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 Temple City
Commercial solar in Temple City means running real math on Southern California Edison’s NEM 3.0 rates, your building’s actual electrical panel, and the tile roof under the panels. Our Commercial Solar Installation team does that before we ever quote a wattage. We’re Gus’s Solar, and we’ve been doing this long enough to know that a 1950s bungalow off Las Tunas Drive hides different problems than a 1990s warehouse on Baldwin Avenue. If you’re weighing numbers or just want someone to look at the roof, call (877) 550-6892 and Gus Petrakis will pick up.
Why Gus’s Solar Is Temple City’s Preferred Commercial Solar Installation Company
We’re not a door-knocking outfit. Gus Petrakis put his name on the building, answers his own phone, and still tells commercial owners to take two weeks before signing anything. That matters in Temple City, where plenty of business owners got burned by an out-of-state installer that quoted one number over the phone and another at the permit counter. We’ve built our reputation in Temple City on doing the opposite: the price we quote is the price you pay, in writing, backed by our 90-Day Done Right Promise.
Our crews come to Temple City regularly. We know the building department’s permitting quirks, the tile roofs along Las Tunas and Live Oak, and the hidden electrical panels that stall so many rooftop solar projects in 91780. When you call, a live person answers, not a voicemail tree. Gus himself checks the system after install. If something’s not right, one call brings him back.
Our Commercial Solar Installation Services in Temple City
Commercial Rooftop Solar
Rooftop arrays on Temple City’s older commercial stock, from converted ranch houses to strip-mall storefronts, need more than a generic racking kit. Most of these roofs wear concrete tile or clay tile laid on 1940s to 1970s framing. We spec mounting hardware built for that tile profile and flashing that keeps rain out of the valleys around the air conditioner curbs. A typical Temple City commercial rooftop array runs $2.45 to $3.20 per watt installed, with most smaller commercial roofs landing between 15 and 40 kilowatts.

Warehouse & Industrial Solar
Warehouses along Baldwin Avenue and the industrial pockets near the Rosemead border usually have flat or low-slope roofs that can hold serious panel capacity. These buildings burn through kilowatts with HVAC, refrigeration, or lighting, and that’s where a properly sized array pays off fastest. We design for actual year-25 output, not the day-one brochure number. If your warehouse has a 200-amp service already, a 100-kilowatt rooftop system can offset the bulk of your daytime load under SCE’s commercial rate schedules.

Solar Carport Installation
Carports solve two Temple City problems at once: parking shade for employees or customers, and panel area when the existing rooftop can’t support more weight, plus they pair naturally with Temple City EV Charger Installation. Given how many Temple City commercial lots are fully paved with no tree cover, a carport array can often hold 40 to 60 panels while keeping cars cooler through the San Gabriel Valley summers. We engineer the footings for local seismic requirements and size the inverter for your actual load profile.

Commercial Battery Storage
In Temple City, Solar Battery Storage & Backup in Temple City isn’t an extra. It’s the difference between a solar array that saves money and one that makes almost none. Because Temple City sits entirely inside Southern California Edison territory under NEM 3.0, pushing excess solar to the grid earns you pennies. Storing that generation in a FranklinWH or Enphase battery and drawing on it during peak afternoon and evening hours is where the financial return actually happens. We design commercial storage systems to shave demand charges, not just to arbitrage export rates.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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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 Temple City
We install and maintain systems built around the equipment we trust to hold up in the LA Basin’s heat and smog. On Temple City commercial jobs, we most often spec Enphase microinverters, REC or SolarEdge panels rated for low light-angle and high-temperature performance, and FranklinWH battery storage for NEM 3.0 economics. Because our trucks are on Temple City roads every week, we can get replacement parts and service calls done quickly, without waiting on a warehouse three states away.
Common Commercial Solar Installation Problems We See in Temple City Buildings
- Original 60- or 100-amp panels hiding behind a remodeled interior. We’ve scoped 1950s and 1960s commercial buildings in Temple City with flawlessly renovated storefronts and kitchens, only to find a Zinsco or Federal Pacific panel in the back room. The solar permit stalls until that panel is swapped for a modern 200-amp service, and the upgrade needs to be in the quote from day one.
- Tile and concrete roofing that generic racking can’t handle. A big percentage of Temple City’s commercial buildings sit on concrete tile roofs. Coastal-market installers often underprice the job because they assume composite shingle mounting. The labor and hardware for tile replacement and specialized hooks adds real cost, and if the bid doesn’t include it, you’ll get a change order mid-project.
- Smog and particulate soiling that quietly kills production. Temple City sits in the LA Basin inversion layer, where photochemical smog and fine dust settle on panels and cut output measurably. Owners who skip a maintenance plan on a commercial array here lose more production than they would in a coastal city. We offer a Commercial Solar Installation maintenance program built around that reality, and our techs can clean and inspect your array on a schedule that accounts for local soiling patterns.
- Designs that ignore NEM 3.0 and skip storage. A solar-only design in Temple City under SCE’s current export rates can turn a promising payback calculation into a multi-year financial loss. If nobody in the sales process asks to see your last twelve months of SCE bills and your actual load data, walk away. We won’t quote you a system without that conversation.
Pricing for Commercial Solar Installation in Temple City, CA
A small commercial rooftop array in Temple City (15 to 25 kW) typically runs $55,000 to $90,000 before any tax credit or depreciation. A mid-size warehouse or carport system (50 to 100 kW) lands between $130,000 and $300,000, depending on roof condition, panel upgrades, and storage. A battery system sized for demand-shaving on a typical Temple City retail or small warehouse building adds $45,000 to $120,000 depending on capacity and brand. The panel upgrade that so many older Temple City buildings require runs $6,000 to $15,000, and it’s usually the first thing we scope. Every bid comes from your actual SCE bill, not a brochure. We’ll give you the math in writing and tell you to take two weeks. Bring us a bill, we’ll bring you the numbers. Call (877) 550-6892 for a free estimate. We never ask for a decision on the spot. If a salesman needs an answer tonight, the answer is no.
We Also Serve Cities Near Temple City
Our crews cover Temple City and the surrounding San Gabriel Valley communities, including Rosemead, San Gabriel, Arcadia, and East San Gabriel. If your commercial building sits in any of those cities, the same local team that knows Temple City’s building department and SCE rate environment will be the one doing your install. No handoffs to a sub, no strangers on the roof.
Serving Temple City, CA - Our Local Coverage Area
We’re based in the Temple City 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 Temple City
NEM 3.0 cuts the credit SCE pays you for exported solar to a fraction of the retail rate, which means a solar-only commercial system in Temple City often has a weak or negative return unless it’s paired with battery storage. The math shifts from “sell power to the grid” to “store power and dodge peak rates.” Our team sizes storage to your building’s actual hourly load data, and every proposal we write for a Temple City commercial customer shows the year-25 output and payback under the current tariff, not the day-one number. Call (877) 550-6892 and Gus will walk you through your SCE bill line by line.
In most cases, yes. Temple City’s building department rejects solar permit applications when the existing service panel can’t support the additional load or lacks a proper solar breaker position, and many of these buildings still carry original 60- or 100-amp Federal Pacific or Zinsco panels. We scoped a 1950s commercial bungalow off Rosemead Boulevard where a fully renovated interior hid exactly that situation. We quoted the 200-amp upgrade as part of the solar bid, pulled the permit without a stall, and moved on with the Enphase battery and REC panels. The panel upgrade added about $8,000 to the job, and it would have been a surprise change order if nobody checked the panel before quoting. We always check before we quote. Call (877) 550-6892 for a free site walk.
Temperature coefficient and low-light performance matter more in Temple City than they do in a coastal market, because the LA Basin smog and particulate haze that settles over the San Gabriel Valley reduces effective irradiance and raises panel operating temperatures, which is why Solar Panel Cleaning in Temple City matters for long-term output. We lean on REC and SolarEdge monocrystalline panels with low temperature coefficients and strong low-light output, which hold production better through the hazy afternoons and hot summer weeks. A cheap polycrystalline panel spec’d for coastal conditions will underperform in Temple City. We quote panels built for this environment. Call (877) 550-6892 to talk specs.
Under SCE’s NEM 3.0 rates, most commercial arrays in Temple City lose the bulk of their financial benefit without storage. The exception is a building whose highest loads match up closely with solar production hours, like a bakery or a machine shop that runs hard from mid-morning through mid-afternoon. If your business operates mainly at night or in the early evening, you need storage or the array simply won’t pay back. We’ll tell you that straight, even if it means a smaller system than a competitor quoted. Call (877) 550-6892 and bring a copy of your SCE bill to the conversation.
Concrete tile roofs on Temple City’s older commercial buildings need tile-replacement mounting with double flashing, not the generic composite-shingle hooks used on asphalt roofs in newer construction. The tiles are brittle, the underlayment is often original, and the roof pitch is frequently shallower than coastal market installers expect. We spec stainless steel tile hooks with two-layer flashing and replace any cracked tiles around each penetration, which protects the roof from repeated leaks in the San Gabriel Valley’s winter rains. Skimping on that hardware is how a cheap commercial solar bid becomes a roofing repair bill in year six. Call (877) 550-6892 to have Gus’s crew look at your roof before anyone quotes a wattage.
Call Gus’s Solar for Commercial Solar Installation in Temple City
We’re a local, owner-operated shop led by Gus Petrakis, and we’ve been putting our name on solar work for over 29 years. No subcontracted labor, no call center, no pressure. We’ll scope your Temple City building, crunch the SCE numbers, and hand you an honest quote you can take two weeks to think about. The price will be the same. Call (877) 550-6892 today for a free estimate.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Temple City and the San Gabriel Valley since 2011.






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