Solar Battery Autonomy Planner

Run a transparent hourly load, solar, grid, and battery energy ledger locally.

Scenario arithmetic only: this does not size equipment or predict real performance, degradation, tariffs, warranty outcomes, or electrical safety. Validate designs, installation, protection, and operating limits with manufacturers and qualified professionals.

Hourly profile

CSV columns: hour,load_kwh,solar_kwh, or JSON array objects with load/solar. A 24-hour profile repeats for the entered days.

FormatMissing sample policyRepeat days

Battery and inverter

Nominal capacity (kWh)Usable capacity cap (kWh)Initial SOC (% nominal)

Minimum SOC (%)Maximum SOC (%)Self-discharge (%/hour)

Charge limit (kW ≈ kWh/h)Discharge limit (kW ≈ kWh/h)Charge efficiency (%)Discharge efficiency (%)

Inverter standby load (kWh/hour)

Grid and outage

Outage starts at simulation hourOutage ends before hourGrid-charge policy

Scenario name

Portable project

Import JSON

Scenario results

Run a scenario to begin.

Solar Battery Autonomy Planner

Hourly profile

Battery and inverter

Grid and outage

Portable project

Scenario results

SOC and unmet load

Hourly energy ledger

Scenario comparison

Exports