The aging Indian Point nuclear power plant just north of New York City will close within about four years under a deal with Gov. Andrew Cuomo, who has long argued it should be shuttered to protect the millions of people living nearby.

Under the arrangement, plant owner Entergy Corp. will shut both reactors at the Westchester County facility by April 2021. A person familiar with the agreement but not authorized to speak publicly confirmed the agreement on the condition of anonymity to The Associated Press on Friday.

It remains to be seen how the state would make up for the loss of electrical generation once the plant closes. Entergy says its facility, which has 1,050 employees, supplies the equivalent of a quarter of the power used in New York City and Westchester County. The facility’s reactor units began commercial operation in 1974 and 1976.

More than 17 million people live within 50 miles of the facility, which sits alongside the lower Hudson River about 30 miles north of New York City, the nation’s biggest city. Cuomo, a Democrat, has long argued that operating a nuclear plant so close to a major population center poses a potential safety hazard.

On Sept. 11, 2001, one of the hijacked planes flew over the nuclear plant before crashing into the World Trade Center.

New Orleans-based Entergy declined to comment on the deal, which was first reported by The New York Times.

Cuomo spokesman Richard Azzopardi said any talk of an agreement was premature.

“Gov. Cuomo has been working on a possible agreement for 15 years and until it’s done, it’s not done,” Azzopardi wrote in an email. . Close only counts for horseshoes, not for nuclear plants.”

The agreement requires Entergy to make repairs and upgrades to Indian Point and its spent fuel storage system. It would give the state time to find an alternative source of electricity and allow the closure deadline to be delayed a few years if the state and Entergy agree.

State Sen. Terrence Murphy, a Westchester County Republican, said he was “shocked” by news of the deal to close the plant and said he was trying to gather information about what the closing would mean for the community.

“I can assure you, we are going to work in a bipartisan way to make sure the people who live and work here are taken care of.”

Others who worked on the agreement include Attorney General Eric Schneiderman, also a Democrat, and the environmental organization Riverkeeper.

“If we can shut-down Indian Point under an agreement that enhances public safety and kick-starts investment into safer and more reliable renewable energy sources, that will be a major victory for the millions of New Yorkers who live in the region,” Schneiderman said in a statement.

Area resident Marilyn Elie, who has long pressed to close the plant, 3 miles from her home, was hopeful, though she feels the plant should close immediately.

“It’s what we’ve been fighting for for decades,” said Elie, a leader of the Indian Point Safe Energy Coalition. But she wondered how strong the closure guarantee would be, “and is five years soon enough?”

The plan to close Indian Point stands in contrast with Cuomo’s stance on upstate nuclear power. The state has authorized up to $7.6 billion in ratepayer subsidies to keep three aging upstate nuclear plants operating. Cuomo has said the nuclear power produced at those facilities is preferable to coal or natural gas as the state transitions to renewable energy.

Long-time critics of the plant hailed news of the deal but questioned Cuomo’s differing approaches to nuclear power upstate and downstate.

“Apparently, in Governor Cuomo’s eyes, nuclear power is too dangerous for New York City but fine for upstate residents,” said Alex Beauchamp, northeast regional director for the environmental group Food & Water Watch.

(AP)