Three Mile Island in Middletown, Pennsylvania. Photo: Jeff Fusco/Getty Images

Three Mile Island nuclear power plant will begin a planned shutdown on June 1 now that owner Exelon confirmed it won't receive financial aid from Pennsylvania's government, AP reports.

The impact: Nuclear provides 94% of Pennsylvania's carbon-free electricity. Coal and natural gas plants — which burn fuel cheaper, but emit carbon dioxide — are expected to make up for the lost power. As for jobs, the plant employs nearly 700 people.

The intrigue: Three Mile Island was the site of America's worst nuclear-energy accident in 1979. One reactor shut down following that, which has created extra financial hurdles for the plant since.

The big picture: Nuclear power plants aren’t compensated for their carbon-free profiles like wind and solar, so plants across the country are being financially squeezed in similar situations. One-third of America’s nuclear power could be taken offline in the next few years, while as much as two-thirds could be unprofitable in the same amount of time, according to MIT research.

What's next: The plant will be offline by Sept. 30, according to Exelon.

Go deeper: As climate change worsens, America faces more nuclear closures ("Axios on HBO" segment)

Go deeper

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 p.m. ET: 32,471,119 — Total deaths: 987,593 — Total recoveries: 22,374,557Map.
  2. U.S.: Total confirmed cases as of 10 p.m. ET: 7,032,524 — Total deaths: 203,657 — Total recoveries: 2,727,335 — Total tests: 99,483,712Map.
  3. States: "We’re not closing anything going forward": Florida fully lifts COVID restaurant restrictions — Virginia Gov. Ralph Northam tests positive for coronavirus.
  4. Health: Young people accounted for 20% of cases this summer.
  5. Business: Coronavirus has made airports happier places The expiration of Pandemic Unemployment Assistance looms.
  6. Education: Where bringing students back to school is most risky.
Mike Allen, author of AM
5 hours ago - Politics & Policy

Biden pushes unity message in new TV wave

A fresh Joe Biden ad, "New Start," signals an effort by his campaign to make unity a central theme, underscoring a new passage in his stump speech that says he won't be a president just for Democrats but for all Americans.

What he's saying: The ad — which began Friday night, and is a follow-up to "Fresh Start" — draws from a Biden speech earlier in the week in Manitowoc, Wisconsin:

Trump prepares to announce Amy Coney Barrett as Supreme Court replacement

Judge Amy Coney Barrett. Photo: Matt Cashore/Notre Dame University via Reuters

President Trump is preparing to nominate federal appeals court Judge Amy Coney Barrett of Indiana, a favorite of both the social conservative base and Republican elected officials, to succeed Justice Ruth Bader Ginsburg, Republican sources tell Axios.

Why it matters: Barrett would push the already conservative court further and harder to the right, for decades to come, on the most important issues in American politics — from abortion to the limits of presidential power. If confirmed, she would give conservatives a 6-3 majority on the high court.