Tag Archives: Diablo Canyon Nuclear Plant

Diablo Canyon nuclear plant will shut down

This is bad news and good news, but mostly good news. No matter what you think of nuclear energy (and I’m one of those people who give it a stern look and remain suspicious), it does tend to produce electricity with the addition of much less fossil carbon into the atmosphere than, say, burning coal. So, we probably don’t want to see a wholesale reduction in the use of nuclear energy too quickly, and we may even want to see some new plants built.

The Diablo Canyon nuclear plant is the only working nuke plant in California, and it is famously located in an earthquake-rich locality. The plant was upgraded to withstand a 7.5 earthquake, but earthquakes occasionally happen that are stronger than that. There has only been one earthquake of that magnitude in Southern California since good records have been kept, and that was in 1952. But still….

Diablo Canyon is historically important because the whole idea of building a major nuclear plant in an earthquake zone catalyzed the anti-nuclear movement, and that reaction probably helped to avoid further such construction, and helped nudge the plant operators to upgrade the earthquake readiness of this plant from handling a 6.75 magnitude quake to a 7.5 magnitude quake. There have been six quakes in that range of magnitude in the region in the historic record.

A quick word about earthquakes. Really large earthquakes are actually pretty uncommon in Southern California; other areas, such as the Pacific Northwest have very few quakes but when they happen they can be huge, easily enough to Fuki up a plant like Diablo Canyon. See Earthquake Time Bombs by Robert Yeats for more on that. Nonetheless, being built to withstand a 7.5 earthquake doesn’t necessarily mean that a smaller quake won’t cause problems, or weaken structures that are then more vulnerable to subsequent strong quakes.

Anyway, the following is from a press release from Friends of the Earth, describing how the plan is to replace the energy coming from Diablo Canyon with non fossil carbon fuels. And that, of course, is the extra good news.

BERKELEY, CALIF. – An historic agreement has been reached between Pacific Gas and Electric, Friends of the Earth, and other environmental and labor organizations to replace the Diablo Canyon nuclear reactors with greenhouse-gas-free renewable energy, efficiency and energy storage resources. Friends of the Earth says the agreement provides a clear blueprint for fighting climate change by replacing nuclear and fossil fuel energy with safe, clean, cost-competitive renewable energy.

The agreement, announced today in California, says that PG&E will renounce plans to seek renewed operating licenses for Diablo Canyon’s two reactors — the operating licenses for which expire in 2024 and 2025 respectively. In the intervening years, the parties will seek Public Utility Commission approval of the plan which will replace power from the plant with renewable energy, efficiency and energy storage resources. Base load power resources like Diablo Canyon are becoming increasingly burdensome as renewable energy resources ramp up. Flexible generation options and demand-response are the energy systems of the future.

By setting a certain end date for the reactors, the nuclear phase out plan provides for an orderly transition. In the agreement, PG&E commits to renewable energy providing 55 percent of its total retail power sales by 2031, voluntarily exceeding the California standard of 50 percent renewables by 2030.

“This is an historic agreement,” said Erich Pica, president of Friends of the Earth. “It sets a date for the certain end of nuclear power in California and assures replacement with clean, safe, cost-competitive, renewable energy, energy efficiency and energy storage. It lays out an effective roadmap for a nuclear phase-out in the world’s sixth largest economy, while assuring a green energy replacement plan to make California a global leader in fighting climate change.”

A robust technical and economic report commissioned by Friends of the Earth served as a critical underpinning for the negotiations. The report, known as “Plan B,” provided a detailed analysis of how power from the Diablo Canyon reactors could be replaced with renewable, efficiency and energy storage resources which would be both less expensive and greenhouse gas free. With the report in hand, Friends of the Earth’s Damon Moglen and Dave Freeman engaged in discussions with the utility about the phase-out plan for Diablo Canyon. NRDC was quickly invited to join. Subsequently, International Brotherhood of Electrical Workers Local 1245, Coalition of California Utility Employees, Environment California and Alliance for Nuclear Responsibility partnered in reaching the final agreement. The detailed phase out proposal will now go to the California Public Utility Commission for consideration. Friends of the Earth (and other NGO parties to the agreement) reserve the right to continue to monitor Diablo Canyon and, should there be safety concerns, challenge continued operation.

The agreement also contains provisions for the Diablo Canyon workforce and the community of San Luis Obispo. “We are pleased that the parties considered the impact of this agreement on the plant employees and the nearby community,” said Pica. “The agreement provides funding necessary to ease the transition to a clean energy economy.”

Diablo Canyon is the nuclear plant that catalyzed the formation of Friends of the Earth in 1969. When David Brower founded Friends of the Earth the Diablo Canyon was the first issue on the organization’s agenda and Friends of the Earth has been fighting the plant ever since. This agreement is not only a milestone for renewable energy, but for Friends of the Earth as an organization.