Alliant Energy Corp
LNT
Utilities
2
exclusion reasons
2 themes
This page is part of our public exclusion list — a transparency tool that shows which companies we screen out and why. It is not investment advice, and it is not an accusation. But it is subject to change as our understanding of the facts evolves.
Ongoing coal ash leachate discharge (arsenic, cobalt, lithium, molybdenum) directly upstream of Ottumwa, Iowa municipal drinking water intake; Alliant proposed routing untreated discharge to Des Moines River rather than implementing EPA-required zero-discharge treatment technology
Alliant Energy operates a generation fleet that remains heavily reliant on coal-fired power plants. As of its most recent reporting, the company's Edgewater Generating Station in Sheboygan, Wisconsin, and its Lansing Generating Station in Iowa are coal-burning facilities. The company has been the subject of multiple environmental enforcement actions related to this coal infrastructure.
In March 2025, several environmental groups filed a notice of intent to sue Alliant Energy's Iowa affiliate under the Clean Water Act, alleging the company's Ottumwa Generating Station has been discharging coal ash-polluted groundwater into the Des Moines River. This follows a 2013 settlement where the company agreed to stop burning coal at its Nelson Dewey facility in Wisconsin. ViolationTracker documents a history of environmental penalties for the company. Alliant Energy has announced a goal to eliminate coal from its generation mix by 2040, but its current operations and ongoing litigation demonstrate a continued, material reliance on coal power.
Research Sources
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