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Rialto
(855) 502-6363
★★★★★ 5.0 — 2,500+ Google Reviews
Expert Solar Installation in Rialto, CA
Harness hot inland summers and start saving with Option One Solar — Inland Empire's trusted solar installer since 1970. With summer temperatures regularly topping 100°F and SCE rates trending upward, Rialto homeowners have every reason to put their rooftop to work generating clean, affordable energy. Residential and commercial solar, battery storage, and full EPC services from a licensed local team.
54+ Years
Experience
2,500+
Installs
5-stars
Rated
Our Services
Solar Solutions We Offer in Rialto
From residential rooftops to commercial ground mounts, we handle every aspect of solar in Rialto.
Residential Solar Installation
Custom-designed rooftop and ground-mounted systems sized to maximize your Rialto home's solar potential. With 278+ days of sunshine per year, your panels work hard every day to significantly reduce your SCE bill.
Commercial Solar Solutions
Scalable installations for Rialto businesses — from small storefronts to large commercial properties. Reduce operating costs, meet sustainability goals, and take advantage of accelerated depreciation and the federal ITC.
Solar Battery Storage
Store excess energy with Tesla Powerwall and commercial BESS systems. Essential backup power for Rialto's hot inland summers and abundant year-round sunshine — ensuring your home or business stays powered when the grid can't keep up.
System Monitoring & Maintenance
Proactive monitoring, routine inspections, and prompt repairs to keep your system running at peak efficiency. Our team understands Inland Empire conditions and is always nearby to keep your investment producing.
Solar Consulting & Design
Detailed site evaluations, shading analysis, and production modeling to guarantee the best performance for your Rialto property. Every design is optimized for Inland Empire's unique sun angle and seasonal conditions.
Full EPC Services
End-to-end engineering, procurement, and construction for commercial projects. We manage permitting with City of Rialto, SCE utility interconnection, inspections, and every detail in between.
Free Consultation
Request a Free Solar Consultation in Rialto
Our Inland Empire-based team provides detailed, no-obligation solar assessments for Rialto homeowners and businesses. We analyze your specific roof, shade conditions, and SCE usage before recommending a single panel.
Detailed property and shading assessment
Custom system design with production estimates
Transparent pricing with financing options
Federal tax credit and incentive guidance
No obligation — no pressure
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(855) 502-6363
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Our Community
Option One Solar & the Rialto Community
When Rialto homeowners and business owners choose solar, they deserve a contractor who understands their community — not a national franchise operating from a call center three states away. Option One Solar has served Inland Empire for over five decades, and we bring that local knowledge to every project we take on in Rialto. Rialto's central Inland Empire location and strong utility rate growth make solar returns especially compelling here. We understand the local climate, the SCE rate structure, and the City of Rialto permitting process — all of which directly impact how we design and install your system. That local expertise means fewer surprises, smoother permitting, and a system that performs as promised. Our C-10 and C-46 licensed team handles every phase of your project, from initial consultation through design, installation, and interconnection with SCE. And because we stand behind every installation with a 25-year warranty, we're always just a call away when you need us.
How It Works
How Going Solar Works in Rialto
We've simplified the solar journey for Rialto homeowners and businesses into four clear, manageable steps.
Free Site Assessment & Energy Review
We start by reviewing your Rialto property and SCE energy bills together. Our team evaluates your roof condition, orientation, and any shading from nearby structures, then combines that with your actual monthly usage — so every recommendation we make is grounded in real data for your specific situation.
Custom System Design for Rialto
Using your site data and the Inland Empire's year-round sunshine, our engineers design a system sized and positioned specifically for your property. We model annual production estimates, calculate your payback period, and present a fully transparent proposal with no surprises and no pressure.
Permits, Installation & SCE Interconnection
Our licensed C-10 and C-46 crews handle every detail — pulling permits with City of Rialto, scheduling inspections, installing your system to code, and filing your SCE interconnection agreement. You stay informed at every milestone without managing any of it yourself.
System Activation & Ongoing Local Support
Once SCE approves your interconnection, we commission your system and walk you through monitoring your production in real time. Our team remains your local resource for any questions, maintenance, or service needs for the full life of your installation, backed by a 25-year warranty.
Why Choose Us
Why Rialto Homeowners Choose Option One Solar
Choosing the right solar contractor in Rialto is a 25-year decision. Here's why thousands have chosen us.
54+ Years of Experience
Founded in 1970, Option One Solar brings over five decades of expertise to every Rialto project. Three generations of experience means your installation is in proven, capable hands.
C-10 & C-46 Licensed
We hold both California C-10 (Electrical) and C-46 (Solar) contractor licenses — the dual credentials required to handle any solar project in Rialto, residential or commercial.
25-Year Warranty
Every Rialto installation is backed by our comprehensive 25-year warranty covering equipment, workmanship, and system performance. Your investment is protected for decades.
Local Inland Empire Experts
Our crews and project managers work throughout Inland Empire every day. We understand the local climate, SCE rate structures, and City of Rialto permitting process inside and out.
5-Star Rated
With over 2,500 five-star reviews from homeowners and businesses across Southern California, our track record speaks clearly. Rialto customers consistently rate us at the top of the industry.
Flexible Financing
We offer solar loans, leases, and power purchase agreements to fit any budget. Our team will identify the financing structure that maximizes your savings from day one in Rialto.
FAQ
Frequently Asked Solar Questions in Rialto
Everything Rialto residents want to know before making the switch to solar energy.
Service Areas
Also Serving Nearby Communities
In addition to Apple Valley, Option One Solar proudly serves homes and businesses throughout the High Desert and Inland Empire.
Get Started
Ready to go Solar in Rialto?
Take the first step toward energy independence. Whether you are protecting your home from rising SCE rates or powering your business with clean energy, our Rialto team is ready to help.