FranklinWH battery installers in Fontana, CA.

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 Fontana 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. Matching depends on current participating installers for your address and brand. There may be fewer than three or no matches. Free for homeowners.

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 Fontana.

Comparing FranklinWH quotes in Fontana

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.

Request FranklinWH quotes on the same scope, subject to participating-installer availability for your address in Fontana.

Battery incentives in California

• 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
• California — no state battery program has been verified on this site yet. Ask each installer what your verified utility offers and to show the program page.

The Fontana numbers

A delivery utility has not been verified for this Fontana page. Identify yours by the service address before checking FranklinWH interconnection, export terms or rates; an overlapping ZIP code is not enough.

The Census Bureau estimates 218,455 residents in Fontana in 2024. The city record uses San Bernardino County as its county reference and includes 5 overlapping ZIP codes. These are geographic facts, not evidence of participating FranklinWH installers or local availability.

The solar-resource sample for Fontana is at 34.109686° latitude, -117.462888° longitude. Census land-overlap records include ZIPs 92336, 92337, 92335, 92316, 91739. These locate the page data; they do not establish utility territory or installer coverage.

NASA POWER climatology gives Fontana an annual average of 5.8 peak sun hours per day. This regional solar-resource measure does not predict rooftop production or whether a FranklinWH will refill. Array size, orientation, shading, equipment losses, household use and battery settings all need a site-specific assessment.

At Fontana's coordinates, NASA POWER climatology ranges from about 8.4 peak sun hours per day in Jun to 2.9 in Dec — a 2.9× ratio in the solar resource, not a measured generation ratio. For FranklinWH, assess seasonal production and household loads together; neither the annual average nor the lowest month alone determines battery capacity or refill frequency.

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 Fontana

• Utility interconnection — A FranklinWH installation in Fontana requires checking interconnection requirements with the delivery utility for the exact address. Identify the utility from the bill or official service map. Ask the installer to identify the equipment and complete-system approvals required for the proposed configuration, file the application and flag any constraint in the quote.
• 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 Fontana?

Request FranklinWH quotes for Fontana, subject to participating-installer availability.

Get my FranklinWH quotes for Fontana

Geography around Fontana

This page covers the wider Fontana area. A quote request uses your ZIP code; matches depend on current participating installers for your address and preferred brand.

ZIP codes in Fontana: 92336, 92337, 92335, 92316, 91739.

Nearby places shown for geographic context:

• Rialto (92376) · 4.2 mi from Fontana
• Bloomington (92316) · 4.9 mi from Fontana
• Rancho Cucamonga (91730) · 6.1 mi from Fontana
• Muscoy (92407) · 7.3 mi from Fontana
• Jurupa Valley (92509) · 7.4 mi from Fontana
• Colton (92324) · 8.8 mi from Fontana
• Ontario (91761) · 9.5 mi from Fontana
• San Bernardino (92407) · 9.9 mi from Fontana
• Lytle Creek (92358) · 10.0 mi from Fontana
• Grand Terrace (92313) · 10.1 mi from Fontana
• Highgrove (92507) · 11.1 mi from Fontana
• Upland (91786) · 11.3 mi from Fontana
• San Antonio Heights (91784) · 11.7 mi from Fontana
• Eastvale (92880) · 12.2 mi from Fontana
• Riverside (92507) · 12.5 mi from Fontana
• Loma Linda (92354) · 13.2 mi from Fontana
• Montclair (91763) · 13.7 mi from Fontana
• Norco (92860) · 13.7 mi from Fontana
• Crestline (92325) · 14.2 mi from Fontana
• Chino (91710) · 14.4 mi from Fontana
• Claremont (91711) · 14.4 mi from Fontana
• Home Gardens (92879) · 16.2 mi from Fontana
• El Sobrante (92503) · 16.4 mi from Fontana
• Woodcrest (92504) · 16.8 mi from Fontana
• Highland (92346) · 17.0 mi from Fontana
• Redlands (92373) · 17.1 mi from Fontana
• Pomona (91766) · 17.4 mi from Fontana
• La Verne (91750) · 17.6 mi from Fontana
• Corona (92882) · 18.1 mi from Fontana
• Coronita (92882) · 18.3 mi from Fontana
• March ARB (92518) · 18.6 mi from Fontana
• Wrightwood (92397) · 18.8 mi from Fontana
• Chino Hills (91709) · 19.0 mi from Fontana
• El Cerrito (92881) · 19.1 mi from Fontana
• Lake Arrowhead (92352) · 19.1 mi from Fontana
• Moreno Valley (92555) · 19.6 mi from Fontana
• Oak Hills (92344) · 19.6 mi from Fontana
• San Dimas (91773) · 19.8 mi from Fontana
• Mentone (92359) · 20.2 mi from Fontana
• Lake Mathews (92570) · 20.4 mi from Fontana
• Hesperia (92345) · 21.6 mi from Fontana
• Diamond Bar (91765) · 21.6 mi from Fontana
• Mead Valley (92570) · 21.6 mi from Fontana
• Running Springs (92382) · 21.7 mi from Fontana
• Glendora (91741) · 22.1 mi from Fontana
• Charter Oak (91724) · 22.5 mi from Fontana
• Phelan (92371) · 23.1 mi from Fontana
• Walnut (91789) · 23.1 mi from Fontana

FranklinWH installers across California, town by town

Every FranklinWH page in California, nearest to Fontana first.

Comparing with the nearest big city? FranklinWH battery installers in Los Angeles

• FranklinWH battery installers in Rialto — 4 mi
• FranklinWH battery installers in Rancho Cucamonga — 6 mi
• FranklinWH battery installers in Jurupa Valley — 7 mi
• FranklinWH battery installers in Ontario — 9 mi
• FranklinWH battery installation San Bernardino — 10 mi
• FranklinWH battery installers in Riverside — 12 mi
• FranklinWH battery installers in Pomona — 17 mi
• FranklinWH battery installers in Corona — 18 mi
• FranklinWH installers Moreno Valley — 19 mi
• FranklinWH battery installers in Hesperia — 22 mi
• FranklinWH battery installation Anaheim — 24 mi
• FranklinWH battery installers in West Covina — 26 mi
• FranklinWH battery installers in Victorville — 30 mi
• FranklinWH battery installation Fullerton — 31 mi
• FranklinWH installers Orange — 32 mi
• FranklinWH battery installers in El Monte — 32 mi
• FranklinWH battery installers in Menifee — 33 mi
• FranklinWH battery installation Irvine — 35 mi
• FranklinWH installers Santa Ana — 35 mi
• FranklinWH battery installation Garden Grove — 37 mi
• FranklinWH battery installers in Pasadena — 39 mi
• FranklinWH installers Downey — 40 mi
• FranklinWH battery installers in Costa Mesa — 40 mi
• FranklinWH battery installation Murrieta — 40 mi
• FranklinWH installers Huntington Beach — 42 mi
• FranklinWH battery installers in Glendale — 45 mi
• FranklinWH battery installers in Long Beach — 47 mi
• FranklinWH installers Temecula — 47 mi
• FranklinWH battery installers in Palmdale — 50 mi
• FranklinWH battery installation Burbank — 50 mi
• FranklinWH installers Inglewood — 52 mi
• FranklinWH installers Torrance — 55 mi
• FranklinWH battery installation Lancaster — 57 mi
• FranklinWH battery installers in Oceanside — 62 mi
• FranklinWH battery installers in Santa Clarita — 63 mi
• FranklinWH installers Carlsbad — 68 mi
• FranklinWH installers Escondido — 71 mi
• FranklinWH installers Simi Valley — 75 mi
• FranklinWH battery installation Thousand Oaks — 81 mi
• FranklinWH battery installation San Diego — 91 mi
• FranklinWH battery installation El Cajon — 95 mi
• FranklinWH battery installers in Oxnard — 100 mi
• FranklinWH battery installation San Buenaventura (Ventura) — 103 mi
• FranklinWH battery installers in Chula Vista — 106 mi
• FranklinWH installers Bakersfield — 124 mi
• FranklinWH installers Santa Maria — 179 mi
• FranklinWH battery installers in Visalia — 186 mi
• FranklinWH installers Clovis — 226 mi
• FranklinWH battery installation Fresno — 227 mi
• FranklinWH battery installation Salinas — 295 mi
• FranklinWH battery installers in Modesto — 314 mi
• FranklinWH installers San Jose — 329 mi
• FranklinWH battery installers in Tracy — 335 mi
• FranklinWH battery installation Santa Clara — 338 mi
• FranklinWH battery installers in Sunnyvale — 342 mi
• FranklinWH battery installation Stockton — 343 mi
• FranklinWH battery installers in Fremont — 343 mi
• FranklinWH battery installers in Hayward — 355 mi
• FranklinWH installers Antioch — 360 mi
• FranklinWH battery installers in San Mateo — 361 mi
• FranklinWH battery installers in Oakland — 367 mi
• FranklinWH battery installers in Concord — 368 mi
• FranklinWH battery installers in Elk Grove — 369 mi
• FranklinWH battery installers in Daly City — 374 mi
• FranklinWH battery installers in Berkeley — 375 mi
• FranklinWH battery installers in Sacramento — 380 mi
• FranklinWH battery installers in Richmond — 381 mi
• FranklinWH installers Fairfield — 383 mi
• FranklinWH battery installation Vallejo — 385 mi
• FranklinWH battery installers in Roseville — 386 mi
• FranklinWH battery installation Vacaville — 386 mi
• FranklinWH battery installers in San Francisco — 400 mi
• FranklinWH battery installation Santa Rosa — 418 mi
• FranklinWH battery installers in Chico — 459 mi

Beyond FranklinWH in Fontana

Comparing FranklinWH with another brand in Fontana? See Qcells battery installation Fontana, Tigo Energy installers Fontana, HomeGrid battery installers in Fontana, MidNite Solar battery installers in Fontana, APsystems battery installers in Fontana, Fox ESS battery installers in Fontana.

FranklinWH questions, Fontana answers

Does FranklinWH work with solar from another brand in Fontana?

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 Fontana 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 Fontana, CA?

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 Fontana?

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 Fontana 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 Fontana?

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 Fontana?

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 a FranklinWH battery in Fontana?

You can request FranklinWH quotes for Fontana. Matching depends on current participating installers for your address and brand; there may be fewer than three or no matches. This city page does not establish installer availability. Free for homeowners.

How do I compare FranklinWH quotes in Fontana?

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. Compare any available quotes on the same scope, then compare the installers harder than the numbers.

What battery incentives apply in Fontana?

The federal Residential Clean Energy Credit ended for systems placed in service after December 31, 2025, so a 2026 FranklinWH install in Fontana does not get the old 30% credit — a quote that still shows it needs re-pricing. No California 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.

Who approves a FranklinWH install in Fontana?

Your electric utility, through an interconnection application, and the local permitting authority, through an electrical permit. 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.

Are your Fontana installers FranklinWH-certified?

We do not have a current participating-installer record establishing FranklinWH certification or availability for every address in Fontana. If a match is available, verify the specific crew, current license, brand training and relevant installation experience before signing.

Is a FranklinWH battery worth it in Fontana?

Fontana averages 5.8 peak sun hours in NASA POWER climatology. That does not establish household solar output, battery cycling or savings. Wildfire-season Public Safety Power Shutoffs and summer heat-wave grid strain are the outages homeowners here plan around. Ask for a site-specific production and load assessment, plus the import price and export credit on your actual plan. Confirm the delivery utility and any separate retail provider for your address.

Answered what you needed?

Request FranklinWH quotes for Fontana, subject to participating-installer availability — free, no obligation.

Get my FranklinWH quotes for Fontana