The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these \”solar thermal collectors\” use the sun\’s energy to heat water, space, or both. … learn more→
Tag Archives: renewable energy
Harnessing the sun\’s energy for water and space heating
U.S. Carbon emissions down 7 percent in four years: Even bigger drops are coming
Between 2007 and 2011, carbon emissions from coal use in the United States dropped 10 percent. During the same period, emissions from oil use dropped 11 percent. In contrast, carbon emissions from natural gas use increased by 6 percent. The net effect of these trends was that U.S. carbon emissions dropped 7 percent in four […] … learn more→
Solar PV breaks records in 2010
Solar photovoltaic (PV) companies manufactured a record 24,000 megawatts of PV cells worldwide in 2010, more than doubling their 2009 output. Annual PV production has grown nearly 100-fold since 2000, when just 277 megawatts of cells were made. Newly installed PV also set a record in 2010, as 16,600 megawatts were installed in more than […] … learn more→
Australia could lead with world\’s cheapest renewable energy
Australia has the potential to produce some of the world\’s cheapest renewable energy, meeting all its energy demands by 2050, in line with the release of a major new study by WWF. The Energy Report, which breaks new ground with its global study of total energy needs, including transport and energy availability, found that the […] … learn more→
A whole country that runs on renewable energy
I’ve known for years that Iceland is a geothermal paradise, so when we went there this summer, I made sure to pay some attention to the power supply. As it turned out, that was absurdly easy to do. You can\’t travel in Iceland without encountering the power of geothermal energy, and many Icelanders we met […] … learn more→