Solar Optimum
EnergySage Installer of the Year serving Riverside from their Inland Empire office
18+
Years in Business
150
Customer Reviews
62 mi
Service Area
201-500
Employees
SurgePV Score
About Solar Optimum
Solar Optimum is a leading California solar installation company with an Inland Empire office at 4199 Flat Rock Drive, Building 100, Riverside, CA 92505. The company was named the 2024 and 2025 EnergySage Installer of the Year, recognizing its commitment to quality installations and customer satisfaction across the state.
Solar Optimum provides residential and commercial solar panel systems, battery storage solutions, and EV charger installations. The company operates multiple offices across California, including its Riverside/Inland Empire location, and serves communities throughout the region including San Bernardino, Ontario, Rancho Cucamonga, and Corona.
The company operates Monday through Friday from 8 AM to 6 PM and Saturdays from 9 AM to 6 PM. Solar Optimum offers free consultations and handles the entire installation process from design and engineering through permitting, installation, and utility interconnection. The company has built a strong reputation through its EnergySage marketplace presence and consistent customer review scores.
Service Area
Solar Optimum serves the following areas within a 62-mile radius:
Contact Information
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Services Offered
Partner Manufacturers
Warranty Coverage
25 years
12 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
City inspection and utility interconnection approval
Go Live
Utility grants PTO, system goes live
Customer Reviews
4.5
150 reviews
Anthony R.
Solar Optimum was named Installer of the Year for good reason. Their team was professional, the equipment was top quality, and the installation was flawless.
Christine L.
We chose Solar Optimum based on their EnergySage awards and they delivered. Great communication, competitive pricing, and our system is exceeding production estimates.
Robert D.
Professional installation and good equipment. The process took a bit longer than expected due to permitting, but the end result is a high-performing solar system.
Frequently Asked Questions About Solar Optimum
What services does Solar Optimum offer?
Solar Optimum offers Solar Installation, Battery Storage, EV Charging.
Is Solar Optimum NABCEP certified?
Solar Optimum holds the following certifications: None listed. Contact them directly for the latest accreditation details.
What areas does Solar Optimum serve?
Solar Optimum serves Riverside, San Bernardino, Ontario, Rancho Cucamonga, Corona. They are based in Riverside with a service radius of 100 km.
What warranty does Solar Optimum offer?
Solar Optimum offers 25-year panel warranty, 12-year inverter warranty, and 10-year installation/workmanship warranty.
How are Solar Optimum's customer reviews?
Solar Optimum has a 4.5/5 rating based on 150 customer reviews. Customers consistently rate them highly.
How long has Solar Optimum been in business?
Solar Optimum was founded in 2008 and has been in business for 18 years. They are one of the more experienced solar installers in their area.
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