Samantha from West Windsor, NJ has been a Green Sun Energy Services client since August of 2019. The generator was commissioned that November: a Generac Guardian rated 19.5 kW on natural gas, on a 200-amp whole-house transfer switch. The load calculation asked for 15 kW across the 3,300 square foot house, so the machine carries a comfortable margin over the requirement – a generator asked for well under what it can produce runs cooler and wears its parts more slowly than one working at the edge of its rating. A refrigerator, a separate freezer, a washer, a gas dryer and a dishwasher make up the load. Seven years on, annual maintenance, an extended parts-and-labor warranty and monitoring we manage all still sit behind it.
Project Facts
- Location
- West Windsor, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- August 2019
- Manufacturer
- Generac Model # 70432
- 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 West Windsor homeowners
Does new gas piping have to be pressure tested in West Windsor?
Yes. Gas piping subject to the adopted fuel-gas code must be inspected and tested before it is accepted. New Jersey adopts the 2024 International Fuel Gas Code, which governs the inspection, the test pressure and how long the test has to hold.
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.
What is a service-entrance-rated transfer switch?
One that is listed for use as service equipment when installed in the appropriate configuration. These are commonly used for whole-house systems, where the transfer switch becomes part of the home's service arrangement rather than sitting downstream of it.