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Dominion Energy South Carolina has filed its modified integrated resource plan (IRP), including a “preferred” scenario that would retire its coal generation fleet by 2030, and convert its Cope Station coal plant to natural gas.
The majority of Dominion’s scenarios included large blocks of solar and solar-plus-battery-storage added between 2030 and 2048, with the potential to add 2,000 MW of solar from 2026 to 2048, up from the 973 MW of utility-scale solar already contracted, as well as 700 to 900 MW of battery storage.
Dominion submitted 14 different generation resource plans after regulators unanimously rejected its 2020 filing in December finding that the utility had misrepresented its fuel costs, and lacked demand side management resource options. The South Carolina Public Service Commission (PSC) specifically asked the utility to model an early retirement of its coal fleet, and three of Dominion’s plans assume that scenario.