Free bill analysis - bring a power bill, get the production math for your actual roof, panel brands like Qcells and REC compared side by side
If the pitch starts at your door and ends with "sign tonight for the special," sleep on it. The sun will still be there tomorrow; so will we.
Solar Services in Sonoma, CA
If you live in Sonoma, you’re already paying some of the highest electricity rates in the North Bay, and the morning fog that rolls through Carneros is quietly chewing into what a generic solar estimate promised you. Gus’s Solar handles every part of Solar Panel Installation - Sonoma here: honest sizing built off your actual PG&E and Sonoma Clean Power bill, installs that respect the Plaza’s design review rules, and a live person on the phone when you call (877) 550-6892. We’re not a door-knocking operation and we won’t ask you to sign anything tonight. Bring me a bill, I’ll bring you the math.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Sonoma Homeowners Choose Gus’s Solar
Gus Petrakis puts his own name on the truck, publishes his license number, and has been running this shop since 2011. Around Sonoma, that matters. Homeowners near the Plaza and up in the Springs have dealt with out-of-state crews that quote one number on the phone and another at the door, then disappear the morning after the system goes live. Gus lives in this orbit. Our home base coordinates crews that serve Sonoma locally, and when something goes wrong, one call brings Gus back. That’s the 90-Day Done Right Promise, in writing on every job.
We work with panels and inverters from Qcells, REC, and Enphase, and our background-checked, uniformed crew does the install themselves. No subs, no mystery vans. Reviews from Sonoma homeowners consistently point to the same things: the price quoted is the price charged, the crew shows up on time, and someone actually answers the phone at 6 a.m. when a breaker trips. If a salesman needs an answer tonight, the answer is no. That’s how we operate.
Solar Services We Offer in Sonoma
Solar Panel Installation
We design and install rooftop and ground-mount systems sized to your actual usage, not a brochure guess. Sonoma’s older homes near the Plaza often need a panel upgrade before interconnection, and we handle that with the same crew.
Learn more about our Solar Panel Installation in Sonoma.

Solar Battery Storage & Backup
With wildfire-season public safety power shutoffs now a routine part of living in Sonoma County, a battery isn’t a luxury. We install FranklinWH and Tesla Powerwall systems that keep your refrigeration, wine storage, and well pumps running when the grid drops.
Learn more about our Solar Battery Storage & Backup in Sonoma.

Solar Panel Cleaning
Sonoma’s dry summers kick up dust and pollen that settle on panels, and the morning marine layer leaves a film that cuts output. Our Solar Panel Cleaning in Sonoma provides seasonal service that actually moves the production needle, especially on flat and low-slope arrays.
Learn more about our Solar Panel Cleaning in Sonoma.

EV Charger Installation
We wire EV Charger Installation - Sonoma Level 2 units into your existing panel or alongside a new solar install. For Sonoma homeowners with a ranch property or a long driveway, we’ll place the charger where it’s actually useful, not just where the conduit is easiest to pull.
Learn more about our EV Charger Installation in Sonoma.

Solar Panel Maintenance & Monitoring
Gus monitors your system after install. When production dips or an inverter throws an error, he’s the one who calls you, not an automated ticket. That’s the difference between buying panels and buying a relationship.
Learn more about our Solar Panel Maintenance & Monitoring in Sonoma.

Solar Panel Repair
Storm damage, failed microinverters, chewed-through wiring from Sonoma’s active squirrel population: we diagnose and fix it. We also provide free second opinions on any written estimate you’ve gotten from another company.
Learn more about our Solar Panel Repair in Sonoma.

Commercial Solar Installation
Vineyard estates, wineries, and agricultural operations in the 95476 ZIP run continuous loads like drip irrigation pumps, cold storage, and crush equipment. We design commercial and ground-mount arrays that make economic sense at that scale, and we know the county grading and Right-to-Farm rules that come with them.
Learn more about our Commercial Solar Installation in Sonoma.

Neighborhoods We Serve in Sonoma
Our crew is in Sonoma Valley every week, and typical response time for a call inside the 95476 ZIP is same-day or next-day. That holds whether you’re near the Plaza or out past the agricultural edge of town.
- Sonoma Plaza Historic District
- Eastside / Spain Street corridor
- Boyes Hot Springs area
- Carneros district
- Agua Caliente and the valley’s estate parcels
Why Sonoma’s Climate & Housing Affect Solar
Two things separate Sonoma solar from anywhere else in the county. First, the morning marine layer that funnels up from San Pablo Bay through the Petaluma Gap sits over the southern end of the valley, especially around Carneros, until well past sunrise for much of the year. A production model that assumes a clean 7 a.m. ramp will overstate your early-morning yield. We quote the year-25 number with that fog baked in, not the day-one brochure figure. Second, the housing stock is split. The pre-WWII Victorians and Craftsman homes near the Plaza have aging roofs and undersized 100-amp panels that almost always need a service upgrade before interconnection. Step outside the historic core and you hit mid-century ranch homes and then estate parcels with large metal barn roofs. Those barn roofs and the open ground around them are often the best solar resource on the property, and the economics of an oversized array there blows away what a standard rooftop install can return on a shaded lot closer to downtown.
Pricing for Solar in Sonoma
What you’ll pay depends on system size, roof condition, and whether you need a panel upgrade or battery. Here are honest ranges from recent Sonoma jobs:
- Residential rooftop system (6-8 kW): $16,000 – $24,000 before tax credit
- Electrical panel upgrade (100A to 200A): $2,800 – $4,500
- Battery storage (single FranklinWH or Powerwall): $11,000 – $15,000 installed
- Solar panel cleaning (residential): $180 – $350 per visit
- EV charger installation: $700 – $1,400 depending on panel distance
We also take 10% off for seniors and veterans, forever. Call (877) 550-6892 for an exact quote. Estimates are free, and the price we give you is the price you’ll pay.
Service Area - Cities Near Sonoma
We regularly serve solar customers across Sonoma Valley and the surrounding communities. If you’re in Boyes Hot Springs, Petaluma, Napa, or Rohnert Park, the same Gus’s Solar crew is the one showing up. Same phone, same pricing, same 90-Day Done Right Promise.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Solar in Sonoma
Most residential systems in Sonoma run between $16,000 and $24,000 before the federal tax credit, depending on size and roof condition. If your home near the Plaza needs a panel upgrade, add roughly $3,000 to $4,500. Call (877) 550-6892 and bring me a bill. I’ll give you a number that holds.
Yes, especially in the Carneros district and the southern end of the valley, where the marine layer lingers until mid-morning for much of the year. A good estimate accounts for this. A generic one doesn’t. That’s exactly why we size systems off your actual usage history and local production data, not a nationwide average.
Yes, but the City of Sonoma design review process restricts panel visibility from public rights-of-way within the historic core. That often means panels go on rear-facing roof planes or on outbuildings. We’ve done enough of these to know what gets approved and what gets sent back. If you’ve been told it’s not possible, get a free second opinion from us.
Not legally, but practically? If you live in the 95476 ZIP, you already know what public safety power shutoffs feel like. A battery keeps your home running during those, and with Sonoma Clean Power’s current net metering rates, it often pays for itself faster than it would have three years ago. We’ll show you the math either way.
Same-day or next-day inside the 95476 ZIP, and there’s no trip charge in our own county. If you have a system another company installed and they won’t answer the phone, call us. We’ll send someone who will get on the roof, find the problem, and tell you honestly what it costs to fix.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Sonoma since day one with his own name on every job.
What happens when you call
- 1A real person answersNo phone trees - talk to a local solar pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Sonoma Customers Say
"He modelled it on my actual bill and the current export rates rather than the old ones, and told me plainly that the payback was longer than the door knockers had claimed. Then it came in about where he said it would."
- Octavius Redmond"Production dropped one spring and I did not even notice. Gus rang me, because he watches the monitoring, and had it sorted the same week."
- Sunita Balakrishnan"My previous solar company went out of business and left me with an array nobody would touch. Gus took the system over, replaced two dead microinverters, and it has run properly since."
- Ferdinand Kaltenbrunner






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