How to Build a Basic Load Profile

When this applies

Use this guide when stakeholders argue about kWh/day but nobody has written down when loads actually run.

Browser-based preliminary check for Load Profile Calculator — fast estimates, not code or stamped design output.

1List major loads with power level and hours per day or per interval.
2Separate continuous, intermittent, and seasonal loads so you do not double count.
3Compute daily energy and peak demand for inverter and cable screening.
4Document uncertainty bands where habits or occupancy drive variance.
5Refine with metering data as soon as a logger is available.

Using nameplate appliance power without duty cycle.
Forgetting standby and parasitic loads that dominate off-grid nights.
Mixing monthly bills with instantaneous peak assumptions without reconciliation.

For screening yes; for storage ROI you often need seasonal or weekly patterns.

This guide covers steady profiles; inrush needs separate motor starting review.

Use this guide when stakeholders argue about kWh/day but nobody has written down when loads actually run.

Browser-based preliminary check for Load Profile Calculator — fast estimates, not code or stamped design output.

1List major loads with power level and hours per day or per interval.
2Separate continuous, intermittent, and seasonal loads so you do not double count.
3Compute daily energy and peak demand for inverter and cable screening.
4Document uncertainty bands where habits or occupancy drive variance.
5Refine with metering data as soon as a logger is available.

Using nameplate appliance power without duty cycle.
Forgetting standby and parasitic loads that dominate off-grid nights.
Mixing monthly bills with instantaneous peak assumptions without reconciliation.