Solar calculator
Solar estimate calculator
Estimate how many units (kWh) a solar system could generate each day. It is a rough guide, not a quotation.
Rough estimateDaily generation = kWp × peak sun hours × performance ratio. Monthly avoided energy cost = daily generation × 30 × on-site share × assumed tariff. Export credits, fixed charges, finance, degradation, maintenance and taxes are excluded. This is not a bill or subsidy calculation.
Official and manufacturer links
Links checked on 7 October 2026. These websites, and scheme rules, can change.