Startup QBotix uses a robot traveling along a track in solar farm to optimize the angle of light on panels.
Existing technologies to improve engine fuel efficiency will get a boost, but it's still unclear what approaches are most cost-effective to meet the standard of 54.5 miles per gallon.
Eric Toone, the principal deputy director of ARPA-E, discusses where the research agency is seeking technical breakthroughs in energy.
Consolidation in solar continues as Germany's Q-Cells reaches an agreement to be acquired by Hanwha Group.
Waste Management signs a deal with Renmatix to explore making fuel and high-value chemicals from urban waste.
The world's largest wind turbine maker is cutting employees to prepare for softer demand and adjust to unknowns in U.S. policy.
An IBM-led research teams says that a combination of copper, zinc, tin, and selenium (CZTS) could meet current thin-film efficiencies with more abundant materials.
Weather and drought have caused disruptions to power generation, made oil drilling harder, and could affect corn ethanol production.
Even the always-bullish Tesla Motors founder says the next six months will be "very tough" for the electric car maker as it seeks more customers.
The choice of Ryan, a harsh critic of Obama's clean-energy agenda, as vice presidential candidate sharpens the differences between the two presidential candidates and parties.