Vistra Corp -- How the Business Works
Vertically integrated power: generate → wholesale (capacity + energy) → retail (TXU);
4 local oligopolies monetized via 2 mega-PPAs. VST owns ~41 GW of generation today
(~46 GW post-Cogentrix close in summer 2026) spanning nuclear (~6.4 GW, #2 US merchant),
natural gas CCGT/peakers (~30 GW combined post-Cogentrix), coal on glide-path retirement,
and a growing Vistra Zero solar + storage portfolio. The company sells the output three ways:
capacity payments into PJM, ISO-NE, NYISO and CAISO; merchant energy across all five RTOs;
and -- uniquely -- direct retail through TXU Energy, the #1 competitive electricity provider
in Texas with ~5M customer accounts and ~25-30% ERCOT share. Layered on top: two of the
largest corporate power deals in US history -- Amazon Comanche Peak 1.2 GW 20-year PPA
(signed September 2025) and Meta 2,609 MW PJM nuclear PPA across Perry, Davis-Besse and
Beaver Valley uprates (signed January 2026). Stock trades $146.87 (down ~33% from $219 peak)
with composite score 8.00/10 -- BUY.
FY2025 Adj. EBITDA
$5.91B
Gen $4.29B + Retail $1.62B record
Price / Composite Score
$147 / 8.0
BUY -- 3/3 quality gates pass
Generation Capacity
~41 GW
~46 GW post-Cogentrix; 6.4 GW nuclear
Contracted Hyperscaler MW
~3.8 GW
Amazon 1.2 GW + Meta 2.6 GW nuclear
Revenue stream map -- generate, wholesale, retail; two segments, four monetization lines
Vistra Business Model -- Generation Assets → Two Segments → Four Revenue Lines
Step 1 -- Generation Asset Stack (~41 GW today; ~46 GW post-Cogentrix close summer 2026)
Nuclear (~6.4 GW)
Comanche Peak 2.4 GW (ERCOT)
Vistra Vision PJM nuclear ~4 GW:
· Beaver Valley 1.8 GW (PA)
· Perry 1.3 GW (OH)
· Davis-Besse 894 MW (OH)
#2 US merchant nuclear
Gas CCGT + Peakers (~30 GW)
ERCOT ~13 GW + PJM ~7 GW
+ Cogentrix pending 5.5 GW (H2 2026)
+ Lotus 2.6 GW (closed Oct 2025)
+ MISO/NE/NY/CAISO ~5 GW
+ Permian 860 MW (2028 build)
~60% utilization -> mid-80s op leverage
Coal (~8 GW)
TX 3.5 GW + Midwest 4.5 GW
Martin Lake, Oak Grove (ERCOT)
Miami Fort, Baldwin, Newton,
Kincaid (PJM/MISO)
Miami Fort coal-to-gas conversion
MATS retirement pushed out
Vistra Zero (~1.2 GW)
Solar + BESS
Oak Hill (Amazon PPA)
Pulaski (Microsoft PPA)
Newton, others
ERCOT / PJM / MISO
Contracted PPAs
↓
Step 2 -- Two Operating Segments
Vistra Vision
Zero-Carbon Generation + TXU Retail
Houses all ~6.4 GW nuclear, Vistra Zero renewables, AND TXU Energy retail.
The stable / contracted side of the business -- target ~50% of EBITDA shifting here.
Holds Amazon Comanche Peak PPA, Meta PJM nuclear PPA, and the TXU retail brand
serving ~5M ERCOT customers.
Vistra Tradition
Merchant Gas + Coal Across 5 RTOs
~30 GW gas CCGT/peakers (post-Cogentrix) + ~8 GW coal across ERCOT, PJM, ISO-NE,
NYISO, CAISO. Dispatchable energy + capacity revenue. ~60% utilization today with
operating leverage to mid-80s as load grows. Capacity-payment heavy in PJM
(2026/27 BRA cleared ~$329/MW-day near cap).
↓
Step 3 -- Four Revenue Monetization Lines
Retail Margin
TXU Energy ~5M customers
Record $1.62B EBITDA FY2025
Vertically hedged in ERCOT
Capacity Payments
PJM BRA ~$329/MW-day
ISO-NE, NYISO, CAISO
ERCOT energy-only (no cap mkt)
Merchant Energy
Dispatch into all 5 RTOs
Op leverage to load growth
Coal optionality on dispatch
Hyperscaler PPAs
Amazon Comanche Peak 1.2 GW
Meta PJM 2.6 GW nuclear
Microsoft Pulaski solar
Asset map and capacity from VST Q4 2025 and Q1 2026 earnings call transcripts and VST investor presentations. Hyperscaler PPA details from Vistra IR press releases (Sept 2025 Amazon; Jan 2026 Meta).
How VST makes money -- two segments, two mega-PPAs, one capital allocation flywheel
Vistra Vision = zero-carbon generation + TXU Energy retail.
The retail leg is the crown jewel of competitive Texas electricity. TXU Energy serves
roughly 5 million residential customer accounts -- the largest competitive provider in
ERCOT with approximately 25-30% market share, sitting inside an effective duopoly with
NRG/Reliant + Direct Energy. Retail delivered a record $1.62B EBITDA in FY2025,
well above the company's medium-term target of ~$1.4B. The generation side of Vistra
Vision houses all ~6.4 GW of nuclear (Comanche Peak in ERCOT plus Beaver Valley, Perry,
and Davis-Besse in PJM) and the ~1.2 GW Vistra Zero solar + battery portfolio. This
segment is the destination for all hyperscaler PPA revenue and the engine of the
company's transition toward stable, contracted cash flows -- VST has guided to roughly
50% of EBITDA shifting to this more contracted profile over time.
Vistra Tradition = merchant gas + coal across five RTOs.
~30 GW of dispatchable gas CCGT and peakers (post-Cogentrix close in summer 2026) plus
~8 GW of coal on retirement glide-path generate two revenue streams: capacity payments
(PJM, ISO-NE, NYISO, CAISO) and merchant energy margin. PJM is the big swing -- the
2026/27 Base Residual Auction cleared at roughly $329/MW-day, near the price cap, which
flows directly to VST's PJM gas and coal fleet. The CCGT fleet runs at only ~60%
utilization today; CEO Jim Burke has guided that this can climb to the mid-80s as
load grows -- pure operating leverage on existing assets with zero incremental capex.
New gas build cost has more than doubled in the last 5 years, reinforcing the value
of the existing fleet.
Two mega-PPAs anchor the contracted-revenue ramp.
(1) Amazon Comanche Peak: 1,200 MW 20-year co-located PPA signed
September 2025, initial energization Q4 2027 with full ramp by 2032. This monetizes
the only merchant-contractable nuclear plant in ERCOT -- a single-asset local monopoly
for Texas hyperscaler nuclear. (2) Meta PJM nuclear: 2,609 MW 20-year
PPA signed January 2026 across Perry, Davis-Besse, and Beaver Valley (2,176 MW
operating + 433 MW uprates), with initial deliveries December 2026 and full 2,609 MW
online by 2034. This is the largest corporate nuclear PPA in US history
and validates VST's PJM nuclear footprint as a hyperscaler-grade asset.
Capital allocation flywheel: contract → acquire → hedge → repurchase.
Management has executed roughly $6B of share buybacks at an average price of ~$36
since the 2022 program inception -- one of the most effective capital returns in the
sector. The same playbook continues: contract long-dated PPAs (Amazon, Meta), acquire
accretive assets (Energy Harbor 2024, Lotus October 2025, Cogentrix pending summer 2026),
hedge near-term merchant exposure, and return excess cash via buybacks. Per CFO
Moldovan on the Q4 2025 call, full execution of the nuclear PPAs plus Cogentrix plus
deployment of all unallocated cash through 2030 implies adj. FCF/share of $22-25
vs. a 2026 starting point of $12.50.
Segment commentary and FCF/share roadmap from VST Q4 2025 and Q1 2026 earnings call transcripts. Capital allocation history from VST investor presentations.
The four local oligopolies -- where VST sits in each
Four Separate Local Oligopolies -- All Pass the Oligopoly Hard-Gate
| Market |
VST Position |
Structure |
Why It Matters |
| ERCOT merchant nuclear |
MONOPOLY (1 of 1) |
Comanche Peak is the only merchant-contractable nuclear plant in ERCOT (STP is rate-based / IOU-owned) |
Single asset = only game in town for Texas hyperscaler nuclear PPAs. Amazon 1.2 GW PPA monetizes this. |
| ERCOT thermal generation |
#1 of ~4 |
VST (~16-17 GW), Calpine (~10 GW), NRG (~9 GW), LCRA/utility. 4-player thermal oligopoly. |
Dispatch and capacity into the highest-growth power market in the US. ERCOT peak 85 -> 139 GW by 2030. |
| ERCOT competitive retail |
#1 (~25-30%) |
Effective duopoly: TXU (VST) ~25-30% vs. NRG/Reliant + Direct Energy ~20-25%. Long tail of small REPs. |
~5M customer accounts, record $1.62B retail EBITDA FY2025. TXU brand, switching costs, vertical hedge. |
| US merchant nuclear (national) |
#2 (~6.4 GW) |
CEG ~22 GW, VST ~6.4 GW, PSEG ~3.8 GW, NextEra ~2.3 GW, TLN ~2.2 GW, Dominion ~2.0 GW. 6-player oligopoly. |
~4 GW PJM-deliverable nuclear monetized via Meta 2.6 GW PPA -- largest corp nuclear PPA in US history. |
No other US merchant power company stacks four local oligopolies of this caliber.
TLN has a single great asset (Susquehanna). CEG has scale but no retail. NRG has retail
without the nuclear monopoly. VST is the only operator that simultaneously dominates ERCOT
nuclear (monopoly), ERCOT thermal (top of 4), ERCOT retail (top of effective duopoly),
and US merchant nuclear (#2 of 6) -- and is monetizing all four simultaneously via two
20-year hyperscaler PPAs totaling ~3.8 GW.
Market share and structure from VST Q4 2025 / Q1 2026 calls, ERCOT 2025 LTLF3 data, and industry research. See Thematics page for full source list.
Why scale matters -- TXU brand, retail switching costs, 5-RTO diversification
TXU Brand Value
TXU Energy is the most-recognized residential electricity brand in Texas, ranking
#1 in customer count and consistently top of NPS surveys among competitive
providers. Brand premium translates to lower acquisition cost per customer and
better retention vs. the long tail of small REPs. Acquired through Energy Future
Holdings post-bankruptcy in 2016, TXU is now the keystone of Vistra Vision's
retail leg and generated record $1.62B EBITDA in FY2025.
Retail Switching Costs
Despite ERCOT being a fully deregulated competitive retail market, residential
customers exhibit meaningful inertia -- annual switching rates are well below
what perfect-information theory would predict. TXU's scale advantage means lower
customer acquisition cost amortized over a longer effective lifetime. The
vertical hedge -- selling power from VST's own ERCOT generation to TXU's own
retail book -- captures margin that pure-play retailers cannot replicate.
5-RTO Fleet Diversification
Generation spans ERCOT (largest), PJM (much larger post-Energy Harbor +
Cogentrix), ISO-NE, NYISO, and CAISO. Diversification smooths weather,
congestion, and capacity-market volatility. Critics will note this dilutes the
"pure monopoly" framing (vs. a focused name like TLN) -- but the same
diversification means VST has multiple shots on goal for additional hyperscaler
PPAs, gas peaker repowering opportunities, and capacity-market upside across
multiple regulatory regimes.
Brand and scale commentary from VST investor presentations and management remarks across FY2025 / Q1 2026 earnings calls.
What is changing -- Cogentrix close, IG ratings, the next hyperscaler PPA
Near-term (summer 2026)
Cogentrix close
~5.5 GW of gas CCGT across 10 plants, primarily in PJM and adjacent markets.
Acquisition at ~$730/kW net of tax benefits (well below new-build replacement
cost of $1,500+/kW). Adds an estimated ~$500M EBITDA run-rate
immediately on close, with upside from PJM capacity tightening. Step-up to
~46 GW total VST fleet.
Capital structure
Investment grade achieved
VST has crossed the threshold to investment-grade credit ratings
from major agencies -- a multi-year deleveraging arc paying off. Lowers cost of
capital, expands the buyer base for VST debt, and supports continued aggressive
share repurchase (~$6B done at avg ~$36) without stressing the balance sheet.
Also opens the door to longer-tenor PPA hedging structures with hyperscalers.
Next catalyst
~3.2 GW uncontracted nuclear
Beaver Valley (~1.8 GW) remains uncontracted and is the obvious next monetization
target. CRO Stacey Dore: "we continue to see a very high level of interest in
Beaver Valley." Combined with Comanche Peak ERCOT incremental capacity, there is
roughly ~3.2 GW of nuclear still uncontracted that could
anchor another mega-PPA -- a third hyperscaler deal would meaningfully extend
the contracted-revenue ramp.
The story is shifting from "merchant power company" to "contracted infrastructure with merchant upside."
Cogentrix closes summer 2026. IG ratings unlock cheaper capital. The next hyperscaler PPA
(Beaver Valley or incremental Comanche Peak) is the next visible catalyst. Per CFO
Moldovan, full execution of all the above implies adj. FCF/share could reach $22-25 vs.
a 2026 starting point of $12.50 -- which is what underpins the BUY thesis at $146.87 with
a composite score of 8.00/10.
Cogentrix, IG ratings, and PPA pipeline commentary from VST Q4 2025 and Q1 2026 earnings call transcripts. FCF/share roadmap from CFO Kris Moldovan, Q4 2025 call.