Ameren vs AES Corporation
Side-by-side comparison of AI visibility scores, market position, and capabilities
St. Louis MO regulated utility (NYSE: AEE) ~$8.2B revenue; 2.4M electric + 900K gas customers in MO/IL, 250MW solar project near Callaway Nuclear (2028), formula rate in Illinois competing with Evergy.
About
Ameren Corporation is a St. Louis, Missouri-based regulated electric and natural gas utility holding company — publicly traded on the New York Stock Exchange (NYSE: AEE) as an S&P 500 Utilities component — serving approximately 2.4 million electric customers and 900,000 natural gas customers in Missouri and Illinois through two primary regulated subsidiaries: AmerenMissouri (electric and gas in Missouri, including the Callaway Nuclear Power Station — Missouri's only commercial nuclear plant) and AmerenIllinois (electric and gas distribution across central and southern Illinois), through approximately 9,000 employees. In fiscal year 2024, Ameren reported revenue of approximately $8.2 billion, with continued capital investment in transmission upgrades, distribution modernization, and renewable energy additions. Ameren Missouri's clean energy transition includes the announced Reform Renewable Energy Center — a 250-megawatt solar facility near the Callaway Nuclear site, with construction beginning in 2026 and expected to power 44,000 homes by 2028, creating 300 construction jobs. CEO Martin Lyons, who succeeded Warner Baxter in 2022, has maintained Ameren's steady capital investment trajectory targeting 6-8% annual EPS growth through infrastructure modernization and renewable energy additions in both states. The company's transmission infrastructure — spanning MISO (Midcontinent Independent System Operator) in Missouri and PJM Interconnection in Illinois — positions Ameren to benefit from grid investment programs enabling renewable energy integration across the Midwest.
Arlington VA global power company (NYSE: AES) at $12.28B 2024 revenue; 32 GW portfolio (50% renewable), Meta solar agreements for AI data centers, 12 GW contracted backlog competing with NextEra for corporate clean energy PPA.
About
The AES Corporation is an Arlington, Virginia-based global power company — publicly traded on the New York Stock Exchange (NYSE: AES) as an S&P 500 Fortune 500 component — generating and distributing electric power across 15 countries to more than 2.5 million customers worldwide with a generation portfolio totaling over 32 gigawatts, of which renewable energy comprises 50% of capacity. In fiscal year 2024, AES reported revenue of $12.28 billion, completed construction of 3.0 GW of renewable energy projects, and signed 6.8 GW of new contracts, including renewable power purchase agreements for AI data center load growth. AES has earned recognition as the largest global supplier of clean energy to corporations for three consecutive years (BloombergNEF). In 2025, AES signed major solar agreements with Meta for projects in Michigan, Missouri, and Illinois powering hyperscale data centers. AES announced plans to exit coal generation completely by 2025, ahead of its previous target. AES's Fluence joint venture with Siemens is a global leader in energy storage technologies. Founded in 1981 as Applied Energy Services, AES is led by President and CEO Andrés Gluski (since 2011) and employs approximately 10,500 people worldwide.
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