Vistra has roughly 3,800 megawatts of nuclear generation covered by 20-year power agreements with Amazon Web Services and Meta. Those contracts, together with a pending $4.7 billion gas-generation acquisition, have given investors a different way to value a company historically exposed to wholesale electricity prices.None of these transactions was announced this week. The Amazon agreement dates to September 2025, the Meta agreements were signed in January 2026, and Vistra agreed to acquire Cogentrix that same month. A rise in search interest on 7 September does not establish a new corporate catalyst, and Vistra did not publish a corresponding announcement.
What Is Actually Under Contract, and for How Long
The largest agreements cover 3,809 megawatts at full delivery. Vistra agreed to supply Amazon Web Services with as much as 1,200 megawatts from the Comanche Peak nuclear plant in Texas, while its Meta agreements cover 2,609 megawatts from plants in Ohio and Pennsylvania.
| Customer | Contracted Capacity | Term | Delivery Schedule |
|---|
| Amazon Web Services | Up to 1,200 MW | 20 years | Begins in late 2027 and reaches full capacity by 2032 |
| Meta | 2,609 MW | 20 years | Begins in late 2026 and reaches full capacity by 2034 |
The Meta total comprises 2,176 megawatts of operating generation from Perry and Davis-Besse, plus 433 megawatts of planned output increases at Perry, Davis-Besse and Beaver Valley. More than 15% of the Meta capacity therefore depends on upgrades that have yet to be completed.The electricity will continue to enter the regional grid rather than travel over a dedicated line to Meta facilities. The agreements provide the commercial support for Meta’s consumption and Vistra’s plant investments, but they do not remove the plants from PJM’s power system.Vistra shares gained sharply when the Meta agreements were announced on 9 January. Contemporary reports placed the intraday increase near 15%, while the regular-session close was reported closer to 10.5%. That move belongs to the January announcement and should not be presented as a reaction from this week.
The Cogentrix Acquisition Adds Dispatchable Gas
Vistra has agreed to acquire Cogentrix Energy for an enterprise value of approximately $4.7 billion. The transaction has not closed, with Vistra’s August results still describing it as pending and forecasting completion in late 2026.The portfolio contains ten gas-fired facilities with approximately 5,500 megawatts of capacity. Five plants are in PJM, four are in ISO New England and one is in Texas’s ERCOT market, so the capacity is not confined to PJM and New England.Vistra described the net purchase price as approximately $4 billion after accounting for expected tax benefits. The consideration includes about $2.3 billion in cash, $900 million in Vistra shares and the assumption of approximately $1.5 billion of Cogentrix debt, less around $700 million attributed to the present value of tax benefits.Gas generation matters because it can respond when power demand rises or renewable output falls. PJM’s capacity market has also become more valuable to generators. The region’s 2028 to 2029 capacity auction cleared at the $325 per megawatt-day price cap, showing how tight the market remains.
Contracted Cash Flow Changes the Earnings Model
A merchant generator earns more when wholesale power and capacity prices rise, but it also absorbs the downside when prices fall. A 20-year power agreement replaces part of that exposure with revenue tied to a named customer and a defined term.That does not turn Vistra into a fully contracted utility. Its gas, coal and uncontracted nuclear output remains exposed to wholesale markets, fuel prices, outages and changing capacity-market rules. Its retail electricity business also remains sensitive to customer volumes, weather and procurement costs.Vistra uses hedges to reduce shorter-term exposure. As of 3 August, the company had hedged approximately 100% of expected 2026 generation, 94% for 2027 and 72% for 2028. Those positions provide near-term protection, while the Amazon and Meta agreements extend revenue visibility much further.Management estimates that retail and contracted sources could generate nearly half of EBITDA after the nuclear agreements begin contributing. That is the core of the re-rating argument: more of the earnings base may become predictable and less dependent on the power price prevailing in a particular quarter.There is also a meaningful timing caveat. Vistra’s current 2026 adjusted EBITDA guidance of $6.8 billion to $7.6 billion excludes benefits from the pending Cogentrix acquisition and the signed nuclear agreements. Only part of the PPA contribution is expected to enter results during 2027.
The Demand Forecast Underwriting the Strategy
The investment case depends heavily on data-centre demand developing close to current forecasts. Goldman Sachs Research forecasts US data-centre power demand rising from 31 gigawatts in 2025 to 66 gigawatts in 2027, with data centres accounting for 8.5% of summer peak demand.Goldman also warns that only around half to 60% of the capacity scheduled for the next two years may enter service on time. Permitting delays, equipment shortages, grid-connection queues and developers submitting requests in multiple regions can all inflate demand projections.PJM’s independent market monitor nevertheless found that existing and forecast data-centre load materially increased recent capacity-market costs. The monitor calculated that data-centre demand added approximately $6.5 billion to revenues in the 2027 to 2028 capacity auction compared with a scenario excluding that load.
What the Contracts Do Not Cover
The headline figure of roughly four gigawatts describes full delivery, not capacity already supplying both customers today. Amazon’s volume ramps through 2032, while Meta’s total includes uprates scheduled through 2034. Construction, regulatory and operational execution therefore remain part of the investment case.Vistra has not disclosed the PPA prices. Investors can assess the length, capacity and expected cash-flow contribution, but they cannot independently calculate the contracts’ revenue or margins from the public terms.The agreements also do not cover the entire generating fleet or remove nuclear operating risk. Refuelling outages, maintenance spending, licence extensions and the execution of the planned uprates remain Vistra’s responsibility.The closest listed comparison is Constellation Energy, whose own hyperscaler agreements have shifted attention from near-term merchant prices to long-duration contracted earnings. FinanceFeeds examined that valuation debate in its Constellation Energy bull and bear case.Vistra’s change is real but incomplete. It has secured long-duration customers for a large part of its nuclear portfolio and agreed to add 5.5 gigawatts of gas, yet much of the associated earnings uplift lies ahead and the Cogentrix transaction remains subject to closing.
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