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Home  /  Solar site surveys  /  Oregon

Solar site surveys · Oregon

Solar site surveys in Oregon

A technician on the roof, in the attic and at the service panel, with the survey read against the code editions, AHJs and utilities that apply in Oregon.

NEC 2026Electrical code in effect
2Utilities covered here
48 hrsSurvey to deliverable
Nationwide500+ technicians
Short answer

Oregon writes its own statewide specialty codes: the 2026 Oregon Electrical Specialty Code, based on the 2026 NEC, takes effect October 1, 2026, and residential solar follows the Oregon Residential Specialty Code, which has its own prescriptive PV path and roof pathway rules. PGE and Pacific Power offer 1:1 net metering with an annual March true-up. Surveys should plan for seismic design category D in Portland, snow loads that rise with elevation, and framing checks against the prescriptive limits.

What changes in Oregon

The capture spec is the same everywhere. What the engineer and the plan reviewer read it against is not.

OR · METROSPortland, Oregon
Code stack
2026NEC 2026National Electrical Code · effective Oct 1, 2026. The 2026 Oregon Electrical Specialty Code adopts the 2026 NEC with Oregon amendments and takes effect October 1, 2026, replacing the 2023 OESC (based on the 2023 NEC) that applied from October 1, 2023. Oregon's amendments require rapid shutdown for existing PV when a system is added to, and a grounding electrode system for buildings that support PV arrays.1,2,3
2021IRC 2021The 2023 Oregon Residential Specialty Code, based on the 2021 IRC, took effect October 1, 2023 and became mandatory April 1, 2024. A 2026 ORSC based on the 2024 IRC was expected to be adopted October 1, 2026, with a six-month phase-in in which applicants can use either edition until March 31, 2027.4,5,6
2024IFC 2024The 2025 Oregon Fire Code is the 2024 IFC as amended by the State Fire Marshal, effective October 1, 2025, with a 180-day phase-in that ended March 31, 2026.7
2025OSSC 2025The 2025 Oregon Structural Specialty Code, covering commercial structures, took effect October 1, 2025 and became mandatory April 1, 2026.4
Rooftop fire access. Detached one- and two-family dwellings and townhouses need firefighter access pathways under ORSC Section R324.6, sized by how much of the roof the array covers and whether a PV-free adjacent roof plane exists; nonoccupied accessory structures set back 5 feet are exempt, and the building official can waive pathways on the fire official's recommendation.8,9

Climate and site factors

Seismic

Portland designs one- and two-family homes to Seismic Design Category D1, so attachment and roof framing details matter for engineered solar submittals.10

Snow and wind

The prescriptive path stops at a 70 psf ground snow load and Exposure B or C; wider 48-inch attachment spacing is only allowed at 36 psf or less, with wind limits of 120 mph (Exposure B) or 110 mph (Exposure C).11

Roof types

Prescriptive installs need metal, single-layer wood shingles or shakes, or no more than two layers of composition shingle; standing-seam clamps have their own spacing and uplift limits.11

HOAs

Planned communities cannot ban solar panels but may set reasonable size, placement and appearance rules.12

Permitting in Oregon

Who reviews the plan set, and what the state layers on top.

Utilities and interconnection

Net metering for the investor-owned utilities is set by ORS 757.300 and the PUC's net metering rules (OAR 860-039); Pacific Power's tariff under them covers systems up to 25 kW for homes and 2 MW for other customers, and PGE takes commercial applications from 25 kW to 2 MW.17,18

Portland General Electric PGE

Serves more than 950,000 customers in 51 cities. Installers apply through PowerClerk; residential applications up to 25 kW are free, and PGE advises waiting for approval before building, then obtaining the local electrical permit before it orders a bidirectional meter.19,18

Interconnection page ↗

Pacific Power

PacifiCorp's Oregon utility takes net metering applications online with a photo of the meter; after the install and inspection it swaps the meter in 7 to 10 days, and its typical end-to-end timeline is about 70 business days.20

Interconnection page ↗
Export compensation. PGE and Pacific Power net metering credits monthly excess as kWh at the full retail rate for each per-kWh charge, carries credits forward, and at the end of the annual cycle that closes with the March bill transfers unused credits to low-income assistance rather than paying the customer. Pacific Power's Schedule 135 caps residential systems at 25 kW, as of September 2026.17,21,18

What we capture on every Oregon survey

One standard, one visit, the same record in Oregon as everywhere else. What it gets checked against is the code stack above.

Roof and structure

  • Measured roof planes: pitch, azimuth, dimensions
  • Every penetration and obstruction, located
  • Rafter or truss size, spacing and span
  • Decking type and condition
  • Layer count at a cut edge
  • Setbacks and fire pathway constraints
  • Horizon shading capture per array area

Electrical and interconnection

  • Main breaker and bus bar rating, photographed separately
  • Meter location and configuration
  • Slot count: used, open, tandem, double-tapped
  • Available interconnection points
  • Existing loads and sub-panels
  • Conduit route, measured along the actual path
  • Grounding electrode and bonding path

Commercial buildings

  • Membrane type, age and condition, with drainage pattern
  • Bar joist depth, spacing and span
  • Deck type and gauge
  • Switchgear and available bus capacity
  • Access and lift constraints for the install crew

Every visit

  • Roof and electrical in one visit, no second trip
  • 48-hour turnaround from survey to deliverable
  • Photo documentation throughout
  • Permit sets available, stamped, 6 days from survey

Oregon solar survey FAQ

Which NEC edition applies to solar in Oregon?

From October 1, 2026, the 2026 Oregon Electrical Specialty Code, based on the 2026 NEC with Oregon amendments; before that, the 2023 OESC based on the 2023 NEC. Confirm which edition applies to a permit filed near the changeover.1,3

Do I need an engineer for rooftop solar in Oregon?

Not if the job fits the ORSC prescriptive path (for example, 70 psf ground snow or less, 4.5 psf array weight or less, framing at 24 inches on center or less). Otherwise an Oregon-registered design professional must design it.11,13

What happens to unused net metering credits in Oregon?

For PGE and Pacific Power customers, credits roll forward monthly, and whatever remains after the March billing period goes to low-income bill assistance; customers are not paid for it.21,17

Can an Oregon HOA prohibit solar panels?

No. ORS 94.778 voids planned community provisions that prohibit solar panels, while allowing reasonable size, placement and aesthetic rules.12

Does rooftop solar need land use approval in Oregon?

Generally no. Rooftop PV on a home is an outright permitted use wherever homes are allowed, reviewed ministerially if it adds no footprint or height and is mounted parallel to the roof, except on historic properties and in scenic areas.15,16

Services and further reading

Metro pages for Oregon: Portland, Oregon.

From Field Notes

Sources

Every local fact on this page links to where it came from. Codes, programs and tariffs change: confirm the current requirement with the AHJ and the utility before you design.

  1. https://secure.sos.state.or.us/oard/viewAttachment.action?ruleVrsnRsn=338031
  2. https://www.oregon.gov/bcd/codes-stand/Documents/26oesc-timeline.pdf
  3. https://www.oregon.gov/bcd/codes-stand/pages/electrical.aspx
  4. https://www.oregon.gov/bcd/codes-stand/pages/adopted-codes.aspx
  5. https://www.oregon.gov/bcd/codes-stand/pages/orsc-adoption.aspx
  6. https://www.portland.gov/ppd/residential-permitting/news/2026/9/9/new-residential-codes-expected-take-effect-oct-1
  7. https://secure.sos.state.or.us/oard/viewSingleRule.action?ruleVrsnRsn=327787
  8. https://www.oregon.gov/bcd/codes-stand/Documents/techb-solarpv-pathways.pdf
  9. https://codes.iccsafe.org/s/ORRC2023P1/chapter-3-building-planning/ORRC2023P1-Pt03-Ch03-SecR324.6.8.1
  10. https://www.portland.gov/ppd/residential-permitting/structural-engineering/one-and-two-family-residential-structures
  11. https://www.oregon.gov/bcd/Formslibrary/5952.pdf
  12. https://law.justia.com/codes/oregon/volume-03/chapter-094/section-94-778/
  13. https://www.portland.gov/ppd/solar-development/solar-permits
  14. https://oregon.public.law/rules/oar_918-050-0180
  15. https://oregon.public.law/statutes/ors_227.505
  16. https://oregon.public.law/statutes/ors_215.439
  17. https://www.pacificpower.net/content/dam/pcorp/documents/en/pacificpower/rates-regulation/oregon/tariffs/rates/135_Net_Metering_Service_Optional_for_Qualifying_Customers.pdf
  18. https://assets.ctfassets.net/416ywc1laqmd/18flR0QCeBbnWrd6bap0Gt/3702b1c8b665732467097de9e215d7aa/486200-SNEM-Net-Metering-FAQ-PDF-11.20.25_FNL__1_.pdf
  19. https://portlandgeneral.com/about/info/service-area
  20. https://www.pacificpower.net/savings-energy-choices/customer-generation.html
  21. https://portlandgeneral.com/net-metering-enrolled

Researched September 30, 2026.

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