The Supreme Court ruled that EPA acted “unreasonably” when it failed to consider costs before deciding to regulate mercury and other toxic emissions from power plants under the Clean Air Act.

Gas producers are “listening loud and clear” to environmental concerns about fracking, James Tramuto, vice president of governmental and regulatory strategies for Southwestern Energy.

Increased use of renewable energy will depress energy prices, increase capacity prices and lead to early retirement of baseload plants, according to ISO-NE.

With its reliance on demand response and behind-the-meter generation increasing amid generator retirements, MISO plans to update the way it sets prices during emergency resource offers.

FERC said it expects sufficient resources to meet peak electric demand this summer despite coal-fired retirements, while NERC approved its summer reliability assessment.

MISO and ISO-NE said they have sufficient resources to meet summer demand but warned that their reserve margins are shrinking due to plant retirements.

Andy Ott, PJM’s executive vice president of markets, will replace Terry Boston as president and CEO later this year, PJM announced Wednesday.

MISO launched the first in a series of stakeholder workshops dedicated to improving resource adequacy as the RTO deals with the retirement of coal-fired generation and the growth of natural gas and renewables.

FERC last week approved a MISO proposal to exempt some owners of retiring coal plants from capacity deficiency penalties.