Purchase Green Power
Seattle City Light (greenupseattle.org) Purchase green power for the percentage of energy you use. $3/25%, $6/50%, $12/100%.
Puget Sound Energy (pse.com) Purchase 100% of your usage for just over a penny per kWh (usually $10 extra per month), or in blocks of $2 per 160 kWh.
Snohomish PUD (snopud.com) Contributions to Planet Power can be made in $3 increments. Tacoma Power (tacomapower.com) Evergreen Options can be purchased for $3 per 250 kWh.
Home Solar Production
Solar power at home is increasingly easier to fund through mortgage loans and incentives. Check your utility’s site first, most have helpful information. The Database of State Incentives for Renewables and Efficiency (dsireusa.org) will give you the most complete look at federal and state incentives. The Federal Residential Renewable Energy Tax Credit can be up to 30% of the cost of the system, and state incentives can be up to $2,000 with additional incentives for purchasing equipment made in Washington.
Seattle City Light (greenupseattle.org) has a detailed Solar Energy page with good FAQ for any Washington resident interested in how to begin, including answers to common questions such as cost or how to select a contractor.
Home Wind Power Production
If you live in a rural area, or are part of a community with some extra space, you may be a candidate for producing wind energy with your own turbine and selling excess energy back to your utility through net metering. Wind Powering America (windpoweringamerica.gov) is a good place to start searching for state incentives and assistance for small wind projects. The American Wind Energy Association has a site dedicated to Small Wind (awea.org) with a state breakdown of contact information for Washington Utilities with net metering.