We are currently building a new 32m Yacht in Italy. The Yacht shall feature BUS system controlled by AMX products. Our past experience has shown that during the change over from one generator to another or from a generator to shore power, the instant abnsence of current creates problems to these electronic devices. of course the incorporation of UPSs would solve the problem but we would need more than 500 kg of UPSs and batteries. Could anybody suggest any other way to protect these devices?