
Costco, the membership retail giant, has partnered with various solar electric companies over the years. One of the most well-known partnerships is with Sunrun, a California-based company that offers residential solar installations. Costco members can take advantage of special benefits and 'full-service' solar installations through this partnership. Additionally, Costco has also worked with Trinity Structures to design, construct, and activate off-grid rooftop solar systems for its warehouse in Mira Loma, California. Other companies that Costco has been associated with in the solar space include Grape Solar, which offers solar kits through Costco, and Tesla Energy (formerly SolarCity).
| Characteristics | Values |
|---|---|
| Name of the solar electric company that Costco partners with | Sunrun |
| Location of Sunrun | California |
| Type of company | One of the largest residential solar companies in the US |
| Area of operation | 21 states across the US, primarily in the Northeast and Southwest |
| Benefits of Sunrun-Costco partnership | Costco cash card, enhanced 15-year roof penetration warranty, access to Costco Member Service Hotline |
| Other companies that Costco has contracted with for solar electrification | Trinity Structures, Grape Solar |
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What You'll Learn

Sunrun and Costco's advertising materials
Costco members who opt for Sunrun's solar panel systems are eligible for special benefits, including Costco cash and an enhanced roof warranty. The Costco cash card is worth 10% of the solar equipment costs before taxes. This benefit is only applicable if the member owns their system, and not if they opt for a solar lease or power purchase agreement (PPA) with Sunrun.
Sunrun is one of the largest residential solar companies in the country, installing solar in 21 states, primarily in the Northeast and Southwest. In 2017, they beat out Tesla Energy and installed the most residential solar systems in the United States.
While larger companies like Sunrun may not always offer the best prices or personalized customer service, they do have recognized brand names and meaningful warranties. Sunrun's partnership with Costco can thus provide members with reliable and beneficial options for solar panel installation.
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Sunrun customer agreement
Costco, in partnership with Sunrun, offers solar systems to its customers. Sunrun is a solar and storage company that provides solar systems to residential customers.
Sunrun has a customer agreement in place, which is a contract between the company and its customers. This agreement outlines the terms and conditions of the services provided by Sunrun. The customer agreement includes details such as the scope of work, payment terms, warranties, and maintenance.
The agreement covers the design, engineering, procurement, construction, installation, testing, commissioning, and startup of the solar facility. It also includes a monitoring and communication device that allows both the customer and Sunrun to view the production data through a customer app. Sunrun collects this data every six hours and evaluates it daily to ensure the system is functioning as promised.
Sunrun's customer agreement also includes a 25-year warranty on their solar systems, which covers free maintenance and repairs. The company provides a dedicated team of experts to assist customers with any questions or concerns throughout the installation process and beyond. This team includes local specialists who work directly with the install team and building inspectors to manage on-site work.
Additionally, Sunrun offers a customer referral program with specific terms and conditions. This program allows existing customers to refer potential new customers to Sunrun and receive rewards. The referral program has eligibility requirements, including having a fully executed customer agreement and meeting payment obligations.
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Sunrun's workmanship warranty
Costco has partnered with Sunrun to offer solar services to its customers. Sunrun is a reputable company that offers a range of warranties to protect customers' investments in solar energy.
The warranty includes protection against leaks or holes in the roof, ensuring that any damage caused by the installation of the solar panels will be addressed and fixed at no additional cost to the customer. This warranty provides peace of mind, especially for those who are concerned about potential damage to their roofs during the installation process.
In addition to the workmanship warranty, Sunrun also offers a comprehensive solar panel warranty. This warranty has two parts: product/equipment warranties and a performance guarantee. The equipment warranty covers the physical panels, including any manufacturing defects, durability issues, or equipment failure. If a panel is faulty or damaged, Sunrun will replace it with a new working one. Equipment warranties typically last between 10 and 15 years, but some premium panels have warranties of up to 25 years. The performance guarantee ensures that the solar system performs as expected and covers any necessary maintenance or repairs to keep the system operating optimally.
Sunrun's warranties provide customers with confidence in their solar investment. With coverage for both the panels themselves and the workmanship involved in the installation, customers can rest assured that they are protected from unexpected costs or issues. Sunrun's warranties are a testament to the company's commitment to providing reliable and durable solar energy solutions.
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Costco's climate action plan
Costco has partnered with Sunrun, one of the largest residential solar companies in the country, to offer their members special benefits when they go solar. Costco members who opt for solar installations from Sunrun receive a Costco cash card worth 10 percent of their solar equipment costs (before taxes). Additionally, they also get an enhanced 15-year roof penetration warranty from Sunrun, which is separate from the standard 10-year warranty offered by the company.
While Sunrun is a reputable company, some customers have expressed dissatisfaction with their services when partnered with Costco. One customer reported that Sunrun left electrical wiring exposed for months, leading to intervention from the city permitting office. Another customer mentioned that they had to get a new roof and electrical panel for the installation, which significantly increased their overall costs.
Costco has also been associated with Grape Solar, a relatively new company that imports solar panels from China. Grape Solar offers a range of solar kits, including panels with a 10-year parts warranty and a 25-year production guarantee. Their products have passed all the necessary quality and safety checks, and buyers have reported high satisfaction with the quality and performance of their panels.
In terms of Costco's climate action plan, the company has demonstrated a commitment to sustainability by investing in off-grid solar electrification structures. For example, they partnered with Trinity Structures to design, construct, and activate an off-grid rooftop solar system to charge electric trucks at their 1-million-square-foot distribution center. This initiative is expected to produce about 100 MWh of carbon-free energy annually, offsetting 3 million metric tons of carbon dioxide each year.
Overall, Costco's partnerships with solar companies like Sunrun and Grape Solar, along with their adoption of off-grid solar solutions, reflect a step towards a more sustainable future. These initiatives not only benefit the environment but also provide Costco members with access to renewable energy solutions and potential cost savings.
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Grape Solar Kit
Costco, in partnership with Sunrun, offers solar panel installations for its customers. However, some customers have reported unsatisfactory experiences with the company.
If you're looking for an alternative solar kit provider, Grape Solar offers kits, panels, racking, cables, and accessories for solar installations. They also provide portable power options and products for both grid-tied and off-grid systems.
Grape Solar's website provides calculators for both grid-tied and off-grid systems to help customers determine their power requirements and the appropriate system for their needs. The company also offers commercial and industrial products, and customers can request quotes for these products via the website.
While Grape Solar provides a range of products and resources, it is always important to research and compare different companies before making a decision. Solar installations can be a significant investment, so ensuring you have the necessary information and understanding of the company's offerings is crucial.
Additionally, as with any electrical work, it is essential to consult with a certified electrician to ensure safe and proper installation.
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Frequently asked questions
Costco has a partnership with Sunrun, one of the largest residential solar companies in the US.
Costco members can access special benefits, including 'full-service' solar installations with financing and installation included.
Sunrun offers a recognised brand name and meaningful warranties. However, larger companies like Sunrun are not always the cheapest option and are not known for their personalised customer service.
Yes, Costco has also partnered with Grape Solar, which offers solar kits, and Trinity Structures, which designed and constructed an off-grid rooftop solar system for a Costco warehouse in California.
























