Compare Battery Storage Systems
Side-by-side comparison of the top home battery systems available from Arizona installers.
| Spec | Tesla Powerwall | Enphase IQ | Generac PWRcell | SunPower SunVault | Franklin WH | Sonnen | LG RESU |
|---|---|---|---|---|---|---|---|
| Capacity | 13.5 kWh | 5 kWh per unit | 9 - 18 kWh | 13 - 26 kWh | 13.6 kWh | 10 - 20 kWh | 9.6 - 16 kWh |
| Power Output | 5 kW / 7 kW peak | 3.84 kW per unit | 4.5 - 9 kW | 6.8 kW | 5 kW / 10 kW peak | 4.8 - 8 kW | 5 - 7 kW |
| Warranty | 10 years | 15 years | 10 years | 10 years | 12 years | 10 years / 10,000 cycles | 10 years |
| Price Range | $10,500 - $13,500 | $7,000 - $10,000 | $10,000 - $20,000 | $10,000 - $16,000 | $10,000 - $14,000 | $12,000 - $30,000 | $7,000 - $11,000 |
| Best For | Whole-home backup | Modular savings | Backup power | Solar self-consumption | Off-grid capable | Premium off-grid | Budget savings |
| Compatible Inverters | Tesla Inverter (integrated) | Enphase IQ Microinverters | Generac PWRcell Inverter | SunPower / Equinox | Most string & micro inverters | Integrated hybrid inverter | SolarEdge, SMA, others |
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Tesla Powerwall
Capacity 13.5 kWh
Power Output 5 kW / 7 kW peak
Warranty 10 years
Price Range $10,500 - $13,500
Best For Whole-home backup
Compatible Inverters Tesla Inverter (integrated)
Enphase IQ
Capacity 5 kWh per unit
Power Output 3.84 kW per unit
Warranty 15 years
Price Range $7,000 - $10,000
Best For Modular savings
Compatible Inverters Enphase IQ Microinverters
Generac PWRcell
Capacity 9 - 18 kWh
Power Output 4.5 - 9 kW
Warranty 10 years
Price Range $10,000 - $20,000
Best For Backup power
Compatible Inverters Generac PWRcell Inverter
SunPower SunVault
Capacity 13 - 26 kWh
Power Output 6.8 kW
Warranty 10 years
Price Range $10,000 - $16,000
Best For Solar self-consumption
Compatible Inverters SunPower / Equinox
Franklin WH
Capacity 13.6 kWh
Power Output 5 kW / 10 kW peak
Warranty 12 years
Price Range $10,000 - $14,000
Best For Off-grid capable
Compatible Inverters Most string & micro inverters
Sonnen
Capacity 10 - 20 kWh
Power Output 4.8 - 8 kW
Warranty 10 years / 10,000 cycles
Price Range $12,000 - $30,000
Best For Premium off-grid
Compatible Inverters Integrated hybrid inverter
LG RESU
Capacity 9.6 - 16 kWh
Power Output 5 - 7 kW
Warranty 10 years
Price Range $7,000 - $11,000
Best For Budget savings
Compatible Inverters SolarEdge, SMA, others
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