With the emerging wind power industry, we are destined to see a select few companies make a killing with solutions to store wind / solar energy and disperse the energy as needed.
Are there any publicly traded companies who are major players in wind/solar energy storage?
There are too many to list, but here is a starting point for your research:
http://www.google.com/search?q=solar+wind+energy+storage&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a