Design solar PV strings and cables, size inverters and charge controllers, choose panel tilt, size EV charge-point cables, breakers and RCDs to IEC 60364-7-722, and estimate wind turbine output.
IEC 62548 & IEC 60364-7-712 string voltage window, inverter matching, and DC/AC cable sizing. Multi-string parallel arrays with combiner/feeder sizing are an advanced feature.
IEC 61851-1 / 60364-7-722 / 62955 charge point cable, breaker and RCD sizing. Multi-point site demand with load-management diversity is an advanced feature.
Off-grid PWM/MPPT charge controller current rating from array Isc or power/battery voltage, NEC 690.8(A) 125% factor.
Recommended fixed-mount PV tilt angle from site latitude — year-round, two-season, summer- or winter-biased.
Grid-tied DC:AC ratio (ILR) sizing/grading, or off-grid continuous + surge inverter capacity from a connected load.
Electrical power output from rotor diameter, wind speed, air density, power coefficient (Cp) and generator efficiency.
Why a PV string has to clear three genuinely independent inverter constraints at once, and why an EV charge point's earthing system can outright disqualify a design rather than just derate it.