FranklinWH aPower 2 Installation

Whole-home battery backup with native generator integration. Single cabinet, 15 kWh, indoor or outdoor install. Connecticut-licensed installer.

FranklinWH aPower 2 home battery
FranklinWH aPower 2

Whole-home backup in a single 15 kWh cabinet

aPower 2 delivers 10 kW continuous output and 15 kWh of LFP capacity in one weatherproof IP67 enclosure. Combined with the aGate controller, it handles most Connecticut homes (including central A/C) without needing a separate critical-loads sub-panel.

aGate's native generator integration is the differentiator: it can auto-start a connected standby generator when battery state-of-charge drops. Effectively unlimited multi-day outage runtime, with the generator only running when needed.

Why FranklinWH

Whole-home backup by default

15 kWh per cabinet + the aGate controller backs up most of a typical CT home - including central A/C - without a separate critical-loads sub-panel.

Native generator integration

aGate can auto-start a connected standby generator when battery state of charge drops. Effectively unlimited multi-day outage runtime with the generator only running when needed.

Pairs with any solar inverter

AC-coupled - retrofits cleanly to Enphase, SolarEdge, Sol-Ark, Generac, and most other modern inverters. No solar-side equipment swap needed.

Indoor or outdoor install

The aPower 2 cabinet is rated for both. More flexibility on where it sits - basements, garages, or weather-rated outdoor placement near the meter.

Typical Connecticut configurations

1 cabinet + aGate - 15 kWh

Essential loads with light A/C cycling. 8-18 hours autonomy depending on use.

$19,000-$26,000

2 cabinets + aGate - 30 kWh

Full whole-home backup including multi-zone HVAC. 18-36 hours autonomy with solar recharge.

$32,000-$44,000

1 cabinet + aGate + generator integration

Indefinite runtime via auto-started standby generator. The "set it and forget it" configuration for CT outage-prone areas.

$22,000-$30,000 (battery) + generator

Installed pricing in Connecticut, before incentives. The Connecticut Energy Storage Solutions (ESS) incentive can lower the upfront cost; the amount depends on battery size and current program terms.

FranklinWH FAQs

Common questions from Connecticut homeowners evaluating FranklinWH.

What makes FranklinWH different from Tesla Powerwall or Enphase?
FranklinWH is built for whole-home backup as the default. A single FranklinWH aPower 2 cabinet (15 kWh) plus the aGate controller can back up most of a typical CT home - including central A/C - without needing a critical-loads sub-panel. It also has native generator integration: when battery runs low during multi-day outages, the system can automatically start a connected standby generator.
How big is a FranklinWH battery and how many do I need?
The aPower 2 is 15 kWh per cabinet. Most CT homes use one or two: one for essential loads + light A/C cycling, two for full whole-home backup including multiple HVAC zones. The cabinet is rated for indoor or outdoor install, which gives more siting flexibility than some competitors.
What does a FranklinWH install cost in Connecticut?
A single aPower 2 plus aGate runs $19,000 to $26,000 installed. Two-battery whole-home backup typically lands at $32,000 to $44,000. The CT Energy Storage Solutions (ESS) incentive can lower the upfront cost, depending on battery size and current program terms.
Does FranklinWH work with my existing solar?
Yes - aPower 2 is AC-coupled and retrofits to almost any existing solar inverter (Enphase, SolarEdge, Sol-Ark, Generac, etc.). We assess compatibility at the site visit and confirm the integration plan in writing.
Does FranklinWH integrate with a standby generator?
Yes - this is one of FranklinWH's biggest differentiators. The aGate controller can be wired to a Generac, Kohler, or similar standby generator and will automatically start it when the battery reaches a configurable threshold. The result: theoretically unlimited backup runtime during multi-day outages, with the generator only running when needed.
How long does a FranklinWH install take?
On-site work is typically 1-2 days. Permitting, utility paperwork with Eversource or United Illuminating, and CT ESS enrollment add 4 to 8 weeks. We project-manage the full timeline.