FranklinWH aPower 2 is built for homeowners who want high single-battery capacity, strong output and a flexible energy-management platform. Infinium uses FranklinWH in both solar-plus-storage projects and existing-solar retrofits where the AC-coupled architecture and aGate controls fit the home.
FranklinWH aPower 2 Installation in the Bay Area
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What Makes the FranklinWH System Different
A FranklinWH system is more than the battery cabinet. The aPower 2 stores the energy, while the aGate serves as the home energy-management center that coordinates the battery with the grid, solar and other supported energy sources and loads. A single aPower 2 provides 15 kWh of energy capacity and up to 10 kW of continuous output, giving designers substantial capacity and power from one unit.
When This Battery Is Often a Strong Fit
- Existing-solar retrofits where an AC-coupled battery is attractive.
- Homes that want 15 kWh of capacity from a single battery.
- Whole-home designs that may need stronger motor-start capability and flexible load management.
- Homeowners who may want to scale battery capacity over time.
- Projects that benefit from centralized energy management through the aGate.
Key Specifications Homeowners Should Understand
| Item | Current published specification / design note |
|---|---|
| Battery energy | 15 kWh per aPower 2. |
| Continuous output | Up to 10 kW continuous. |
| Short-duration peak | 15 kW for 10 seconds in current published specifications. |
| Architecture | AC-coupled battery managed through FranklinWH aGate. |
| Scale | FranklinWH publishes support for up to 15 aPower 2 units / 225 kWh per aGate in supported configurations. |
| Battery chemistry | Lithium iron phosphate (LFP). |
| Warranty | 15 years or 60 MWh throughput under current published terms, subject to full warranty conditions. |
What Does the FranklinWH aGate Do?
Think of the aGate as the energy-management hub for the FranklinWH system. It manages the flow of power between the battery, the home, the grid and supported generation sources. In a properly designed backup system, it also helps isolate the home from the utility during an outage so the backed-up system can operate safely.
The exact configuration matters. Generator integration, load control and other features should only be described on the final proposal when they are part of the approved system design.
FranklinWH for Existing Solar
Because aPower 2 is AC-coupled, it can be a strong retrofit candidate when a homeowner already has a functioning solar inverter or microinverter system. We still verify equipment compatibility, service-panel capacity, utility requirements and the homeowner’s backup goals before selecting the architecture.
Whole-Home Backup and Large Loads
FranklinWH publishes strong continuous and starting-power specifications, but the right number of batteries still depends on the home. We look at air conditioning, pumps, electric water heating, electric cooking, EV charging and the loads that may run at the same time during an outage.
Bay Area Project Proof
Installation by One Integrated Team
Battery projects can trigger electrical-panel work, conduit changes, solar coordination and load-management decisions. Infinium’s in-house solar, battery, roofing and electrical capabilities allow those decisions to be coordinated before installation instead of discovered trade by trade.
Frequently Asked Questions
Often, yes. Its AC-coupled architecture is one reason it is commonly evaluated for retrofits. Final compatibility depends on the existing equipment and utility/interconnection design.
It may be able to support many homes, but “whole-home” capability depends on simultaneous load demand and motor-start requirements. We size the system from the home’s actual loads.
The aGate is FranklinWH’s home energy-management and grid-isolation center. It coordinates the battery with the home, grid and supported generation sources.
The platform is designed to scale, but expansion should be planned within the aGate, electrical and installation limits for the specific project.
The right battery decision is a design decision. Infinium will review your home, existing solar, electrical system and backup priorities before recommending a configuration.
See What Our Customers Are Saying About Us!
"I worked with Infinium Solar to design and install a residential solar + battery system. The whole team - from sales, to design, to installation, to service & interconnection - is very professional and highly competent. I worked with Gwen, Amy, Kirby, and several others at the Company to get my project completed on time. Their pricing was very competitive (I checked with six local solar installers) and I would absolutely recommend any homeowner to give Infinium a call."
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©2026 Infinium Solar, Roofing, and Electric
License: #1031953
All Rights Reserved
Privacy Policy Web Design and Digital Marketing by RYNO Strategic Solutions. Cookie Preferences