Scientists at MIT have developed what may be the holy grail of of solar power. In the past, the problem with solar was keeping the electricity flowing at night. Storing excess energy for use after sundown has traditionally been really expensive and highly inefficient. Now, by mimicking the way plants store energy MIT has created a way to store solar power in fuel cells that can keep power running around the clock.

MIT News reports:

Requiring nothing but abundant, non-toxic natural materials, this discovery could unlock the most potent, carbon-free energy source of all: the sun. “This is the nirvana of what we’ve been talking about for years,” said MIT’s Daniel Nocera, the Henry Dreyfus Professor of Energy at MIT and senior author of a paper describing the work in the July 31 issue of Science. “Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited and soon.”

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