Our Purpose
WestLight Energy is on a clean energy mission
Our mission is to provide competitively priced, greenhouse gas-free electricity options to San Mateo County and Los Banos. Through renewable energy procurement and innovation, we’re accelerating the transition to a cleaner electric grid, reduce reliance on fossil fuels, and combat climate change. This vision drives every decision we make, from investing in new energy storage projects to securing 100% renewable energy for our community.
900 MW
new renewables since 2016
500 MW
battery storage contracted
77%
expected hourly matching in 2027 from existing contracts
0 lbs per MWh
portfolio emissions in 2024
Energy Portfolio
A balanced mix to serve our homes & businesses
Think of our energy mix like a balanced meal—each ingredient plays an important role. We combine clean sources like wind, solar, hydro, geothermal, and storage to create a reliable and sustainable energy portfolio for our customers. This thoughtful blend helps keep energy rates stable while reducing fossil fuel pollution.
Energy Content
What's in my electricity mix?
Take a closer look at the energy sources in your electricity mix. Like an ingredients label on a food package, our Power Content Label shows the energy sources in each electricity product. Whether it’s the balanced blend of ECOplus or the 100% renewable ECO100, it helps you understand the impact of your electricity choices.
Energy Sources
How we select clean energy sources
We’re committed to sourcing clean electricity that helps keep rates stable, cuts greenhouse gas emissions, and supports California’s economy. To do this, we partner to develop new renewable energy projects, bringing more solar, wind, and other clean energy resources online. Our trusted partners help us provide cleaner electricity that’s better for the planet and our communities.
Around the Clock
Our commitment to 100% clean power, every hour
We have a mighty goal: Build a future where 100% renewable electricity is available every hour of every day. Achieving this objective requires reshaping the energy system so renewable electricity is available to meet demand around the clock. This change won’t happen overnight, and we can’t do it alone. Although WestLight Energy represents only 1.5% of California’s electricity load, we’re driving meaningful change by using our buying power, pushing for policy changes, and building partnerships with other Community Choice Aggregators and renewable developers. Together, we’re helping transform the energy system and accelerate a 24/7 fossil fuel-free future—balancing affordability with progress for our community.
Local Resources
Deeper decarbonization with distributed energy
WestLight Energy is committed to decarbonization by helping develop 20 MW of new local renewable energy through rooftop and carport solar, along with distributed energy resources like batteries and electric vehicles. Virtual power plants, which are made up of collections of these resources, have the potential to lower costs, increase resiliency, and give customers more control over their energy usage. Learn more about our efforts to bring virtual power plants (VPPs) to San Mateo County and Los Banos.
Powering Our Community
Building a healthier future together
Our energy projects are about more than clean power—they’re investments in our community’s future. By supporting new projects that supply the western grid, we’re creating jobs, reducing emissions, and building a more resilient, sustainable energy future for everyone. Read about what we’ve accomplished over the years.
Procurement Solicitations
Partner with us
WestLight Energy partners with renewable energy developers and project owners to secure sustainable power that supports our community’s needs and environmental goals. Through open solicitations and bilateral engagements, we invite developers to contribute to our mission by providing innovative, clean energy solutions.
We also partner with member agencies to offer grants and loans for smaller-scale projects within our service area.
Newsletter
Keeping up with WestLight Energy
Would you like to stay informed about WestLight Energy’s efforts to bring clean, affordable electricity to our community?
