Alliant Energy Corp. is a regulated investor-owned utility holding company headquartered in Madison, Wisconsin. Through its two main utility subsidiaries—Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL)—it generates, distributes and sells electricity and distributes and transports natural gas in the Midwest. The company’s earnings model is primarily driven by state-regulated retail rates and approved capital investment programs, with additional exposure to wholesale power markets through MISO. Its current operating focus includes serving growing large-load customers (notably data centers) while expanding and modernizing generation and distribution infrastructure across Iowa and Wisconsin.
42,9 %
85,7 %
18,6 %
+9,6 %
0.80
0.80
| % | |
|---|---|
| Electric utility (regulated retail) | 75% Retail electricity generation, distribution and related regulated tariffs in Iowa (IPL) and Wisconsin (WPL). |
| Gas utility (regulated retail) | 15% Natural gas distribution and transportation service to retail customers primarily in Iowa through IPL. |
| Wholesale and market-based electric sales | 7% Sales for resale and other wholesale transactions largely through MISO markets and contracts with municipalities/co-ops. |
| Other (non-utility/holding company activities) | 3% Corporate and other activities including investments and services not directly part of regulated retail utility operations. |
Alliant Energy’s core customers are retail electric and natural gas users located within its regulated service...
Households and businesses buy bundled electric service under regulated tariffs for reliability and obligated-to-serve coverage in Iowa and Wisconsin.
Residential and commercial customers purchase gas distribution/transport for space and process heating in IPL’s Iowa markets.
Large-load customers contract for high-capacity electric service and may use individual customer rate tariffs; they value speed-to-power, cost and renewable options.
Wholesale buyers procure energy/capacity from Alliant or via MISO to serve their end customers, with demand tied to market prices and system conditions.
Alliant Energy’s regulated utility footprint is concentrated in the U.S. Midwest, with IPL operating primarily in Iowa...
Alliant Energy’s strategy centers on delivering affordable, safe and reliable service while investing in a resource...
Load growth can improve scale economics but requires careful planning of capacity, rates and execution risk.
A diversified mix of gas, renewables and storage supports reliability, affordability and regulatory objectives as demand grows.
A smarter distribution system reduces outage risk and supports new technologies and changing load patterns.
Alliant Energy’s most company-specific risk is execution and concentration risk from data centers and other large-load...
Agreements may require major upfront generation/transmission investment; customers can delay, reduce load, or terminate, increasing volatility and potential under-recovery.
Returns depend on rate cases, riders and approvals (IUC/PSCW); delays or unfavorable terms can reduce or defer recovery of capital and fuel-related costs.
Physical weather changes can disrupt operations and alter peak demand; emissions policies can accelerate investment needs and change generation economics.
: 11/08/2026