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.
Fast, Reliable Commercial Solar Installation Across San Pedro
Commercial solar in San Pedro is not an inland solar job. The salt air off the Port of Los Angeles, the diesel exhaust from port truck traffic, and the thick marine layer that sits over San Pedro Bay all change what equipment you need, how often it gets cleaned, and what your production numbers will actually be year 25. We know because we install and maintain arrays here, from warehouses off Gaffey Street to commercial buildings in 90731 and 90732. If you are looking for a straight answer on whether solar pencils out for your building, call (877) 550-6892 and bring us a bill. We’ll bring you the math.
Why Gus’s Solar Is San Pedro’s Preferred Commercial Solar Installation Company
Gus Petrakis founded Gus’s Solar in 2011 and put his own name on the truck. That is the difference. When a warehouse manager on Terminal Way calls with a production drop, Gus answers the phone, not a call center three states away. Our Commercial Solar Installation team works with his own crew, all background-checked and uniformed, and every job carries the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Gus back. That matters in a port town where national installers quote one number on the phone and another at the door.
We serve building owners and facility managers across San Pedro, from 90731 up through 90734. The work here is different from Torrance or Carson, and we plan for it accordingly. Salt-mist-rated racking, marine-grade grounding, quarterly cleaning cycles, and battery systems sized for a coastal production curve. No high-pressure pitch, no signature wanted tonight. Take two weeks. Think about it. The price will be the same.
Our Commercial Solar Installation Services in San Pedro
Commercial Rooftop Solar
A commercial rooftop array in San Pedro needs to be engineered for the environment, not just the building. We assess roof structure, rafter sizing, and the specific tilt and orientation of your roof planes before we quote anything. Many commercial buildings near the bluff and along Gaffey Street have roof decks that catch full-afternoon sun once the marine layer burns off. That late-day production window matters when we size your system. Our Commercial Solar Installation process includes on-site irradiance logging, not a generic LADWP table number. Because those tables routinely overstate San Pedro output.

Warehouse & Industrial Solar
Warehouses near the Port of Los Angeles deal with a constant cocktail of salt fog and diesel particulates. Flat-roof arrays on industrial buildings need ballasted or mechanically attached racking that will not corrode at the connection points. We spec stainless steel hardware and marine-grade coated grounding lugs on every terminal-area install. If your warehouse roof is TPO or modified bitumen, we flash every penetration properly, because a leak in a port building is not a warranty call you want to make twice.

Solar Carport Installation
Carport solar makes particular sense in San Pedro where ground space is tight and asphalt lots bake off the late-afternoon heat. We install structural steel carports that double as shaded parking while the panels carry the load. The steel gets a marine coating before the panels go up. Bare galvanized steel does not last here.

Commercial Battery Storage
Solar Battery Storage & Backup in San Pedro is not an upsell. It is how you keep the building running when the marine layer throws your production curve off its morning target and the afternoon sun has to make up the difference. We pair FranklinWH and Tesla Powerpack systems with our commercial arrays, sized off your actual bill and your actual usage pattern. Not a brochure estimate.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Pedro
We work with Enphase and SolarEdge for inverter and microinverter systems, and FranklinWH for commercial battery storage. These brands hold up in coastal environments when the surrounding hardware is done right. We stock the common replacement parts for these systems for San Pedro customers, which means a faster turnaround when a component fails. No waiting on a distributor across the country while your array sits dark.
Common Commercial Solar Installation Problems We See in San Pedro Homes
- Galvanic corrosion at racking connections. Where aluminum racking meets stainless bolts without isolation, the salt air creates a battery and the aluminum loses. We see white powder bloom at these junctions within 18 months near the harbor. We use isolation washers and marine-rated fasteners on every install.
- Diesel film coating panels. Port truck traffic mixes diesel particulate with marine fog, and it sticks. If panels are not cleaned quarterly, annual production drops 6 to 10 percent. We write quarterly cleaning into our O&M contracts for Terminal Island and harbor-adjacent buildings.
- Inverter shutdowns from late-afternoon voltage rise. West-facing arrays along the bluff see a rapid voltage spike when the marine layer thins around 3 or 4 p.m. If string sizing and rapid shutdown are not tuned for that timing, the inverters trip. We design around it from day one.
- Undersized roof structures on older buildings. San Pedro’s older commercial buildings, especially the wood-frame ones from the 1930s through the 1950s, were not engineered for roof loads. We do a structural assessment before quoting, and reinforcement is part of the job when needed, not a surprise change order.
Pricing for Commercial Solar Installation in San Pedro, CA
Commercial rooftop solar in San Pedro typically runs $2.20 to $3.10 per watt installed, depending on roof structure, panel count, and whether you add battery storage. A 100 kW warehouse array generally lands between $220,000 and $310,000 before incentives. Commercial battery storage adds $800 to $1,200 per kWh of capacity, so a 40 kWh system runs roughly $32,000 to $48,000. Carport installations cost more per watt, usually $3.00 to $3.80, because of the structural steel.
Your bill and your building define the final number. We quote off your actual LADWP usage and your actual roof. No generic estimates. Call (877) 550-6892 for a free estimate, and we will give you a number you can sit on for two weeks.
We Also Serve Cities Near San Pedro
Our crews cover San Pedro and the surrounding South Bay communities. We install and maintain commercial solar in Lomita, Torrance, Rancho Palos Verdes, and Rolling Hills Estates. If your building sits on the southern edge of Los Angeles County, we are close by and we answer the phone.
Serving San Pedro, CA - Our Local Coverage Area
We’re based in the San Pedro 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 - Commercial Solar Installation in San Pedro
The San Pedro marine layer typically reduces morning production by 15 to 20 percent compared to inland Torrance, which extends payback by roughly 18 to 24 months on a comparable array. That is the honest number. We correct for it with on-site irradiance logging and proper system sizing, because a quote built on generic Los Angeles production tables will overstate your output and inflate your expectations. Call (877) 550-6892 and we will model your building with San Pedro conditions, not Torrance conditions.
We use stainless steel hardware with isolation washers at every aluminum-to-steel connection, and we apply a marine-grade coating to exposed copper grounding lugs and conduit runs. On buildings within half a mile of the harbor, we also recommend IEC 61701 salt-mist-certified panels. Without those steps, white corrosion powder appears at the racking fasteners within 18 months.
Yes. Terminal Island sits inside the port complex, where diesel particulate and salt fog mix into a sticky film. Clean there quarterly, minimum. Ten blocks inland, where the marine air is lighter and there is less truck traffic, we see good results with a semiannual cleaning schedule. The production difference between quarterly and semiannual cleaning on Terminal Island is typically 6 to 8 percent annually.
San Pedro’s position at the open mouth of San Pedro Bay means the marine layer thins earlier here than it does further east in Long Beach. When the onshore breeze picks up in the mid-afternoon, it scours the overcast off the bluff. West-facing panels catch that clear late-day sun for two to three extra hours of peak production. It shifts the production curve, and it changes how we size your battery storage.
Rapid shutdown requirements are the same under NEC 2020 for any commercial building, but the physical installation is different on San Pedro’s hillside wood-frame buildings. Steeper roof pitches, older rafter spacing, and fire access paths on narrow streets mean we build your rapid shutdown and string layout around the actual rooftop geometry, not a standard flat-roof template. Call (877) 550-6892 to have Gus’s crew walk the roof and tell you exactly what applies to your building.
Contact Gus’s Solar for Commercial Solar in San Pedro
If you own or manage a commercial building in San Pedro, and you want a solar quote built off your actual utility bill and your actual roof, call (877) 550-6892. Gus answers his own phone. No call center, no voicemail queue. We will come out, look at the building, log the actual solar resource on site, and give you a number you can hold us to. Bring me a bill, I’ll bring you the math. The price quoted is the price charged, and the 90-Day Done Right Promise is in writing on every job.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Pedro and the South Bay communities with commercial solar installation, maintenance, and battery storage since 2011.






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