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FranklinWH

Premium Brands · Electrical

FranklinWH Home Batteries — Reliable Whole‑Home Backup for Puget Sound Homes

FranklinWH's aPower 2 pairs a 15 kWh battery with the aGate energy controller — whole-home backup that also manages solar, grid, generator, and EV inputs.

FranklinWH builds whole‑home battery systems centered on the aPower battery and the aGate smart controller — engineered to back up your house silently and instantly when the grid goes down. For homeowners across Puget Sound and the Greater Seattle area who demand safety, reliability, and seamless integration with solar, Eco Electric, Plumbing, Heating & Air — Washington's Home Energy Expert — is your local, certified partner to design, install, and service FranklinWH systems.

aPower 2 home batteries aGate energy management Whole-home backup Generator integration
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At a glance

Who makes FranklinWH — and where it sits

Ownership & scale
FranklinWH Energy Storage Inc. — California-based energy-storage specialist headquartered in the San Francisco Bay Area; systems are UL-listed and installer-certified.
Headquarters
San Jose, CA
Premium — why
The longest home-battery warranty in the category — 15 years — with generator integration.

FranklinWH by the numbers — vs the category

Usable capacity per unit

15 kWh

▏Powerwall 3

Continuous power output

10 kW

▏Powerwall 3 · 185 LRA motor start — carries heat pumps and well pumps.

Warranty term

15 years

▏category standard

Figures verified against the manufacturer documents in the Sources section below, 2026-07-16. Category ticks are typical-market reference points, not every competitor.

Where FranklinWH fits in your home

Tap a system to explore

Electrical systems in a Puget Sound home Cross-section of a house showing the electrical systems: service meter and main panel with whole-home surge protection, EV charger in the garage, backup generator or battery outside, lighting and dimmers, outlets and switches, smart controls, and a whole-house fan in the attic. Highlighted zones show where FranklinWH products live. Garage Living space Attic Meter Utility Main panel Surge EV charging Backup Lighting Outlets & switches Smart controls Whole-house fan
FranklinWH territory The rest of the electrical system — Eco covers it all

Showing Main panel & breakers.

Main panel & breakers

The service heart FranklinWH territory

Utility power lands at the meter and main panel, then splits into every branch circuit. Panel capacity, breaker quality, and AFCI/GFCI protection set the safety ceiling for everything else in the house — Washington enforces the NEC's arc-fault rules here (WAC 296-46B).

Warranty, visualized

15-year limited warranty (or 60 MWh throughput)

aPower 2 — defects

15 yrs

Capacity retention ≥70% of 15 kWh

15 yrs

or 60 MWh aggregate throughput

0 yrs 15 yrs

The 15-year term is the longest standard home-battery warranty on the market (category standard is 10). Requires installation per the manual by a certified installer; capacity measured at rated conditions.

Read the manufacturer's warranty terms: FranklinWH Limited Warranty for End Users

Western Washington fit

Why FranklinWH makes sense here — specifically

A 15 kWh unit with generator input is a smart Puget Sound resilience play: silent daily storage plus a fuel path for the long November outage.

  • aGate accepts a generator input — battery covers the short outages silently, generator extends the rare long one.
  • LFP chemistry and fan-less convection cooling suit garages and utility rooms.
  • 15-year warranty spans two rate-plan eras — time-of-use arbitrage keeps paying.

What it costs, honestly

FranklinWH against Eco's published ranges

Quoted per system design like all storage — one aPower 2 backs most homes' essentials; stackable to 15 units for big homes. Expect Powerwall-class pricing with a longer warranty amortization.

Standby vs battery vs portable — compare the paths

Ranges are Eco's published Seattle / Puget Sound installed prices — your written quote is exact, upfront, and free.

By home type

Which Washington homes FranklinWH fits best

Great fit

1960s–80s rambler

Garage or utility-wall install; one unit typically backs heat, refrigeration, and networking through a storm.

Great fit

Large multi-system home

Stack units per aGate for genuinely whole-home backup, or add a generator input for endurance.

Good fit

Pre-1950 craftsman

Panel modernization first if the service is original — then the battery slots in cleanly.

It depends

Condo

Space and HOA constraints decide; the compact single-unit footprint helps.

Why Puget Sound homeowners choose FranklinWH and Eco

  • Pacific Northwest weather and grid interruptions mean more families need dependable backup power. FranklinWH’s systems are designed for instant switchover, quiet operation, and long service life.
  • Eco Electric, Plumbing, Heating & Air brings decades of regional experience: deep knowledge of Seattle‑area permitting, utility interconnection, and locally relevant system sizing. We are Washington's Home Energy Expert for FranklinWH installations.

What the FranklinWH aPower + aGate system delivers for your home

  • Whole‑home backup: The aPower battery combined with aGate can power critical loads — or the entire home — depending on system size. No more choosing which circuits to keep on during outages.
  • Instant, seamless transfer: aGate’s intelligent controller provides near‑instant islanding so your lights, refrigerator, medical devices, heat pumps, and communications stay on the moment the grid fails.
  • Silent operation: Especially important in dense neighborhoods across Seattle, Bellevue, Tacoma, and Everett — FranklinWH systems run quietly compared with gas generators.
  • Scalable and modular: Start with the capacity you need today and expand the aPower battery bank later if your household grows, you add EV charging, or you increase solar production.
  • Smart energy management: aGate optimizes battery use alongside solar generation and grid pricing to lower bills, reduce peak demand, and preserve backup reserve based on your priorities.
  • Safety and longevity: FranklinWH designs incorporate robust battery management and thermal controls for safe, long‑life performance tailored to the variable weather and temperature ranges common in Western Washington.
  • Solar-ready and grid-friendly: Integrates with rooftop solar systems and modern inverters to enable time‑of‑use optimization, maximize self‑consumption, and support resiliency when utilities implement controlled outages.

How FranklinWH solves problems Pacific Northwest homes face

  • Storm‑related outages and stormwater runoff events: Instant backup keeps sump pumps, HVAC, and critical circuits operational during extended outages.
  • Wildfire‑driven grid shutoffs and poor air quality days: Keep whole‑home filtration systems and HVAC running so families stay healthy indoors.
  • Aging grid infrastructure and rolling outages: Reduce dependence on the grid and maintain household continuity during peak demand or maintenance events.
  • Rising electricity costs and demand charges: Use aGate’s intelligence to shift energy usage, store low‑cost solar or off‑peak grid energy, and limit costly peak draws.

Why Eco Electric, Plumbing, Heating & Air is the right installer for FranklinWH in Washington

  • Washington's Home Energy Expert: We explicitly position ourselves as the local authority on home energy systems. Our team understands the unique needs of Puget Sound homes — from older Craftsman houses in Ballard to new construction in Redmond.
  • Authorized FranklinWH partner: Our technicians are trained on aPower and aGate, ensuring correct commissioning, firmware configuration, and warranty handling.
  • Licensed, insured, and code‑compliant: We manage local permitting, utility interconnection paperwork, and final inspections with Seattle, King County, Pierce County, and surrounding municipalities.
  • Complete system approach: Eco handles site assessment, load analysis, solar integration, EV charging coordination, and ongoing maintenance — a single trusted contractor for the full lifecycle.
  • Fast, local service and support: Unlike national chains, Eco maintains local inventory and provides rapid on‑site service, routine diagnostics, and warranty advocacy.
  • Financing and incentives guidance: We’ll explain federal incentives, utility programs, and local rebate opportunities and help structure financing or leasing options to fit your budget.

The Eco installation process: clear, local, and professional

  1. 1 Free site assessment and needs analysis — we measure actual loads, evaluate your roof/garage/electrical room, and model outage scenarios relevant to your neighborhood.
  2. 2 Custom system design — capacity, redundancy, and solar integration tailored for your home and lifestyle.
  3. 3 Permitting and interconnection — handled by Eco. We coordinate with Seattle City Light, PSE (Puget Sound Energy), or local utilities to streamline approval.
  4. 4 Expert installation and commissioning — professional electricians who follow FranklinWH best practices and local code.
  5. 5 Post‑install onboarding — we walk you through operation, monitoring, and emergency procedures so you know exactly how your system will perform.
  6. 6 Local maintenance and rapid response service — Eco stays local to keep your system healthy for years.

The Eco Triple Guarantee

When you choose Eco Electric, Plumbing, Heating & Air — Washington's Home Energy Expert — you receive our Ironclad Eco Triple Guarantee:

  • Transparent Pricing Guarantee — Clear, written estimates with no hidden fees. If the scope changes, we explain why before proceeding.
  • 100% Satisfaction Guarantee — We don’t consider the job done until you’re completely satisfied with performance, cleanliness, and documentation.
  • No Mess Guarantee — Our crews protect floors and landscaping, perform a full cleanup, and leave your property as tidy as we found it.

Common FranklinWH use cases in the Greater Seattle area

  • West Seattle family: Keeps HVAC, kitchen appliances, medical equipment, and internet running through windstorm outages.
  • Bellevue townhouse with solar: Stores midday solar to power evening EV charging while keeping a reserve for unexpected outages.
  • Tacoma rental property: Adds property value and tenant protection by limiting downtime and ensuring safety during outages.

Questions Eco helps Puget Sound homeowners answer

  • How large aPower bank do I need to power my home for 6, 12, or 24 hours?
  • How does aGate manage my solar, battery, and grid interaction to save money?
  • What permits and inspections are required in my city?
  • How will the system perform during extended cold, rainy, or smoky conditions?

Eco can model scenarios and provide a clear, local plan.

Ready for resilient, intelligent backup power?

Protect your home, family, and lifestyle with a FranklinWH whole‑home battery system installed by Eco Electric, Plumbing, Heating & Air — Washington's Home Energy Expert.

Call (206) 970-1031 today to schedule your free assessment.

Text Us for fast answers.

Or Book Online to choose a convenient appointment time.

Eco stands behind every FranklinWH installation with local service, the Eco Triple Guarantee, and an expert team that knows Puget Sound homes inside and out. Let’s design a resilient energy plan that fits your home and your peace of mind.

The honest part

Choose something else instead if…

No brand wins every home. We install and service the alternatives too — so the recommendation follows your house, not a quota.

Choose Tesla if you want maximum single-unit power output (11.5 kW vs 10 kW) or the deepest solar-ecosystem integration.

Choose Generac if your outages regularly run days and refueling beats capacity math — fuel wins endurance contests.

Questions? Talk to a real pro.

Licensed, insured, and bonded across the Puget Sound — upfront pricing before work begins.

Sources & references

Warranty terms and specifications verified against the manufacturer's own documents, 2026-07-16. Terms change — the linked documents are always the governing version.

No fine print

The Eco Triple Guarantee

Every electrical, plumbing, and HVAC job is backed by three promises in writing — so you can say yes with total confidence.

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