Home battery · Franklin
Franklin Home Battery Cost
Whole-home battery with integrated backup management. Plan-level installed cost per kWh, model lineup, and where Franklin sits among home batteries. The calculator below sizes the estimate to your backup goal.
Quick answer: a Franklin home battery runs about $1,000-$1,500 per kWh installed. Competitive per-kWh; strong whole-home backup features.
Optional — auto-detects state
25D Residential Clean Energy Credit terminated by OBBBA for property placed in service after 2025-12-31.
Estimated installed cost · 13.5 kWh · California
$25,589
range $20,051 – $32,377 gross
Net after incentives (mid)
$23,564
Range $18,633 – $29,947
Payback
21.1 yr
TOU + resilience savings
Incentive stack
- Federal 25D (0%, ≥3 kWh)−$0
- CA SGIP (Equity Resiliency tier)−$2,025
- Self-Generation Incentive Program — General Market tier; higher tiers for low-income, fire-prone areas, medical baseline.
Federal 25D credit (30% standalone battery ≥3 kWh) was terminated by OBBBA for property placed in service after 2025-12-31. State programs vary; verify income tier and capacity caps with the program administrator.
Benefits estimate
- Annual TOU savings
- $1,064
- Resilience value
- $50/yr
- Useful cycles
- ~6,000 (LFP) / ~3,500 (NMC)
- Warranty (typical)
- 10 yr / 70% capacity
Resilience value is a conservative annualized figure; actual avoided-outage cost can be much higher during sustained outages or for medical-baseline households.
Quote check — what to ask
- · Usable capacity (not nameplate) and end-of-warranty capacity retention (typically 70-80%).
- · Round-trip efficiency (modern systems 89-92%).
- · Cycle warranty (10,000 cycles for LFP, 6,000-7,000 for NMC).
- · Backup loads and transfer time (whole-home transfer: ms to seconds; partial: instant via dedicated subpanel).
- · Whether the inverter is integrated (Powerwall 3, Franklin) or separate (Enphase requires separate IQ8 microinverters or System Controller).
- · Monitoring, software updates, and grid-services enrollment (Tesla VPP, Sunrun Connected Solutions, etc.).
- · Permit and interconnection lead time — typical 4–10 weeks in 2026.
Frequently asked questions
How much does a Franklin home battery cost installed?
A Franklin home battery typically runs $1,000 to $1,500 per kWh installed, per NREL benchmark data and 2026 installer quotes. Competitive per-kWh; strong whole-home backup features. The federal 25D credit that covered 30% of battery cost expired Dec 31 2025 under OBBBA, so 2026 installs pay the full price minus any state or utility incentive. Use the calculator below to size for your needs.
Which Franklin battery model should I look at?
Franklin's residential storage is: aPower 2. Whole-home battery with integrated backup management. Match the usable capacity (kWh) and continuous power output (kW) to your goal — whole-home backup needs more power than simple bill-shifting. Per NREL, most homes that want meaningful backup land at 10 to 20 kWh.
Is Franklin worth it vs. other battery brands?
Franklin is a mid-tier battery — competitive per-kWh pricing with broad installer support. The biggest cost variables are total capacity and whether you're pairing with new solar (cheaper per kWh) or retrofitting onto an existing system (more expensive). Brand differences in per-kWh price are smaller than the capacity decision itself.
What incentives apply to a Franklin battery in 2026?
The federal 25D residential clean energy credit (30% of battery cost) expired Dec 31 2025 under OBBBA and does not apply to 2026 installs. State and utility storage programs still apply — California SGIP, plus several state and utility resilience and demand-response programs. The calculator below surfaces what's available; verify with the program administrator.