Washington solar contractor license: Complete 2026 Guide

Official-source review: August 25, 2026

Washington solar contractor license: Washington does not issue one standalone solar contractor license. Photovoltaic electrical work must be performed through an electrical contractor using certified electricians: general 01 covers all installations, while residential 02 can cover interconnected production sources within its defined dwelling scope.

Fast answer: Match the project to 01 or residential 02 electrical authority, ensure the business holds the corresponding electrical contractor license with an assigned administrator or master electrician and $4,000 bond, use properly certified electricians, purchase the electrical permit, complete inspection and obtain utility interconnection approval before operation.

Washington solar contractor license requirements experience examination fees renewal and official sources — Washington requirements summarized from the responsible agencies. Local permits, employers and certifying bodies may impose additional conditions.

What the Washington solar contractor license covers

Washington does not issue one standalone solar contractor license. Photovoltaic electrical work must be performed through an electrical contractor using certified electricians: general 01 covers all installations, while residential 02 can cover interconnected production sources within its defined dwelling scope.

01 photovoltaic wiring and equipment in all covered occupancies.
02 interconnected power-production sources serving dwellings within the residential scope.
Electrical permits, inspection and correction process.
Utility interconnection and permission to operate.

Review the underlying Washington electrician license before choosing a solar pathway.

Washington solar contractor license requirements at a glance

Requirement	Current rule or route
Route	General 01 or qualifying residential 02 electrical contractor and electrician credentials, plus contractor registration for non-electrical scope
Eligibility	Individual electricians meet 01 apprenticeship or 02 specialty experience requirements; the business assigns a matching administrator or master electrician.
Exam	Washington examination for the individual electrician and assigned administrator or master route.
Fees	Electrical business, electrician and permit fees depend on classification and system size. Non-electrical contractor registration is $150.20 when separately required.
Bond or insurance	Electrical contractor business maintains a $4,000 bond; a separate construction contractor registration requires the applicable $15,000 or $30,000 bond and liability coverage.
Renewal	Individual certificates every three years; electrical contractor license and general/specialty registration every two years.

Do not treat this table as an approval notice. The agency, certification organization or local jurisdiction makes the final eligibility decision and may request additional evidence.

How to complete the Washington solar contractor license process

Confirm the correct credential and scope.
Complete required training and experience.
Pass the required examination.
Submit the application and fees.
Complete business licensing, bond and insurance requirements.
Obtain permits and renew on time.

Keep copies of every experience certificate, examination result, bond or insurance filing and payment receipt. Names and business entities should match across the application and supporting documents.

Important Washington rules and boundaries

NABCEP certification does not replace Washington electrical licensing.
Residential 02 cannot perform commercial solar work outside its scope.
Roofing, structural and plumbing work may require separate registrations or credentials.
Utility approval is separate from L&I or city inspection.

Washington may separate the credential held by a worker from the contractor license held by the business, while preserving local authority over permits and inspections. Confirm every applicable layer before bidding, advertising or beginning regulated work.

Washington solar contractor license cost and renewal

Add training, examination, bond, equipment and local permitting costs.

Renew by the published deadline and retain all supporting records.

Government charges are only part of the expected cost. Training, examination preparation, fingerprints, surety premiums, insurance, equipment calibration and local permits can add to the total.

Washington solar contractor license checklist

Confirm that this credential matches the exact work you will perform.
Check whether the applicant is an individual, sole owner or separate business entity.
Collect experience and training records before submitting the application.
Use the current official form and fee schedule.
Complete every required examination or approved certification route.
File bonds, insurance and fingerprints when applicable.
Check county, city, water supplier and building-permit rules.
Save the expiration date and renewal requirements.

Frequently asked questions

Is this credential statewide?

Yes; local permits and inspections remain separate.

Is an exam required?

Washington examination for the individual electrician and assigned administrator or master route.

When does it renew?

Individual certificates every three years; electrical contractor license and general/specialty registration every two years.

Are local approvals separate?

Yes.

Official sources used

Verified licensing details

Jurisdiction: state credential plus local permits and inspections
Licensing authority: Washington Department of Labor & Industries Electrical Program and serving utility
Fees: Electrical business, electrician and permit fees depend on classification and system size. Non-electrical contractor registration is $150.20 when separately required.
Experience: Individual electricians meet 01 apprenticeship or 02 specialty experience requirements; the business assigns a matching administrator or master electrician.
Exams: Washington examination for the individual electrician and assigned administrator or master route.
Insurance or bond: Electrical contractor business maintains a $4,000 bond; a separate construction contractor registration requires the applicable $15,000 or $30,000 bond and liability coverage.
Continuing education: Electricians and administrators complete 24 approved continuing-education hours each three-year cycle.
Renewal period: Individual certificates every three years; electrical contractor license and general/specialty registration every two years.

Official sources

Official sources last checked August 24, 2026.

Requirements can change and local rules may apply. Confirm the current requirements with the official authority before paying a fee or beginning work.