Wind and Solar Leasing in Palo Alto County, Iowa

A 340 MW project, and a fight that reached the Iowa Supreme Court

MidAmerican Energy's Palo Alto Wind Energy project -- roughly 340 MW and about 170 turbines, developed with Invenergy and operational since December 2019 -- was not built without opposition. A group of local residents filed two separate lawsuits: one against the Iowa Utilities Board, arguing the board should have required a full "certificate of public convenience, use and necessity" (which would have triggered a more extensive study of the project's impact on neighbors and the environment) rather than treating the project as exempt; and one against the Palo Alto County Board of Supervisors, challenging the county's own wind ordinance and site-plan approval. At issue in the utilities-board case was an ambiguous statutory phrase -- what counts as a single wind-energy "site" -- which the board had interpreted as any collection of turbines linked by a single line to a common substation, a definition that mattered because it determined whether the more burdensome certificate requirement applied at all.

In 2019, the Iowa Supreme Court rejected the residents' challenges in both cases, allowing the project to proceed under the county's existing site-plan approval and the Utilities Board's "single site" interpretation. For a buyer, the practical lesson isn't the legal reasoning itself -- it's that Palo Alto County's wind-energy framework has already survived a real court test, which means a developer or landowner citing county and state approval for an existing turbine here is citing an approval process that has already been challenged and upheld, not an untested one.

The setback rule has moved twice: 2016, then a stricter 2022 version

During the first half of 2016, County Attorney Peter Hart drafted a new Wind Energy Conversion Systems Ordinance, modeling it on other Iowa counties' rules, with input from Invenergy during the drafting process. The county's own Zoning Commission initially proposed a 2,640-foot (half-mile) setback for turbines from permanent residential dwellings, but Invenergy and MidAmerican pushed the Board of Supervisors to reconsider that distance, and the ordinance ultimately adopted on September 27, 2016 set a smaller 1,500-foot residential setback, along with a 1,500-foot setback from cemeteries and a cap of no more than 30 hours per year of shadow flicker on a residential structure.

That 1,500-foot standard did not stay in place indefinitely. In June 2022, after Vestas proposed roughly 50 additional turbines near Lost Island Lake and Ruthven, the Board of Supervisors held three public hearings and then voted 5-0 to adopt a new, stricter standard: a half-mile (2,640-foot) setback from homes, cemeteries, and Lost Island Lake itself -- effectively restoring the larger distance the original 2016 Zoning Commission had first proposed, and extending it specifically to protect the lake. The practical upshot for anyone evaluating land here: a turbine sited under the original 2016 rule may sit closer to a residence than a turbine sited under the 2022 rule would allow, so the applicable setback for a specific structure or easement depends on which ordinance version governed at the time that turbine or project was approved.

What to check before relying on wind income or buying near a turbine here

1. Ask the Zoning and Solid Waste Department ((712) 852-3058) which ordinance version -- the original 2016 standard or the 2022 half-mile amendment -- governed the approval of any specific turbine or project near the parcel you're considering.
2. Pull the recorded easement or lease document for the specific parcel from the County Recorder ((712) 852-3701) -- the private agreement, not the ordinance alone, sets the payment structure, access-road terms, and decommissioning obligations that actually apply to that parcel.
3. If a parcel is near Lost Island Lake, Silver Lake, Five Island Lake, or Rush Lake, confirm both the applicable turbine setback and the parcel's floodplain status -- the 2022 amendment specifically extended protection to Lost Island Lake, so lake-adjacent land may carry different siting rules than land elsewhere in the county.
4. Ask the county assessor how an existing turbine easement affects a parcel's assessed value and tax bill, since wind-easement income and valuation treatment can vary by agreement.
5. If you are the one being offered a new lease, have an attorney experienced in Iowa wind-easement law review term length, payment structure, and decommissioning/restoration obligations -- these are set by the private agreement, not standardized by either ordinance version.