Backup generators can provide savings on electricity bills by "peak shaving" the KW demand charge. Changing traditional transfer switches to switchgear with generator synchronizing controls, the same generator can provide both peak shaving in addition to emergency backup power.
Lowering the "peak" electrical use in the winter with minimal generator operation can reduce the electricity demand charge that is applied to the electricity bill every month.
Standby or emergency generators are typically operated periodically to test the generator and equipment opreation. These tests can be scheduled at times that also provide the benefit of peak shaving. The generator will synchronize and operate in parallel with the electrical utility supply, displace KW for a set amount of time, and then disconnect without interupting the normal supply of electricity.
The generator is also still available to start and operate to provide emergency power islanded from the normal supply when electricity is not available from the electrical utility.
The generator will connect and disconnect without any disruption to the electrical supply voltage.
Generators and synchronizing switchgear can also be made portable to relocate to other locations as an emergency generator with peak shaving ability.