This post follows up on the first one in a series that was entitled “Solar Power Incentives in Oregon.” Washington State, to the north, also boasts a number of generous tax and other incentives to encourage investment in solar power. We’ll review each of them here, including links and information needed to go solar.
With reduced costs and greater efficiency, solar panels are becoming mainstream faster than you can say, “low electrical bills.” And, with every $1 you save annually on power, your property increases in value by $20. Perhaps you’ll save $500 per year? That’s an automatic $10,000 equity boost, right from the start!
Definitely keep this in mind when considering the cost of solar panels.
In order to encourage people to install solar panels, Washington offers several key incentives. These are in addition to federal energy tax credits, which can be combined to reduce the cost of solar panels by more than 50%.
Perhaps most notable is the state law that waives 100% of the sales tax on purchase and installation of PV and/or solar hot water systems, through 2011 (hopefully the Washington Legislature will extend this generous offer).
In addition, if you qualify for a Bonneville Environmental Foundation (BEF)-Renewable Energy Grant, you could save up to 33% of capital costs for purchase and installation of solar power in Washington. Visit their official website to learn more about the application process.
Under the terms of Senate Bill (SB) 5101, consumers can obtain an annual tax credit for small scale solar systems that are connected to the grid. The Department of Revenue requires you to fill out a form that you must submit to your local utility, provided they are participating in the program (most are). If you’ve purchased solar power equipment that was manufactured in Washington, enjoy an additional credit up to $2,000 annually.
All this saving with solar power is worth singing about!
As with the first post on Oregon, here is a list of the solar power incentives in Washington state, with credit to the DSIRE (database of State Incentives for Renewables and Efficiency):
- Evergreen Sustainable Development Standard for Affordable Housing
- Seattle – Density Bonus for Green Buildings
Industry Recruitment/Support
Local Grant Program
Private Grant Program
Production Incentive
- Chelan County PUD – Sustainable Natural Alternative Power Producers Program
- Northwest Solar Cooperative – Green Tag Purchase
- Okanogan County PUD – Sustainable Natural Alternative Power Program
- Orcas Power & Light – Production Incentive
- Washington Renewable Energy Production Incentives
Sales Tax Exemption
State Grant Program
Utility Grant Program
- Puget Sound Energy – Commercial New Construction Energy Efficiency Grant Program
- Puget Sound Energy – Commercial Retrofit Energy Efficiency Grant Program
- Puget Sound Energy – Resource Conservation Manager Program
Utility Loan Program
- Chelan County PUD – Residential Weatherization Loan Program
- Clallam County PUD – Residential and Small Business Solar & Efficiency Loan Programs
- Clark Public Utilities – Residential Heat Pump Loan Program
- Clark Public Utilities – Residential Weatherization Loan Program
- Clark Public Utilities – Solar Energy Equipment Loan
- Ferry County PUD #1 – Off-Grid Solar PV Financial Assistance
- Franklin County PUD – Residential Energy Efficiency Loan Program
- Franklin County PUD – Solar Energy System Loan
- Grant County PUD – Residential Loan Program
- Grays Harbor PUD – Residential Energy Efficiency Loan Program
- Grays Harbor PUD – Solar Water Heater Loan
- Klickitat PUD – Loan Program
- Okanogan PUD – Conservation Loan Program
- Pacific County PUD – Solar Water Heater Loan
- Port Angeles Public Works & Utilities – Solar Energy and Energy Efficiency Loan Program
- Richland Energy Services – Residential Energy Conservation Loan Program
- Snohomish County PUD No 1 – Conservation Loan Program
- Snohomish County PUD No 1 – Solar Express Loan Program
- Tacoma Power – Residential Weatherization Loan Program
Utility Rebate Program
- Avista Utilities – Commercial HVAC Variable Frequency Drive Initiative
- Avista Utilities – Commercial Lighting Energy Efficiency Program
- Avista Utilities – LED Traffic Signal Incentive Program
- Avista Utilities – LEED (NC or EB) Certification Incentive Program
- Avista Utilities – Power Management for Personal Computer (PC) Networks
- Avista Utilities – Premium Efficiency Motors Program
- Avista Utilities – Residential Energy Efficiency Rebate Programs
- Avista Utilities – Site-Specific Energy Efficiency Incentives
- Avista Utilities – Supermarket and Grocery Store Refrigeration Rebates
- Benton PUD – Commercial and Agricultural Energy Efficiency Rebate Programs
- Benton PUD – Energy Efficient Manufactured Homes Rebate Program
- Benton PUD – Residential Energy Efficiency Rebate Programs
- Cascade Natural Gas – Conservation Incentives for Existing Homes
- Cascade Natural Gas – Conservation Incentives for New Homes
- Clallam County PUD – Residential Solar & Efficiency Rebate Program
- Clark Public Utilities – Commercial Energy Efficiency Rebate Programs
- Clark Public Utilities – Residential Energy Efficiency Rebate Program
- Clark Public Utilities – Solar Water Heater Rebate
- Columbia Rural Electric Association – Irrigation Energy Efficiency Rebate Program
- Columbia Rural Electric Association – Residential Energy Efficiency Rebate Program
- Cowlitz County PUD – Commercial Energy Efficiency Rebate Programs
- Cowlitz County PUD – Energy Star Homes Program for Builders
- Cowlitz County PUD – H2 AdvantagePlus Residential Heat Pump Program
- Cowlitz County PUD – Residential Energy Efficient Appliance Rebate Program
- Cowlitz County PUD – Residential Weatherization Plus Program
- Ferry County PUD #1 – Residential Energy Efficiency Rebate Programs
- Franklin County PUD – Energy Efficiency Rebate Program
- Franklin County PUD – Solar Energy System Rebate
- Grant County PUD – EnergyStar New Home Certification Program
- Grant County PUD – Residential Energy Efficiency Rebate Program
- Grays Harbor PUD – Non-Residential Energy Efficiency Rebate Program
- Grays Harbor PUD – Residential Energy Efficiency Rebate Program
- Grays Harbor PUD – Solar Water Heater Rebate
- Inland Power & Light Company – Agricultural Energy Efficiency Rebate Programs
- Inland Power & Light Company – Residential Energy Efficiency Rebate Programs
- Klickitat PUD – Solar PV Rebate
- Lakeview Light and Power – Commercial Lighting Rebate Program
- Lakeview Light and Power – Energy Smart Commercial Rebate Program
- Lewis County PUD – Commercial and Industrial Energy Efficiency Rebate Program
- Mason County PUD 3 – Appliance Rebate Program
- Mason County PUD 3 – Commercial Conservation Rebate Program
- Mason County PUD 3 – Residential Energy Improvement Rebate Program
- Modern Electric Water Company – Residential Efficiency Rebate Program
- NW Natural – Residential Energy Efficient Furnace Rebate Program
- Okanogan County PUD – Residential Energy Efficiency Rebate Program
- Orcas Power & Light – Photovoltaic Rebate
- Orcas Power & Light – Residential Energy Efficiency Rebate Program
- Pacific County PUD – Solar Water Heater Rebate
- Pacific Power – Energy FinAnswer (For Large Commercial, Industrial and Irrigation Facilities)
- Pacific Power – Energy Star New Homes Program For Builders
- Pacific Power – FinAnswer Express (For Smaller Commercial, Industrial and Irrigation Facilities)
- Pacific Power – Residential Energy Efficiency Rebate Programs
- Pend Oreille PUD – Commercial and Industrial Rebate Program
- Pend Oreille PUD – Manufactured Home Rebate Program
- Port Angeles Public Works & Utilities – Commercial and Industrial Energy Efficiency Rebate Program
- Port Angeles Public Works & Utilities – Residential Energy Efficiency Rebate Program
- Port Angeles Public Works & Utilities – Solar Energy System Rebate
- Puget Sound Energy – Commercial Energy Efficient Equipment Rebate Programs
- Puget Sound Energy – Commercial HVAC Equipment Energy Efficiency Rebate Program
- Puget Sound Energy – Commercial Lighting & Lighting Controls Energy Efficiency Rebate Programs
- Puget Sound Energy – Commercial Premium-Efficiency Motor Rebate Program
- Puget Sound Energy – Manufactured Home Rebate Program
- Puget Sound Energy – Multi-Family Efficiency Programs
- Puget Sound Energy – Portable Classroom Energy Efficient Controls Rebate Program
- Puget Sound Energy – Residential Energy Efficiency Rebate Programs
- Richland Energy Services – Energy Efficient Commercial Lighting Program
- Richland Energy Services – Residential Energy Efficiency Rebate Program
- Richland Energy Services – Residential Solar Power Rebate Program
- Seattle City Light – Commercial Energy Efficiency Rebate Programs
- Seattle City Light – Multi-Family Residential Energy Efficiency Rebate Program
- Seattle City Light – New Construction Incentive Program
- Seattle City Light – Residential Energy Efficiency Rebate Program
- Seattle City Light – Vending Machine Rebate Program
- Snohomish County PUD No 1 – Commercial and Industrial Energy Efficiency Rebate Program
- Snohomish County PUD No 1 – New Homes Rebate Program For Builders
- Snohomish County PUD No 1 – Residential Energy Efficiency Rebate Program
- Snohomish County PUD No 1 – Solar Express Rebate Program
- Tacoma Power – Commercial and Industrial Energy Efficiency Rebate Programs
- Tacoma Power – Residential Energy Efficiency Rebate Program
- Vera Irrigation District #15 – Energy Efficiency Rebate Program
Just a few years ago, Washington State was criticized for not providing adequate, meaningful solar power incentives. Looks like the Evergreen state is stepping up to the plate, now. If you have utilized any of these programs, we’d love to hear your experiences. Please leave a comment below.
And, for more information and resources concerning solar power in Washington, check out Solar Washington.org.
Tags: cost solar panels, solar power incentives, solar power washington, solar washington, washington state


The incentives offered by the government to encourage solar panel installation will undoubtedly influence a lot of people to make the change. When you decide you want to go solar the next step is finding a contractor who can make your project a reality. To find contractors in your area go to http://www.helphive.com/electrical
I am on the Ferndale City Council and I am trying to educate and persuade my fellow councilors about the advantages of building a sustainable public safety building. 3-7 2010
Hi Lloyd, I used to live in Washington state! Kudos to you for trying to help encourage sustainable building in Ferndale. Over time, the benefits will outweigh any initial costs: (1) reduced energy use; (2) lower public costs for maintenance and operation of the building; (3) tighter construction and better insulation means lower A/C and heating costs; (4) LED light bulbs mean they may never have to be replaced for 20-30 years; (5) renewable energy installations like solar and/or wind provide reliable back-up power in the event of an emergency, and also lower energy costs. There are many benefits. As an elected official, you will probably need to present specific research on the costs, tax savings, and amount of time that it will take to recoup investment. Many contractors are prepared to help with that analysis. It could be incorporated as part of the requirements in an RFP.