Skip to content
Taking CallsSolar Companies in Seattle, Washington

Sphere Solar Energy

Taking Calls in Seattle Today 4.80 (72 reviews)(206) 362-3780

Sphere Solar Energy

Sphere Solar Energy is Seattle-based and was founded in 2015. It designs and installs custom solar, EV charging and battery storage solutions for clients across Washington State. Its projects range from residential work to large commercial and governmental sites, including schools and nonprofits.

Business Highlights
  • It is a minority-owned business enterprise and union-signatory electrical contractor.
  • It reports more than 4 megawatts of installed solar capacity.
  • It donates 10% of its profits to Sphere One.
  • It lists a 25-year manufacturer warranty for solar panels and microinverters.
  • It backs its service and workmanship with a 10-year warranty.
  • It is a certified installer for Tesla Powerwall and Outback Power.

Service Area

Washington State.

Local Business Taking Calls

Sphere Solar Energy is one of 5 solar companies ProsGrade lists in Seattle, Washington.

Taking Calls
Taking calls through ProsGrade
Listing details

7 services listed, including Commercial solar, Ground-mounted systems and Battery storage. Open weekdays, closed on weekends. Rated 4.8 from 72 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Sphere Solar Energy compares with the other 4 solar companies on ProsGrade in Seattle, using public Google ratings and review counts.

  • Rated 4.8 on Google, at or above the 4.8 average of other Seattle solar companies on ProsGrade.
  • One of 5 Seattle solar companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

7 services
  • Commercial solarCustom arrays tailored to roof, budget and aesthetic preferences.
  • Ground-mounted systemsProperty-sized designs with durable materials for extreme weather.
  • Battery storageMost often Enphase; also Tesla Powerwall and Outback Power.
  • System monitoringEnphase Enlighten access for tracking system energy production.
  • EV chargingCharging stations for homes and commercial buildings.
  • ConsultingFeasibility studies, performance modeling, cost estimates, grant assistance and microgrid modeling.
  • EngineeringElectrical design and engineering for constructability, energy performance and maintenance.

Reviews

What customers say

Customers describe one-on-one explanations and guidance through the installation process. One customer reported inspection back-and-forth that meant missing some prime days of sunlight, but said the team worked through it and kept them in the loop; the system was up and running.

Customer Reviews

Tim Thomas

If you are looking for solar power for your home or business look no further sphere solar energy is the best choice in the northwest, they are awesome! A HUGE thank you to Sphere Solar Energy for all of there help with our solar project. Their team of professionals connected with us one-on-one to make sure we understood the entire process. This project could not have happened without their efforts and expertise. Sphere Solar Energy educated us on the benefits of clean energy and how the whole solar power system works. Without Sphere Solar Energy, our goal to lower our carbon footprint and become a leader for community based organizations in Pierce County could not be realized. Thank you Mr. Edwin Wanji and staff Oasis of Hope Center 1937 S. G st. Tacoma WA, 98405
View full reviewShow less

Adam Powers

The solar system installation process was an unbelievable experience. Sphere Solar and Edwin Wanji went above and beyond on our project. We asked for their help developing a solar microgrid for an urban farm. The system that Sphere Solar put down was beyond our expectations. Not only did the whole team help walk us through the process of installation, but they also worked with enthusiasm. We plan to energize the farm through the solar energy and storage system. Our goal is to use the energy to power some low-energy equipment such as the water irrigation system fans for a greenhouse which includes our automated robotic gardener, called the FarmBot. Edwin Wanji, the owner of the company came down himself and he not only installed quality equipment and gear, but also helped teach our community about how it works. Providing so much more than a system, Edwin provided solar education to our community. Edwin taught that the system components were sourced locally in the US. Our solar system was made up of six, 480 watts solar panels and came from the company Hawah Q which is US-based. We learned that the inverter is a solar arc inverter that comes from a veteran-owned and operated US-based company. The battery, which is a home grid system, was also US sourced. We value locally sourced equipment providers who are integral to the work that we do. We seek to create a local economy and support our local manufacturers. As an urban garden, this also matches what we seek to do in our operations of getting communities to be more sustainable. We want communities to understand their own power and that means their power to grow food and the power to energize their lights. We were even able to throw a big event at the garden where all the musicians and vendors utilized the energy from our new solar system. So we no longer had to use any gas generators and there were no loud engines going during our event. Thank you Sphere Solar and thank you so much Edwin Wanji for your work on this project. We’re excited to work with you again on our next solar installation.
View full reviewShow less

Mark Franklin

Edwin, Nigel, Peter, and the team each conducted themselves and their work in a professionally and polite manner. We did have some back and forth with inspections but Edwin and the team were right there to work through it, keeping us in the loop. My rating if I could set it would be more like a 4.5 with that .5 just because of the back and forth with inspections. We ended up missing some prime days of sun light due to it. The inspector was asking for things the team had never seen before but made sense. Example: chicken wire under the panels so kids don't play with the cables, which where zipped tied to the panels and ground mount. Either way our system is up and running and I couldn't be happier with the results. Even on a good fall day we produce much more than we consume. Almost 10kwh more a day. Will definitely reach back out to Edwin and the team in the future when we look to get an electric vehicle charger installed and potentially iron flow or liquid metal battery backup. If they become available for residential use.
View full reviewShow less

Chris Whalley

My family and I selected Sphere Solar Energy to design, install, and support a 10kW rooftop solar energy system for our North Seattle home. Sphere is hands down the best residential contractor I have ever worked with in any trade, and I have worked with a variety of contractors across Washington state and Montana. Edwin and his team understand the local, state, and federal incentives and building codes that apply to solar energy systems, their system design and component selection is excellent, their estimates of costs and savings are accurate, and their system installation is timely and of high quality. Additionally, their logistics and project management are very high quality and they proactively manage their projects across each phase of the process. Sphere has been extremely responsive to our requests for system support and every employee we encountered, particularly our project manager Wendy and lead installer Gene, were very knowledgeable and able to work through the issues that inevitably come up during any project. Now that our system has been up and running, my family and I are very satisfied with the system's performance and we can't recommend Sphere highly enough. Thanks very much to Edwin, Wendy and the whole crew at Sphere Solar Energy!
View full reviewShow less

Pat Riley

An average home uses about 12,000kwh annually. But our all-electric home is using over 21,000kwh per year, and the cost just keeps going up. We've replaced our heat-pump, water heater, re-sealed our ducts and re-insulated, but our electric bill still keeps going up. Fortunately our state actually encourages the production of green energy through "production" incentives. Federal tax laws also supports green energy productions in the form of tax credits. Sphere Solar designed a system for us to maximize the incentives while lowering our electric bill. In just two months we've already produced nearly 4,000kwh, and we've "banked" (net metering) nearly 2,000kwh. We've already offset 3.3 tons of greenhouse gas emissions with clean green energy. We expect the system will actually pay for itself in 7.5 years, even with the power rates going up each year. Its hard to describe how satisfying it is to watch your power meter spin backwards. We are very happy with the system and highly recommend Sphere Solar if you or someone you know is considering a solar system - Pat Riley, University Place, WA.
View full reviewShow less

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

We'll email you a link to confirm your review. It's only sent in once you click it.

Frequently Asked Questions

Can Sphere Solar help arrange financing for a commercial solar project?

It can help arrange a project loan for an organization investing in a commercial-scale solar array.

What roof factors can affect a Sphere Solar installation?

Roof direction and tree shading can affect solar-panel efficacy. Sphere Solar can provide panels for homes under many circumstances.