Quick answer
Batteries are often worth it when outage value is high or time-of-use arbitrage is strong; weak utility rates make payback harder.
Bill savings path
Model peak/off-peak rate spreads, export rules, and whether solar production aligns with your load profile.
Backup value path
List critical circuits and decide if partial-home backup meets your resilience goals.
Products to compare next
Tesla Powerwall 3
Tesla solar customers, Whole-home backup goals, High-power essential loads
MOQ 1 · 30d partner response
- Capacity
- 13.5 kWh class
- Output
- 11.5 kW class
- From
- $11,500
Compare installed quote vs payback assumptions
Request partner quote Manufacturer specs
Enphase IQ Battery 5P
Enphase solar homes, Staged battery expansion, Essential-load backup
MOQ 1 · 25d partner response
- Modularity
- 5 kWh units
- Architecture
- Microinverter ecosystem
- From
- $6,500
Model total kWh and backup circuits explicitly
Request partner quote Manufacturer specs
FranklinWH aPower 2
Whole-home backup planning, LiFePO4 preference, Solar retrofit storage
MOQ 1 · 28d partner response
- Capacity
- 15 kWh class
- Output
- 10 kW class
- From
- $10,500
Validate local installer support and warranty terms
Request partner quote Manufacturer specsDecision snapshot
| Path | Good fit | Watch out |
|---|---|---|
| Budget-first | Start with essential scope and staged upgrades. | Undersizing capacity or skipping load calculations. |
| Future-proof | Plan panel, wiring, and platform depth early. | Assuming every home needs maximum equipment. |
| Resilience | Prioritize backup circuits and realistic runtime. | Treating marketing peak specs as real-world runtime. |
FAQ
How long is solar battery payback?
Often 7-15+ years depending on rates, incentives, and how much value you assign to backup.
Can one battery back up the whole home?
Sometimes, but essential-load backup is more common and often more cost-effective.
Do I need solar to install a battery?
Not always, but system design, interconnection rules, and economics usually tie to solar in residential installs.
Related guides
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