I love renewable energy. It fascinates and excites me in all my geekness. But it needs to be competitive. Is the tide turning (get it?)? Science Daily:

Apr. 24, 2013 — Researchers from the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a low-cost, long-life battery that could enable solar and wind energy to become major suppliers to the electrical grid.