Capacity planning
Turn an outage energy target into a rated battery size.
Enter the average active load, operating time, outage duration, reserve, and conversion efficiency. The result screens completed product records without pretending that energy capacity resolves voltage or startup.
Capacity target
Turn the energy plan into rated capacity
Average watts already needs to account for cycling. Use the outage load planner when several appliances have different schedules.
Minimum planning capacity
1,964 Wh
- Daily load energy
- 1,440 Wh
- Outage energy
- 1,440 Wh
- Matching completed records
- 3
Completed records that clear the energy screen
This screen does not certify voltage, connector, surge duration, wiring, or equipment approval. A product with no separate peak rating is not rejected automatically, but its startup evidence remains unresolved.
Rated capacity has to absorb loss and reserve
Daily load energy equals average active watts multiplied by operating hours. The wizard multiplies that energy by the number of days without recharge, adds the selected reserve, and divides by conversion efficiency. The result is a minimum rated battery target, not a promise of delivered AC energy.
Reserve protects the plan from longer outages, warmer conditions, battery aging, and ordinary input uncertainty. Conversion efficiency accounts for energy lost between the battery and the connected load. A cycling appliance needs an average active load that already reflects its duty cycle.
Capacity cannot solve an output mismatch
A large battery can still have the wrong voltage, connector, waveform, continuous output, or startup behavior. The product screen checks capacity and continuous output, while a separately published peak can screen starting demand. Missing peak evidence stays unresolved rather than receiving a false pass.
Use the outage load planner when several appliances run on different schedules. Use the solar recharge calculator when daily recovery can reduce the battery target. The 2,000Wh guide explains the tradeoffs once the load moves beyond the 1kWh class.