Key Earnings Metrics

Ameren's first quarter results reflect the early returns of a multi-year capital investment program now scaling across generation, transmission, and distribution. The $0.21 year-over-year EPS increase came primarily from rate base growth rather than sales volume, which was actually dented by mild winter weather.

• Q1 2026 EPS: $1.28, up from $1.07 in Q1 2025, a $0.21 increase driven by infrastructure investments across all four operating segments.
• 2026 EPS Guidance: Reaffirmed at $5.25 to $5.45, with 6% to 8% CAGR EPS growth expected from 2026 through 2030.
• Rate Base Growth: 10.6% CAGR, among the highest in the regulated utility sector, reflecting strategic capital allocation across constructive regulatory frameworks.
• Q1 Infrastructure Investment: More than $1.5 billion deployed in the quarter to strengthen grid reliability and advance generation and battery storage projects.
• Investment Pipeline: More than $70 billion through 2035, supporting both reliability upgrades and new generation to serve large-load customers.
• Customer Base: 2.5 million electric and 900,000 natural gas customers across Missouri and Illinois.

Management Commentary

CEO Martin Lyons framed the quarter as evidence that infrastructure investments are delivering earnings growth while also producing tangible reliability benefits for customers. He pointed to severe weather events in January and April where grid automation and generation fleet performance avoided millions of outage minutes. The earnings increase was broad-based across segments rather than concentrated in one area.

Lyons devoted significant attention to data center demand, which has become the central growth narrative for Ameren. The company has signed 2.2 GW of energy service agreements and holds another 1.2 GW in construction agreements that could convert to ESAs. He expressed optimism that a portion of those remaining construction agreements would be converted in the near term, with public announcements and groundbreaking expected in Q2 2026 for the already-signed ESAs.

Beyond the signed and construction-agreement pipeline, Lyons noted that several gigawatts of additional interest in both Missouri and Illinois have matured to the engineering study stage. He also disclosed that conversations are underway with hyperscalers already under ESA about expansion beyond their current commitments, suggesting demand could exceed the company's conservative planning assumptions.

CFO Lenny Singh highlighted a headwind: warmer-than-normal winter temperatures in 2026 reduced Ameren Missouri electric retail sales compared to the colder-than-normal winter of 2025. This partially offset the infrastructure investment benefits. Singh also flagged higher tree-trimming costs in 2026, particularly in Q2, as the company continues reliability-focused spending initiated in 2025.

On financing, Singh confirmed that planned debt issuances at Ameren Missouri and Ameren Parent were completed in Q1. The company is progressing toward approximately $4 billion in equity issuances from 2026 through 2030, having sold forward roughly $600 million in May 2025 and another approximately $600 million under its at-the-market program in 2026. S&P affirmed Ameren's BBB+ credit rating with a stable outlook in April.

Strategic Implications

Ameren's generation buildout is moving from planning to execution. The 50 MW Bowling Green Energy Center entered service in March 2026, and the 300 MW Split Rail Energy Center is in final commissioning. These two projects alone can power more than 63,000 homes. Two 800 MW simple-cycle gas facilities, Castle Bluff and Big Hollow, are advancing on schedule, with Castle Bluff expected in service in 2027 and Big Hollow in 2028 alongside 400 MW of battery storage.

The company plans to file certificates of convenience and necessity by Q3 2026 for approximately 3 GW of additional generation, anchored by the 2.1 GW West Alton combined cycle facility plus more battery storage. A stipulation agreement was reached with intervenors for the 250 MW Reform Energy Center, subject to Missouri PSC approval, with expected service in 2028. In total, more than 5 GW of new generation is planned through 2030.

The data center demand pipeline adds a layer of upside not yet baked into guidance. Ameren's long-term EPS plan assumes 6.2% compounded annual sales growth from 2026 through 2030, with ESA ramp limited to 1.2 GW by 2030. If the full 2.2 GW of signed ESAs ramps faster than that assumption, sales and earnings could exceed current guidance. Lyons indicated the company will update sales forecasts as project milestones are achieved, including customer announcements, groundbreaking, and construction progress.

Transmission investment represents another growth vector. Ameren submitted bids for two competitive MISO transmission projects in Illinois in January, with selection expected by mid-2026, and is evaluating two additional competitive opportunities with May bid deadlines. The company expects significant transmission investment will be needed over time to connect new generation and serve large-load customers, with these investments incorporated into plans as opportunities mature.

On the regulatory front, Ameren Illinois filed a $65 million revenue adjustment in April under its electric distribution multiyear rate plan, with an ICC decision expected in December and rates effective January 2027. The company will also file its next Ameren Missouri electric rate review in mid-2026 to recover infrastructure investments. Ameren Illinois is engaging stakeholders on its proposed 2028-2031 electric distribution grid investment plan, with an ICC decision expected by December.

Community receptivity to data center development varies by locality. Lyons acknowledged that some communities have expressed concerns while others are receptive, noting that many areas in Ameren's service territory are already zoned appropriately for this type of development. States broadly remain supportive of the economic development associated with data centers, including job creation and tax revenue.

What to Watch Next

I would watch four things over the next two quarters:

• ESA groundbreaking announcements in Q2: Public announcements and groundbreaking for the 2.2 GW of signed ESAs would confirm project timelines and trigger updates to Ameren's sales forecast, potentially raising the baseline above the conservative 1.2 GW by 2030 assumption.
• Conversion of remaining construction agreements: Lyons expressed optimism about converting a portion of the 1.2 GW in remaining construction agreements to ESAs in the near term. Any signed conversions would expand the contracted backlog and strengthen the sales growth outlook.
• Q3 CCN filings for ~3 GW of new generation: The filing for West Alton combined cycle and additional battery storage will define the next major phase of Ameren's generation buildout and signal how much of the $70 billion pipeline is moving toward regulatory approval.
• Missouri IRP update in late September: The updated 20-year generation plan will incorporate revised sales expectations from data center demand and could reshape the generation mix and capital deployment timeline, affecting rate base trajectory beyond the current five-year plan.

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