One of the conundrums of solar energy is that when the sun doesn't shine, you don't get any energy. The race is on to figure out how to store solar energy so that it can be used on a rainy day. Molten salt in the Arizona desert may offer one approach to storing the sun's energy at night. This isn't just a high school science project-an Arizona utility Arizona Public Service is betting $2 billion (with a b) that this approach will work. The plant which is known as Solana started its operations earlier this month and will provide enough power for about 70,000 homes.
More...
More...
Comment