Which battery fits this customer?
Standard batteries match the customer's existing inverter brand. Specialty batteries (Tesla, Franklin) are premium options with bigger capacity and different VPP eligibility.
Customer's existing inverter brand
Battery configuration
Standard · Matches Inverter
SolarEdge
Home Battery
Capacity
10 kWh
Continuous
5 kW
10-year manufacturer warranty
Best for
SolarEdge inverter homes. Cheapest entry. 5 kW continuous limits backup loads to essentials.
Enphase
2× IQ Battery 5P
Capacity
10 kWh
Continuous
10 kW
15-year manufacturer warranty
Best for
Enphase microinverter homes. 10 kW continuous output supports more backup loads simultaneously than SolarEdge.
Not Compatible
Not compatible with SolarEdge inverters — the Enphase IQ 5P requires the Enphase IQ8 microinverter ecosystem for communications. Enphase has a universal-AC battery in development (inverter-agnostic) — not yet released.
Specialty · Premium Backup
Tesla
Powerwall 3
Capacity
13.5 kWh
Continuous
11.5 kW
10-year manufacturer warranty
Best for
Built-in inverter, no gateway. Highest continuous output. AC-couples onto an existing solar system regardless of inverter brand. Whole-home backup viable.
Franklin
aPower 2
Capacity
15 kWh
Continuous
10 kW
15-year manufacturer warranty
Best for
Customers wanting maximum capacity. Most days of backup. AC-coupled, works with any inverter brand.