TENCO SOLAR delivers full-service commercial solar EPC solutions across California—spanning rooftop and carport installations and battery energy storage—backed by 30+ years of expertise. Businesses can cut energy costs, boost resilience, and leverage incentives that may cover up to 50% of system costs, while benefiting from expert design, engineering, installation, activation, and monitoring. The streamlined process starts with a free energy assessment and site survey, advances through engineering and construction with premium, warrantied components, and culminates in activation and ongoing performance support. As a single point of accountability, TENCO SOLAR provides industry-best workmanship warranties and proven results for organizations of all sizes.
TENCO SOLAR is a commercial solar installer (EPC) and full-service commercial solar EPC that offers a comprehensive range of systems tailored to the unique needs of your business. As a commercial solar installer California companies trust, our services are available anywhere in California and include:
Whether it’s integrating solar power into new construction projects or retrofitting existing buildings, we have the expertise to design and install a solar system that maximizes energy generation and savings. Our commercial rooftop solar installation process is streamlined to reduce downtime and maximize value.
Our solar carports provide shade for vehicles and generate clean energy. Benefit from reduced electricity costs while providing an eco-friendly amenity for employees and customers at your commercial property. Designed by seasoned commercial solar installers, these structures integrate seamlessly with existing sites, including DSA sites.
Ensure continuous operation during outages, reduce peak charges, and take advantage of net metering with a custom solar plus storage solution.
California businesses may qualify for tax credits that cover up to 50% of the total cost of their solar system. Combined with utility bill cost savings, tax credits are a critical component in evaluating the total lifetime costs and ROI of a commercial solar system for businesses comparing commercial solar companies. But you need to act quickly, as these incentives are going away soon.
Many businesses in California can qualify for an additional 10% tax credit for being part of an energy community.*
We utilize domestically sourced materials to help our systems qualify for an additional 10% bonus tax credit.*
We analyze your current energy usage and design a system that meets your specific space and energy usage needs. As part of this assessment, we will also evaluate whether a utility rate switch may be right for your business and determine what federal, state, and local tax incentives could offset the cost of your solar installation.
After we analyze your energy usage, our commercial solar design team will create a customized system that offsets your energy usage, taking into account time of use, seasonality, and specific utility rates to save you money on your electric bill. Before contract signing, we will survey the proposed installation site to ensure that we fully understand the scope of work and can prepare for a smooth installation. Following the site inspection and contract execution, we will begin ordering all of the supplies for your project (to help with safe harbor) and begin the engineering process.
Once our solar engineers have completed their examinations and assessments, we’ll develop the blueprints and finalize a comprehensive installation plan. This plan will cover the components to be used, installation procedures, and other factors required to complete the installation. We work closely with each client to tailor the installation plan to create minimal disruption to your business. During construction, we maintain strict quality controls and adhere to well-established protocols, allowing our team to work quickly and provide the highest quality throughout the process.
Once construction is complete, we will thoroughly examine and test your system to ensure all components and functions are performing up to standards. After the system is inspected, it will be activated and we will assist you in monitoring your system to ensure it continues to perform at optimum capacity over the life of the system. Activation is not the end of your relationship with TENCO SOLAR, it is only the beginning.
We partner with leading commercial solar panel brands like Canadian Solar, SolarEdge, Socomec Group, Enel X, and Solar Insure to make sure the solar products we install are of the highest quality and include a robust warranty. This guarantees the reliability and longevity of your commercial solar system.
We've installed over 40 million KW's across various types of buildings in California including Multi-Family Housing, Hospitality, Places of Worship, Manufacturing, Office Buildings, and more. We install across the state including Northern California, Southern California, and San Diego.
TENCO SOLAR was able to assist Quality Grinding offset rising utility costs, maximize net energy gains, and meet the needs of future energy consumption with the installation of a roof-mounted ballasted system. Quality Grinding aaves an estimated $40,000+ a tear on energy costs.
When comparing commercial solar companies, our approach is simple: Large enough to deliver, small enough to care. We strive to always do right by our customers, even when no one is watching. Our dedication to integrity combined with decades of technical expertise, ensures a flawless execution, no matter the scope of your solar project.
We've installed over 40,000,000 watts of solar throughout California. Solar design, installation, and maintenance is all we do! We're recognized among top commercial solar installers in California.
With a full in-house staff for design, procurement, and installation, you will work only with TENCO SOLAR throughout the process of purchasing and installing your solar system. This single point of accountability sets us apart from many commercial solar installation companies. California C10 & C46 licensed.
Industry Best Warranty: We back our installations with a 10-year workmanship warranty. Plus, we take the time to understand each customer’s unique needs and design the best system for you using premium products.
We know time is of the essence when it comes to maximizing energy efficiency at your business. When you trust our team, you can expect a prompt proposal within 72 hours to get your project moving swiftly. Our proposal includes a comprehensive review your past energy usage, detailed breakdown of Solar costs and a 20-year annual energy production report, so you know what to expect out of your system over its lifetime.
Frequently Asked Questions about commercial solar installation
Yes of course you can install solar panels on commercial properties. We recommend asking the following questions to determine if your property is a good fit for solar:
The process for most businesses takes about 4-6 months from contract to PTO. Factors that influence project time includes the complexity of the system, multiple buildings, permitting and utility approvals. Our interconnection applications (permission from the utility to hook up solar) are best in class, often being approved on the first pass.
Yes, there are federal tax incentives available in 2026 to every business owner in California through the federal Investment Tax Credit (ITC). They are still available in 2026, but you need to act fast! Contact us to learn how to take advantage of the credits before they are gone.
It depends on the structure. We’ll bring in an architect and, at times, a structural engineer to perform a thorough assessment during the design process to confirm whether additional support is required
Our team can install solar panels on practically any building in California. Our solar panels are well-suited for commercial, industrial, retail, and agricultural structures.
Absolutely! It’s our pleasure to help our clients maintain their commercial solar panel systems in California. When we install a commercial system, we discuss long-term maintenance needs with our clients and develop comprehensive maintenance plans designed to keep the system operating at its best.
At TENCO SOLAR, we can confidently say that you will save money if you invest in solar, but the amount you save will depend on many factors, including the size of your and the amount of sun that your property gets. Contact our team today for a solar proposal for your property that will include estimated savings customized for you.
Yes. Dirty solar panels can reduce energy production by up to 35%. Schedule annual care with our team to maximize the return on your investment. For more detailed information, follow our solar panel cleaning guide here.
We recommend scheduling preventative care for your solar panels at least once a year.
You can expect your commercial solar panels to last 25 to 30 years with routine, professional maintenance and prompt repair when necessary.
