Massachusetts regulators have issued stricter limits on greenhouse gas (GHG) emissions from the state’s fossil fuel power plants.

A $40/ton carbon emissions charge in NY state would have “a relatively small impact” on customer costs, according to an analysis released by NYISO.

DTE Energy asked the Supreme Court to review a lower court’s ruling upholding EPA’s power to halt construction at plants in violation of the Clean Air Act.

Tony Clark’s term as FERC commissioner ended nine months ago, but he hasn’t stopped thinking about the issues that animated him during his four-year tenure.

Connecticut Governor Dannel P. Malloy ordered state regulators to assess the economic viability of the Millstone nuclear power plant.

A federal judge on Tuesday dismissed all claims in a suit against New York state’s zero-emissions credit (ZEC) program.

Congress rejected President Trump’s proposal for deep budget cuts at EPA and the Department of Energy (DOE).

Industry representatives and state regulators gave an overview of the changing landscape at the NARUC Summer Policy Summit.

Both houses of the California State Legislature voted late Monday to extend the state’s greenhouse gas (GHG) cap-and-trade program until 2030.

A California Senate bill that would require utilities to obtain all their electricity from zero-carbon sources advanced through a key committee.