VST Power Generation · Nuclear · Data centers · Retail power · Thesis updated June 12, 2026

Data centers make Vistra more contractable

Vistra owns power plants and sells electricity to customers, so it can match generation with retail demand.
The bull case is stronger after 20-year nuclear power contracts with Meta and AWS.
The pending Cogentrix deal would add about 5,500 MW of modern gas generation.
Management points to about $16 of free cash flow per share by 2027 and $22 to $25 by 2030.
The main risk is execution: closing Cogentrix, finishing nuclear uprates, and signing the next contracts.

01 Running thesis

From merchant power to contracted power

Vistra used to look more like a power-price stock. When wholesale power prices rose, earnings could jump. When prices fell, earnings could shrink. That is still part of the story, but the mix is changing.

The bull case is that Vistra is turning a large fleet into long-term cash flow. It has contracted about 3.8 GW of nuclear capacity through 20-year power purchase agreements, which are long-term power supply contracts. That includes 1,200 MW at Comanche Peak with AWS and 2,609 MW of PJM nuclear power and planned uprates with Meta.

Cogentrix is the other big piece. If it closes in the second half of 2026, Vistra adds about 5,500 MW of modern gas plants. Management says the Meta contracts and Cogentrix could help adjusted free cash flow before growth reach about $16 per share by 2027, with a longer-term path to $22 to $25 by 2030.

The bear case is not that demand is weak today. It is that the stock depends on big plans going right. Vistra must close Cogentrix, integrate the assets, spend on 433 MW of PJM nuclear uprates for Meta, and sign more high-value contracts without getting slowed by PJM, ERCOT, FERC, or data center rules.

May 2026▲Q1 2026 adjusted EBITDA increased by $259 million year over year. The filing did not add new material risk factors, so the thesis improved on execution rather than new strategy.

May 2026▲Management reported record Q1 adjusted EBITDA of about $1.5 billion, deployed about $525 million into buybacks in the first four months of 2026, and reached investment-grade ratings from two agencies.

Feb 2026→The 2025 10-K confirmed full-year adjusted EBITDA of $5.838 billion and added clearer risks around Cogentrix closing, synergies, and OBBBA tax uncertainty.

Feb 2026▲Vistra announced the pending Cogentrix acquisition and 20-year Meta nuclear contracts. Management pointed to about $16 of adjusted free cash flow before growth per share by 2027 and $22 to $25 by 2030.

Nov 2025▲The Q3 2025 10-Q showed $145 million of nuclear production tax credit revenue and higher adjusted EBITDA. That gave a concrete proof point for nuclear earnings power.

Nov 2025▲Management gave 2026 adjusted EBITDA guidance of $6.8 billion to $7.6 billion and a 2027 opportunity range of $7.4 billion to $7.8 billion. Lotus had closed and the Comanche Peak PPA had been signed.

Aug 2025→Strong PJM capacity auction results supported the 2026 earnings setup, but Vistra also disclosed large incident costs tied to Moss Landing and Martin Lake. The good power-price news came with real operating costs.

Aug 2025▲Management raised the floor of its 2026 adjusted EBITDA outlook to at least $6.8 billion, helped by PJM capacity results and hedging. Commentary also pointed to progress on a Comanche Peak data center contract.

02 Business model

Power plants plus retail customers

Vistra makes money in two connected ways. The generation side owns power plants that sell electricity and capacity. Capacity is a payment for being available when the grid needs power. The retail side sells electricity to homes and businesses under brands such as TXU Energy.

This pairing matters. Retail customers give Vistra a natural place to sell power, while the plants give the retail business a supply source. It also helps hedge risk, which means reducing the damage from sudden changes in power and fuel prices.

The fleet is built around dispatchable power, meaning plants that can run when needed. That includes nuclear, natural gas, and coal. Nuclear has become more important after the Energy Harbor deal, and Vistra says it is now the largest competitive nuclear generator in the U.S.

The model breaks when prices, outages, or rules move against it. Wholesale power and natural gas prices still matter. So do nuclear outages, plant fires, collateral needs on hedges, and rules in ERCOT and PJM.

03 Product portfolio

What Vistra sells

Growth engine

Nuclear power

Nuclear is the core data center story. Vistra has contracted about 3.8 GW of nuclear capacity through long-term agreements, including deals with AWS and Meta.

Growth engine

Natural gas generation

Gas plants can run when the grid needs power. Cogentrix would add about 5,500 MW, after the Lotus deal added about 2,600 MW.

Steady

Retail electricity

Retail sells power to end customers, led by TXU Energy. Management expects Retail to contribute about $1.4 billion of adjusted EBITDA on a go-forward basis.

Cash cow

Coal and lignite plants

Coal and lignite still help serve demand and support grid reliability. They also bring fuel, environmental, and retirement risks.

Option

Solar and battery projects

Vistra owns and develops clean power assets, but some solar and battery spending has been deferred or abandoned because of supply chain and cost pressure.

Option

New gas development

Vistra is developing two West Texas gas units totaling 860 MW, expected online in 2028. These projects depend on permits, costs, and Texas market support.

04 Business segments

Where Q1 profit came from

East Generation53%growing fast

Texas Generation39%modest

Retail4%declining

West Generation4%declining

The mix uses Q1 2026 adjusted EBITDA from Retail, Texas, East, and West, excluding negative Asset Closure and Corporate items. East was the largest contributor after strong PJM capacity prices and Lotus assets.

05 Risk factors

What could break the thesis

Cogentrix closing and integration

High impact · Medium odds

Vistra expects the Cogentrix transaction to close in the second half of 2026. The deal adds about 5,500 MW of gas plants, but it still needs approvals and then integration. If costs, approvals, or synergies disappoint, the 2027 cash flow bridge gets weaker.

We watchDeal close timing, FERC approval, updated 2026 to 2027 guidance, and any disclosed synergy targets.

Nuclear uprate execution

High impact · Medium odds

The Meta contract includes 433 MW of planned nuclear uprates in PJM. Vistra expects uprate delivery to start in part by 2031 and reach full delivery by year end 2034. These projects need capital, engineering work, and regulatory approvals.

We watchCapital spending updates, NRC approvals, uprate schedules, and any delay to Meta delivery dates.

Power price and hedge exposure

High impact · Medium odds

Vistra has more contracted power than before, but it still has large exposure to wholesale power and natural gas prices. The Q1 2026 filing showed 2027 hedging was lower in some areas, such as 68% for East nuclear, renewable, and coal generation and 56% for West gas generation. Lower future power prices would pressure unhedged output.

We watchERCOT and PJM forward power prices, natural gas prices, and updated hedge percentages.

Data center rule delays

High impact · Medium odds

The stock story leans on data center demand for reliable power. But co-location and grid charge rules are still moving in places like PJM, ERCOT, and FERC. If customers wait for clearer rules, the next power purchase agreements may take longer to sign.

We watchPJM backstop procurement rules, Connect and Manage updates, FERC co-location rulings, and Texas Senate Bill 6 changes.

Plant incidents and nuclear outages

Medium impact · Medium odds

Vistra has already disclosed large costs from operational events, including a roughly $400 million Moss Landing write-off, about $110 million of remediation costs, and about $280 million of Martin Lake restoration capex. Nuclear also brings special risks, including NRC rules, refueling, spent fuel, and unscheduled outages.

We watchForced outage rates, insurance recoveries, remediation cost changes, and NRC inspection results.

Tax and credit support changes

Medium impact · Low odds

Nuclear production tax credits helped Vistra, with $545 million of revenue benefit in 2024 and $220 million in 2025. The Q1 2026 filing says OBBBA did not have a material impact on the consolidated financial statements and that Vistra does not expect CAMT in 2026. Still, future tax guidance could change cash tax timing or credit value.

We watchTreasury guidance on nuclear PTC gross receipts, cash tax guidance, and any change to CAMT expectations.

06 Quick answers

In one breath

Why is Vistra tied to AI and data centers?

AI data centers need huge amounts of reliable electricity. Vistra owns nuclear and gas plants that can supply that power, and it has already signed 20-year nuclear contracts with AWS and Meta.

Is Vistra a utility?

Vistra is not a traditional regulated utility. It is a competitive power producer and retail electricity seller, so its earnings can move with power prices, fuel prices, contracts, and market rules.

What is the Cogentrix deal?

Vistra agreed to buy Cogentrix Energy, which owns 10 modern natural gas plants totaling about 5,500 MW. The deal is expected to close in the second half of 2026 if approvals and closing conditions are met.

What should investors watch next?

The biggest items are Cogentrix closing, more long-term power contracts, Meta nuclear uprate costs, and buybacks. Vistra deployed about $525 million on share repurchases in the first four months of 2026.