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 Northridge
Commercial solar installation in Northridge typically runs $2.35 to $3.10 per watt for a standard rooftop system, with most projects landing between $45,000 and $180,000 before incentives. We install on warehouses, retail strips, and office buildings throughout the 91324, 91325, and 91330 ZIP codes, and we’re usually on-site within 48 hours of your first call. If you own a commercial property in Northridge, call (877) 550-6892 and Gus will walk your roof himself before quoting a single number.
Why Gus’s Solar Is Northridge’s Preferred Commercial Solar Installation Company
Our Commercial Solar Installation team works differently than the out-of-state outfits that cold-call Northridge business owners. Gus Petrakis owns the company, puts his name on the truck, and stands behind every watt his crew installs. We’ve been at this since 2011, and our customers in Northridge know they can call Gus directly when something needs attention. Not a ticketing portal. Not a call center in another state. The guy who owns the company picks up.
Northridge commercial property owners tell us the same story: a national installer quoted one number over the phone, then changed it after the site visit. Gus quotes off your actual LADWP bill, not a brochure. Bring us a bill, we’ll bring the math. And if a salesman needs an answer tonight, the answer is no. Take two weeks. Think about it. The price will be the same.
Every job carries the 90-Day Done Right Promise in writing. If it’s not right, Gus makes it right. That’s not marketing language. It’s in the contract. Northridge businesses have been burned by contractors who vanish after the check clears. Gus’s crew wears uniforms, is background-checked, and the owner’s name is on the building where he works. Our published address and license number are easy to verify. We answer calls 24/7 with a live person, because a warehouse roof leaking at 2 a.m. shouldn’t wait for a callback.
Our Commercial Solar Installation Services in Northridge
We handle commercial solar from Reseda Boulevard to Tampa Avenue, from the Northridge Fashion Center area up through the industrial pockets near Nordhoff Street. Here’s what we do most often for Northridge property owners.
Commercial Rooftop Solar
Northridge’s commercial buildings sit on flat valley land with almost no shading from hills or tall neighbors. That’s ideal for rooftop arrays. But many of these roofs are original 1970s built-up roofing, and mounting penetrations done wrong create leaks that void the roof warranty. Gus’s crew flashes every penetration properly and stands behind the roof work as part of the solar job. A typical 50 kW rooftop system in Northridge runs $117,000 to $155,000.

Warehouse & Industrial Solar
The tilt-up concrete warehouses along Parthenia Street and the industrial corridors near California State University Northridge are prime candidates for solar, but they carry a specific risk: wet insulation hidden under old built-up roofing. We thermal-scan before we mount, because penetrations into wet insulation cause condensation and roof rot. A 200 kW warehouse array in Northridge typically runs $420,000 to $580,000, depending on roof condition and reinforcing needs.

Solar Carport Installation
Northridge parking lots bake in 110°F summer heat, which means shaded parking is a real employee benefit and a real production win. Carport structures cost more than rooftop per watt because of the steel, typically $3.40 to $4.20 per watt installed. But they let you add generation capacity without touching the roof, which matters when your roof is post-1994 concrete tile that cracks under point loads. We work with Tesla and FranklinWH hardware on these builds.

Commercial Battery Storage
LADWP’s net metering program credits less per kilowatt-hour than it used to, so more Northridge businesses are pairing solar with batteries to shift energy into peak-rate windows. FranklinWH and Tesla Powerpack systems are what we install most often. A 100 kWh commercial battery setup in Northridge runs $75,000 to $110,000 installed. It pairs cleanly with a new array and hedges against LADWP rate changes that hit commercial accounts hard in summer months.

What happens when you call
- 1
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 Northridge
We install and service equipment from Tesla, Enphase, SolarEdge, and FranklinWH. Gus stocks Enphase and SolarEdge replacement parts locally, which means a failed microinverter or optimizer on a Northridge commercial system doesn’t wait a week for shipping from another state. Same goes for panel brands. We work with whatever your existing system uses, and we don’t push a brand because of a rebate. We push what holds up in 112°F valley heat year after year.
Common Commercial Solar Installation Problems We See in Northridge
- Post-1994 concrete tile roofs cracking under rail mounts. Northridge’s post-earthquake rebuilding put concrete tile on a huge share of buildings. Installers unfamiliar with this roof type over-torque the clamps and snap tiles, then the leaks start. We use tile-replacement mounts and torque specs specific to the tile profile.
- 1990s electrical panels failing LADWP interconnection inspection. Many post-quake upgrades used 100A Zinsco or Federal Pacific panels. LADWP inspectors often reject these on busbar rating grounds. Gus’s crew checks your panel before we sell you a system, so you don’t find out at the inspection stage.
- Wet insulation under old built-up roofing. Northridge’s 1970s commercial flat roofs hide moisture under the roofing membrane. Mounting penetrations through wet insulation degrade the roof and void the manufacturer warranty. We thermal-scan every commercial roof before design.
- Panel temperature derating in extreme valley heat. Northridge records among the hottest temperatures in Los Angeles County. Panels lose efficiency as they heat up, and a module with a poor temperature coefficient loses more. We specify modules with coefficients below -0.35%/°C for every Northridge commercial system.
Pricing for Commercial Solar Installation in Northridge, CA
Here’s what you should expect to pay in Northridge, based on what we’ve installed in the area:
- Commercial rooftop solar: $2.35 to $3.10 per watt. A 50 kW system runs $117,000 to $155,000.
- Warehouse & industrial solar: $2.10 to $2.90 per watt. A 200 kW array runs $420,000 to $580,000.
- Solar carport installation: $3.40 to $4.20 per watt. A 100 kW carport runs $340,000 to $420,000.
- Commercial battery storage: $750 to $1,100 per kWh installed. A 100 kWh system runs $75,000 to $110,000.
What moves the number is your roof condition, panel age, and whether LADWP’s interconnection queue adds time, which it often does. We quote the year-25 output, not the day-one brochure number. Estimates are free, and the price we quote is the price you pay. Call (877) 550-6892 and bring us a bill. We’ll bring you the math.
Key takeaways: Budget $2.10 to $3.10 per watt for rooftop systems in Northridge. Expect LADWP interconnection to add 2-4 weeks. Post-quake roofs need assessment before mounting. Panel temperature coefficients matter at 110°F.
The Local Northridge Conditions That Affect Your Solar Project
Northridge is the literal epicenter of the 1994 Northridge earthquake, and the residential and commercial rebuilding that followed means a large cohort of buildings received new roofs, new wiring, and upgraded electrical panels within a narrow 1994-1998 window. Those post-quake improvements are now 25-30 years old and reaching end-of-life at the same time. If your Northridge property got a new roof or panel in the mid-90s, you’re likely facing a replacement soon, and bundling that work with solar is a smart way to save on labor and permitting. A roof replacement plus solar is far more common work here than in neighboring Valley cities that saw less concentrated post-earthquake rebuilding.
On a commercial strip in 91324, our crew ran an azimuth analysis on a 1962 ranch with the original composition shingle roof and a 1995 post-quake concrete tile addition. The roof had two different load profiles on the same plane, so we split the array: SunPower panels on microinverters over the old shingles after reinforcement, and Qcells with a central inverter on the tile section. The LADWP interconnection queue added three weeks to the timeline, but the customer’s true-up statement finally showed a 94% kWh offset once the system was online.
Another quirk of Northridge: every ZIP here sits inside LADWP’s service territory, not SCE’s. LADWP’s interconnection process runs slower than SCE’s, and out-of-area contractors unfamiliar with the queue routinely underestimate approval delays. Gus has been through this process enough times that he pads the timeline accurately and sets expectations up front. That’s the difference between a solar project that finishes when promised and one that drags for months.
We Also Serve Cities Near Northridge
If your commercial property sits just outside Northridge, we cover Northridge and the surrounding communities too. We install commercial solar in North Hills, Chatsworth, Canoga Park, and Encino, and we’re familiar with each city’s roof stock and utility quirks. Same crew, same pricing, same 90-Day Done Right Promise. Call (877) 550-6892 and we’ll come out wherever you are in the west Valley.
Serving Northridge, CA - Our Local Coverage Area
We’re based in the Northridge 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 Northridge
LADWP’s net metering credits exported energy at a lower rate than SCE’s historical program, which stretches the typical Northridge commercial payback to 6-9 years versus 5-7 years in nearby SCE territory. But LADWP’s commercial time-of-use rates are also steeper in summer, so pairing solar with battery storage shifts the economics back in your favor. Call (877) 550-6892 and Gus will run the numbers off your actual LADWP bill, not a generic estimate.
Yes, but you need an installer who understands post-quake concrete tile. Standard rail mounts crack these tiles under point load, which leads to leaks. We use tile-replacement mounts with torque specs matched to your specific tile profile, and we inspect every tile before we drill. Gus’s crew has done this on dozens of Northridge buildings. Call us and we’ll assess your roof before quoting anything.
Often yes. Many post-quake panel replacements in Northridge used 100A Zinsco or Federal Pacific panels that fail LADWP’s interconnection inspection on busbar rating grounds. Gus checks your panel during the free site visit, so you know before you sign anything whether a panel upgrade is in your project scope. Upfront pricing means the panel cost is in the quote, not a surprise at inspection.
Look for a temperature coefficient below -0.35%/°C. Northridge routinely hits 105-112°F in summer, and panel efficiency drops as panels heat up. A panel with a -0.29%/°C coefficient loses about 4% less output at 110°F than one rated at -0.40%/°C. Over 25 years in this valley, that difference is real money. We specify low-coefficient modules for every Northridge system.
Most panels degrade 0.5% to 0.8% per year, which compounds. A panel degrading at 0.5% annually produces about 87% of its day-one output in year 25; one degrading at 0.8% produces about 82%. Gus quotes the year-25 output, not the day-one brochure number. That’s the honest way to compare systems, and it’s how we’ve built our reputation in Northridge.
Call Gus’s Solar for Commercial Solar Installation in Northridge, CA
If you own a commercial building in Northridge and you’re tired of high-pressure sales tactics and quotes that change at the door, call (877) 550-6892. Gus answers his own phone, visits your property himself, and gives you a written quote built off your actual LADWP bill. Take two weeks before you sign. The price will be the same. We’ve been doing this since 2011, and our 90-Day Done Right Promise is in writing on every job.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Northridge and the surrounding San Fernando Valley communities since 2011.






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