Researchers find method to store solar power

CHAPEL HILL, N.C — CHAPEL HILL, N.C. - A team of North Carolina researchers has discovered a potential solution to one of the fundamental problems of generating large amounts of energy from the sun's rays: how to store some of the power so it's available at night. The scientists found a new way to use solar energy to split molecules of water into its atomic-level components: oxygen and hydrogen. The hydrogen can then be burned for fuel, generating only water as waste, which can...