Ameren vs NiSource
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.
Merrillville IN regulated utility (NYSE: NI) at $5.5B 2024 revenue; $19.4B 2025-2029 capex plan for 8-10% rate base growth with Columbia Gas/NIPSCO brands and net-zero 2040 target competing with Atmos Energy for gas utility.
About
NiSource Inc. is a Merrillville, Indiana-based fully regulated utility company — publicly traded on the New York Stock Exchange (NYSE: NI) as an S&P 500 component — serving approximately 3.3 million natural gas customers and 500,000 electric customers across six states (Indiana, Kentucky, Maryland, Ohio, Pennsylvania, and Virginia) through its Columbia Gas brands and the NIPSCO (Northern Indiana Public Service Company) electric utility. NiSource employs approximately 7,700 people and operates through nearly 60,000 miles of natural gas pipeline and distribution infrastructure. In fiscal year 2024, NiSource reported operating revenues of $5.5 billion and net income of $739.7 million ($1.62 EPS), up from $661.7 million in 2023. NiSource provided 2025 non-GAAP adjusted EPS guidance of $1.85-$1.89 and announced an increased $19.4 billion capital expenditure plan for 2025-2029 targeting 8-10% rate base growth and 6-8% EPS annual growth. NiSource is committed to a net-zero emissions target by 2040, has reduced greenhouse gas emissions by approximately 72% from 2005 levels, and is on track to retire 100% of its coal assets by 2028, replacing them with utility-scale solar and renewable energy.
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