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Solar Installation in Spokane, WA

Compare 5 local solar installation pros. Typical service: $18314–$25260.

Top Solar Installation Companies in Spokane

  1. 1.Northwest Renewables

    4.7★ (69 reviews)

    4.7★ from 69 reviews

    +15097329255Website

  2. 2.VGS Solar

    5.0★ (15 reviews)

    5.0★ from 15 reviews

    +15099062619Website

  3. 3.Independent Power Generation

    4.6★ (18 reviews)

    4.6★ from 18 reviews

    +15092409615Website

  4. 4.Eco Depot

    4.5★ (15 reviews)

    4.5★ from 15 reviews

    +15099248803Website

  5. 5.Tesla Solar Spokane

    4.2★ (10 reviews)

    4.2★ from 10 reviews

    +15092459449Website

Solar Installation Cost in Spokane

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in Spokane
6 kW system, installed$18,314–$25,260/job
8 kW system, installed$24,376–$33,722/job
10 kW system, installed$30,438–$42,184/job

Solar Installation prices in Spokane run about 26% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 5 companies serving Spokane, rated 4.6★ on average across 127 customer reviews.

Spokane Climate & Seasonal Timing

What Spokane's weather means for scheduling solar installation.

Last spring frost
May 2
First fall frost
October 8
Annual precipitation
17.78"
Heating degree days
6,294
Cooling degree days
407
MonthLowHighPrecip
Jan25.9°36.8°1.95"
Feb26.5°42.1°1.38"
Mar31.1°50.5°1.57"
Apr36°58.4°1.24"
May42.1°67.7°1.71"
Jun50°74.8°1.37"
Jul54.3°85.4°0.82"
Aug54.4°84.2°0.7"
Sep46.4°74.6°0.84"
Oct36.8°59.3°1.37"
Nov30.4°43.8°2.27"
Dec24°35.3°2.56"

NOAA station data 5.37 miles from Spokane.

Permits & Regulations in WA

Permit typically required

  • Electrical contracting requires an L&I electrical contractor license with an assigned administrator or master electrician
  • Anyone doing electrical work must hold an L&I electrician certificate or trainee certificate
  • Electrical work requires an L&I or city electrical permit

License required: Washington L&I electrical contractor license and certified electricians

Sources: lni.wa.gov

Solar Installation FAQs for Spokane

How much does solar cost in Spokane?

A 6 kW home solar system in Spokane typically runs $18314-$25260 installed, before any incentives.

How many solar installers serve Spokane?

We track 5 solar installation companies serving Spokane.

Is solar installation in Spokane more expensive than average?

Electrical installation labor in Spokane runs about +26.3% versus the national average.

Do I need a permit for solar panels in Spokane, WA?

In WA, Electrical contracting requires an L&I electrical contractor license with an assigned administrator or master electrician. Rooftop solar in Spokane needs a building and electrical permit plus a utility interconnection agreement.

Is there a federal solar tax credit in 2026?

No for homeowners buying a system: the residential federal credit ended December 31, 2025, so a Spokane quote of $18314-$25260 is close to the out-of-pocket cost unless a state or utility rebate applies.

How much does air conditioning drive solar savings in Spokane?

Spokane sees about 407 cooling degree days a year; the more air conditioning a home runs, the more of a solar systems output it uses directly.

How many quotes should I get for solar in Spokane?

At least three; with 5 installers serving Spokane, compare the price per watt, panel and inverter models, and the workmanship warranty.

Does heat reduce solar output in Spokane?

Slightly; panels lose efficiency on days near 85F, so Spokane quotes should use temperature-adjusted production estimates.