Robert from Fords, NJ has been a Green Sun Energy Services client since September of 2021. A Generac model 7043-2 was commissioned in February of 2022, rated 19.5 kW on natural gas. The load calculation asked for 8 kW, which is what 1,177 square feet with gas cooking and gas hot water comes to – but the house also runs three mini-splits and two sump pumps, all electric and all wanted during an outage, and the machine was sized with room rather than to the minimum. Two load-management modules keep the largest of them from starting together.
Project Facts
- Location
- Fords, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- September 2021
- Manufacturer
- Generac Model # 7043-2
- Rated output
- 22 kW LP / 19.5 kW NG
- Fuel
- Natural Gas
- Electrical service
- 200 amp
- Transfer switch
- 200 amp
- Load management
- Managed Whole House
Standby generator questions from Fords homeowners
Can the existing natural-gas service in a Fords home supply a generator?
Often yes, but the gas system has to be evaluated first. The review covers the generator's BTU demand, meter capacity, available pressure, regulator capacity, pipe diameter and length, and every other gas appliance in the house -- furnace, boiler, water heater, range and fireplace among them.
Will a 22 kW generator run an entire Fords house?
For many homes, yes, but that does not mean every load can run at the same moment. Houses with two central air conditioners, electric heat, EV charging, pool equipment or electric cooking may need load management or a larger machine. The answer comes from a load calculation rather than from the phrase whole house.
Does a 200-amp service need a 200-amp transfer switch?
A transfer switch installed in the service path has to be rated appropriately for the service and the configuration. A 200-amp service commonly uses a 200-amp service-rated switch, but the actual design is confirmed by the electrician rather than assumed from the service size.