Eighteen States, and Only One That MattersNarrow moat
Vistra (VST) — moat facet
Two markets plus a tail — and the two are where American electricity demand is actually growing.
Vistra sells in 18 states and the District of Columbia1 and operates in every major competitive wholesale market in the country2. That reads as diversification and mostly is not.
ERCOT manages about 83,707 megawatts of Texas peak demand for roughly 27 million customers, about 90% of the state's electric load3. It is where TXU Energy is, where Comanche Peak is, and where the largest single concentration of Vistra's generation sits. PJM, which covers all or parts of thirteen states and the District of Columbia and manages about 160,709 megawatts of peak demand for about 67 million customers4, is the second pillar and became far more important with Energy Harbor.
Everything else is small. The West segment earned $244 million of Adjusted EBITDA in 2025 against Texas at $1,834 million and East at $2,282 million5, and its external revenue fell from $833 million to $322 million6 after the Moss Landing incident took capacity out of service.
So the geographic footprint is really two markets plus a tail, and the two markets have opposite designs — ERCOT pays only for energy, PJM pays separately for capacity. Operating in both is a genuine hedge against a single market's rule changes, which is not nothing given that both markets rewrite their rules regularly.
The concentration is a strength as much as a risk. Being large in ERCOT and PJM specifically is being large in the two markets where American electricity demand is growing fastest, and where a data centre developer looking for firm power has to negotiate with whoever is already connected.
Both of the markets that matter are growing load faster than they are adding supply, which makes an installed position in ERCOT and PJM worth more each year. The West segment shrinking after Moss Landing concentrates the exposure further.
West earned $244M and Sunset lost $74M in 2025, against Texas at $1,834M and East at $2,282M. The geographic footprint is two markets plus a tail, and West's external revenue fell from $833M to $322M after Moss Landing.
Source: Vistra Corp. Form 10-K, fiscal year 2025 ↗- ReportedVistra sells in 18 states and the District of Columbia and operates in every major competitive wholesale market in the countryVistra Corp. Form 10-K, FY2025, Item 1 Business — "The Company brings its products and services to market in 18 states and the District of Columbia, including all major competitive wholesale power markets in the U.S. We serve approximately 5 million residential, commercial, and industrial retail customers with electricity and natural gas. Our generation fleet totals approximately 44,000 megawatts of generation capacity powered by a diverse portfolio, including natural gas, nuclear, coal, solar, and battery energy storage facilities"; the integrated model "enables us to structure products and contracts in a way that offers significant value compared to stand-alone retail electric providers"; five reportable segments — Retail, Texas, East, West and Sunset, plus Asset Closure; retail investors served through TXU Energy in ERCOT, Homefield Energy in MISO and Public Power in PJM, ISO-NE, NYISO and MISO — FY2025 · publ. February 2026 · source ↗
- ReportedVistra sells in 18 states and the District of Columbia and operates in every major competitive wholesale market in the countryVistra Corp. Form 10-K, FY2025, Item 1 Business — "The Company brings its products and services to market in 18 states and the District of Columbia, including all major competitive wholesale power markets in the U.S. We serve approximately 5 million residential, commercial, and industrial retail customers with electricity and natural gas. Our generation fleet totals approximately 44,000 megawatts of generation capacity powered by a diverse portfolio, including natural gas, nuclear, coal, solar, and battery energy storage facilities"; the integrated model "enables us to structure products and contracts in a way that offers significant value compared to stand-alone retail electric providers"; five reportable segments — Retail, Texas, East, West and Sunset, plus Asset Closure; retail investors served through TXU Energy in ERCOT, Homefield Energy in MISO and Public Power in PJM, ISO-NE, NYISO and MISO — FY2025 · publ. February 2026 · source ↗
- ReportedERCOT manages about 83,707 megawatts of Texas peak demand for roughly 27 million customers, about 90% of the state's electric loadVistra Corp. Form 10-K, FY2025, market discussion — "ERCOT is an ISO that manages the flow of electricity from approximately 83,707 MW of 2025 peak demand to approximately 27 million Texas customers, representing approximately 90% of the state's electric load"; "PJM is an RTO that manages the flow of electricity from approximately 160,709 MW of peak 2025 demand to approximately 67 million customers" across thirteen states and the District of Columbia; "if a less efficient natural gas unit is needed to meet demand, its offer price sets the market clearing price for all dispatched generation in that market, regardless of other units' offer prices"; prices "vary within different zones due to transmission losses and congestion"; under the PUCT-approved Emergency Pricing Program the system-wide offer cap temporarily falls to $2,000/MWh if prices have been at the cap for 12 hours in a rolling 24-hour period, and the maximum point on each ASDC is reduced to $2,000/MWh for the remainder of the calendar year once the Cost of New Entry reference price is exceeded — FY2025 · publ. February 2026 · source ↗
- ReportedPJM, which covers all or parts of thirteen states and the District of Columbia and manages about 160,709 megawatts of peak demand for about 67 million customers, is the second pillar and became far more important with Energy...Vistra Corp. Form 10-K, FY2025, growth and portfolio transformation — acquisition of Energy Harbor in 2024 "including 4,048 MW of nuclear generation facilities in PJM"; acquisition in 2025 of 2,557 MW of natural gas generation facilities in Delaware and Pennsylvania (PJM), Rhode Island (ISO-NE), New York (NYISO) and California (CAISO); plans to add 433 MW of uprate capacity from the Perry, Davis-Besse and Beaver Valley nuclear plants in PJM; announced plans "to repower the Coleto Creek and Miami Fort coal generation facilities as natural gas-fueled facilities upon their retirement no later than 2027 and the middle of 2028, respectively"; commercial operations reached at the Oak Hill solar facility in Texas totalling 200 MW; twenty-year PPAs with Meta for a total of 2,609 MW of carbon-free power and capacity from the PJM nuclear plants, with delivery commencing on a portion of operating energy and capacity in late 2026 and full delivery by year end 2027, and uprate delivery commencing in 2031 with full delivery by year end 2034 — FY2025 · publ. February 2026 · source ↗
- ReportedThe West segment earned $244 million of Adjusted EBITDA in 2025 against Texas at $1,834 million and East at $2,282 million, and its external revenue fell from $833 million to $322 million after the Moss Landing incident took...Vistra Corp. Form 10-K, FY2025, Cogentrix Transactions and Moss Landing — the acquired facilities "include three combined cycle gas turbine facilities and two combustion turbine facilities located across PJM, four combined cycle gas turbine facilities in ISO-NE, and one cogeneration facility in ERCOT. Aggregate consideration at closing will consist of approximately (i) $2.3 billion in cash, net of adjustments for the assumption of an estimated $1.5 billion of outstanding indebtedness of Cogentrix as of the closing date, and (ii) 5,000,000 shares of Vistra common stock, par value $0.01, to be issued to the seller, at a mutually agreed-upon value of $185 per share", subject to FERC approval and Hart-Scott-Rodino waiting periods, terminable if not completed by 31 December 2026 (extendable twice by up to 90 days), with termination fees of $77,839,364 on the purchase agreement and $72,160,636 on the merger agreement; "On January 16, 2025, we detected a fire at our Moss Landing 300 MW energy storage facility at the Moss Landing Power Plant site (the Moss Landing Incident) that resulted in ceasing operations at all facilities at the Moss Landing complex until the fire was contained. No injuries occurred" — FY2025 · publ. February 2026 · source ↗
- ReportedThe West segment earned $244 million of Adjusted EBITDA in 2025 against Texas at $1,834 million and East at $2,282 million, and its external revenue fell from $833 million to $322 million after the Moss Landing incident took...Vistra Corp. Form 10-K, FY2025, Cogentrix Transactions and Moss Landing — the acquired facilities "include three combined cycle gas turbine facilities and two combustion turbine facilities located across PJM, four combined cycle gas turbine facilities in ISO-NE, and one cogeneration facility in ERCOT. Aggregate consideration at closing will consist of approximately (i) $2.3 billion in cash, net of adjustments for the assumption of an estimated $1.5 billion of outstanding indebtedness of Cogentrix as of the closing date, and (ii) 5,000,000 shares of Vistra common stock, par value $0.01, to be issued to the seller, at a mutually agreed-upon value of $185 per share", subject to FERC approval and Hart-Scott-Rodino waiting periods, terminable if not completed by 31 December 2026 (extendable twice by up to 90 days), with termination fees of $77,839,364 on the purchase agreement and $72,160,636 on the merger agreement; "On January 16, 2025, we detected a fire at our Moss Landing 300 MW energy storage facility at the Moss Landing Power Plant site (the Moss Landing Incident) that resulted in ceasing operations at all facilities at the Moss Landing complex until the fire was contained. No injuries occurred" — FY2025 · publ. February 2026 · source ↗