Washington Solar Rebates, Incentives, and Tax Credits

Washington has some of the lowest electricity rates in the country with the U.S. Energy Information Administration reporting an average price of 7.8 cents/kWh.
Why so cheap? Well Washington has invested in many hydroelectric plants that can deliver relatively low cost energy but do have their share of environmental costs such as the destruction of aquatic ecosytems for dam construction. The Washington solar industry is definitely growing and we encourage you to consider installing a home solar power system to offset some of electricity needs. Take a look at the rebates and incentives currently offered.
Net Metering
Washington State law states that utilities must credit the excess electricty you generate from your home solar power system at the full retail rate (some utilities are only required to credit at the wholesale rate). If your solar system generates more electricity than you use, the utility will credit your account. This credit can be carried-over month-to-month but not annually. On April 30th of every year, any remaining electricity credits will be granted to the utility.
Production Incentives
- Chelan County PUD - Sustainable Natural Alternative Power Producers
- Northwest Solar Cooperative - Green Tag Purchase
- Okanogan County PUD - Sustainable Natural Alternative Power Program
- Orcas Power & Light - Production Incentive
- Washington Renewable Energy Production Incentives - The incentive amount paid to the producer starts at a base rate of $0.15 per kilowatt-hour (kWh) and is adjusted by multiplying the incentive by the following factors:
- For electricity produced using solar modules manufactured in Washington state: 2.4
- For electricity produced using a solar or wind generator equipped with an inverter manufactured in Washington state: 1.2
These multipliers result in production incentives ranging from $0.12 to $0.54/kWh, capped at $5,000 per year. Ownership of the renewable-energy credits (RECs) associated with generation remains with the customer-generator and does not transfer to the state or utility.
Renewable Energy Sales and Use Tax Exemption
- 100% sales tax exemption on home solar power systems greater than 1KW
- Applies to labor and services related to the installation of the equipment, as well as to the sale of equipment and machinery
Utility Loan Programs
- Clallam County PUD - Residential and Small Business Solar & Efficiency Loan Programs
- Clark Public Utilities - Solar Energy Equipment Loan
- Ferry County PUD #1 - Off-Grid Solar PV Financial Assistance
- Franklin County PUD - Solar Energy System Loan
- Grant County PUD - Residential Loan Program
- Klickitat PUD - Solar PV Loan Program
- 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 - Solar Express Loan Program
Utility Rebate Programs
- Clallam County PUD - Residential Solar & Efficiency Rebate Program - rebate of $500 per kilowatt (kW-DC) of installed capacity
- Franklin County PUD - Solar Energy System Rebate - Rebates of $500/kW DC are available for PV systems
- Klickitat PUD - Solar PV Rebate - solar PV rebate of $400 per kW-DC of installed capacity, up to a maximum amount of $1,200
- Orcas Power & Light - Photovoltaic Rebate - $1.50 per watt AC up to $4,500 per system
- Richland Energy Services - Residential Solar Power Rebate Program - $500 for every kilowatt (kW) of installed solar (within the City's service area) up to 5 kW
- Snohomish County PUD No 1 - Solar Express Rebate Program - $500 per kilowatt (kW) of installed PV, up to a cap of $2,500
Example
| Location | Seattle, WA |
|---|---|
| Av. Monthly Electricity Bill | $70 |
| System Size | 5 kW |
| Estimated Electricity Production (Using NREL tool) | 5,172 kWh |
| Estimated annual electricity useage | 12,000 kWh |
| Cost / Watt (installed) | $7.00 |
| Cost Breakdown | |
| Total Cost | |
| Rebates | $35,000 |
|
Washington Renewable Energy Production Incentives Between $0.15/kWh and $0.53/kWh (see production incentives section for details) - 10 year program |
$775 to $2,741 |
| Federal Tax Incentive (calculated after state rebate) | $10,500 |
| NET COST Year 1 | $21,759 to $23,725 |
| Cash Flow | |
| New Av. Monthly Electric Bill | $40 |
| Monthly Loan Payment on $24,500 | $163 |
| Tax Saving | -$54* |
| Production Incentives | $64 to $228 |
| NEW MONTHLY NET COST Year 1 |
-$79 to $85 |
* Tax savings will decrease as the principal is paid down. Please consult your tax preparer.
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