Saturday, November 14, 2009

Solar power at night? Yes, with a grain of salt

In the past few years, something remarkable has emerged on a dry plateau in the Spanish province of Granada. The Andasol plant stores heat from the day in molten salt, which then powers electricity turbines overnight. The plant can continue for 7½ hours without sunlight, and more advanced plants coming online in the next few years are set to double that storage time.


The bottom line is ...

No need to worry when the sun sets or its overcast.

No comments: