Supervisors unanimously rejected a rezoning request for the proposed 720-megawatt Morgan Valley Energy Center west of Cedar Rapids, citing concerns about water, infrastructure and community impacts. State regulators could still allow the project to proceed.
By Hola America News
LINN COUNTY, Iowa — The Linn County Board of Supervisors voted 3–0 to reject Alliant Energy’s rezoning request for a proposed natural gas power plant in western Linn County, dealing a major setback to the Morgan Valley Energy Center project.
The decision came during the board’s Tuesday, Oct. 20, meeting and was announced by the county on Oct. 21. Supervisors rejected a request to rezone 149.55 acres of agricultural land near U.S. Highway 30 and Linn-Benton Road, west of Cedar Rapids.
The proposed plant has not been permanently canceled. The Iowa Utilities Commission can still authorize the facility through a separate state review process scheduled to begin Dec. 7, 2026.
According to Linn County’s official announcement, the decision reflected concerns about whether the project met local development standards, including requirements involving water and wastewater infrastructure, public safety, environmental quality and compatibility with surrounding land uses.
Where would Alliant Energy build the Morgan Valley gas plant?
Alliant Energy, through its Iowa subsidiary Interstate Power and Light Company, proposes building a 720-megawatt natural gas generating facility on the southeast corner of Linn-Benton Road and U.S. Highway 30, near the Benton County line.
The plans call for three natural gas combustion turbines with approximately 240 megawatts of generating capacity each. The actual generating facility would occupy about 55 acres within the larger property.
The land is currently zoned Agricultural (AG). Alliant requested a change to the Exclusive Use-Two (EU-2) zoning district, which Linn County requires for natural gas electric generating facilities.
According to Alliant Energy’s project information, the facility would provide electricity during periods of increased demand and complement existing wind and solar generation.
The company had anticipated beginning construction in 2027 and starting commercial operations around 2030, contingent on obtaining the necessary approvals.
Why did Linn County supervisors reject the rezoning?
Supervisors Kirsten Running-Marquardt, Sami Scheetz and Brandy Z. Meisheid unanimously opposed the application after reviewing the proposed location, infrastructure arrangements and potential effects on nearby residents.
One of the central concerns involved whether adequate public facilities would be available to supply water and manage wastewater from the plant.
In his explanation of the vote, Scheetz said the application had not sufficiently demonstrated that the necessary water and wastewater services were in place for the proposed location.
Alliant had proposed using trucks to transport process water to the plant and remove wastewater if municipal utility connections were unavailable.
In a technical response submitted to Linn County, Interstate Power and Light said the arrangement could involve approximately two to 10 water deliveries and one to three wastewater loads per day, generally from April through October.
The company proposed transporting process water from its Prairie Creek Generating Station and taking wastewater to the Cedar Rapids Water Pollution Control Facility. Alliant maintained that the truck-based system could adequately support the plant without overburdening surrounding roads.
County officials remained unconvinced that the overall proposal satisfied local infrastructure requirements.
The board also weighed issues involving public health, emergency response, environmental impacts and consistency with Linn County’s long-term development plan.
Could the proposed power plant affect Alliant Energy customers’ electric bills?
The project’s potential cost to electricity customers became another major concern during the public review.
Supervisor Sami Scheetz questioned the lack of publicly available information about the plant’s total cost and raised concerns that existing customers could eventually be asked to help pay for the project.
Supervisors also questioned how much of the projected growth in electricity demand comes from large industrial users, including data centers, and whether those customers would bear an appropriate share of new infrastructure costs.
Alliant Energy maintains that additional generating capacity is necessary to meet growing demand and maintain reliable electric service. The company has also said that large customers pay infrastructure costs associated with their increased electricity needs.
On its project website, Alliant states that its 2024 regulatory settlement includes a commitment to keep base electric rates stable through the end of the decade. The utility also says project costs can be included in customer rates only when regulators approve them as reasonable and necessary.
No specific increase in household electricity bills has been established as a result of the Morgan Valley proposal. Whether customers would ultimately pay any portion of the plant’s costs remains subject to regulatory review.
Alliant Energy says the plant is needed to meet growing electricity demand
Following the county’s rejection, Alliant Energy expressed disappointment and defended its proposal, saying the facility was designed to comply with zoning requirements and supported by technical and engineering studies.
The company said it would evaluate its next steps.
Alliant argues that eastern Iowa needs additional power generation to accommodate economic development and increasing electricity demand. The proposed facility would be capable of starting quickly when additional power is needed.
The company has also identified potential economic benefits, including construction employment and additional local tax revenue, although those benefits depend on the project moving forward.
The county had previously approved a separate host community agreement with Interstate Power and Light on Oct. 14 by a 2–1 vote. That agreement addressed payments intended to support county services associated with the proposed facility. It did not constitute approval of the plant or its rezoning request.
What happens next? Iowa regulators will review the project Dec. 7
The county’s rejection occurred during the first consideration of the rezoning application. As a result, the second and third considerations have been canceled, ending the current rezoning review at the county level.
However, the Iowa Utilities Commission is scheduled to begin considering Alliant Energy’s application on Dec. 7, 2026.
The state commission has authority to issue an electric generating certificate that could override the county’s zoning decision. Its review does not guarantee the project will receive approval.
The plant also remains subject to a separate air-quality permitting process involving the Iowa Department of Natural Resources and Linn County Public Health.
Residents can follow developments, review application documents and find official project information through Linn County’s Morgan Valley Energy Center project page.
For now, the rezoning request has been rejected, but the future of the proposed gas plant will depend on the remaining regulatory process and Alliant Energy’s next steps.
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