New built water-works complex in Bisha on southwest of Saudi Arabia is for local residents the sole source of drinkable water during the whole year. Its continuous operation is supported by 4 gen-sets Caterpillar with CAT3412 engines of 725kW in parallel mode. For control of all the gen-sets were chosen control panels with InteliSys in MINT configuration with modem unit for monitoring and control supplied by ComAp. The instalation was realized by ComAp's subsidiary company 42TTC in Saudi Arabia.