Diablo Canyon 1 & 2

Basic Facts:

  • Location: Avila Beach, California
  • Owner: PG&E Corporation
  • Operator: Pacific Gas & Electric Company
  • Construction Cost: $14B (2018$)
  • Plant Output: 2,250 MW
  • Property Size: 1,000 acres
  • Scheduled Shut Down: Unit 1 (2024) and Unit 2 (2025)
  • Employees: 1,300
  • Current DTF Balance: $2.9B (2018$)
  • DTF Balance Prior to Decommissioning: $4.5B (2018$)
  • Decommissioning Cost Estimate: $1.0B (2018$)
  • Spent Nuclear Fuel On Site: 1,388 tons
(FILES) This file photo taken on March 17, 2011 shows an aerial view of the Diablo Canyon Nuclear Power Plant which sits on the edge of the Pacific Ocean at Avila Beach in San Luis Obispo County, California.
Under a proposal announced on June 21, 2016 by Pacific Gas and Electric, the Diablo Canyon Power Plant, the states last operating nuclear facility, would be shuttered by PG&E after its current Nuclear Regulatory Commission operating licenses expire in November 2024 and August 2025. The power produced by Diablo Canyons two nuclear reactors would be replaced with investment in a greenhouse-gas-free portfolio of energy efficiency, renewables and energy storage, PG&E said in a statement. The power output loss would be compensated by using technologies that do not emit greenhouse gases, including renewable energy. 


Diablo Canyon 1 and 2 are both pressurized water reactors coming online in 1985 and 1986 respectively. In 2016, PG&E announced that the operating licenses would not be renewed when they expire in 2024 (for Unit 1) and in 2025 (for Unit 2). Additional information on Diablo Canyon’s decommissioning planning efforts may be found here.


Diablo Canyon is located within San Luis Obispo County, California. As of 2016:

  • Population: 280,000
  • Per Capita Annual Income: $51,400
  • Unemployment rate (not seasonally adjusted): 3.6%

Annual tax payments (approximately $15M) from Diablo Canyon account for approximately 6% of the county’s annual budget.

Contact Information

Economic Development Administration Representative:

  • Wilfred Marshall, Los Angeles Regional Office, t: (310) 348-5386, e: [email protected]

Nuclear Regulatory Commission

Unless specific costing information has been provided, decommissioning costs were derived from 2017 Decommissioning Funding Status Report.
Information herein obtained from public sources. Corrections are welcome and may be directed to [email protected].

(802) 345-7044




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