FranklinWH battery installers in San Antonio, TX.

What a FranklinWH system actually is

FranklinWH is two products that only make sense together: the aPower 2 battery and the aGate controller that sits between your solar, the grid, the battery and, if you have one, a generator. Because the system is AC-coupled it does not care whose inverter is on your solar, which makes it the cleanest whole-home retrofit in this comparison. Each aPower 2 is a large single block with a high continuous output, and the aGate can manage a stack of them. The trade-off is that the controller is the product — a quote that treats it as an optional extra has misunderstood what you are buying.

• aPower 2 — Large single block, stackable behind one controller. AC-coupled LFP battery with its own inverter — the storage half of the system.
• aGate — One per home. The energy management center that integrates solar, grid, battery and generator, meters the home and sheds loads in an outage.
• Smart Circuits and generator input — Optional. Per-circuit control of critical loads, and a generator input so a portable or standby unit recharges the battery.

FranklinWH at a glance — sourced

• Current FranklinWH line-up in the US: aPower 2 (15 kWh usable). source
• FranklinWH is AC-coupled: it sits beside the existing solar inverter, which stays in place on a retrofit. source
• Usable capacity runs from 15 kWh to 225 kWh. source
• Capacity can be added later without replacing the inverter. source
• The manufacturer warranty is 15 years. source
• It works with inverters from other brands, not only FranklinWH's. source
• Listed models are certified to UL 9540, the safety standard permit offices and utilities check for home storage. source

A good fit in San Antonio if…

• Homes with existing solar that want whole-home backup without replacing a working inverter
• Households in outage-prone areas that want a generator folded into the same system
• Buyers who want load management and per-circuit control, not just storage
• Larger homes where one big block covers the evening peak and a second covers the outage plan

Look at something else if…

• You are buying solar and storage together and want the simplest single-box install
• You want capacity in small increments rather than large blocks
• You do not need whole-home backup and would rather not pay for the controller
• Wall space is tight — the block and the controller both need room

Why the installer matters more than the battery

The hardware is rarely the problem on a bad battery install — the design, the panel work and the commissioning are. Installers are vetted before they join — typically 2+ years in business with a track record of decent reviews. Your San Antonio inquiry goes to 2-3 of them, and nobody else.

What specifically goes wrong on a FranklinWH install

• The aGate placement relative to the main service panel is the design decision that decides how much electrical work the job needs
• AC coupling means existing solar has to be metered through the controller correctly, or self-consumption never performs as modeled
• Load-shedding priorities configured wrong at commissioning leave owners surprised by what dropped during the first outage
• Generator inputs need a compatible generator and a transfer arrangement the installer actually designs, not a socket on the wall
• Large units need a solid mounting surface and a location that stays inside the operating temperature range

This is exactly what we vet for — get my FranklinWH quotes in San Antonio.

Comparing FranklinWH quotes in San Antonio

We don't publish price bands, because installed prices move constantly and depend on your roof, service panel and utility. What we can tell you is what to hold constant so three quotes are actually comparable — match these first, then compare dollars per usable kWh.

1. Whether the aGate is quoted as the core of the system or as an add-on — it is the core
2. How many aPower 2 units, and whether the stack is sized to your outage plan or to your evening peak
3. Whether generator integration is included, and what kind of generator the design assumes
4. How your existing solar inverter is being metered through the aGate, which decides how well self-consumption works
5. Panel work: whether the aGate replaces or sits beside your main service panel

A cheaper quote that skips backup hardware, assumes an inverter you don't have, or quietly changes the configuration isn't cheaper — it's a different job.

Want three FranklinWH quotes you can actually compare? Your inquiry goes to up to 3 vetted installers in San Antonio, all quoting the same scope.

Battery incentives in Texas

• Residential Clean Energy Credit (IRC §25D) (federal) — The 30% federal tax credit for home solar and battery storage no longer applies to systems placed in service from January 1, 2026. What ended and what still applies
• Texas — no state battery program has been verified on this site yet. Ask each installer what City of San Antonio - (TX) offers and to show the program page.

The San Antonio numbers

San Antonio's 68 ZIP codes sit mostly on City of San Antonio - (TX), a publicly owned utility whose interconnection rules and rate plans are set by its own board rather than by the Texas utility commission. For a FranklinWH system that matters at quote stage: ask each installer how City of San Antonio - (TX) handles a battery interconnection and what it credits for exported energy, because the answer can differ from the investor-owned utilities elsewhere in Texas.

City of San Antonio - (TX)'s residential rate averages about 12.4¢ per kWh on the 2024 OpenEI utility rate file — among the lower rates in the country. That shifts the case for a FranklinWH in San Antonio toward backup and toward whatever time-of-use or export terms City of San Antonio - (TX) offers, rather than toward shaving a flat bill; an installer whose savings figure ignores that is not quoting San Antonio.

With 1,526,656 residents across Bexar County, San Antonio is one of the largest battery markets in the country, and the FranklinWH installer pool is deep enough to be selective: prefer the crew that can show FranklinWH jobs on your utility and your kind of home over the one with the fastest quote.

NASA POWER's climatology puts San Antonio at 4.8 peak sun hours a day — solid solar territory, with a real gap between the best and worst months. Size a FranklinWH against the winter figure below, not the annual average.

San Antonio swings from about 6.7 peak sun hours in Jun to 2.8 in Dec — roughly 2.4× more generation in the best month than the worst. On a 10 kW array that is around 57 kWh a day in Jun against 23.8 kWh in Dec. Size a FranklinWH on the winter figure: FranklinWH is large blocks, stackable, so the honest question at quote stage is what it can actually refill on a 23.8 kWh day, not what it holds on paper.

FranklinWH vs Tesla Powerwall 3

• Where FranklinWH wins — A cleaner retrofit onto any existing solar, generator integration and load shedding in the base design, a larger single block with more continuous output, and a longer warranty framing.
• Where FranklinWH loses — No integrated solar inverter for a new install, more hardware on the wall, a thinner installer base than Tesla, and a system that is harder to justify if you only want a small battery.

We don't sell batteries, so we have no reason to talk one up.

What owning a FranklinWH is actually like

Spec sheets stop being interesting about a week after install. These are the things owners notice in year one.

• The app shows the whole home’s energy flow, not just the battery, because the aGate is metering everything — owners tend to use it more than a battery-only app.
• Generator integration is the feature owners in hurricane and wildfire country talk about most: the battery covers the short outages and the generator recharges it through the long ones.
• Load shedding means the system decides what to drop when the battery runs low, which is a comfort in an outage and something to configure deliberately on day one.
• The warranty is framed around energy throughput as well as years, so a household that cycles the battery hard should understand how that is counted.

Four questions to ask any FranklinWH quote

1. Is the aGate in this quote, and where does it sit relative to my main panel?
2. How is my existing solar being metered through the system?
3. Which loads shed first when the battery runs low, and can I change that?
4. If I add a generator later, what has to be true about it for the system to accept it?

Grid connection in San Antonio

• City of San Antonio - (TX) interconnection — a battery in San Antonio needs an interconnection application with City of San Antonio - (TX). A good installer files it, confirms the UL 9540 listing on the exact FranklinWH model quoted, and flags any constraint in the quote — not after.
• Electrical permit and inspection — the install needs an electrical permit from the local permitting authority and an inspection before it is switched on. Ask whether permit fees and the inspection are inside the FranklinWH quote.
• Backup scope is a design decision — whole-home versus a backup sub-panel depends on your main service panel and the transfer hardware, not on the battery alone. Have the circuits that stay live listed by name on the quote.

Ready for FranklinWH quotes in San Antonio?

See what 3 vetted installers would quote a FranklinWH in San Antonio — ZIP code in, quotes out.

Get my FranklinWH quotes for San Antonio

Areas served around San Antonio

Matching covers the wider San Antonio area, not just the center — inquiries route on your ZIP code.

ZIP codes in San Antonio: 78023, 78223, 78221, 78258, 78264, 78251, 78224, 78247, 78259, 78249, 78216, 78219, 78222, 78227, 78257, 78228, 78218, 78073, 78211, 78217, 78240, 78230, 78250, 78233, 78232, 78214, 78112, 78242, 78238, 78210, 78207, 78237, 78256, 78220, 78209, 78201, 78212, 78254, 78245, 78229, 78226, 78213, 78252, 78234, 78266, 78109, 78248, 78255, 78244, 78204, 78260, 78202, 78225, 78235, 78253, 78231, 78203, 78239, 78205, 78215, 78208, 78015, 78056, 78261, 78236, 78154, 78263, 78243.

Nearby places we match in:

• Balcones Heights (78201) · 2.4 mi from San Antonio
• Olmos Park (78212) · 2.4 mi from San Antonio
• Alamo Heights (78209) · 3.7 mi from San Antonio
• Castle Hills (78213) · 4.3 mi from San Antonio
• Terrell Hills (78209) · 4.8 mi from San Antonio
• Leon Valley (78238) · 5.8 mi from San Antonio
• Lackland AFB (78236) · 7.7 mi from San Antonio
• Kirby (78219) · 8.4 mi from San Antonio
• Hill Country Village (78232) · 8.6 mi from San Antonio
• Shavano Park (78231) · 8.6 mi from San Antonio
• Windcrest (78239) · 9.3 mi from San Antonio
• Hollywood Park (78232) · 9.7 mi from San Antonio
• China Grove (78263) · 11.8 mi from San Antonio
• Helotes (78023) · 12.3 mi from San Antonio
• Live Oak (78233) · 12.8 mi from San Antonio
• Converse (78109) · 13.7 mi from San Antonio
• Grey Forest (78023) · 14.2 mi from San Antonio
• Macdona (78002) · 14.4 mi from San Antonio
• Universal City (78148) · 14.4 mi from San Antonio
• Von Ormy (78073) · 15.1 mi from San Antonio
• Selma (78154) · 15.2 mi from San Antonio
• Cross Mountain (78255) · 15.4 mi from San Antonio
• Randolph AFB (78148) · 15.5 mi from San Antonio
• Timberwood Park (78260) · 16.7 mi from San Antonio
• Schertz (78154) · 17.9 mi from San Antonio
• Somerset (78069) · 18.0 mi from San Antonio
• Garden Ridge (78266) · 18.4 mi from San Antonio
• Scenic Oaks (78006) · 18.8 mi from San Antonio
• Elmendorf (78112) · 18.9 mi from San Antonio
• St. Hedwig (78152) · 19.3 mi from San Antonio
• Cibolo (78108) · 19.9 mi from San Antonio
• LaCoste (78039) · 20.2 mi from San Antonio
• Sandy Oaks (78112) · 20.6 mi from San Antonio
• Fair Oaks Ranch (78015) · 20.8 mi from San Antonio
• Castroville (78009) · 21.1 mi from San Antonio
• Bulverde (78163) · 22.2 mi from San Antonio
• Lytle (78052) · 22.6 mi from San Antonio
• Zuehl (78124) · 22.6 mi from San Antonio
• Santa Clara (78124) · 23.7 mi from San Antonio
• Marion (78124) · 24.2 mi from San Antonio
• New Berlin (78155) · 25.0 mi from San Antonio
• La Vernia (78121) · 25.2 mi from San Antonio

FranklinWH installers across Texas, town by town

Every FranklinWH page in Texas, nearest to San Antonio first.

Comparing with the nearest big city? FranklinWH battery installation Houston

• FranklinWH battery installers in New Braunfels — 30 mi
• FranklinWH battery installers in Austin — 74 mi
• FranklinWH battery installers in Round Rock — 89 mi
• FranklinWH battery installation Georgetown — 97 mi
• FranklinWH installers Killeen — 121 mi
• FranklinWH battery installation Corpus Christi — 144 mi
• FranklinWH battery installers in Laredo — 144 mi
• FranklinWH installers College Station — 154 mi
• FranklinWH battery installers in Waco — 165 mi
• FranklinWH installers Sugar Land — 174 mi
• FranklinWH battery installers in San Angelo — 178 mi
• FranklinWH battery installers in Conroe — 191 mi
• FranklinWH battery installation Pearland — 193 mi
• FranklinWH battery installation Pasadena — 203 mi
• FranklinWH battery installers in League City — 206 mi
• FranklinWH installers Abilene — 219 mi
• FranklinWH installers Edinburg — 219 mi
• FranklinWH installers McAllen — 224 mi
• FranklinWH installers Arlington — 239 mi
• FranklinWH installers Fort Worth — 240 mi
• FranklinWH battery installers in Grand Prairie — 240 mi
• FranklinWH battery installers in Brownsville — 249 mi
• FranklinWH battery installation Irving — 252 mi
• FranklinWH battery installers in Dallas — 252 mi
• FranklinWH battery installers in Mesquite — 255 mi
• FranklinWH battery installers in Carrollton — 262 mi
• FranklinWH battery installers in Garland — 263 mi
• FranklinWH installers Lewisville — 264 mi
• FranklinWH battery installation Richardson — 265 mi
• FranklinWH battery installation Beaumont — 266 mi
• FranklinWH installers Plano — 269 mi
• FranklinWH installers Denton — 272 mi
• FranklinWH battery installers in Frisco — 274 mi
• FranklinWH installers Allen — 275 mi
• FranklinWH battery installers in Tyler — 275 mi
• FranklinWH battery installers in Midland — 277 mi
• FranklinWH battery installers in McKinney — 281 mi
• FranklinWH battery installers in Odessa — 282 mi
• FranklinWH battery installers in Wichita Falls — 307 mi
• FranklinWH battery installers in Lubbock — 345 mi
• FranklinWH battery installation Amarillo — 441 mi
• FranklinWH battery installation El Paso — 498 mi

Beyond FranklinWH in San Antonio

Comparing FranklinWH with another brand in San Antonio? See Tesla Powerwall battery installers in San Antonio, Enphase battery installers in San Antonio, SolarEdge battery installation San Antonio, Sigenergy installers San Antonio.

FranklinWH questions, San Antonio answers

Does FranklinWH work with solar from another brand in San Antonio?

Yes — this is the main reason to choose it. The system is AC-coupled and FranklinWH states the aGate is compatible with micro- and string inverters from the major brands, so your existing solar keeps its inverter and the aGate meters it. Ask the installer to confirm your specific inverter model against FranklinWH’s compatibility list before you sign.

Is the aGate really necessary for a San Antonio home?

It is the product. The aPower 2 is a strong battery on its own, but everything that distinguishes FranklinWH — whole-home management, load shedding, generator integration, metering of your existing solar — lives in the aGate. A quote without one is quoting a different, lesser system.

Can FranklinWH work with a generator in San Antonio, TX?

Yes, and it is one of the strongest reasons to pick it in hurricane, wildfire and ice-storm country. The aGate has a generator input so a standby or portable generator can recharge the battery during a long outage, with the battery covering the short ones on its own. The generator has to be compatible and the transfer arrangement designed properly — ask for both in writing.

How many aPower 2 units do I need if I live in San Antonio?

One large block covers the evening peak and a short outage for most homes; a second is what turns it into a multi-day backup plan for a house with central air. The aGate can manage a stack of units, so you can start with one and add later. Ask the installer to size to your outage plan, not just your bill.

Is the FranklinWH aPower 2 UL 9540 listed for San Antonio households?

FranklinWH lists the aPower 2 as certified to UL 9540 and UL 9540A among its safety standards, which is what most permitting authorities and utilities require on a residential storage application. Your installer files the listing with the permit and interconnection paperwork.

Will FranklinWH run my whole house in an outage across San Antonio?

That is what it is designed to do, within the limits of your battery capacity. The aPower 2 has a high continuous output and the aGate sheds lower-priority loads as the battery runs down, so the house stays live on what matters. Whether it lasts through the night depends on how many units you have and what is running — ask for a load model, not a promise.

Do I need a FranklinWH certified installer in San Antonio?

FranklinWH runs its own certified-installer program, and because the aGate is doing electrical work at the service panel, you want someone who has commissioned several of them. Ask the crew how many FranklinWH systems they have installed and whether the aGate placement they are proposing is the one they have done before.

Who installs FranklinWH batteries in San Antonio?

We match your inquiry with 2-3 vetted installers serving San Antonio — typically 2+ years in business, with a track record of decent reviews, checked on state licensing and trading history, and carrying FranklinWH certification where they have it. You get 2-3 of them and nobody else does. Free for homeowners.

How do I compare FranklinWH quotes in San Antonio?

Installed prices move constantly and vary by site, so compare on dollars per usable kWh rather than headline totals — and only once the scope matches. For this brand the variables that matter are: whether the aGate is quoted as the core of the system or as an add-on — it is the core; how many aPower 2 units, and whether the stack is sized to your outage plan or to your evening peak; whether generator integration is included, and what kind of generator the design assumes. Get all three quotes on the same scope, then compare the installers harder than the numbers.

What battery incentives apply in San Antonio?

The federal Residential Clean Energy Credit ended for systems placed in service after December 31, 2025, so a 2026 FranklinWH install in San Antonio does not get the old 30% credit — a quote that still shows it needs re-pricing. No Texas battery program has been verified on this site yet; ask each installer what your utility offers and to show the program page, not a brochure line.

What does City of San Antonio - (TX) need to approve for a FranklinWH in San Antonio?

A battery in San Antonio needs an interconnection application with City of San Antonio - (TX) and an electrical permit from the local authority, and a good installer files both and flags any constraint in the quote — not after. What gets scrutinized depends on the configuration: the aGate placement relative to the main service panel is the design decision that decides how much electrical work the job needs. Ask the installer to confirm the UL 9540 listing on the exact model quoted, which is what the utility and the permit office check.

Are your San Antonio installers FranklinWH-certified?

Certification is one of the things we look at, and where a FranklinWH-certified installer covers San Antonio you'll see that in the match. It is deliberately not the only filter — a current certification says the installer has done the brand's training, not that they wire a good panel or come back in year three. Every installer serving San Antonio is vetted on the same bar set out above before they join. Ask the ones you're matched with what FranklinWH work they've actually done, and how much of it, before you sign.

Is a FranklinWH battery worth it in San Antonio?

San Antonio averages 4.8 peak sun hours, so a 10 kW rooftop array generates roughly 40.8 kWh on an average day — enough to cycle a FranklinWH on most days of the year. Texas runs its own grid, and the winter storm and summer peak events that have stressed it are the outages homeowners here plan around. Whether the bill side stacks up depends on what City of San Antonio - (TX) credits for exported solar against what it charges you — City of San Antonio - (TX) averaged about 12.43¢/kWh for residential customers in 2024 — so ask each installer to show that gap on your own rate plan.

Answered what you needed?

Get your 2-3 vetted FranklinWH quotes for San Antonio — free, no obligation.

Get my FranklinWH quotes for San Antonio