Riopaila Castilla, Columbia's largest sugar producer by market share (20%), recently announced that its board of directors approved a proposal that would allow the company to build a 35-megawatt biomass cogeneration plant at a cost of around $48 million.

Researchers assessing the state's potential for renewable energy say Virginia could realistically meet half of its nearly 20,000-megawatt power demand by the year 2035 with clean, sustainable sources like solar, onshore and offshore wind, and biomass.

While lofty expectations have being placed on the future of plug-in hybrid cars and electric trucks, another, less-heralded green transportation boom is taking place: the rise of natural gas vehicles.

DuPont, the leading U.S. chemical maker, and Yingli Green Energy Holding Co., a top Chinese PV panel manufacturer, reached a $100 million deal this week with the goal of boosting supplies of solar-energy materials and promoting broader adoption of solar energy worldwide.

The Ohio Power Siting Board, the state utility regulatory agency, has given the green light to start building the Black Fork Wind Farm, a 200-megawatt facility that will be capable of generating enough clean electricity to power 10,000 homes.

Seattle-based AltaRock Energy, Inc. and Davenport Newberry Holdings LLC of Stamford, Connecticut, geothermal energy project developers, this summer plan to test the energy potential of the Newberrry Volcano, located about 20 miles south of Bend, Oregon.

The Plainfield Renewable Energy Biomass Project, a proposed power plant in Connecticut owned by Atlanta-based Enova Energy Group, this week received a guarantee of funding to move ahead to the construction phase.