clergyman - says it is on the verge of building its first commercial installation. In the remote Northern Cape province, huge mirrors reflect the sun
Researchers at Michigan State University have created a fully transparent solar concentrator, which could turn any window or sheet of glass (like your smartphone’s screen) into a photovoltaic solar cell. Unlike other “transparent” solar cells that we’ve reported on in the past, this one really is transparent, as you can see in the photos throughout this story. According to Richard Lunt, who led the research, the team are confident that
Ultra-high efficiency solar cells similar to those used in space may now be possible on your rooftop thanks to a new microscale solar concentration technology developed by an international team of researchers. "Concentrating photovoltaic (CPV) systems leverage the cost of high efficiency multi-junction solar cells by using inexpensive optics to concentrate sunlight onto them," said Noel C. Giebink, assistant professor of electrical engineering, Penn State. "Current CPV systems are the
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Since the final gavel fell at the Lima climate talks earlier this month, discussions have centred on one question: what did the talks actually accomplish? After two weeks of intense negotiation, governments settled on a draft text that will hopefully lead to a successful global climate deal in Paris next December. While opinions vary regarding the success or failure of the outcome, there is another story emerging outside the negotiation
Solar panels embedded in the cycle path near Amsterdam could generate enough electricity to power three houses, with potential to extend scheme to roads The bike path that connects the Amsterdam suburbs of Krommenie and Wormerveer is popular with both school children and commuters: around 2,000 cyclists ride its two lanes on an average day. But next week Krommenie’s cycle path promises to become even more useful: on 12 November
Could a long-vacant cigarette factory in North Carolina build the rechargeable solar energy battery that will unlock the future of the clean energy economy? The Swiss-based Alevo Group launched the new battery technology on Tuesday. After spending $68.5m (£42.5m) for the factory, the group said it would spend up to $1bn to develop a system that would get rid of waste on the grid and expand the use of wind