U.S. Energy Secretary Jennifer Granholm said that while a lot of progress has been made, getting to a fully decarbonized economy is going to require new technologies.

States, RTOs and others warned DOE not to let transmission developers dominate the development of National Interest Electric Transmission Corridors.

Arizona’s decision to join the U.S. Climate Alliance could rev the state’s clean energy economy, some observers said, but others warn that politics could get in the way.

Washington’s second cap-and-trade auction netted more than $557 million in revenue after bidders bought all 11.035 million carbon allowances on offer last week.

EPA will propose new emission standards for cars and trucks that could lead to two-thirds of total light-duty vehicles sold in 2032 being electric.

The EPA approved a waiver for California’s Advanced Clean Trucks regulation, clearing the way for the state to launch the zero-emission program.

Stakeholders told the New York PSC that utilities’ proposed transmission planning framework could favor local upgrades over more efficient regional projects.

A group pressing Massachusetts’ transition to carbon-free fuels is trying to head off consideration of hydrogen as a wide-scale replacement for natural gas.