Engineering-Grade
Battery Sizing.
Accurate solar battery calculations without marketing bias. Determine precise kWh requirements, verify inverter compatibility, and match real hardware.
Enter daily kWh
Your home's energy use
Choose backup days
+ winter buffer option
Get battery size
+ recommendations
Updated just now
Load Target
Battery Usable
Nameplate Needed
Powerwall 3
Tesla • 13.5 kWh usable
Why BatteryBlueprint?
Calculations based on physics and NREL data, not salesperson estimates.
Physics-Based Logic
We separate Power (kW) from Energy (kWh) to prevent under-sizing. Ensure capacity meets actual load duration requirements.
Resilience Buffers
Winter temperature coefficients, aging degradation, and Depth-of-Discharge (DoD) limits are built into every calculation.
Hardware Matching
Match calculated loads against empirically verified specifications for component systems (e.g., Powerwall 3, Enphase 5P, SLIC).