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One of the main hindrances of solar energy is that when there is no more sun, there is no more electricity as well. This problem is being solved with the molten salt technology which stores energy for seven hours.
A Californian company is willing to build a 150 Megawatt plant – The Rice Solar Energy Project – using this technology in the Sonoran Desert near Palm Springs. A similar project with 280 MW of capacity could soon be built in Arizona.
Answering the main issue faced by solar, molten salt and similar technologies will play an important role if solar is due to answer a quarter of our global electricity needs.
