Warren from Colts Neck, NJ has been a Green Sun Energy Services client since December of 2021. The generator was commissioned in August of 2022: a Generac Guardian rated 19.5 kW on natural gas, on a 100-amp service-entrance switch with surge protection. That pairing is worth noticing – a large machine on a small service – and the load calculation explains it: 14 kW across the 2,500 square foot house, with a well pump among the items. A well pump draws several times its running load in the instant it starts, and a house on a well has no water at all when the power stops, so the generator is sized for that surge rather than for the service it connects to. An annual maintenance plan covers the yearly visit.
Project Facts
- Location
- Colts Neck, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- December 2021
- Manufacturer
- Generac Model # 7042-2
- Rated output
- 22 kW LP / 19.5 kW NG
- Fuel
- Natural Gas
- Home sized for
- 2,500 sq ft
- Electrical service
- 100 amp
- Transfer switch
- 100 amp
- Load management
- Managed Whole House
Standby generator questions from Colts Neck homeowners
Why does cold weather matter when sizing a propane tank?
Because propane's ability to vaporise falls as the outdoor temperature drops and as the liquid level in the tank falls. A supply that looks adequate in mild weather can struggle to support a large generator through a long winter outage if storage and vaporisation capacity were not designed for it.
What does a standby generator sit on?
A stable, level support system allowed by the model's installation instructions. Depending on the machine and the site that can be an approved composite base, a prepared aggregate base, a concrete pad, or an engineered elevated platform.
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.