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Fast, Reliable Solar Battery Storage & Backup Across Pasadena
Adding a battery to your solar system in Pasadena means your lights stay on when Pasadena Water and Power’s grid goes down, and your stored power works for you during peak-rate hours. A typical whole-home backup installation in Pasadena runs $12,000 to $18,000 before incentives, depending on whether you need one battery or two, and whether your existing electrical panel needs an upgrade to pass PWP’s interconnection review. We quote real numbers off your actual bill, not a brochure.
If you’re in Pasadena and want straight answers about battery storage, call Gus’s Solar at (877) 550-6892. A live person picks up, day or night.
Key takeaways:
- Every grid-tied battery in Pasadena goes through Pasadena Water and Power’s municipal interconnection process, which has its own queue, inspection calendar, and Permission to Operate timeline. It is not the same as SCE territory, and quoting an SCE-style timeline is how homeowners end up waiting months longer than promised.
- Older Pasadena homes, especially the pre-WWII Craftsman bungalows in 91103 and 91104, often need a service panel upgrade before PWP will approve battery interconnection.
- Santa Ana wind events funnel through the San Gabriel foothills into Pasadena seasonally, which is when backup power matters most here.
- We retrofit batteries onto existing solar systems from Tesla, Enphase, SolarEdge, SunPower, and FranklinWH, and we coordinate the entire PWP process in one mobilization.
Why Gus’s Solar Is Pasadena’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis founded Gus’s Solar in 2011, and he still answers his own phone. That matters in Pasadena, where homeowners have been burned by out-of-state crews that quote one number on the patio and a different one at the door. Gus publishes his name, his address, and his license number. If something isn’t right on a battery job, the 90-Day Done Right Promise means one call brings him back, in writing, on every job.
We’ve worked our way through PWP’s interconnection process enough times to know its rhythms. When you call our Solar Battery Storage & Backup team about a project in Pasadena, you’re talking to people who understand what the utility will ask for, what the city’s inspectors will flag, and what the honest timeline looks like. That’s the difference between a battery that’s actually running and one that’s sitting in a garage waiting on paperwork.
Our technicians are background-checked, uniformed, and on Gus’s own payroll. We don’t hand Pasadena work off to subcontractors. The crew that shows up at your door on Fair Oaks or Washington Boulevard is the same crew that will be back if you ever need service. And a live person answers calls 24/7, not a voicemail tree.
Our Solar Battery Storage & Backup Services in Pasadena
Tesla Powerwall Installation
We install Tesla Powerwall 2 and Powerwall 3 systems throughout Pasadena, from the historic districts to the newer subdivisions east of the 210. A Powerwall 3 installation in Pasadena typically runs $11,000 to $14,000 for the first unit including gateway hardware and PWP interconnection paperwork. When you add storage to a home in 91104 or 91103, we factor in panel-loading and roof-structure review up front, because those older Craftsman roofs don’t always pass structural review on the first pass.

Enphase IQ Battery Installation
The Enphase IQ Battery 5P is a good fit for Pasadena homes with existing Enphase microinverter systems, and we stock the hardware locally so turnaround is fast. Expect $9,000 to $12,000 for a single IQ Battery 5P installation, depending on whether your existing Enphase system needs a system controller upgrade to support backup. Homes in Pasadena’s mid-century ranch neighborhoods, like many in 91107, often have the right roof geometry but undersized original panels, so we check that before quoting.

Whole-Home Backup Power
Whole-home backup in Pasadena means sizing the battery bank to carry your AC, refrigerator, well pump if you’re on the eastern edge toward the foothills, and whatever else you can’t live without during a Santa Ana-driven outage. Two Powerwalls or two FranklinWH aPower batteries typically cover a Pasadena home of 2,000 to 2,500 square feet. Plan on $22,000 to $30,000 all-in for a whole-home setup with two batteries, including the PWP service upgrade if your panel is undersized.

Battery Retrofit for Existing Solar
This is our most common request in Pasadena. Homeowners who installed solar five or eight years ago, before battery economics made sense, now want storage added. We retrofit batteries onto existing systems from SolarEdge, Enphase, SunPower, and Tesla. The retrofit itself usually runs $10,000 to $15,000 for one battery, but the thing that catches Pasadena homeowners off guard is the PWP interconnection process. We handle the application, the site inspection, and the Permission to Operate paperwork so you’re not chasing the utility yourself. Bring me a bill, I’ll bring you the math.

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 industry’s established equipment lines, including Tesla, Enphase, SolarEdge, Panasonic, and FranklinWH. We keep common battery hardware and balance-of-system parts in local stock, so a Pasadena customer waiting on a replacement battery module or a gateway swap isn’t waiting on a shipment from across the country. If you have an existing system from one of these brands and want to add storage, we’ll tell you honestly whether a retrofit makes sense or whether a fresh start with a FranklinWH aPower or Tesla Powerwall 3 is the better long-term move.
Common Solar Battery Storage & Backup Problems We See in Pasadena Homes
- Quoted on an SCE-style timeline. Installers who work mostly SCE territory tell a Pasadena homeowner to expect Permission to Operate in a few weeks. PWP’s queue and inspection calendar can add months, especially when a service upgrade on an older panel is involved. We quote the real PWP timeline from day one.
- Battery retrofit without checking roof framing. A pre-WWII Craftsman in Bungalow Heaven or Garfield Heights often has original lighter roof framing. Adding panel loading from a tile roof or original sheathing can fail structural review and force a costly redesign. We check this before you sign anything.
- Undersized backup plan for Santa Ana outages. If a battery is sized only for solar self-consumption, the first sustained Santa Ana outage reveals it can’t carry the whole-house load you expected. We design for the actual outage scenario, not just the NEM optimization math.
- PWP net metering confusion. Adding a battery can change how your PWP net metering agreement and true-up period interact with your usage. If nobody reconciles this before the install, you can end up with a battery that never discharges the way you intended. We run the numbers on your actual PWP bill first.
In Bungalow Heaven, our crew installed a Tesla Powerwall 2 alongside an existing 4.8 kW SolarEdge system on a 1922 Craftsman whose original 100A panel couldn’t pass PWP’s interconnection requirements. We coordinated the PWP service upgrade, the solar battery retrofit, and the utility inspection signing off on rapid shutdown, all in one mobilization so the homeowners never lost backup readiness during the Santa Ana season.
Pricing for Solar Battery Storage & Backup in Pasadena, TX
Battery storage pricing in Pasadena breaks down like this: a single Tesla Powerwall 3 with installation and PWP interconnection runs $11,000 to $14,000. An Enphase IQ Battery 5P retrofit on an existing Enphase system runs $9,000 to $12,000. A whole-home backup system with two batteries runs $22,000 to $30,000 including any required PWP service upgrade. A service panel upgrade on an older Pasadena home, when required, adds $2,500 to $5,000 depending on the amperage and whether overhead or underground service is involved.
What moves the number: whether your existing solar inverter is battery-compatible, whether your home is in a historic district that triggers additional review, and whether your panel needs replacing. We give you the price in writing, and it’s the price you pay. No signature wanted tonight. Take two weeks. Think about it. The price will be the same.
Call (877) 550-6892 for a free estimate on battery storage in Pasadena. A live person answers.
We Also Serve Cities Near Pasadena
Beyond Pasadena itself, we serve Deer Park, South Houston, Webster, and La Porte. If you’re just outside Pasadena’s city limits and still on Pasadena Water and Power, or if you’re on CenterPoint in a neighboring community, we handle the utility paperwork either way. Call (877) 550-6892 and we’ll tell you what applies.
Serving Pasadena, TX - 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 runs its own interconnection queue, its own inspection scheduling, and its own Permission to Operate process, completely separate from SCE. Adding a battery to an existing Pasadena solar system requires a new PWP interconnection application, and the timeline depends on PWP’s calendar, not SCE’s. Expect the process to take longer than an SCE job, and expect a utility inspection specific to PWP’s requirements. Call (877) 550-6892 and we’ll walk you through the current PWP timeline for your project.
Often yes. Many Pasadena homes built before WWII still have 100A panels, and PWP will not approve battery interconnection on an undersized panel. A 200A service upgrade is typically required, and in some Pasadena neighborhoods underground service means the upgrade costs more and takes longer to schedule. We identify this during the estimate so it’s in the price from day one. Call (877) 550-6892 for a free check of what your panel will require.
Your existing PWP net metering agreement remains in place, but adding a battery changes the economics of how you use that agreement. With storage, you can shift exported solar into evening usage, and you may want to re-time your true-up calculations. We reconcile the battery size against your actual PWP usage data so the system does what you expect. Call (877) 550-6892 and bring a bill. We’ll do the math together.
Yes. Pasadena’s Craftsman bungalows, particularly in Bungalow Heaven and the historic districts of 91103 and 91104, often have original lighter roof framing that wasn’t designed for modern panel loading. Adding battery storage means adding panels in some cases, and that additional load can fail structural review. We assess roof structure before quoting so you’re not paying for a redesign after the permit comes back with comments. Call (877) 550-6892 for an honest look at your roof.
Santa Ana winds are the primary driver of extended outages in Pasadena, and they arrive fast. Your battery needs to be sized for the loads that actually run during an outage, which usually means the whole HVAC system during a hot, dry Santa Ana event, not just the refrigerator and a few lights. We design whole-home backup in Pasadena for the real outage scenario, and we anchor roof-mounted equipment to higher torque specs because of the canyon wind patterns. Call (877) 550-6892 and we’ll look at your actual usage during Pasadena’s wind season.
Contact Gus’s Solar for Battery Storage in Pasadena
If you’re in Pasadena and you want a battery backup that actually works when the power goes out, call Gus’s Solar at (877) 550-6892. We’ll come out, look at your roof, your panel, and your PWP bill, and give you a written price that reflects Pasadena’s real permitting and interconnection process. Seniors and veterans get a 10% discount that never expires. Free second opinion on any written estimate. No trip charge inside our county. If a salesman needs an answer tonight, the answer is no. Take two weeks. We’ll still be here.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Pasadena since 2011.






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