Nuclear Plants in Cost of Service Regulation and Merchant Markets

State Plant Operator Status Organized Wholesale Market
Alabama Browns Ferry Tennessee Valley Authority Cost of Service Regulation -
  Joseph M. Farley Southern Nuclear Operations Co. LLC Cost of Service Regulation -
Arizona Palo Verde Arizona Public Service Co. Cost of Service Regulation -
Arkansas Arkansas Nuclear One Entergy Arkansas LLC Cost of Service Regulation MISO
California Diablo Canyon Pacific Gas & Electric Co. Cost of Service Regulation CAISO
Connecticut Millstone Dominion Energy Nuclear Connecticut Inc. Merchant ISONE
Florida St. Lucie Florida Power & Light Co. Cost of Service Regulation -
  Turkey Point Florida Power & Light Co. Cost of Service Regulation -
Georgia Edwin I. Hatch Southern Nuclear Operations Co. LLC Cost of Service Regulation -
  Vogtle Southern Nuclear Operations Co. LLC Cost of Service Regulation -
Illinois Braidwood Generating Station Exelon Generation Co. LLC Merchant PJM
  Byron Generating Station Exelon Generation Co. LLC Merchant PJM
  Clinton Power Station Exelon Nuclear Merchant MISO
  Dresden Exelon Generation Co. LLC Merchant PJM
  LaSalle Exelon Generation Co. LLC Merchant PJM
  Quad Cities Exelon Generation Co. LLC Merchant PJM
Kansas Wolf Creek Generating Station Wolf Creek Nuclear Operations Corp. Cost of Service Regulation SPP
Louisiana River Bend Entergy Nuclear Generation Co. Cost of Service Regulation MISO
  Waterford 3 Entergy Louisiana LLC Cost of Service Regulation MISO
Maryland Calvert Cliffs Nuclear Power Plant Calvert Cliffs Nuclear Power Plant Inc Merchant PJM
Michigan Donald C. Cook Indiana Michigan Power Co.  Cost of Service Regulation PJM
  Fermi  DTE Electric Co. Cost of Service Regulation MISO
Minnesota Monticello Northern States Power Co. Cost of Service Regulation MISO
  Prairie Island Northern States Power Co. Cost of Service Regulation MISO
Mississippi Grand Gulf Nuclear Station System Energy Resources Inc. Cost of Service Regulation MISO
Missouri Callaway Ameren Missouri Cost of Service Regulation MISO
Nebraska Cooper Nebraska Public Power District Cost of Service Regulation SPP
New Hampshire NextEra Energy Seabrook NextEra Energy Seabrook LLC Merchant ISONE
New Jersey Hope Creek PSEG Nuclear LLC Merchant PJM
  PSEG Salem Generating Station PSEG Nuclear LLC Merchant PJM
New York James A. Fitzpatrick Exelon Generation Co. LLC Merchant NYISO
  Nine Mile Point Nuclear Station Nine Mile Point Nuclear Station LLC Merchant NYISO
  R.E. Ginna R.E. Ginna Nuclear Power Plant LLC Merchant NYISO
North Carolina Brunswick Duke Energy Progress Cost of Service Regulation -
  Harris Duke Energy Progress Cost of Service Regulation -
  McGuire Duke Energy Carolinas Cost of Service Regulation -
Ohio Davis-Besse FirstEnergy Nuclear Operating Co. Merchant PJM
  Perry FirstEnergy Nuclear Operating Co. Merchant PJM
Pennsylvania Beaver Valley Energy Harbor Nuclear Corp. Merchant PJM
  Limerick Exelon Generation Co. LLC Merchant PJM
  Peach Bottom Exelon Generation Co. LLC Merchant PJM
  Susquehanna Susquehanna Nuclear LLC Merchant PJM
South Carolina Catawba Duke Energy Carolinas Cost of Service Regulation -
  H.B. Robinson Duke Energy Progress Cost of Service Regulation -
  Oconee Duke Energy Carolinas Cost of Service Regulation -
  V.C. Summer Dominion Energy South Carolina Cost of Service Regulation -
Tennessee Sequoyah Tennessee Valley Authority Cost of Service Regulation -
  Watts Bar Tennessee Valley Authority Cost of Service Regulation -
Texas Comanche Peak Luminant Merchant ERCOT
  South Texas STP Nuclear Operating Co. Merchant ERCOT
Virginia North Anna Virginia Electric & Power Co. Cost of Service Regulation PJM
  Surry Virginia Electric & Power Co. Cost of Service Regulation PJM
Washington Columbia Generating Station Energy Northwest Cost of Service Regulation -
Wisconsin Point Beach* NextEra Energy Point Beach LLC Merchant MISO
* Point Beach has a long-term power purchase agreement.

Source: U.S. Energy Information Administration, state public service commissions
Updated: August 2022