Indianapolis Power & Light Company (IPALCO), doing business as AES Indiana, operates as a regulated electric utility providing generation, transmission, distribution, and retail sales of electricity; serves more than 500,000 residential, commercial, and industrial customers across a 528-square-mile service territory centered in Indianapolis and surrounding central Indiana communities; owns and operates key generating assets including the coal-fired Eagle Valley Generating Station (341 MW), Harding Street Station (1,196 MW), and Petersburg Generating Station (1,760 MW), the Georgetown Gas Turbine Power Plant (158 MW peaking capacity), and the Hoosier Wind Farm (106 MW); generates approximately 3,500 MW of nameplate capacity overall, supplemented by renewable integrations such as solar projects and battery energy storage systems.
A subsidiary of IPALCO Enterprises, Inc., and the largest utility under parent company AES Corporation since its acquisition in 2001, the company was founded in 1926 through the merger of Indianapolis Light and Heat Company and Merchants Heat and Light Company, both originating in the 1880s; maintains headquarters at One Monument Circle in downtown Indianapolis, Indiana.
In recent developments, AES Indiana rebranded from Indianapolis Power & Light Company to AES Indiana in February 2021 to align with its parent AES Corporation; completed the 200 MW Pike County Battery Energy Storage System in April 2025 as part of $1.1 billion in Pike County investments from 2024-2026, including solar repowering at Petersburg Energy Center; secured Indiana Utility Regulatory Commission approval in August 2024 to acquire the 170 MW Crossvine solar-plus-storage project (85 MW solar and 85 MW/4-hour battery) from Lightsource bp, slated for mid-2027 operation; integrates these with existing renewables like Hardy Hills Solar and Hoosier Wind to support grid flexibility and decarbonization; received new base rates and a 9.9% return on equity approval in 2024, followed by a 2025 rate case settlement in October 2025 proposing a $1.999 billion revenue requirement and 9.75% ROE, reducing an initial $192.9 million increase request; partners long-term with CDPQ for capital support in modernization efforts.