01
Generation formula
Annual AC generation = array kWp × broad regional kWh/kWp factor × orientation factor × shade factor. The formal MCS method uses site-specific inputs; this prototype is only a preliminary screen.
02
Indicative annual value
Self-used kWh × entered import rate, plus exported kWh × entered export rate. Taxes, tariff changes, standing charges, degradation, maintenance, replacement and financing are not modelled.
03
Review and limitations
Regional factors are broad editorial assumptions, not forecasts. Method and source links were reviewed on 30 July 2026.