Ameren Corporation (AEE) | The Buildout — AI Infrastructure
The Verdict
Ameren is a public utility holding company whose subsidiaries generate, transmit, and distribute electricity and deliver natural gas across Missouri and Illinois. For the AI buildout, it is a demand-side supplier: it provides the power and the grid interconnection that hyperscale data centers need, under contracts designed to make those large loads pay for the infrastructure they require. It is not an AI technology company, and management rarely uses the term AI. The vocabulary it uses is data centers, hyperscalers, large-load customers, and energy service agreements. It competes for that load against other utilities and other regions, and it is currently the franchised utility for its existing retail customers.
| Market Cap | — |
| Revenue (TTM) | $8.7B |
| Revenue Growth | +3.8% |
| EBITDA Margin (TTM) | 43.5% |
| Net Debt | $21.8B |
| Earnings Beats | 4 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Ameren has 2.2 GW of energy service agreements signed with large-load customers in Missouri, while its 2026-2030 base plan assumes only 1.2 GW of new load by 2030. Management frames the signed agreements as upside to the plan.
- The five-year capital plan is $31.8 billion for 2026-2030, a roughly 21% increase over the prior plan, with a pipeline of more than $70 billion through 2035.
- Management reaffirmed FY2026 EPS guidance of $5.25-$5.45 and a 6-8% long-term EPS growth target near the upper end across three separate disclosures.
- The ESA terms push cost and credit risk to the counterparty: a 12-year service commitment after ramp, a minimum demand charge of 80% of contracted capacity, termination provisions, and collateral. Developers have paid about $46 million in nonrefundable transmission-upgrade payments.
- The rate base engine is already running: Q1 2026 operating income rose 23.7% on 3.8% revenue growth.
What We’re Watching
- Ramp timing is the whole question. ESA ramp rates are confidential, and sales recognition depends on construction milestones at customer sites Ameren does not control.
- The regulatory calendar carries the earnings. The Missouri rate review was filed June 26, 2026 for rates in mid-2027, and Ameren Illinois faces ICC decisions on a $65 million reconciliation and its 2028-2031 grid plan in December 2026.
- Depreciation (up $31 million) and interest charges (up $29 million) both rose in Q1 2026 as the capital program grows. Rate cases have to be won to recover them.
- About $4 billion of equity issuance is planned for 2026-2030.
The thesis is strengthening on pipeline and unchanged on the guide. Ameren has been conservative: it holds signed large-load demand above its own plan assumption, and it has kept guidance, the growth rate, and the capital plan fixed across three disclosures while disclosing a larger early-stage pipeline. The build is executing on or ahead of schedule, with Bowling Green in service, Split Rail in commissioning, and Castle Bluff's first turbine delivered ahead of schedule. The open question is whether the September 2026 Missouri IRP moves the sales assumption toward the signed pipeline, or leaves it as permanent upside.
Earnings Beat
In Q2 2026, reported July 30, 2026, Ameren's revenue was $2,092 million on a 49.0% gross margin. Diluted EPS was $1.13 versus $1.01 a year earlier. The standout item was the reaffirmation of full-year 2026 earnings guidance at $5.25 to $5.45 per diluted share, the third consecutive confirmation of that range.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $2.1B | $2.2B | $2.2B | −5.8% |
| Gross margin | 49.0% | 49.7% | 41.8% | +720bps |
| EBITDA | $879M | $930M | $809M | +8.7% |
| EPS | $1.13 | $1.28 | $1.01 | +11.3% |
We are having conversations with hyperscalers that have already signed ESAs, specifically in Missouri, about expansion opportunities beyond what they have already signed up for.— Martin J. Lyons, Chairman, President and CEO, May 6, 2026
Management tone: The most recent earnings call on record is the Q1 2026 call of May 6, 2026; the Q2 2026 results came in a press release with no call. Across the February and May calls, management's guidance language did not shift: the same EPS range, growth rates, and capital plan, with no red flags in the structured output. On the large-load pipeline it was expansive but disciplined, pairing ambition with 'to the extent' qualifiers and calling the base plan conservative. It was direct on site control, nuclear non-participation, and wind flexibility, and deliberately non-disclosing on counterparty names and ramp rates, which it cited as confidential.
Management Guidance
Management guides FY2026 EPS of $5.25-$5.45. It targets annual EPS growth of 6% to 8% compound for 2026-2030, consistently near the upper end. The plan embeds a 6.2% Missouri sales CAGR and 1.2 GW of new load by 2030, with the signed ESAs framed as upside. Capital spending is $31.8 billion for 2026-2030 and more than $70 billion through 2035, funded in part by about $4 billion of equity issuance.
Trajectory
Trailing-quarter revenue has been volatile on seasonal and price effects rather than volume. Revenue was $2,699M in Q3 2025, $1,782M in Q4 2025, $2,176M in Q1 2026, and $2,092M in Q2 2026. In Q1 2026 revenue rose 3.8% year over year while operating income rose 23.7%, a gap driven mainly by a fall in spring MISO capacity prices from $720 per MW-day in 2025 to $70 per MW-day in 2026. The same price move cut Ameren Missouri's off-system sales and capacity revenue from $180 million to $42 million. Underlying volumes fell: total electric sales dropped to 17,052 million kWh from 17,808 million. The financial context flags revenue as decelerating, with gross margin expanding but operating and EBITDA margins compressing.
The Model
The model projects FY+1 revenue of $8,488.5 million and EBITDA of $3,790 million, a 44.65% EBITDA margin. For FY+2 it projects revenue of $9,061.5 million and EBITDA of $4,128 million, a 45.55% margin. The near-term anchor is the regulated rate base and the existing plan's 1.2 GW load assumption. FY+2 depends on whether the larger signed pipeline and the Missouri IRP re-base the plan upward.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $8.8B | $8.5B | $9.1B |
| YoY Growth | — | −3.5% | +6.8% |
| EBITDA | $3.7B | $3.8B | $4.1B |
| EBITDA Margin | 41.5% | 44.6% | 45.5% |
Projections are the median of 4 independent model runs. The model’s revenue sits 5.0% below analyst consensus.
Management guides FY2026 EPS of $5.25-$5.45. It targets annual EPS growth of 6% to 8% compound for 2026-2030, consistently near the upper end. The plan embeds a 6.2% Missouri sales CAGR and 1.2 GW of new load by 2030, with the signed ESAs framed as upside. Capital spending is $31.8 billion for 2026-2030 and more than $70 billion through 2035, funded in part by about $4 billion of equity issuance.
What Could Go Right — and Wrong
- The September 2026 Missouri IRP re-bases the sales assumption above 1.2 GW, pulling the signed ESAs into the formal plan.
- Additional ESAs are signed on the remaining 1.2 GW of Missouri construction agreements; management has said it is optimistic about 'a portion' in the very near term.
- The signed pipeline begins producing sales inside the five-year plan window, converting 'upside' language into reported revenue.
- Transmission upside is quantified. Competitive MISO projects are excluded from the plan until awarded, and a consortium led by Ameren subsidiary ATXI won two Illinois projects on May 19, 2026.
- Incremental generation capex is confirmed as additive to the plan, with costs borne by large loads under Senate Bill 4 and the tariff.
- The engineering-study pipeline ('several gigawatts in each state') does not convert, leaving growth bounded by the disclosed contracts.
- Ramps land after 2030, so the 6.2% sales CAGR reflects the 1.2 GW base rather than the signed pipeline.
- Community or zoning resistance hardens. The 2.2 GW sites are secured, but engineering-study sites are still seeking approvals.
- Rate cases resolve unfavorably or slowly, leaving depreciation and interest to outrun regulated recovery.
- Supply-chain slippage delays the combined cycle, where the West Alton labor consortium is still forming, pushing out the load-serving capability.
Looking Ahead
Over the next twelve months, Ameren's story turns on the regulatory calendar and the load pipeline. The Missouri IRP in late September 2026 is the scheduled re-basing event, where signed ESAs, potential conversions, and hyperscaler talks could move into formal plan assumptions. Roughly 3 GW of CCN filings are due by Q3 2026 for new generation. In December 2026, the ICC is expected to decide the Ameren Illinois $65 million reconciliation and the 2028-2031 grid plan, with Missouri electric rates framed for mid-2027.
- Late September 2026Missouri IRP re-basing — Where signed ESAs could move into formal plan assumptions.
- Q3 2026~3 GW of CCN filings — Filings for West Alton combined cycle plus battery storage.
- Q3 2026Q3 call: plan update — Management has said it would not rule out updating its outlook between formal resets.
- December 2026Illinois ICC decisions — Rulings on $65M reconciliation and 2028-2031 grid plan.
- Mid-2027Missouri rates effective — Timing of new rates from the June 2026 rate filing.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $7.6B | $8.8B | $8.7B | +15.4% |
| Gross Margin | 47.9% | 37.8% | 41.1% | 1,010bps |
| EBITDA | $3.2B | $3.7B | $3.8B | +14.8% |
| EBITDA Margin | 41.7% | 41.5% | 43.5% | 21bps |
| Net Income | $1.2B | $1.5B | $1.6B | +23.2% |
| Free Cash Flow | −$1.6B | −$801M | −$1.4B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)41.1%
- EBITDA Margin (TTM)43.5%
- Net Margin (TTM)17.9%
- ROIC4.8%
- FCF Conversion-36.9%
- SBC / Revenue0.3%
The Company
Ameren is a public utility holding company, formed in 1997 and headquartered in St. Louis, Missouri. Its subsidiaries are rate-regulated utilities that generate, transmit, and distribute electricity and deliver natural gas across Missouri and Illinois, serving 2.5 million electric customers and 900,000 natural gas customers. For the AI buildout, Ameren's role is to supply electricity and grid interconnection to hyperscale data centers. The marginal growth customer is now a large-load data-center developer rather than a residential or industrial ratepayer.
Ameren is a holding company whose primary assets are its equity interests in its subsidiaries, which are separate legal entities; dividends on Ameren's common stock and payment of its expenses depend on distributions from them. It reports in four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. It owns a mixed generation fleet, including the 1,194 MW Callaway nuclear plant and the 2,372 MW Labadie coal plant, plus gas, hydro, wind, and solar resources. The company plans to retire all Ameren Missouri coal-fired energy centers by 2042 and 1,800 MW of gas-fired energy centers by 2040, so part of the new-build program is replacement of retiring capacity.
Business Segments
Competitive Landscape
The source material contains no direct competitor commentary from Ameren. The competitive read is structural rather than evidenced: Ameren competes for data-center siting against other MISO utilities and other regions, and it competes for MISO competitive transmission projects against other developers. For its existing retail customers it is the franchised utility. Management has said it has won some MISO competitive transmission projects over time and is currently bidding on Illinois projects. The ESA structure, with a 12-year term after ramp, an 80% minimum demand charge, collateral, and termination provisions, is evidence that Ameren knows it is competing and is pricing the optionality accordingly.
- Evergy (EVRG)Listed in the supply-chain wiring dataset for data-center power supply and Missouri electric utility service; no company commentary.
- Alliant Energy (LNT)Listed in the supply-chain wiring dataset for MISO-territory data-center utility service; no company commentary.
- Xcel Energy (XEL)Listed in the supply-chain wiring dataset for large-load interconnection in the Midwest; no company commentary.
Supply Chain
Ameren sits on the demand side of the AI buildout: it buys generation equipment, fuel, and grid components, and sells regulated electricity and interconnection to data centers. No neighbor in the source names Ameren; all are labeled inferred ecosystem neighbors.