Clark County, WA — Solar Development Risk Assessment

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

37.2
Risk Grade
Good
Growing rooftop and commercial solar saturation as primary risk factor; urban land scarcity limits utility-scale pipeline; excellent grid infrastructure mitigates saturation concerns.
Assessment Snapshot
Population
488,241
State Rank
#9
Compliance
35%
Trajectory
40

Moratorium Status

✓ No Active Moratorium
No Moratorium

Ordinance & Regulations

Setback Requirements
Clark County UDC: setback requirements for utility-scale solar in agricultural zones; specific setbacks from residences and property lines per UDC §40.260.070.
Zoning Mechanism
Clark County: CUP or Special Use Permit under UDC in Agricultural and Rural zones; Clark County Hearing Examiner review; Board of County Councilors approval for major projects.
Acreage Caps
None codified at county level.
Density Caps
None codified.
Spacing Rules
None codified.
Size Restrictions
Size review criteria in UDC.

Board Sentiment & Political Risk

Sentiment Analysis
Supportive — Portland metro suburban growth drives strong rooftop and commercial solar demand; Clark Public Utilities active solar programs; Board of County Councilors pro-solar
Basis for Assessment
Clark Public Utilities is a PUD with active solar programs; Pacific Power serves some areas; county is fastest-growing in WA; limited greenfield utility-scale land; strong BPA-connected grid; Vancouver City has adopted climate action plan
Political Risk Factors
Improving
Board Members
Board of County Councilors (5 members) | Partisan elections | 4-yr terms | Clark County Public Service Center, Vancouver WA

Grid, Utilities & State Context

Grid Operator
WECC / BPA Transmission — Pacific Power and Clark Public Utilities service territory; I-5 corridor grid
Utilities
Clark Public Utilities, Pacific Power (PacifiCorp)
State Permitting Process
Large facilities (≥350 MW nameplate): Washington EFSEC (Energy Facility Site Evaluation Council) has exclusive siting jurisdiction — state agency preempts all local permitting. Projects <350 MW: county-level conditional use permit (CUP) or special use permit (SUP) in agricultural or resource-zoned land; no statewide preemption floor for smaller projects. SEPA (State Environmental Policy Act): environmental review required for utility-scale projects; DNS, MDNS, or full EIS depending on county SEPA lead agency threshold. Growth Management Act (GMA): 29 WA counties must incorporate energy siting in comprehensive plans; some have adopted renewable energy elements. Shoreline Management Act (SMA): projects near shorelines require Shoreline Substantial Development Permit. Critical Areas Ordinances (CAO): wetlands, fish/wildlife habitat, flood zones, and geologically hazardous areas require county CAO compliance review. Agricultural land: county-specific farmland protection policies apply; prime farmland conversion may require additional findings under county comprehensive plan.
State Incentives
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 (PSE, Avista, Pacific Power) under WUTC; PUDs set individual limits, most allow up to 100% of annual consumption offset. RESIP (Renewable Energy System Incentive Program): production-based incentives for systems ≤100 kW, funded by utilities under WUTC mandate. 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: available through PSE, SnoPUD, Tacoma Power, Clark Public Utilities, and most WA PUDs. PACE financing: available in participating WA counties. Federal ITC: 30% investment tax credit (IRA 2022) for commercial and residential. Low-income adder: 10% bonus ITC for projects serving income-qualified communities (IRA §48E).

Development Activity

Active/Completed Projects
Multiple commercial and community rooftop solar installations in Vancouver and Clark County industrial areas; Clark Public Utilities community solar program has enrolled hundreds of customers; limited greenfield utility-scale approvals due to urban land pressure.
Denied/Withdrawn Projects
No confirmed utility-scale denials; some project inquiries redirected to rooftop/community solar due to land scarcity.

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