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Fast, Reliable Solar Battery Storage & Backup Across Topanga
Adding battery storage to a solar system in Topanga isn’t a luxury upgrade. It’s the difference between keeping your refrigerator, well pump, and medical equipment running during a Public Safety Power Shutoff and sitting in the dark for 12 to 48 hours. We’ve worked on canyon homes from Saddle Peak Road down to Old Topanga Canyon Road, and we know exactly how SCE’s PSPS events shape what a backup system needs to do here. Call us at (877) 550-6892 and we’ll talk through the sizing and placement that actually fits your property.
If you have existing solar panels but no battery, you’re leaving yourself exposed to the same outages every other Topanga homeowner dreads. A retrofit usually runs $11,000 to $18,500 depending on battery size and whether your existing inverter can talk to it. That’s the honest range, and we’ll show you the math on your bill before you spend a dime.
Why Gus’s Solar Is Topanga’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis put his name on the building in 2011, and his crew has been climbing Topanga roofs ever since. That matters out here. Topanga doesn’t do anonymous contractors. You want to know who’s on your property, and Gus’s crew are background-checked, uniformed, and they’re the same people every time. You’ll see the same faces on the job that you saw at the estimate.
Our reviews from Topanga customers lean on two things: we answer the phone, and we show up when we say we will. When a PSPS event knocks out Saddle Peak or Fernwood, we get calls from homeowners whose legacy inverters failed right when the grid dropped. That’s a bad day. We respond fast, and the person who answers at (877) 550-6892 is a live human, not a queue. We also stock Solar Battery Storage & Backup equipment in our Los Angeles office so we’re not waiting on a distributor’s truck while your food spoils.
We’re local in a way the out-of-state shops can’t fake. We know Topanga’s roads, we know which hillside properties need extra mounting hardware, we know which canyon floors sit in fog until 10 a.m. And we don’t sub the work out. The team that quotes it is the team that installs it.
Our Solar Battery Storage & Backup Services in Topanga
Tesla Powerwall Installation
The Tesla Powerwall 3 is the most common battery we install in Topanga, and for good reason. A single unit holds 13.5 kWh, which covers the essential loads on most canyon homes overnight. If you have a well pump, a second refrigerator, or medical equipment, we’ll often recommend two units. Installation for a single Powerwall 3 in Topanga typically runs $12,500 to $16,000 before any incentives, including the gateway and electrical work. The permitting piece in unincorporated Los Angeles County, which is how Topanga is governed, adds time that flat-city installers don’t budget for.

Enphase IQ Battery Installation
The Enphase IQ Battery 5P is a good match for Topanga homes with existing Enphase microinverters, which is a lot of the canyon. The 5P is modular, so we can start with one unit and add a second or third later if your outage requirements grow. Budget $9,000 to $13,500 for a single 5P installed, with additional units running around $6,500 to $8,000 each. We installed an IQ battery system on a house off Fernwood Pacific Drive where the homeowner wanted to phase the cost over two years. That’s a reasonable plan, and we’ll lay it out for you honestly.

Whole-Home Backup Power
Whole-home backup in Topanga means something different than it does in Calabasas. Out here, you may need to run a well pump, a septic controller, refrigeration, and maybe a home office all at once. That’s a real load calculation, not a guess. We size whole-home systems based on your actual SCE bill and your actual appliances, not a square-footage estimate. Most whole-home setups in Topanga run $18,000 to $28,000 all-in, depending on whether you need one battery or two, and whether your panel needs upgrading. The homes on steep lots around Montevideo Drive often need a main panel upgrade first, and we’ll tell you that up front instead of discovering it mid-project.

Battery Retrofit for Existing Solar
This is the service we do most often in Topanga. You’ve had panels for eight or ten years, the inverter is getting tired, and you’ve realized grid-tied solar does nothing for you during a PSPS. We retrofit your existing array with battery storage and, in most cases, replace the aging inverter at the same time. Most retrofits in Topanga run $11,000 to $18,500. If your original system used a string inverter that’s now out of warranty, expect the replacement inverter to add $2,500 to $4,000 to that number. We’ll show you the exact cost before we pull any permits.

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 Topanga
We work with equipment that holds up in Topanga’s specific conditions, and we have strong relationships with FranklinWH, Panasonic, and Canadian Solar distributors. The FranklinWH aGate and aPower systems are particularly popular with Topanga homeowners who want a whole-home platform with a 15-year warranty. Panasonic’s EverVolt line is a good fit for tighter electrical rooms in older cabins. Canadian Solar’s panels pair well with our retrofits, especially where we’re matching existing racking on an aging roof. We stock common parts and keep battery inventory staged in our Los Angeles office, so we’re not waiting on shipping from Texas when you need service.
Common Solar Battery Storage & Backup Problems We See in Topanga Homes
- Legacy grid-tied inverters dying right when a PSPS starts. This is the one that stings. You have panels on the roof, SCE cuts power, and your inverter – which needs the grid to operate – shuts down with it. We replace a lot of older SolarEdge and SMA string inverters in Topanga for exactly this reason.
- Protected oaks starving south-facing arrays. LA County’s Oak Tree Ordinance means you can’t legally trim or remove a protected oak without a permit, and permits to encroach on them are rare. We’ve seen south-facing arrays lose 40% of their production to a single mature oak. The fix is often microinverters or power optimizers, plus a battery sized for the real-world production number, not the sunny-day estimate.
- Aging hillside cabin roofs with non-standard framing. A lot of Topanga homes were built in the 1960s and 1970s before modern structural codes. Before we add a battery to an existing system, we check the roof’s load capacity. Some Saddle Peak and Red Rock Road homes need reinforcement before we add anything, and that’s a cost you should know about in week one, not week six.
- Fog and marine layer cutting into morning production. Canyon-floor homes, especially north-facing properties near the creek, get less direct sun than the standard solar maps claim. If we size a battery based on the regional map instead of your actual site, your battery won’t charge fully and you’ll come up short during an outage. We run a site-specific shading analysis on every Topanga job. No exceptions.
Pricing for Solar Battery Storage & Backup in Topanga, CA
Here are straight numbers for the Topanga market. A single-battery retrofit on an existing system runs $11,000 to $16,500. A Tesla Powerwall 3 installation typically lands at $12,500 to $16,000. An Enphase IQ Battery 5P is $9,000 to $13,500. Whole-home backup with two batteries and a panel upgrade runs $20,000 to $28,000. Your final number moves based on three things: how many amp-hours your essential loads need, whether your existing inverter can integrate with a DC-coupled or AC-coupled battery, and whether your roof needs reinforcement before we touch it. We’ll bring you a written quote that doesn’t change. Take two weeks. Think about it. The price will be the same. Call (877) 550-6892 for a free estimate.
We Also Serve Cities Near Topanga
Gus’s Solar works throughout the Santa Monica Mountains and western San Fernando Valley. In addition to Topanga, our crews regularly serve Calabasas, Woodland Hills, West Hills, and Encino. Same owner, same crew, same 24/7 phone coverage no matter which side of the hill you’re on.
Serving Topanga, CA - Our Local Coverage Area
We’re based in the Topanga 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 - Solar Battery Storage & Backup in Topanga
PSPS events in Topanga typically last 12 to 48 hours, and during Santa Ana wind season they can recur multiple times in a month. That means your battery needs to carry your essential loads for at least a full day and preferably two, without relying on a recharge from panels that may be shaded by smoke, fog, or protected oaks. We size batteries for the worst-case outage, not the average one, and that usually means 13.5 kWh minimum. Call (877) 550-6892 and we’ll size yours off your actual SCE usage data.
Yes. A mature coast live oak shading a south-facing array can reduce production by 40% or more, especially in winter when the sun angle is lower. LA County’s Oak Tree Ordinance prohibits trimming or removing protected oaks without county approval, and approvals for encroachment are hard to get in Topanga. The practical fix is usually relocating panels to an unshaded roof face, or adding microinverters and power optimizers to squeeze usable wattage from the partially shaded array. We’ve done both on canyon homes off Old Topanga Canyon Road.
Under NEM 3.0 in California, the financial case for batteries has shifted from net-metering arbitrage to self-consumption and outage protection. For most Topanga homeowners adding a battery to an existing system, the practical payback – factoring reduced grid imports, time-of-use savings, and avoided food and medical losses during PSPS events – lands between 7 and 11 years. If you’re on a well with no generator, the outage protection alone can justify the cost faster. We’ll run the actual numbers on your bill, not a brochure chart.
Yes. Topanga is unincorporated Los Angeles County, and battery installations require county building permits, electrical permits, and in many cases fire-code review because the entire canyon sits in a Very High Fire Hazard Severity Zone. That review adds time and cost that flat-city installers sometimes fail to budget for. We handle the county paperwork end to end, and we’ll tell you the permitting timeline before we start.
Your property is dealing with Topanga Canyon’s specific microclimate. North-facing slopes near the creek get reduced peak sun hours, and the marine layer from the Pacific coast lingers over canyon floors until mid-morning, especially from May through August. Standard solar irradiance maps average those effects out. We run a site-specific production analysis using your actual roof orientation, tree cover, and fog patterns, then size your battery to match the real production number. That’s how you avoid an undercharged battery on day three of an outage.
Call Gus’s Solar for Topanga Battery Storage and Backup
If your inverter failed during the last PSPS, or you’re tired of watching your grid-tied panels sit useless while the canyon goes dark, call us. Gus Petrakis answers his own phone. We’ll bring the math, the permit knowledge, and a written quote you can hold us to. Take two weeks to decide. The price won’t change. Call (877) 550-6892 today for a free estimate.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Topanga and the Santa Monica Mountains since 2011.






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