Commercial Solar Energy Contractor

A Green Energy Partner For Green-Focused Businesses Become Energy Progressive

We approach commercial solar holistically. At first, we must understand how your business uses energy; from the ground up. Our building performance specialists will analyze your current consumption through proven building science principles and recommend energy improvements BEFORE going solar. It’s the best, fastest, and most economical way to reduce energy cost!

CALL (408) 779-3333

Business Hours
Monday-Friday 9 AM - 5 PM
Saturday & Sunday Closed

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Home - Commercial Solar

Rated 5-Stars on Google and Yelp out of 150+ Reviews

    
 
 
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   Stephanie R.G. Edelman 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience using Simmitri after a previous company went bankrupt. Simmitri folks were responsive, thoughtful and knowledgeable.
  
 
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   Andrea Goldsmith 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simmitri installed our Enphase solar panels and later our battery system. They did a terrific job.   Our system runs well after three years. They were good to work with. Their office helped us with the California document submission. We are pleased!
  
 
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   David Martinez 
 
 
 
 Trustindex verifies that the original source of the review is Google. After interviewing 3 solar companies I selected Simmiti for my dolar installation. The planning and submissions to PGE and SCCounty Building were done in a timely manner. The installation crew was superb. The inspector was highly impressed with the installation. Ana, my PM, stayed on all parties to get the final steps of approvals. I highly recommend Simmitri for your solar project. 9/12/2025 I just recently added 6 panels to my system (added e-car) and Pamela at Simmitri handled my project. Communication throughout the project was excellent and the crew, once again were FANTASTIC! Simmitri is a pleasure to work with.
  
 
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   Denise Tsang 
 
 
 
 Trustindex verifies that the original source of the review is Google. We can say that installing and working with Simmitri was a seamless experience. They did exactly as they say they would. The staff is amazing to work with, especially the Project Manager Pamela Rodriguez and the Sales Manager Lonnie Cory. The installation crew was fast, clean and friendly. All in all, a great experience working with them from the beginning... and continuing. We are so happy with our new system!
  
 
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   Ben Bartyzel 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simmitri Inc. roofers did an excellent roof replacement for me, they were on time and on budget.  I highly recommend this firm.
  
 
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   Jerry Suarez 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our project began in 2020 with the construction of our new home. When we were ready for our Solar installation, Jonathan walked us through every step of the way. The installation crew were fast, competent, and thorough. We couldn't have asked for a better experience!!
  
 
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   Lanard C 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great company....solar appointment was the best I have seen and very informative ...no pressure and very polite approach focusing on my interests and needs.  System was installed and it was a great experience...
  
 
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   Dylan Nunn 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great experience!
  
 
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   Steve McShane 
 
 
 
 Trustindex verifies that the original source of the review is Google. Wow! The service and attention to detail that Jonathan and his team provides is astounding. We had a complicated project with a complicated team and every question was answered in a timely fashion. Every one of the reviews I read is spot on. Thank you, Simmitri.

Custom Solar Power Systems For The Greater Bay Area

Our passionate approach to greening has proven itself many times over. We work hard so you have the healthiest, most energy-efficient company possible! This is why we use cutting-edge Tier 1 technology, custom-tailored and optimized for your operations. Enjoy clean power, designed and installed properly: with efficiency, comfort, health, and cost-effectiveness in mind.

Smart Energy Storage Across The Bay Area

Provide clean energy for your business on-site, regardless of utility power. Combining our smart, adaptable, and reliable storage solutions with high-performance solar technology gives your business an energy solution that provides consistent value and control. It gives you access to the benefits of solar storage and rooftop solar at a significant scale.

Premium Warranty Coverage

We offer the ONLY 25-year combined power and product warranty backed by the industry’s most financially sound and stable manufacturer! It covers labor, materials, shipping, and product testing. Our team of Energy Advisors is always ready to assist you.

How Commercial Solar Works With Simmitri In Your Corner - Working & Advocating

Step One: In-Depth Consultations

From high-level corporate oversight to our pro team of roof system technicians, energy advisers, operations/install personnel, project management experts, sales consultants, and energy-efficient building performance analysts, we’re passionate about educating and engaging our customers in doing solar properly. Learn more about our Seasoned, Professional Service.

Step Two: Preparation & Planning

Before installing and setting up your custom-designed green energy system, we’ll show you how to improve your company’s energy consumption: upgrading old systems, HVAC improvements, lighting projects, and more. Our goal is a cost-effective transformation of your operations with maximum ROI potential. You can learn more on our Commercial Energy Management page.

Step Three: Step-By-Step Installations

Simmitri is one of the longest-standing and most trusted solar+roofing companies in the Greater Bay Area, Silicon Valley, and Monterey Bay coastal areas. Our technicians are among the most experienced and work step by step to install appropriately-sized and cost-efficient systems. After serving thousands of customers, we’re incredibly detailed in our approach. Learn more about Our Story.

Step Four: Fine-Tuning & Followup

Your project isn’t finished until every aspect of your new system works flawlessly and you see the benefits of greening your business while enjoying the extra cash we free up for you. But even after completion, our relationship doesn’t end. Through warranty coverage, working with you to ensure optimization, and assisting in system management through our mobile app, Simmitri is your long-term solar partner.

Serving The Greater Bay Area, Silicon Valley, & Monterey Bay Coastal Cities

San Jose (Headquarters)
Santa Clara
Morgan Hill
Gilroy
Campbell
And more…

Explore Our Service Areas

Giving Back: Solar For Bay Area Multifamily Affordable Housing (SOMAH)

Get involved in SOMAH with Simmitri! The Solar on Multifamily Affordable Housing (SOMAH) program provides financial incentives to substantially offset the cost of a solar PV system on multifamily affordable housing buildings across California. This program requires most of the system to directly power tenant meters and provides incentives for common area loads.