Umatilla County, OR — Solar Development Risk Assessment

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

41
Risk Grade
Good
Good eastern Oregon solar irradiance; wind energy precedent normalizes energy development; Hermiston industrial area offers utility-scale sites; CTUIR operates independent energy program; growing Hermiston population improves distributed solar market
Assessment Snapshot
Population
77950
State Rank
#9
Compliance
45%
Trajectory
35

Moratorium Status

✓ No Active Moratorium
No

Ordinance & Regulations

Setback Requirements
100 ft from property lines; 150 ft from residences; CTUIR tribal buffer zones near reservation boundary; McNary Pool shoreline setback
Zoning Mechanism
EFU, Grazing (G), CTUIR Reservation (tribal sovereignty), Pendleton/Hermiston/Milton-Freewater/Athena/Pilot Rock Urban Growth Boundaries, Industrial (Hermiston)
Acreage Caps
No county cap
Spacing Rules
None specified
Size Restrictions
ODOE >35 MW; CTUIR separate energy program on reservation; BLM for federal lands; county CUP; Umatilla Army Depot security perimeter coordination

Board Sentiment & Political Risk

Sentiment Analysis
Neutral-Moderate — Pendleton and Hermiston pragmatic; CTUIR operates separate energy development program; agricultural community open to solar lease income; East Oregonian coverage neutral
Basis for Assessment
Umatilla County planning records 2019-2024; East Oregonian (Pendleton) newspaper; CTUIR Energy Program; Hermiston Herald; BLM Pendleton Resource Area records
Political Risk Factors
Stable — moderate-conservative Pendleton community; Hermiston industrial area pragmatic about energy development; CTUIR has separate energy development program; no organized anti-solar movement
Board Members
George Murdock (Chair), John Shafer, Bill Elfering

Grid, Utilities & State Context

Grid Operator
Pacific Power (PacifiCorp); BPA (McNary Dam–Walla Walla corridor; good transmission access)
Utilities
Pacific Power (PacifiCorp), Umatilla Electric Cooperative
State Permitting Process
ORS 215 EFU CUP; ODOE >35 MW; CTUIR tribal permitting (independent); BLM ROW; Umatilla County Zoning Ordinance
State Incentives
Eligible — Oregon Solar + Storage Rebate Program; Energy Trust of Oregon; CTUIR tribal programs (on-reservation)

Development Activity

Active/Completed Projects
Nolin Hills Energy (600 MW, 2023)
Denied/Withdrawn Projects
0

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