Thomas from Holmdel, NJ has been a Green Sun Energy Services client since June of 2021. The machine is a Generac 7209 rated 24 kW on propane and 21 kW on natural gas, running on natural gas, on a 150-amp transfer switch, and it was commissioned in February of 2022. At about 3,900 square feet the house is at the size where 24 kW stops being generous and starts being the number the calculation lands on – two air handlers, or one and a well, and the margin is gone.
Project Facts
- Location
- Holmdel, NJ
- Service
- Standby Generator Installation
- Client since
- June 2021
- Manufacturer
- Generac Model # 7209
- Rated output
- 24 kW LP / 21 kW NG
- Fuel
- Natural Gas
- Home sized for
- 3,900 sq ft
- Electrical service
- 150 amp
- Transfer switch
- 150 amp
- Load management
- Managed Whole House
Standby generator questions from Holmdel homeowners
Why do outages last longer on some Holmdel streets than others?
Mature tree cover over overhead lines is the usual reason. Limbs coming down in wind, snow or ice take the lines with them, so heavily treed streets tend to see both more frequent outages and longer restoration times than open ones. It is one of the honest arguments for standby power rather than a portable generator.
How can a whole house be carried on a smaller electrical service?
Through load management. One or more large loads are controlled so they do not start at the same moment, or shut down briefly if generator demand climbs too high. That is what allows whole-house coverage where the raw sum of every connected load would otherwise exceed the machine.
Does a house with a generator still need surge protection?
Yes. A generator protects against the loss of utility power; it does nothing about a surge. Current electrical code includes surge protection for applicable dwelling services, so whole-house surge protection belongs in a properly designed generator installation rather than being treated as an extra.