New Ways to Store Solar Energy for Nighttime and Cloudy Days: Solar power, the holy grail of renewable energy, has always faced the problem of how to store the energy captured from the sun’s rays so that demand for electricity can be met at night or whenever the sun is not shining. The difficulty is that electricity is hard to store. Batteries are not up to efficiently storing energy on a large scale. A different approach being tried by the solar power industry could eliminate the problem. The idea is to capture the sun’s heat. [NYT]
Is green air travel becoming a reality?: It sounds too good to be true – a plane so green that it produces no carbon emissions whatever and so clean that the only thing its engines release into the atmosphere is pure water. But this month Boeing revealed that it already exists, and made three test flights in February and March at the company’s European research centre near Madrid. [Guardian]
Technology Smooths the Way for Home Wind-Power Turbines: Wind turbines, once used primarily for farms and rural houses far from electrical service, are becoming more common in heavily populated residential areas as homeowners are attracted to ease of use, financial incentives and low environmental effects. [NYT]
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