Grant County, WI — Solar Development Risk Assessment

No Moratorium

None codified. No confirmed county-specific setbacks.

Grant County: CUP in Agricultural/Industrial district for projects <100 MW.

Generally receptive — agricultural community; some scenic friction

SW WI agricultural; Lancaster area; active solar; Mississippi River bluffs add scenic sensitivity; local CUP

Stable

PSC of Wisconsin has siting authority for wind/solar ≥100 MW (Wis. Stat. §196.491). Projects <100 MW: local CUP/SUP under county/town zoning governs. Local restrictions on wind systems must meet one of 3 conditions: (1) public health/safety; (2) not significantly increase cost/decrease efficiency; (3) allows comparable alternative. Local solar restrictions face similar reasonableness standard. No statewide preemption below 100 MW threshold — strong local control. MISO interconnection territory statewide.

Wisconsin RPS: 10% renewable by 2015 (met — weakest in region). Focus on Energy program: commercial/industrial rebates for solar ($150-450/kW for ≤25 kW). Property tax exemption: Wis. Stat. §70.111(18) — solar systems exempt from property tax assessment. Sales tax exemption: Wis. Stat. §77.54(57m) — solar equipment purchases exempt. Wisconsin Green Energy program: voluntary renewable program through WPS, MGE, We Energies. Alliant WPL (WI) has deployed ~1,089 MW solar by 2024; Vista Sands (1,315 MW Portage Co.) approved June 2025 — largest WI solar project. Utility: We Energies (WEC) serves SE WI/Milwaukee; WPS (WEC) serves NE WI; Alliant Energy (WPL) serves central/southern WI; MGE serves Madison metro; Xcel NSPW serves far NW WI; Dairyland Power Coop and WPPI Energy serve rural areas.

Grant County Solar | 200 MW | H1 2024 | Alliant WPL | PSC CPCN approved (Wave 2 Apr 2022) | Town of Potosi | Operational | 100 MW/400 MWh BESS co-located (PSC approved Aug 2023; flexgen.com)

No confirmed Wisconsin PSC (Public Service Commission) denials for Grant County. Wisconsin PSC issues CPCN for utility-scale projects.