Whether you own or rent your home, we can help you use energy more wisely, lower your electricity bill, and protect the planet for future generations.

Making smart energy choices for your home is easier than you think! Take advantage of City Light's programs and information about energy efficiency to save money.

DIY Energy Audit

Use this Do-It-Yourself Energy Audit to help you learn more about your home's energy use and find ways to use energy wisely and lower your bills.

Heating and Cooling Solutions

Make smart choices at home with energy-efficient heating and cooling systems. Learn about ductless heat pumps and heat pump water heaters for the most energy-efficient heating systems on the market. Learn more and find discounts too.


Upgrading your windows to high-performance, energy-efficient models will improve the comfort of your home, as well as lower your energy bills. Replacing old windows with ENERGY STAR certified windows can reduce an average home's energy bill by 12% according to the US Department of Energy. 


Insulation is an extremely effective way to reduce your heating costs, keep your home cool in the summer, and improve comfort overall. Insulation works by slowing the loss of heat from your home during colder months and heat gain during warmer months, providing a layer between your house and the outside air. This layer is measured by R-values, which is a measure of heat resistance. The higher the R-value, the better. Air-sealing a home prior to adding insulation provides significant added benefit. To learn more about the process and benefits of air sealing and insulating your home, check out this information developed by the ENERGY STAR program.

Electric Vehicles

Consider driving an EV - it's cost-effective, eco-friendly, and convenient. And City Light makes it easier with affordable, carbon-neutral electricity, and utility owned public fast-charging stations across our service territory. Learn more and find existing and planned City Light public charging stations near you.

Renewable Energy Options

Options for homeowners include:

  • Rooftop Solar. Learn more about going solar and whether it's the right option for you.
  • Green Up renewable energy credits (RECs). City Light customers can help increase renewable energy generation in our region through the purchase of RECs. Learn more and join Green Up today.

You don't have to own your home to make it more comfortable and efficient. Here are a few ways to help you get started.

Tips for Saving Energy and Money

You can save hundreds of dollars each year by:

  • Turning off lights and replacing incandescent bulbs with LED bulbs
  • Programming your thermostat or setting to a lower temperature when you're away or asleep
  • Decreasing your shower time by just a few minutes
  • Unplugging your DVR, stereo, coffee maker, and other electronics when not in use
  • Using a microwave, slow cooker, or toaster oven instead of a larger oven

Renewable Energy Options

Green Up, allows you to purchase renewable energy credits (RECs) to help renewable energy providers stay competitive and grow the renewable energy market in our region. Learn more and join Green Up today.

While we do not provide contractor recommendations or endorsements, we do recommend that you get a minimum of three bids and always check references. Here are a few resources to help you find a contractor for your project:

Hybrid Heat Pump Water Heaters

Hot Water Solutions NW

Energy Star

Home Efficiency Improvement/Heating and Cooling

Comfort Ready Home

Building Performance Institute

Better Built NW

Air Conditioning Contractors of America

Solar Installers

Washington Solar Energy Industries Association