Stanford scientists have developed a water-based battery that could provide a cheap way to store wind or solar energy, which can be fed back into the electric grid and redistributed on high demand.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/new-water-based-battery-store-solar-wind-energy
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wind-energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-technology
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/leds
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fossil-fuels
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy