Louisa County, IA — Solar Development Risk Assessment

Local solar ordinance barriers, board sentiment, and utility policies that affect development timelines and risk.

38.2
Risk Grade
Good
SE Iowa agricultural; Wapello area; active solar; local CUP
Assessment Snapshot
Population
11,035
State Rank
#4
Compliance
52%
Trajectory
50

Moratorium Status

✓ No Active Moratorium
No Moratorium

Ordinance & Regulations

Setback Requirements
None codified. No confirmed county-specific solar ordinance.
Zoning Mechanism
Louisa County Planning & Zoning: CUP/SUP in Agricultural district.
Acreage Caps
None codified.
Density Caps
None codified.
Spacing Rules
None codified.
Size Restrictions
None codified.

Board Sentiment & Political Risk

Sentiment Analysis
Generally receptive — agricultural community
Basis for Assessment
SE Iowa agricultural; Wapello area; active solar; local CUP
Political Risk Factors
Stable
Board Members
Shawn Maine | Chair | Kevin Hardin | Supervisor | Board of Supervisors | 3 members | Wapello, Iowa | 4-yr staggered terms | Partisan elections

Grid, Utilities & State Context

Grid Operator
MISO / Alliant Energy (ALTW) zone
Utilities
Alliant Energy (ALTW), Eastern Iowa Light & Power
State Permitting Process
Iowa Utilities Board (IUB) generating certificate required for projects ≥25 MW (Iowa Code §478). Projects <25 MW: local CUP/SUP under county/township zoning governs. No statewide preemption of local ordinances — Iowa is a strong local-control state. County boards have full authority to restrict or deny solar below 25 MW threshold. Active local opposition movement in many agricultural counties; several moratoriums and restrictive ordinances enacted 2021–2024. IUB certificate does not override local zoning for sub-25 MW projects. MISO interconnection territory statewide.
State Incentives
Iowa Renewable Energy Standard: minimal (105 MW aggregate mandate met since late 1990s). Net metering: IUC-regulated utilities (MidAmerican Energy, Alliant IPL) offer net metering under Iowa Code §476A; programs vary by cooperative. Property tax exemption: 5-year exemption for solar equipment added via IA Code §427B.26. MidAmerican Energy planning 800 MW new solar at ~6 IA sites by 2028 (filed IUC Feb 17 2025). Utility: MidAmerican Energy serves Des Moines metro, western/central IA; Alliant Energy/IPL serves eastern/southern IA; rural areas served by 60+ electric cooperatives.

Development Activity

Active/Completed Projects
Wapello Solar | 100 MW | 800 acres | Alliant Energy/MidAmerican | 2021 operational; Orion Renewables project | 1,100 MW | 3,300 acres | $2.1B | permit approved ~2025
Denied/Withdrawn Projects
No confirmed county conditional use permit denial on record for Louisa County as of Mar 2026. Iowa Wind and Solar Energy Generation Act governs. Contact Louisa County Planning.

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