Constellation Energy Corporation (CEG) | The Buildout — AI Infrastructure
The Verdict
Constellation owns and operates the largest U.S. nuclear fleet plus a large gas, hydro, wind, solar, and retail power platform. It sells long-term clean power, hourly carbon-free matching, and data-center land-plus-grid access. That positions it as a supplier of already-connected clean baseload while new generation and transmission take years to build.
| Market Cap | — |
| Revenue (TTM) | $29.9B |
| Revenue Growth | +23.4% |
| EBITDA Margin (TTM) | 25.8% |
| Net Debt | $21.3B |
| Earnings Beats | 5 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Signed ~920 MW of new long-term nuclear PPAs in Q2 FY2026, with 18.5-year average duration and investment-grade customers.
- Contracted roughly 30% of clean baseload output under long-term agreements, leaving the balance as contracting optionality.
- 55 GW post-Calpine fleet includes the largest U.S. nuclear platform and about 10% of the nation's clean energy.
- 2028-2029 free cash flow before growth guided to $11.5B-$13B, about 45% above the $8.4B expected for 2026-2027.
- Crane regulatory milestones landed: NRC fuel amendment approved; FERC CIR waiver granted; co-location clarity expected Q1-Q2 2027.
What We’re Watching
- Final PJM/FERC large-load and co-location rules - management says aspects of PJM's proposals still need clarification.
- ERCOT load timing - battery storage arrived before data-center load; management calls softness expected and hedged.
- Illinois ZEC program ends May 2027; Q2 bank credits were $85M versus $200M prior year.
- Shareholder supply - June 2026 secondary of 11M shares and remaining 25M-share Calpine lockup until June 30, 2027.
The thesis is strengthening on the disclosed record: contracting inflected from Q1 caution to Q2 signatures, guidance was raised, and regulatory milestones landed ahead of the prior 2029 target. The open question is whether final PJM/FERC rules and eventual counterparty disclosures confirm that the new long-dated contracts were signed at premium economics and convert into earnings on the stated timeline.
Earnings Beat
Full Q2 revenue and gross margin were not disclosed in the source material. Management reported Q2 adjusted operating EPS of $2.55, up $0.64 year over year, on Calpine accretion, higher PJM capacity prices, and commercial performance. Standout: the nuclear fleet ran at a 93% capacity factor and produced 40 TWh.
| Metric | Q1 FY2026 | Q4 FY2025 | Q1 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $11.1B | $5.5B | $6.8B | +63.8% |
| Gross margin | 42.9% | 287.5% | 12.7% | +3020bps |
| EBITDA | $3.5B | $641M | $1.1B | +222.6% |
| EPS | $4.53 | $1.38 | $0.38 | +1105.0% |
| Long-term nuclear PPAs signed in quarter | ~920 MW | n/a | n/a | — |
After a successful quarter in signing deals, we have now contracted roughly 30% of our clean baseload output under long-term agreements, and our transactional pipeline for future deals is both robust and active.— Joe Dominguez, CEO, August 6, 2026
Management tone: Management's tone shifted from Q1 caution - customers pausing for regulatory clarity - to Q2 confidence and execution, describing the deal pipeline as robust and active. Management was direct on ERCOT softness and PJM process gaps, but declined to name new counterparties or disclose pricing, citing customer control over announcements.
Management Guidance
Management raised FY2026 adjusted operating EPS guidance to $11.50-$12.50 from $11.00-$12.00. It also initiated 2028-2029 free cash flow before growth of $11.5B-$13B and updated the 2029 capital-allocation sensitivity to a floor of $0.20 per share with upside greater than $0.75 per share. Management said it would revisit the full-year outlook on the Q3 call.
Trajectory
Reported revenue rose from $6,788M in Q1 FY2025 to $11,122M in Q1 FY2026, mostly on Calpine consolidation and a swing in mark-to-market/other revenue; capacity revenue rose from $12M to $416M. Gross margin followed those items higher, and trailing revenue growth reached 23.4%. The Q2 call added a contracting step-change - ~920 MW signed - but management said those new PPAs have later start dates and are not expected to materially impact 2029 earnings, so near-term earnings still lean on Calpine accretion, PJM capacity prices, and commercial execution.
The Model
The model projects FY+1 revenue of $40,500M with EBITDA of $8,829M (21.8% margin), and FY+2 revenue of $42,500M with EBITDA of $9,520M (22.4% margin). The near term is anchored by Calpine accretion and capacity-market strength; the out-year assumes the long-dated clean-baseload contracting book becomes a larger share of revenue.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $25.5B | $38.8B | $40.2B |
| YoY Growth | — | +52.0% | +3.6% |
| EBITDA | $5.3B | $8.7B | $9.4B |
| EBITDA Margin | 20.7% | 22.3% | 23.4% |
Projections are the median of 5 independent model runs. The model’s revenue sits 16.4% above analyst consensus.
Management raised FY2026 adjusted operating EPS guidance to $11.50-$12.50 from $11.00-$12.00. It also initiated 2028-2029 free cash flow before growth of $11.5B-$13B and updated the 2029 capital-allocation sensitivity to a floor of $0.20 per share with upside greater than $0.75 per share. Management said it would revisit the full-year outlook on the Q3 call.
What Could Go Right — and Wrong
- Final FERC co-location order in Q1-Q2 2027 clears co-location at existing nuclear and gas sites, converting the uncontracted clean baseload into long-term contracts.
- PJM Reliability Backstop Procurement auction results in fall 2026 demonstrate strong demand and clearing terms for existing generation.
- Customers disclose names and pricing on the ~920 MW signed nuclear deals showing economics toward the upper end of management's $20-$50/MWh framework.
- Illinois adopts a New York-style nuclear procurement to replace ZEC revenue after May 2027.
- Crane restart completes in 2H 2027 and the Microsoft PPA begins.
- Final PJM/FERC rules impose materially higher transmission or curtailment costs on co-located or existing-generation-served load.
- Customer disclosures reveal the new nuclear contracts were signed at modest prices or with very late start dates.
- ERCOT load arrives slower than expected while battery supply keeps the market soft.
- Illinois fails to replace the expiring ZEC after May 2027, leaving an earnings hole.
- Fuel-cycle disruption, especially restrictions on Russian-sourced supply, raises fuel costs or creates operational risk.
Looking Ahead
The next 12 months run through the PJM Reliability Backstop Procurement auction in fall 2026, a PJM co-location response around November 2026, and a FERC order expected Q1-Q2 2027. Management will revisit the full-year outlook on the Q3 call, and the Freestone/CyrusOne substation is expected to energize in Q4 2026. The Crane restart remains targeted for the second half of 2027.
- Fall 2026PJM RBP auction results — Clearing terms and bilateral matches for existing generation.
- November 2026PJM co-location response — Proposed rules for co-located load; first read on FERC path.
- Q4 2026Freestone/CyrusOne substation energization — Powered Land data-center load begins to be served.
- Q1-Q2 2027FERC co-location order — Final large-load/co-location rules; resumption of paused negotiations.
- 2H 2027Crane Clean Energy Center restart — New fuel receipt, PJM deliverability, Microsoft PPA start.
- June 30, 2027Calpine lock-up expiration — Remaining 25M-share Calpine consideration lock-up expires.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $23.6B | $25.5B | $29.9B | +8.3% |
| Gross Margin | 25.3% | 85.5% | 77.9% | +6,012bps |
| EBITDA | $7.1B | $5.3B | $43.0B | -25.1% |
| EBITDA Margin | 29.9% | 20.7% | 25.8% | 923bps |
| Net Income | $3.7B | $2.3B | $3.8B | -38.1% |
| Free Cash Flow | −$5.0B | $1.3B | −$14.8B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)77.9%
- EBITDA Margin (TTM)25.8%
- Net Margin (TTM)12.7%
- ROIC7.1%
- FCF Conversion14.7%
- SBC / Revenue0.0%
The Company
Constellation operates a post-Calpine fleet of 55 GW across nuclear, natural gas, geothermal, hydro, wind, and solar. It describes itself as the largest private-sector power producer in the world and the largest nuclear energy company in the U.S., providing about 10% of the nation's clean energy. Its customer-facing products - CORe+, the Hourly Carbon-Free Energy platform, and Constellation Navigator - sell clean baseload and emissions-matching to commercial and industrial load.
Operationally, it runs nuclear plants across Illinois, Pennsylvania, Maryland, New Jersey, New York, and Texas, alongside gas peakers and intermediates. Post-merger, it reports geographic segments - Mid-Atlantic, Midwest, ERCOT, and Other Power Regions, with New York and Calpine broken out in Q1 2026 filings - and it also owns an LNG import facility in Everett, Massachusetts. Its commercial platform moves about 275 million MWh of electricity and 800 Bcf of natural gas a year across 40 states.
Business Segments
Competitive Landscape
The source material frames Constellation as the largest private-sector power producer and largest U.S. nuclear operator, competing with other power and data-center infrastructure providers for long-dated customer contracts. The provided source material does not identify specific competitors by name. Constellation's differentiation is clean-firm 24/7 baseload rather than clean electrons alone.
Supply Chain
Constellation links nuclear fuel suppliers to large power customers, including Microsoft, Meta, Walmart, and CyrusOne. Its disclosed fuel chain includes Russian-sourced contracts, and its customer side carries both clean-baseload PPAs and powered-land agreements.
More on CEG: Earnings recap