power generation equipment, namely control panels for engines and generators; control devices for engines and generators, namely, microprocessor engine controllers, microprocessor generator controllers, electronic engine speed sensors, AC voltage sensors, battery voltage sensors, and annunciators; communication control devices for engines and generators, namely, communication interface modules, remote communication control and monitoring software for engines and generators, and transfer switches for those devices, transfer switch control devices for controlling the transfer of the supply of power from one power source to another, transferring switch devices for transferring the supply of power from one power source to another, and changeover switch devices for transferring the supply of power from one power source to another, and switchgear for automatic standby, prime power and distributed generation applications for use in power generation system installations, battery chargers for use in charging batteries as used on engines and switchgear station service batteries, and load banks for use load testing and exercising engines and generators