TowCheckNumbers before miles

FREE TOWCHECK WORKSHEET

RV Electrical Load Planner

List label watts and daily run time, then separate energy use from the loads that may run at the same time.

Enter documented appliance demand. Leave unused rows at zero.
Appliance or circuitWattsHours/dayQuantityMay run together
Daily energy0 Wh/day
Daily energy in kWh0 kWh/day
24-hour average0 W
Selected simultaneous load0 W
Running + entered surge0 W
Cutaway illustration of solar panels, controller and RV battery bank
FIELD NOTEPlan the systems that travel with you

Battery energy, solar harvest and appliance demand are easier to compare when the whole system is visible.

NEXT IN THE RV ELECTRICAL PATH

Carry daily energy into battery runtime

Use the worksheet's Wh/day or a specific steady load; keep battery chemistry, usable capacity and current limits explicit.

Continue this worksheetView the complete RV electrical path
LAST UPDATEDJuly 22, 2026
REVIEW STATUSSource-reviewed by TowCheck
SOURCES CHECKEDJuly 22, 2026

Methodology: The worksheet totals user-entered label values and operating time; it does not infer appliance demand or electrical installation requirements. Read calculation methodology or report a correction.

HOW TO USE THIS TOOL

Electrical Load Planner: what the result means

Use this before sizing a battery bank, solar array, inverter or generator from appliance labels and a realistic operating schedule.

Steps

  1. Copy watts from each appliance label or calculate watts from documented volts and amps.
  2. Enter realistic daily run time and quantity for each load.
  3. Mark only the loads that may run together and add the largest documented additional startup surge.
  4. Carry daily watt-hours to the battery and solar planners; carry simultaneous and peak watts to inverter guidance.

Formula

Daily energy = sum of appliance watts × hours per day × quantity; planning peak = selected simultaneous running watts + largest additional startup surge.

Important limits

  • Nameplate input, measured consumption, duty cycle and startup demand are different quantities.
  • This worksheet does not size conductors, over-current protection, disconnects, transfer equipment or ventilation.
  • Follow the RV, appliance, battery, charger and inverter manufacturers and obtain qualified electrical help where required.

Primary references

TowCheck uses these references for terminology and planning context. Your exact vehicle, trailer, tire and equipment documentation always controls.

review the full calculation methodology or report a correction.