CEG (Constellation Energy) is the only company to have actually restarted a shuttered commercial U.S. reactor. The Crane Clean Energy Center — Three Mile Island Unit 1 — went dark in 2019 and Constellation executed the NRC reinstatement process to bring it back, backstopped by a $1 billion DOE loan and a 20-year power purchase agreement with Microsoft. The executive orders are built around the model Constellation already ran. Every replication of that template requires the same kind of NRC engagement Constellation navigated first, and the company carries more mothballed-unit institutional knowledge than any other operator.
VST (Vistra) operates the most diversified nuclear fleet outside Constellation — Comanche Peak, Beaver Valley, Davis-Besse, and Perry collectively. Vistra has already signed a 20-year, 1,200 MW nuclear PPA from Comanche Peak with an undisclosed hyperscaler, with delivery commencing in 2027. Subsequent license renewals are underway across the fleet. Lower NRC barriers directly reduce the cost of those renewals and any future capacity uprates.
GEV (GE Vernova) doesn't own reactors — it services the turbine islands inside them. Steam services orders were up 30% in Q2 2025, driven specifically by nuclear life extensions and uprates. Every plant restart or license extension is a turbine-island upgrade contract. GE Vernova's nuclear services segment has 85 GW of carbon-free generation running on its technology; each GW that stays online longer or runs hotter is incremental backlog.
CCJ (Cameco) supplies uranium. A domestic restart wave and the U.S. policy push toward 400 GW by 2050 translate directly into decades of additional fuel demand. Cameco secured a $2.6 billion, 22-million-pound uranium supply deal with India in early 2026 and is ramping McArthur River toward its licensed 25-million-pound annual capacity. With only about 5% of U.S. reactor fuel currently sourced domestically, the reindustrialization order creates a structural pull for Cameco's Canadian production.
Who is exposed
SMR (NuScale Power) and OKLO (Oklo) are the advanced-reactor plays most commonly associated with the nuclear resurgence narrative — but the restart executive orders benefit operating and mothballed plants, not first-generation microreactors still in the licensing queue. NuScale canceled its flagship Carbon Free Power Project in 2023 after cost estimates ballooned. Oklo has no operating reactor and a first-mover timeline measured in years. Capital that chases the restart story will flow to operators who can deliver electrons on a 2027 timeline, not a 2032 one.
What to watch
The NRC's 18-month rulemaking clock runs through roughly late 2026. Watch for any formal petition to reinstate a previously licensed unit — that filing is the event that separates policy narrative from actual licensed capacity hitting the grid. The metric that matters for CEG is PJM capacity prices; for VST, watch the Comanche Peak PPA delivery date; for GEV, track steam services order intake quarter over quarter. Uranium spot prices are the leading indicator for CCJ. None of this is personalized investment advice; it is a map of where the policy energy lands.
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