Independent energy/ CALCULATOR
Solar energy balance over a low-sun period
Compare estimated solar production with critical-load demand over several days.
Use the DC nameplate power of the array available to this system.
Use a location- and season-specific scenario, not an annual average for a winter check.
Combined allowance for temperature, orientation, shading, wiring, conversion and availability.
Daily energy for only the loads that must remain supplied.
Choose a consecutive low-sun period relevant to the operating plan.
Estimated solar generation
15.55 kWh
Critical-load demand
15.00 kWh
Energy balance
0.55 kWh
Solar energy coverage
103.68 %
Interpretation:This simplified period balance has a surplus of 0.55 kWh. Check timing, power and battery limits separately.
Peak-sun hours and one net-yield factor represent the entire period. Timing, inverter power, battery limits, state of charge, curtailment, snow and hour-by-hour weather are excluded. A positive energy balance does not prove uninterrupted power.