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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 Solar Battery Storage & Backup Across Pasadena
Solar battery storage in Pasadena typically runs $9,500-$18,500 installed for a whole-home system, depending on whether you’re pairing one battery with an existing array or building new. That price includes the Pasadena Water and Power interconnection paperwork, which is its own beast here. We’re Gus’s Solar, and we’ve been navigating PWP’s queue long enough to know exactly where the delays hide. If you’re tired of power outages knocking out your fridge during Santa Ana season, call (877) 550-6892 and we’ll give you a straight answer on what your house actually needs.
Why Gus’s Solar Is Pasadena’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis put his name on the truck in 2011, and he’s been answering his own phone ever since. That matters in Pasadena, where a lot of homeowners have already been burned by a national outfit that quoted one number over the phone and a different one at the door. We don’t do that. The price we quote is the price you pay, and we build the math off your actual PWP bill, not a brochure estimate. Bring me a bill, I’ll bring you the math.
Our reputation in Pasadena is built on one-trip installs. We know that Craftsman bungalows in 91104 have different rooflines than mid-century ranches in 91107, and we plan for that before we ever park the truck. Gus’s own crew does the work, background-checked and uniformed, not a sub crew we’ve never met. And when something goes wrong, a live person answers 24/7. Not a voicemail. Not a ticketing portal. A person.
We also back every job with the 90-Day Done Right Promise. If it’s not right, Gus makes it right. In writing. On every solar and battery job. That’s the standard we hold ourselves to in Pasadena, from Linda Vista to Hastings Ranch.
Our Solar Battery Storage & Backup Services in Pasadena
Our Solar Battery Storage & Backup work covers the full range, but these are the four services Pasadena homeowners call us about most often.
Tesla Powerwall Installation
A Tesla Powerwall 3 installed in Pasadena runs $11,000-$15,500 before any incentives, including the Gateway and PWP interconnection. That’s the number we quote after looking at your panel and your roof, not before. In the Bungalow Heaven district of 91104, we added a Tesla Powerwall to a 1920s bungalow where the original 100-amp panel and delicate roof framing needed two separate assessments: our structural review confirmed the ridge beam could handle the extra 150-pound battery load in the garage, and our PWP interconnection paperwork had to be filed before the final building inspection could be scheduled. We finished the whole project with one on-site crew visit, so the homeowners never had to take a second day off. That’s the one-trip standard we build toward.

Enphase IQ Battery Installation
Enphase IQ batteries are a good fit for Pasadena homes with existing Enphase microinverter arrays, which we see a lot of in the 91107 ranch houses. A typical 10 kWh IQ Battery install runs $9,500-$13,000 in Pasadena. The modular design means you can start small and add capacity later, which is useful if you’re not sure how much backup you’ll actually use once PWP’s time-of-use rates shift your charging schedule.

Whole-Home Backup Power
Whole-home backup in Pasadena means sizing for your actual loads, not the sales rep’s guess. We look at your PWP bill, your air conditioning draw during August, and whether you have a well pump or medical equipment that can’t go dark. A full whole-home backup system with two batteries runs $18,000-$28,000 in Pasadena, depending on the panel and roofline. For homes in the foothills near Eaton Canyon, where outages can last longer than the valley floor, we typically recommend more storage than the minimum.

Battery Retrofit for Existing Solar
If you already have panels but no storage, a retrofit in Pasadena runs $9,000-$14,000 for a single battery with the required PWP interconnection amendment. We handle the entire PWP paperwork chain, because adding a battery to an existing grid-tied system in Pasadena triggers a new net metering agreement review. You don’t redo the whole application, but you do need an amendment filed and approved. We quote the year-25 output, not the day-one brochure number, so you’ll know what your retrofit actually does for your bill over the long haul.

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 Pasadena
We work with the equipment we’d put on our own homes. That means Tesla Powerwall, Enphase, FranklinWH, and Panasonic batteries, matched to rooftop brands like Canadian Solar and JinkoSolar. Because we install and service these systems across Pasadena, we keep common inverter parts and battery communication modules in our local stock, which means faster turnarounds when something fails. We service all major battery brands, not just the ones we sell, so if your existing system came from a different installer, we can still troubleshoot it.
Common Solar Battery Storage & Backup Problems We See in Pasadena Homes
- Quoting an SCE timeline to a PWP customer. We see this constantly. Pasadena Water and Power runs its own interconnection queue, its own inspection scheduling, and its own Permission to Operate process. Installers who work mostly SCE territory in Arcadia or Monrovia underestimate PWP’s calendar by 8-12 weeks, and the homeowner is the one who misses the promised in-service date.
- Street-visible battery conduit on a Design Review property. Pasadena’s historic preservation program is real, and homes in Bungalow Heaven and other contributing districts need Design Review Board approval before panels or conduit are visible from the street. If your installer doesn’t flag this, you’ll get a mandatory resubmission and a re-inspection. We file that paperwork before the conduit goes up.
- Skipping the roof structural assessment on pre-WWII Craftsman. Homes in 91103 and 91104 often have original lighter roof framing. Adding a 150-pound battery plus inverter vibration without checking the joists and ridge beam leads to cracked lumber and failed torque specs. We assess the roof before we quote the battery.
- Undersized 100-amp panels that PWP won’t approve. Many mid-century homes in 91107 still have the original 100-amp service. PWP won’t grant grid-tied interconnection for a battery on an undersized panel. You’ll need a service upgrade first, which runs $2,500-$5,000 in Pasadena, and we quote that as part of the whole job so there are no mid-project surprises.
Pricing for Solar Battery Storage & Backup in Pasadena, CA
A single battery retrofit on an existing Pasadena solar system runs $9,000-$14,000. A new solar-plus-battery install lands between $16,000 and $32,000, depending on array size and battery count. The biggest variables in Pasadena are whether you need a panel upgrade, whether your roofline triggers Design Review, and how much PWP’s current net metering agreement credits your export. The price we quote is the price you pay. Take two weeks. Think about it. The price will be the same. Call (877) 550-6892 for a free estimate built off your actual PWP bill.
We Also Serve Cities Near Pasadena
Beyond Pasadena, we regularly work in South Pasadena, San Marino, Altadena, and East Pasadena. Each has its own utility and permitting quirks, but the same crew and the same standards apply. If you’re in one of these nearby cities, call (877) 550-6892 and we’ll tell you straight what your project needs.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena
PWP’s current net metering agreement credits exported solar at a rate below the retail rate, which means the payback on a battery in Pasadena comes primarily from avoiding peak-time-of-use charges rather than from export credits. For most Pasadena homes, a battery shifts payback from roughly 6-9 years without storage to 8-12 years with storage, depending on how much you shift your usage. We’ll run the exact numbers off your PWP bill before you sign anything. Call (877) 550-6892 for a free estimate.
Yes. Every grid-tied battery installation in Pasadena requires both a city building permit and PWP interconnection approval, including a PWP-specific net metering agreement for the battery. PWP’s Permission to Operate is the last step before your system goes live, and it runs on PWP’s calendar, not SCE’s. We file both applications in parallel so the timelines overlap, not stack.
Most 100-amp panels in Pasadena will not pass PWP interconnection for a whole-home battery, especially if you’re adding a Tesla Powerwall with full backup capability. You’ll typically need a 200-amp service upgrade, which runs $2,500-$5,000 in Pasadena. We assess the panel before we quote the battery, so you know the total number on day one.
Pasadena’s location at the base of the San Gabriel Mountains funnels Santa Ana winds through the city seasonally, and those wind gusts put real stress on rooftop racking. We use higher torque specs and wind-rated mounting hardware on Pasadena roofs than installers working in flatter, more sheltered coastal markets. The panels that charge your battery need to stay put through a 60-mph gust, and we build for that.
No, you don’t redo the entire application, but you do need an amendment filed and approved by PWP. The amendment updates your net metering agreement to include the battery and its inverter. PWP processes these amendments on their own timeline, usually 4-8 weeks, and we handle the full filing so you don’t have to chase it. Call (877) 550-6892 if you want us to check whether your system qualifies for a streamlined amendment.
Call Gus’s Solar for Battery Backup in Pasadena
If you want a battery backup system installed right, with the PWP paperwork done properly and the roof checked before the quote, call (877) 550-6892. Gus Petrakis will answer. We’ll give you a straight price, a real timeline, and no pressure to sign tonight. If a salesman needs an answer tonight, the answer is no. Take two weeks. The price will be the same.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Pasadena with solar and battery storage since 2011.






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