DOE is backing a California research team with up to $122 million for establishing an energy innovation hub to develop a method of producing fuels from sunlight. Cal Tech will lead the team in partnership with DOE's Lawrence Berkeley National Laboratory and other California institutions.

DOE has announced up to $30 million in funding for 15 research partnerships that aim to deliver innovative energy efficiency strategies to the residential housing market.

DOE has signed a Memorandum of Understanding with the U.S. Department of Defense aimed at accelerating clean energy innovation while strengthening energy security.

Maine has signed a Memorandum of Understanding with Nova Scotia, pledging to work cooperatively on renewable electricity from ocean tidal energy and offshore wind energy.

An unmanned solar-powered aircraft stayed aloft over an Arizona proving ground for 14 days, smashing records for such flights, according to its makers.

The International Renewable Energy Agency (IRENA) has become a chartered international organization 18 months after its founding. IRENA seeks to promote renewable energy use among its global member states.