Alliant Energy Corporation

Alliant Energy’s core customers are retail electric and natural gas users located within its regulated service territories in Iowa and Wisconsin, where customers generally cannot choose an alternative retail electric supplier. The retail base spans residential and small commercial accounts, plus a meaningful commercial and industrial mix with concentrations in farming/agriculture, industrial manufacturing, chemical (including ethanol), pipeline transportation, packaging, food industries and data centers. The company also sells electricity at wholesale, primarily to municipalities and rural electric cooperatives, with volumes influenced by MISO market conditions and generation dispatch. A strategic customer theme in recent disclosures is large-load growth—especially data centers—where Alliant may sign individual customer rate tariffs and service agreements that can require significant upfront generation and transmission-related investment.

Alliant Energy’s strategy centers on delivering affordable, safe and reliable service while investing in a resource plan designed to meet growing demand across Iowa and Wisconsin. A key near- to medium-term priority is enabling large-load growth (notably data centers) through service agreements and rate structures such as individual customer rate tariffs, while managing the timing and scale of required generation and transmission capacity. The company is also expanding and upgrading its generation mix with a balance of new natural gas resources, renewables and energy storage, alongside efficiency upgrades at existing plants and refurbishments at wind facilities. In parallel, it is modernizing the distribution system to improve resiliency and support evolving technologies, and partnering with commercial and industrial customers on renewable solutions tied to sustainability goals.