The Great Nuclear Uprate Rush

Zach Martin

Hyperscalers are no longer waiting on the next generation of reactors. They're racing to lock down extra megawatts from reactors that are already running. Welcome to NUCLEAR CAPITAL on I R Hub Radio. I'm Zach Martin, and today it's the great uprate rush.

Emily Martin

And I'm Emily Martin. Zach, my take is that this is a structural shift. Within about a month, we saw Amazon on September 30th, Google on October 6th, and a Department of Energy loan commitment on October 27th. All of it points at the existing fleet, not at small modular reactors.

Zach Martin

Let's start with the numbers. Google and Constellation signed a 20 year power purchase agreement for 890 megawatts of new capacity from uprates at 11 reactor units in the PJM region, across Illinois, Pennsylvania, and New Jersey. The first one is targeted for 2028, and Constellation is putting in over $4.3 billion.

Emily Martin

And there's a separate piece, a 15 year supply agreement for 2,700 megawatts from the operating fleet, plus a technology alliance using Google Cloud and Gemini tools for things like outage optimization. Then Amazon at Calvert Cliffs in Maryland. That's a 20 year deal covering 690 megawatts, and 190 of those are new uprate capacity, coming online between 2030 and 2032.

Zach Martin

Notice the timing difference. Google's first uprate is 2028. Amazon's is 2030 to 2032. Even the quick wins aren't instant.

Emily Martin

True, but compare that to a new build. Those run ten to fifteen years through licensing and construction, and SMRs at commercial scale are mostly a 2030s story. An uprate uses the grid connection, the water rights, the licensed containment, the switchyard. All the hard permanent stuff already exists.

Zach Martin

I agree on speed. Where I'd push back is calling it a replacement for new nuclear. Uprates are finite. You can only squeeze so much out of a plant, like tuning an engine. You get real gains, but you don't get a second engine.

Emily Martin

I'm not saying it replaces anything. I'm saying the easy megawatts are being spoken for first. When the cheapest, fastest capacity gets claimed, later buyers face longer timelines.

Zach Martin

That's fair as a read of the market, though it's our interpretation, not something the companies have said. Now the public money. On October 27th, the DOE conditionally committed up to $5 billion to Constellation under its UPRISE program.

Emily Martin

That funds uprates across 15 reactors at eight plants in Illinois, Maryland, and Pennsylvania, adding nearly 1.1 gigawatts. That's roughly one large reactor's worth, with no greenfield site and no new transmission corridors. And the word conditional matters. It's a commitment with conditions, not money out the door.

Zach Martin

The other big question is who pays. The brief says tech buyers are paying premium contract prices above standard wholesale clearing prices to underwrite these additions, so the burden doesn't fall on residential ratepayers. I'd keep watching that, because grid politics around new data center load in PJM are far from settled.

Emily Martin

Agreed. And the DOE also issued a conditional $4.2 billion commitment to Vistra for 433 megawatts in Ohio and Pennsylvania. Meta has contracted with Vistra, and it signed a 2025 deal with Constellation for Clinton, including a 30 megawatt uprate. So it's not one buyer or one operator.

Zach Martin

Now the gap between announced and signed. Across the data center world, tens of gigawatts of nuclear capacity sit in nonbinding memorandums of understanding. The Constellation deals with Google and Amazon are different. They're signed, 20 year agreements backing billions in capital spending.

Emily Martin

That difference is everything. A headline gigawatt and a contracted megawatt are not the same asset. Still, signed doesn't mean finished. Uprates need Nuclear Regulatory Commission license amendments, and the work has to fit into refueling outages that come every 18 to 24 months.

Zach Martin

Which is the discipline lesson. Small, steady improvements compounding over years. That's what an uprate is. Not flashy, but it adds up to a whole reactor's worth of power.

Emily Martin

And it gives Constellation revenue certainty. The Amazon deal supports relicensing Calvert Cliffs for another 20 years. So the contract buys both new output and a longer life.

Zach Martin

One reminder before we go. Companies discussed today, including Constellation, Google, Amazon, Meta, Vistra, and the DOE programs, are mentioned for informational purposes only. Nothing here is investment advice or a recommendation to buy or sell anything.

Emily Martin

Thanks for listening to NUCLEAR CAPITAL on I R Hub Radio.

Zach Martin

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