The FG Wilson P850-1 is a 616 kW (770 kVA) standby generator set powered by a Perkins 2806A-E18TTAG5 engine. It is available at 415/240 V, 400/230 V, 380/220 V, 230/115 V, 220/127 V, 220/110 V, 200/115 V, 240 V, 230 V and 220 V, 50 Hz. It holds 109.5 L (28.9 gal) of coolant, with a maximum ambient rating of 50 °C. The set measures 5572×2150×1954 mm (219.4×84.6×76.9 in) and weighs about 2361 kg (5205 lb). An integrated tank holds 2085 L (550.8 gal).