Alliant Energy Corporation · NASDAQ:LNT
Alliant Energy — Corporate Update (March 2026)
13 slides from Alliant Energy's corporate update, Mar 23, 2026
Slide 1: Morgan Valley Energy Center Public information meeting
Morgan Valley Energy Center Public information meeting March 23, 2026
Slide 2: Alliant Energy in Linn County
Alliant Energy in Linn County • Linn County is our largest load center in Iowa • Strong presence in Cedar Rapids • 600+ employees in Linn County • Other generation facilities in the area include: o Prairie Creek Generating Station o Cedar River Generating Station o Pleasant Creek Solar o Deer Run BE
Slide 3: Alliant Energy in Iowa
Alliant Energy in Iowa • We’re committed to building a secure, resilient energy future that enables growth for the communities we serve. • We invest in a balanced energy strategy that optimizes both traditional and renewable energy generation to deliver reliable, cost-effective energy solutions and
Slide 4: Evaluating need
Evaluating need • Our planning prioritizes maintaining reliable and secure energy for our customers and communities, both now and in the future. • We invest with a long-term perspective, ensuring projects are cost effective for customers. • Projects such as the Morgan Valley Energy Center must recei
Slide 5: Morgan Valley Energy Center
Morgan Valley Energy Center • Proposed for unincorporated Linn County, south of Highway 30 near Linn Benton Road • Expected to consist of three Combustion Turbine (CT) generators; each CT unit to have ~240 megawatts MW capacity • Project will use planned transmission • Developing similar facilities
Slide 6: Morgan Valley Energy Center
Morgan Valley Energy Center • We continue to balance our resource mix with the addition of CT units to provide baseload generation • CTs are: ‒ Capable of 24/7 operation ‒ Flexible and dispatchable ‒ Low consumers of water 6
Slide 7: Morgan Valley Energy Center
RW1 Morgan Valley Energy Center 7
Slide 8: Slide 7 reviewer comments
Slide 7 RW1 [@Curtis, Eric] do we have this yet? Woeste, Robyn, 2026-03-10T15:47:32.918 RW1 0 [@Curtis, Eric] do we have this yet? Woeste, Robyn, 2026-03-13T15:16:30.504 HL1 1 [@Woeste, Robyn] … this slide has been updated. Harder, Larry, 2026-03-13T21:31:23.533 AT1 2 [@Curtis, Eric] [@Harder, Larry
Slide 9: Project components
Project components • Turbine hall • Fin fan coolers/radiators • Maintenance building • Admin/control building • Exhaust stacks/bypass damper • Auxiliary/electrical building • Generation interconnection • Gas yard 8
Slide 10: Environmental review
Environmental review • We anticipate no impact to wetland, endangered species or cultural resources during facility construction or operation. • Facility design will minimize water use and wastewater discharge. • Technical experts AT3 at the Linn County Public Health Department and AT4 Iowa DNR care
Slide 11: Slide 9 reviewer comments
Slide 9 HL1 [@Woeste, Robyn] [@Maxted, Jeffrey] We have not yet firmed this up, but expect to send something out to the City to keep prodding this along on 2/27. If we don’t have this confirmed prior to having to send this out or use it for the public meeting, we may want to soften this statement in
Slide 12: Project schedule
Project schedule Permitting Construction Operation 2026-2027 2027-2030 2030 *Subject to change 10
Slide 13: Questions?
Questions? Phone: 1-800-ALLIANT Email: communityaffairs@alliantenergy.com Media: alliantenergynews@alliantenergy.com 11