Listen Up: Improving Solar Panel Output with Optimizers Read more

Listen Up: Improving Solar Panel Output with Optimizers

Solar panels keep getting more efficient. That’s a great thing. But they can’t communicate, can’t adjust to environmental circumstances, and don’t have automatic shutdown capabilities. Fortunately — and with apologies to the Farrelly brothers (who seem to have similar limitations) — solar panels aren’t getting any dumber. Many of the newest solar panels are equipped with optimizers, either built into the junction box or attached as a separate component to the back of the panel. Microinverters (which convert the DC output of a panel to AC) provide the same basic benefits at similar costs; however, unlike microinverters, optimizers operate on the DC side of the system and are always connected to a central or string inverter.

Why Geothermal Heat Pumps Should be a Carbon Reduction Tool for Coal Plants Read more

Why Geothermal Heat Pumps Should be a Carbon Reduction Tool for Coal Plants

The Geothermal Exchange Organization (GEO) is seeking a partnership with the U.S. Environmental Protection Agency (EPA) to cut pollution that degrades our health and contributes to climate change. On Nov. 4, GEO submitted comments to EPA urging that renewable thermal energy and geothermal heat pumps be recognized in its proposed rulemaking under Section 111(d) of the U.S. Clean Air Act to cut carbon pollution from existing power plants. The proposed rule allows flexibility in meeting the agency’s desired emissions reductions across the nation, including renewable energy and energy efficiency.

SunEdison/TerraForm Power Buy First Wind For $2.4 Billion To Achieve Renewable Energy Dominance Read more

SunEdison/TerraForm Power Buy First Wind For $2.4 Billion To Achieve Renewable Energy Dominance

In a surprising diversification move, SunEdison has launched into the wind sector and positioned itself to be the world’s largest renewable energy development company. Yesterday morning, SunEdison announced that it is joining with its indirect subsidiary TerraForm Power to purchase First Wind for US $2.4 billion, in a “very complex but very value added deal,” said Ahmad Chatila, the president and chief executive officer of SunEdison, based in Maryland Heights, Mo.