First, on May 19th, energy risk analysis leader 3TIER and weather risk management firm Galileo announced that they would be offering financial products to hedge the risk of wind variability.

FORBES: Financial Innovation is Blowin' in the Wind

Despite all the talk of grid-based energy storage, the least expensive solution to the variability of wind and solar power is geographic dispersion, according to Leo Casey, Chief Technology Officer of Boston-based inverter company Satcon Technology, (NASD:SATC) speaking at the Building Energy 11 conference in Boston on March 9th.

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But the intermittent nature of wind power can cause just that sort of variability.

ECONOMIST: Compressed air might help to make wind power more reliable