In The Media

Our Mission

We deliver clean energy solutions that strengthen community resilience, environmental stewardship, and equitable inclusion across all of our projects and programs.

Leading through expert craftsmanship, workforce education, and strategic project development services, we guide the transition to solar energy, battery storage, and transportation electrification.


    Connect with our trusted advisors to start your FREE clean energy project proposal today. We look forward to working with you!

    Once installed, these industry-leading panels are backed by a 25-year equipment warranty and our 10-year workmanship warranty.

    Get a Free Quote

What Our Clients Think

Luca Cazzanti

Sphere Solar was outstanding throughout the entire project to install a solar system for my single-family home. The initial estimate of my energy needs was spot on and Edwin and team were quick to respond to my follow on questions until settled on a configuration. Installation was seamless, clean and professional. My first electric bill since installation was $0 and had credits accumulated with the power company. I highly recommend Sphere

Bryan Reynolds

Working with Sphere was amazing! Eddie was super helpful getting a plan in place and making sure we had everything we needed for the project to fit our house. The crew was super attentive, clean and professional the whole way through. We never has any worries about safety or effectiveness. Top quality materials the whole way through. The electrical inspector even commented on how good the install was!

Rick Lippold

I had a very positive experience working with Sphere Solar.
Regarding the contract they did what they said they would do for the price quoted. The work appeared to me to be quality and the solar array has been functioning with no issues.
I enjoyed working with the Solar office staff of Mia and Maria, they were helpful, responsive, and friendly. I also enjoyed working with the installation crew, especially electrician Peter who was not bothered by my many questions.
My impression is that Sphere Solar has a higher goal than just making a profit, but rather doing the right thing by providing a service of installing solar to the benefit of our home planet.

Wes Eckhart

I contacted Edwin about getting solar and back-up batteries installed on our Kirkland house. We went with an Enphase 10.2kW PV system backed up by two Enphase batteries providing 21 kWh of capacity. The team at Sphere were very responsive to our questions, and everything from bid to install to final inspection went smoothly. I really appreciated the expertise and customer support from Sphere. I highly recommend them to anyone who wants to make the move to solar!
  • Premium Solar, Storage, and Electric Vehicle Supply Equipment

    We use Tier 1 solar modules, battery energy storage solutions, and EV charging stations designed to maximize energy performance while offering decades long warranties.

  • Clean Energy & Resilience Experts

    Sphere Solar Energy is a minority-owned business enterprise and union-signatory electrical contractor. With over 4 megawatts of installed solar capacity, we specialize in clean energy and resilience projects through design, installation, and performance. Our projects range from residential to large commercial and governmental, including schools, non-profit and faith-based organizations.

  • Community

    Through our community programs, we put our values into action. Specializing in project development and program management that prioritize greater inclusion, we engage BIPOC and historically disadvantaged communities to participate in the clean energy transition. Our commitment to equity drives our job pathways program and community outreach, offering education that inspires excitement about energy resilience. We believe that collaboration maximizes resources and impact, so we work with schools, nonprofits, utilities, tribes, and local governments on a broad spectrum of strategic initiatives.

10% of All Profits Are Donated to Sphere One

The founder of Sphere Solar Energy, Edwin Wanji, grew up in Kenya and saw first-hand how clean energy technology can drastically increase the prospects of marginalized communities. He started Sphere Solar Energy in order to give back to these communities. And he is committed to elevating their voices so that they are not only passive beneficiaries of the clean energy revolution, but also key contributors to its growth.

Sphere Solar Energy has executed four international projects since 2015.

Going forward, we will divide our resources between local projects and international projects that empower marginalized communities. All charitable work will be managed by Sphere One.

Join the Movement

Find Out How
Much it Will Cost Answer a few simple questions to see. It only takes 2 minutes.

1. What is Your Address? Please enter the address for the residence or business where you would like the solar panels to be installed.
2. Who is your utility provider? Please select your current provider from the dropdown
3. ON AVERAGE, HOW MUCH IS YOUR MONTHLY ENERGY BILL? Please select the approximate range of your monthly energy costs from the dropdown
4. How many square feet is your home?Please select the nearest square footage range from the dropdown
5. How old is your roof?Please select the approximate age range from the dropdown
6. What type of roof do you have?Please select your roof material from the dropdown. Hover over the ? for examples
7. HOW STEEP IS YOUR ROOF?Please selece your roof slope from the dropdown. Hover over the ? for examples

Frequently Asked Questions

Costs can vary anywhere between $20,000 - $40,000. This depends on a wide range of variables such as the size of your system, your energy requirements, the type of roof you have, and others. Contact us for a free and detailed estimate for your home.

You can claim a 30% federal tax credit for the next ten years.

Additionally, Washington State allows you to purchase with zero sales tax during 2022.

Net metering, provided by your state utility provider, offers the ability to sell any unused solar energy back to your utility provider at their same rate.

General factors that affect the efficacy of solar panels for your roof include direction (south-facing is best) and tree shading, but we can provide solar panels for homes under many circumstances. The best way to evaluate if you are a good candidate for solar panels is to contact us for a free quote.

The conditions that make our summers so enjoyable – long days and sunny weather – also lend themselves well to solar energy. In terms of annual solar production in the Northwest and parts of Northern California, 60% is usually generated during summer months, while about 20% is collected in the winter. Washington is not quite Arizona, though solar potential in this corner of the country is surprisingly strong, and the same goes for Northern California. And if you need any further encouragement, look at Germany – the top ranked country in solar energy output despite the fact that it usually receives less sunlight than Western Washington.

Our solar panels and microinverters come with a 25-year manufacturer warranty.

We also back up our service and workmanship with a 10-year warranty.

Monitor Your Solar Usage 24/7

Included with every installed system is a software program that allows end users to monitor on-site energy production and consumption. And if you wish to add further value, we can connect your solar array to a battery storage system or an electric car charging station.

Get a Free Quote Today

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