Utility Customers Could Save Millions from Dominion Coal Plant Retirements, New Expert Analysis Shows

A new analysis filed this week says South Carolina utility Dominion Energy could save its customers money by sticking to its plan to retire two coal plants rather than delaying their closure. The Wateree plant is set to retire in 2032 and the Williams plant in 2034. Expert testimony from the Sierra Club argues that if Dominion keeps the plants running past those dates, it would produce far more electricity than the region needs by 2033, and ratepayers would end up covering roughly $200 million to meet federal rules on coal plant wastewater.

The analysis found that once Dominion's new Canadys gas plant is up and running, the utility can retire both coal plants and still keep the same level of grid reliability customers have now, even if electricity demand grows faster than Dominion currently expects. Critics say Dominion has pushed back these coal retirement dates before, adding costs and pollution exposure for South Carolinians in the meantime.

For homeowners in Dominion's South Carolina service territory, this is a dispute over how the utility plans its power supply for the next decade, not something requiring any action on your end. But utility planning decisions like this affect what you pay on your electric bill and the air quality in your area, so how state regulators rule on Dominion's energy plan is worth watching if you live in the region.