A selection of home backup packages. From Diesel to Petrol generators all complete with transfer switch.
In the event of a power cut you will need to manually change a switch and the generator.
Pull start and key start options are available. When the power comes back on, you will need to do the reverse.
Fully automated solutions. In the event of a powercut the generator will start
automatically and your supply will switch over. It will do the reverse when mains is available.