Heating, Cooling and HVAC

Researchers at Massachusetts Institute of Technology (MIT) have discovered a new way of storing energy from sunlight. The breakthrough could potentially lead to ‘unlimited’ solar power.
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The process, which is loosely based on plant photosynthesis, uses solar energy to split water into hydrogen and oxygen gases. When needed, the gases can then be re-combined in a fuel cell, creating carbon-free electricity whether the sun is shining or not.

The process uses natural materials, is inexpensive to conduct and is easy to set up.

Sources:
Clean Technica October 27, 2008