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 Solar Battery Storage & Backup Across Delano
Solar battery storage in Delano typically costs between $11,000 and $18,500 installed before incentives, with most retrofits on existing solar arrays landing closer to $9,500-$14,000. Gus’s Solar has been wiring battery backups into Delano homes since before most national installers even offered them, and we know exactly what these 1950s-era panels, tule-fog winters, and 110°F summers demand from a backup system. We also offer EV Charger Installation - Delano for homeowners adding electric vehicles. Call (877) 550-6892 and Gus Petrakis will give you straight numbers off your actual utility bill, not a brochure estimate.
Why Gus’s Solar Is Delano’s Preferred Solar Battery Storage & Backup Company
We are the locally owned crew that shows up when Delano homeowners need a battery retrofitted onto an aging array, a whole-home backup configured for PG&E time-of-use rates, or an honest answer about whether their 100A panel can even handle a Solar Battery Storage & Backup system. Gus Petrakis founded this company in 2011, and his name is on the truck, the quote, and the warranty. When you call, a live person answers. Not a voicemail. Not a call center three states away.
Our Delano customers have told us the same story for years: a door-knocker quoted one number, then the paperwork showed another. We do not work that way. Bring us a bill, we will bring you the math. Take two weeks. Think about it. The price will be the same. If a salesman needs an answer tonight, the answer is no. That is how we have built a reputation across Delano without a single high-pressure pitch.
We employ background-checked, uniformed technicians who live in the Central Valley and know Delano’s grid, its neighborhoods, and its housing stock. Dispatch is coordinated from our Fresno office, but crews serve Delano locally, and we can typically be at your door the same day for a battery issue. Every job carries our 90-Day Done Right Promise in writing. If it is not right, Gus makes it right.
Our Solar Battery Storage & Backup Services in Delano
Tesla Powerwall Installation
A Tesla Powerwall installed in Delano runs $12,500-$16,800 for the first unit, including gateway and electrical work. That price assumes your panel can handle the load, which on many older Delano homes it cannot without an upgrade. We will tell you that before you sign anything. We stock Tesla Powerwall hardware for Delano customers and can usually schedule installation within two to three weeks.

Enphase IQ Battery Installation
The Enphase IQ Battery is a strong fit for Delano homes with existing Enphase microinverter arrays, and a single 5P unit typically costs $8,500-$11,200 installed. We have retrofitted these onto 1960s-era ranches throughout Delano, including homes off 11th Avenue and Cecil Avenue where panel upgrades were required first. The modular design means you can start smaller and add capacity later without re-engineering the whole system.

Whole-Home Backup Power
Whole-home backup in Delano usually requires two to three battery units plus a 200A service upgrade, landing between $22,000 and $34,000 depending on your array size and HVAC load. A single battery will not start a central AC compressor on a 110°F July afternoon. Anyone who tells you otherwise has not spent a summer in the San Joaquin Valley. We size systems for your real usage, not a generic square-footage formula.

Battery Retrofit for Existing Solar
Most Delano battery installations we do are retrofits onto arrays that were installed five to ten years ago, before batteries made financial sense. Retrofit pricing runs $9,500-$14,000 including a critical-loads subpanel or smart load management. On a 1960s home near Delano High School, we retrofitted an Enphase IQ Battery onto an existing grid-tied array after the homeowner’s 100A panel struggled to handle backup loads, and we later handled the Delano Solar Panel Repair when seasonal soiling caused issues. Our crew ran a new 200A service upgrade, reconfigured the battery for whole-home backup, then walked the owner through the NEM 3.0 time-of-use settings so their banked credits would cover winter tule-fog weeks.

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 Delano
We work with Tesla, Enphase, SolarEdge, and FranklinWH battery platforms, and for solar panels we install Qcells, REC, and Panasonic. We keep common parts and components in local stock so Delano customers are not waiting on a warehouse in Sacramento when a gateway needs replacement. If you already have a system from any of these brands and want battery storage added, we service what we install and we service what others installed too. A live person answers the phone 24/7, so when something acts up at 9:00 PM, you talk to a human who knows your system.
Common Solar Battery Storage & Backup Problems We See in Delano Homes
- Undersized 100A panels on 1950s-1990s homes. Many Delano homes were built with 100A or smaller electrical service. When a battery tries to start a central AC unit during a 110°F afternoon, the breaker trips. We include panel upgrade assessment in every Delano battery quote, because ignoring it leads to a backup system that fails exactly when you need it.
- Aging composition-shingle roofs and winter tule-fog rain. Roof penetrations around battery conduit and disconnects leak if the flashing was not done properly. Delano’s winter fog season brings steady moisture, and homes with 30-year-old shingles need a structural assessment before any battery equipment goes on the roof or wall.
- Fall harvest dust and cotton chaff coating panels. In October, fine dust from surrounding table-grape vineyards and cotton fields can coat panels enough in a single week to drop measurable output. When production drops, batteries draw down faster than expected, and homeowners call us confused about why their backup is draining. We build soiling-loss expectations into every Delano proposal.
- NEM 3.0 time-of-use confusion. Delano homeowners who had solar under NEM 2.0 often do not realize how much export rates dropped under NEM 3.0. A battery only pencils out if it is programmed to charge and discharge on the right schedule. We configure time-of-use settings for PG&E’s current rate structure and explain the math in plain English.
Pricing for Solar Battery Storage & Backup in Delano, CA
A single battery installation in Delano runs $8,500-$16,800 depending on brand and whether a panel upgrade is needed. Whole-home backup with two or three batteries and a 200A service upgrade lands between $22,000 and $34,000. Battery replacement for an older or failed unit typically runs $7,000-$11,000, and expanding an existing system costs $6,500-$9,500 per additional battery module. What actually moves the number in Delano: the age of your electrical panel, whether your roof needs structural work before mounting equipment, and whether you qualify for DAC-SASH income-qualified incentives. Seniors and veterans get a 10% discount that never expires, and we offer $40 off any repair over $200 plus a free second opinion on any written estimate.
No trip charge inside our own county. Call (877) 550-6892 for a free estimate built off your actual bill, not a template.
We Also Serve Cities Near Delano
Our crews regularly work in Delano and the surrounding Central Valley communities, including McFarland, Earlimart, Wasco, and Shafter. If you live in one of those towns and need battery storage or backup power work, the same pricing, the same 90-Day Done Right Promise, and the same live-person phone answer apply. Call (877) 550-6892.
Serving Delano, CA - Our Local Coverage Area
We’re based in the Delano 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 Delano
Delano’s dense San Joaquin Valley tule fog, typically December through mid-February, can suppress solar production for days or even weeks at a time, so your battery capacity needs to account for those winter generation gaps, not just summer peak-shaving. A system sized only for daily cycling will leave you drawing from the grid during fog weeks. We factor fog-season generation averages into every Delano battery proposal so you are not surprised by higher winter bills.
Most 100A panels on Delano’s 1950s-through-1990s homes will not safely support a Tesla Powerwall plus the loads you want backed up, and we will recommend a 200A service upgrade before installation. That upgrade typically adds $3,500-$5,500 to the project and takes one to two additional days. Call (877) 550-6892 and we will tell you what your specific panel can handle before you commit to anything.
Yes, a significant share of Delano homeowners qualify for DAC-SASH income-qualified incentives because the city holds a persistent Disadvantaged Community designation under California’s CalEnviroScreen scoring, which can offset most or all of the solar portion of a project. Battery storage eligibility under DAC-SASH is more limited and depends on your household income and whether the battery is paired with a qualifying solar installation. We will check your eligibility honestly and tell you if the numbers work before you sign.
During fall harvest, dust and fine chaff from Delano’s surrounding table-grape vineyards and cotton fields can coat panels within a week, dropping production by measurable amounts and causing your battery to draw down faster than expected. The fix is a soiling-loss conversation up front plus a cleaning schedule, not a bigger battery. We include Solar Panel Maintenance & Monitoring - Delano in every battery quote because skipping it leads to angry October phone calls.
Under NEM 3.0, PG&E’s current rate structure pays far less for solar exported during midday and charges more for electricity drawn during the 4-9 PM peak window, which means your battery should be programmed to charge during cheap midday solar hours and discharge during peak evening pricing. We configure every Delano battery installation for the specific rate schedule on your bill and explain exactly when your battery should charge, discharge, and hold reserve. Call (877) 550-6892 for an exact quote based on your actual usage.
If you live in Delano, ZIP 93215 or 93216, and you are thinking about battery storage, whole-home backup, or a retrofit on an existing system, call Gus Petrakis at (877) 550-6892. We will give you honest numbers, no pressure, and the same price two weeks from now. Free estimates. Senior and veteran discounts. A live person on the phone, 24/7.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Delano since 2011.






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