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SolarReserve lands deals to build concentrating solar power plants that can deliver power even with the sun isn't shining by using heated salt as storage.
In the discussion over the direction of clean energy, solar and wind figure heavily but now nuclear power is increasingly proposed as a complement to renewable energy.
Researching technology breakthroughs is worthwhile, but people in renewable energy say the U.S. needs to speed up installation of products to lower costs and stay competitive globally.
His new Gates Notes site reveals how deeply he is researching the topics of energy and environment, areas he says are ripe for technology innovation.
IBM's "green innovation" data center uses cutting-edge technologies, such as temperature sensors, and building designs aimed at cutting energy consumption.
One of the world's leading physicists warns that wind energy is a waste of resources and that solar energy should be the focus.
Energy Secretary Steven Chu explains the strategy for nuclear-fuel storage and power generation. In Washington, progress--and compromises--on an energy and climate bill.
Abengoa Solar, a company focused on renewable energy technology, says that its second solar tower near Seville generates 20 megawatts of electricity.
The pace of change surrounding technology in clean energy and efficiency hasn't been this fast in years. As Earth Day nears, we take a measure of which areas look most promising.
Massachusetts firm GreatPoint Energy is one of few green-tech start-ups with "steel in the ground," testing a method for turning coal into cleaner-burning natural gas.