Solar Energy

Solar Energy logo
Solar systems are gaining popularity. With a PV (photovoltaic) system, PUD customers can generate their own clean, renewable energy.

Solar works best on south facing roofs, though east or west oriented low-slope roofs may be suitable as well. There should be little or no shading from trees, buildings, chimneys, or roof gables. Remember, locations with no shading in winter may be shaded by spring and summer foliage, and little trees will grow!

Going solar is a significant decision. As with any major purchase, get multiple bids for your solar system project. You will find the market highly competitive, with multiple solar companies competing for your business. Make sure you’re comparing apples to apples by closely reading the terms from different contractors. Click on the "Learn More" button below to link to how to protect yourself from solar scams and high pressure sales.

To calculate your simple payback for a solar project you are contemplating, download our Solar Payback Calculator tool (MS Excel spreadsheet). Contact Jen Langdon (360-501-9392) with any questions.



Cowlitz PUD does not install solar generation systems, however, you may find a list of solar energy contractors below. This courtesy list isn't an endorsement or recommendation, simply a place to get you started on your research.

If you click on the "Check it Out" button below, you will be linked to a list of current members of the Washington Solar Energy Industries Association, another source for solar energy contractors.
  • Solar equipment is exempt from property taxation.
  • Installing a solar system increases the value of your home without increasing your property taxes.
  • The environmental benefits of renewable energy are immediate and long-term.
  • It encourages sustainable use of our natural resources for future generations.

Incentive Information

No incentives are currently available through Cowlitz PUD for solar systems.

However, to learn about residential federal tax credits, read the Homeowner's Guide to the Federal Tax Credit for Solar located here: https://www.energy.gov/eere/solar/homeowners-guide-federal-tax-credit-solar-photovoltaics.

To learn about Washington State sales tax exemption from the Washington State Department of Revenue, view Sales and use tax exemption on purchases and installation of solar energy systems.