| Entity | Constellation Energy (Constellation Energy Corporation, Nasdaq: CEG) |
|---|---|
| Counterparty | |
| Date | 6 Oct 2026 |
| Status | Announced |
| Instrument | 20-year power purchase agreement |
| Region | U.S. & Allies |
Google and Constellation Energy announced on Oct. 6, 2026, a 20-year power purchase agreement that funds equipment and technology investments at 11 Constellation-owned nuclear units in Illinois, Pennsylvania, and New Jersey, adding 890 MW of new capacity to the PJM Interconnection grid.
The release states the capacity is entirely new and that the first uprate is expected by 2028. Constellation’s commitment is more than $4.3 billion of new investment; a separate 15-year supply agreement covers an additional 2,700 MW of existing PJM fleet output, and an expanded five-year alliance puts Google Cloud and Gemini Enterprise into Constellation operations.
Who this affects
- For exporters: Not specified in the record. The release places the 890 MW on the PJM grid from units in Illinois, Pennsylvania, and New Jersey.
- For investors: Constellation (Nasdaq: CEG) commits more than $4.3 billion of new investment, backed by a 20-year PPA for the 890 MW of uprates and a 15-year agreement covering 2,700 MW of existing PJM generation.
- For counsel/compliance: The commercial package pairs the PPA with demand flexibility and demand-response curtailment of non-critical load in high-stress grid events, and a five-year technology agreement covering operational technology networks the release describes as air-gapped and connected to the bulk electric system.
- For policymakers: The release frames the deal as a response to PJM’s “Bring Your Own Power” proposal, without state or federal mandates, as aligned with the White House Ratepayer Protection Pledge, and as advancing the goals of the federal UPRISE program.
The read
The structure splits new supply from fleet retention. The 890 MW is incremental output from efficiency work at operating units — turbines, steam generators, and digital controls — across six sites and 11 units, not a named greenfield plant. The 2,700 MW, 15-year agreement is written to keep existing assets delivering energy and capacity into PJM.
The same release page records a separate Sept. 30, 2026, Constellation–Amazon 20-year PPA adding 190 MW at Calvert Cliffs, so this Oct. 6 instrument sits in a short sequence of hyperscaler nuclear offtake rather than as a one-off. A strategic framework to evaluate further clean generation, storage, and demand response, with near-term priority in PJM, is agreed but not contracted.
What was the action?
Google and Constellation announced a long-term clean energy collaboration whose core instrument is a 20-year power purchase agreement enabling uprates at 11 Constellation-owned nuclear units in Illinois, Pennsylvania, and New Jersey. They also entered a 15-year energy supply agreement for 2,700 MW in PJM’s fleet, expanded a five-year Google Cloud and Gemini Enterprise technology alliance, and agreed a framework to evaluate new clean generation, storage, and demand response, prioritized near-term in PJM.
What’s the penalty / scope, and how is it set?
No penalty is stated. Scope is 890 MW of new carbon-free capacity from thermal and electrical efficiency gains, described as equal to the output of several small modular reactors or a large new conventional reactor, with the first uprate expected by 2028.
Constellation’s investment is more than $4.3 billion. The release says the agreement helps sustain roughly 4,400 existing jobs and creates approximately 7,200 construction jobs during the building period. Amanda Peterson Corio, global head of energy and power at Google, said the agreement will fund reactor uprates on the PJM grid, which serves 67 million people.
Who else is exposed?
Named parties are Google and Constellation. Host geography is six nuclear sites in Illinois, Pennsylvania, and New Jersey. PJM is the receiving grid. The release does not name the 11 units. Communities served by Constellation are the stated beneficiaries of the AI work on cost, performance, and grid security. Other offtakers are not specified in this instrument.
What happens next
The release sets the first uprate as expected by 2028. The five-year technology alliance is the operating timeline for Gemini Enterprise workflows on site selection, interconnection planning, outage management, and OT security. Further generation, storage, and demand-response projects remain inside an evaluation framework, with near-term priority in PJM; no additional project, filing, or commercial close is stated.
"The 20-year power purchase agreement will enable investments in new equipment and technology at 11 Constellation-owned nuclear units in Illinois, Pennsylvania, and New Jersey."

