A sprawling solar farm is planned for sunny central Washington State.
Congress pushes back against the Obama administration's decision to stop research into hydrogen-powered vehicles.
Oil tycoon T. Boone Pickens is backing out of a planned 4,000-megawatt wind farm.
But the bill, which includes caps on carbon dioxide emissions, is still far from becoming law.
Another state forgoes a commonsense approach to reducing gas consumption.
The future of the Model S depended on government loans, which have now been approved.
A new electric vehicle uses polymer-electrolyte batteries.
The chairman of the California Air Resources Board responds to the energy secretary's anti-hydrogen-fuel-cell stance.
Plentiful natural gas could help reduce carbon emissions, but it could also delay zero-carbon technology.
Some powerful industries may yet find ways to shift the burden of reducing emissions to others.