Island County, WA — Solar Development Risk Assessment

No Moratorium

No county-specific solar setbacks beyond standard agricultural zone requirements; NAS Whidbey height restrictions apply in approach/departure corridors.

Island County: CUP in Agricultural (AG) and Rural Resource zones; Island County Planning Commission and Board of County Commissioners.

Cautious/neutral — island community supportive of renewables but NAS Whidbey restricts land use; ferry-dependent construction logistics limit large-scale development

PSE serves much of Whidbey; Island County PUD serves other areas; NAS Whidbey Island is largest employer; ferry-dependent island geography; moderate solar irradiance (3.6 kWh/m²/day); growing rooftop adoption in Langley and Oak Harbor communities

Stable

Large facilities (≥350 MW): Washington EFSEC exclusive siting jurisdiction — state preempts local permitting. Projects <350 MW: county CUP or SUP in agricultural or resource-zoned land; no statewide preemption floor for smaller projects. SEPA review required for utility-scale; DNS/MDNS/EIS per county SEPA lead agency. GMA counties must address energy siting in comprehensive plans. SMA applies near shorelines. Critical Areas Ordinances: wetlands, fish habitat, flood zones require county CAO compliance. Agricultural land: county-specific farmland protection policies apply; prime farmland conversion may require additional findings.

Washington Clean Energy Transformation Act (CETA/SB 5116, 2019): IOUs must be carbon-neutral by 2030; 100% carbon-free by 2045. Net metering: ≤100 kW for IOU customers under WUTC; PUDs set individual limits, most allow up to 100% annual consumption offset. RESIP (Renewable Energy System Incentive Program): production incentives for systems ≤100 kW, utility-funded. Sales & use tax exemption: solar PV equipment fully exempt (RCW 82.08.962). Property tax exemption: solar systems excluded from assessed value (RCW 84.36.635). Community solar programs through PSE, SnoPUD, Tacoma Power, Clark Public Utilities, and most WA PUDs. PACE financing available in participating WA counties. Federal ITC: 30% (IRA 2022); low-income adder: 10% bonus ITC for qualifying community benefit projects.

Island County PUD net metering program active; multiple residential and small commercial rooftop projects on Whidbey and Camano Islands; limited utility-scale projects due to NAS airspace restrictions and island geography.

No formal denials on record; NAS Whidbey coordination has discouraged some utility-scale applications.