EPA poised to scrap power plant carbon standards

The EPA is expected to formally roll back federal limits on carbon pollution from fossil fuel power plants, completing a series of climate rule repeals under the Trump administration. The move would undo standards put in place under the Obama and Biden administrations and could make it harder for future administrations to regulate greenhouse gas emissions from power plants at all.

For homeowners, this doesn't change anything about your utility bill or your house directly, but it does affect the electricity that powers it. Power plants are the second-largest source of greenhouse gas emissions in the country, and city and environmental groups warn that fewer limits on that pollution mean more public health and infrastructure risks, especially in cities. They also note that cleaner power plants have a ripple effect: less pollution from electricity generation helps offset emissions from buildings and cars, since both increasingly run on electricity.

The EPA has estimated the repeal would save the power sector about $1.2 billion a year, plus another $120 million a year from rolling back mercury emission rules. But when the original standards were issued in 2024, the agency projected they would deliver $370 billion in net benefits over twenty years. Legal fights are already underway over related rollbacks, including lawsuits from dozens of states and cities, so this repeal is likely to face court challenges too. For now, it's a shift in federal policy on power-plant pollution, not a change to any rebate or program that homeowners use directly.