Full explanation
Practical selection for a 500–3000 ha farm: ESP is ruled out — 25 h/yr is too little (winter 2024/25 brought 300–800 h of outages in Forest-Steppe and Polissia per Ukrenergo); LTP may fit if parallel solar/ESS is the base; **PRP is the default for Ukrainian farms**: 500 h/yr covers 2/3 of blackout seasons with a 10% overload margin for inrush currents. COP is only justified for dairy with 24/7 milking or an elevator with drying. Sizing: 1.25× peak inrush — a 22 kW mill means a 38 kVA PRP genset. Ukrainian market leaders: FG Wilson (Caterpillar group), Cummins, Pramac, Bartelli, Geko. Price of a 50 kVA PRP UAH 180 000–260 000 [VERIFY Q1-2026] in diesel-pack form without automation; +UAH 40 000 with ATS (Automatic Transfer Switch). Source: energy-kb.ts `genset_class` enum + ISO 8528-1:2018.