See what a solar system costs installed in Irvine, sized from your power bill. Free, instant, no sign-up.
Updated · installer rankings recalculated
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| System | Installed cost |
|---|
Sunrun Solar
4.7 · 195 reviews · Free quote
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Elevation
4.9 · 100 reviews · Free quote
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Orange County Solar Installation
4.7 · 71 reviews · Free quote
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An estimate, not a quote. Based on $2.14–$2.90 per watt installed in California and 1,677 kWh per kW a year in California. Installers confirm the final price after a roof check.
Ranked by TrustAnalytica from verified reviews · see the full Top 10 list →
Sunrun Solar specializes in providing customized residential solar energy systems designed to help homeowners reduce reliance on utility companies. Their team supports customers throughout the entire process, offering clear explanations and flexible solar plans. While many appreciate their knowledgeable and patient service, a few have noted issues with installation accuracy and follow-up.
Elevation specializes in whole-home energy solutions with a focus on solar power and energy efficiency, backed by Energy Star Certification and a lifetime warranty on their solar equipment. Their integrated team guides customers through the entire process, and many appreciate the clear communication and helpful explanations, especially when learning to use their Curb energy monitoring technology.
Known for responsive communication throughout the solar installation process, Orange County Solar Installation offers design, permitting, financing, and panel setup services. Customers appreciate the team’s willingness to address questions and adjust plans, though some note delays with permits and occasional follow-up challenges after installation.
Known for offering complimentary consultations that tailor solar and energy storage systems to fit both budget and efficiency needs, SunSolar U.S. provides design, installation, and ongoing system monitoring. Customers appreciate the team’s clear communication, professionalism, and willingness to explain each step, though some note the process requires patience.
Sun Synergy Consulting is a SunPower Authorized Company that helps homeowners explore solar options with clear, upfront guidance. Their team handles everything from consultation to installation, aiming to reduce electric bills and increase energy independence. Customers appreciate their knowledgeable staff and timely communication, though a few have noted concerns about business practices.
ParagonSun is a certified Enphase Gold Partner known for custom solar system designs tailored to individual energy needs. Their team handles everything from installation to financing with clear, upfront pricing and attentive communication. Customers appreciate their professionalism and thorough approach, though a few note mixed experiences.
Cali One Services specializes in custom solar panel and roofing installations with zero down financing options. Their team handles residential and commercial projects, offering tailored photovoltaic systems and ongoing maintenance. Customers appreciate their professionalism and clear communication, though some note occasional delays in responsiveness.
With over 30 years of experience and industry-standard certification, Altair Solar offers solar installation backed by a one-year free maintenance policy for new customers. Their team handles everything from planning to installation, aiming to maximize savings with products from well-established manufacturers. Some customers note communication and service delays after installation.
Firefly Energy LLC specializes in installing high-efficiency SunPower solar panel systems that maximize energy production while using less roof space. Their team handles everything from initial consultation to after-installation service, with customers appreciating clear communication and ongoing support, though some note occasional software issues that are promptly addressed.
Known for their clear, thorough education on solar energy’s pros and cons, UYS ENERGY helps homeowners make informed choices about going solar. Their team handles everything from initial quotes to installation and paperwork, with customers appreciating their professionalism and responsiveness throughout the process. Some note the learning curve involved but value the detailed guidance provided.
****Buyer Beware**** ZERO STARS !!!! Our system was installed in 2016 and within 2 yrs our roof started leaking and every year they would send out someone and they would tell us they can not find any leaks. Even though everytime it rains it leaks. A few days ago we cut open our ceiling and not only…
| # | Business | Rating | Reviews | Starting price | Phone | Website |
|---|---|---|---|---|---|---|
| 1 | Sunrun Solar | 4.7 | 195 | $10 | (833) 324-5886 | Visit |
| 2 | Elevation | 4.9 | 100 | $50 | (866) 634-5291 | Visit |
| 3 | Orange County Solar Installation | 4.7 | 71 | $50 | (949) 427-8817 | Visit |
| 4 | SunSolar U.S. | 5.0 | 45 | $100 | (949) 242-0088 | Visit |
| 5 | Sun Synergy Consulting, Inc. SunPower Authorized Company. | 4.3 | 46 | $10 | (951) 428-8382 | Visit |
| 6 | ParagonSun | 4.8 | 32 | $50 | (858) 386-0463 | Visit |
| 7 | Cali One Services - Solar Installation | 3.9 | 33 | $500 | (800) 884-7072 | Visit |
| 8 | Altair Solar | 3.9 | 31 | $100 | (949) 502-8565 | Visit |
| 9 | Firefly Energy LLC | 5.0 | 13 | $75 | (949) 484-5158 | Visit |
| 10 | UYS ENERGY | 5.0 | 8 | $50 | (323) 517-8180 | Visit |
This calculator sizes a solar system from your electricity use. Your monthly bill, divided by the average California electricity price, gives your yearly use; California's sunshine (1,677 kWh per kW of panels a year) then gives the system size that covers it, adjusted for roof direction and shade. The installed price is that size multiplied by the price per watt homeowners in California pay installers. Payback compares that price with what the panels save at California power prices, assuming prices rise 3% a year.
An estimate, not a quote. Roof size and pitch, shading, equipment, permits and the installer all change the final price; installers confirm it after a site visit. Sources: EnergySage state installed-cost data (2026), NREL PVWatts, U.S. Energy Information Administration residential prices (2026), state program pages.