Paul from Morganville, NJ has been a Green Sun Energy Services client since November of 2021. The generator was commissioned in March of 2022: a Generac Guardian rated 19.5 kW on natural gas, on a 200-amp managed whole-house switch with a smart management module and surge protection. The load calculation asked for 14 kW across the 1,680 square foot house – two refrigerators, a washer, a gas dryer and a dishwasher – so the machine carries a wide 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, which is worth more on a machine expected to last fifteen years than the money saved by sizing it tightly. Annual maintenance, a ten-year extended parts-and-labor warranty and monitoring we manage all sit behind it.
Project Facts
- Location
- Morganville, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- November 2021
- Manufacturer
- Generac Model # 7042-2
- Rated output
- 22 kW LP / 19.5 kW NG
- Fuel
- Natural Gas
- Home sized for
- 1,680 sq ft
- Electrical service
- 200 amp
- Transfer switch
- 200 amp
- Load management
- Managed Whole House
Standby generator questions from Morganville homeowners
How is a standby generator grounded?
The grounding and bonding arrangement depends on the transfer-switch configuration, and in particular on whether the neutral is switched and the generator therefore treated as a separately derived system. It is designed by a qualified electrical contractor rather than assumed from another installation.
What happens if the manufacturer and Morganville disagree?
The installation has to satisfy all applicable requirements. A manufacturer's listing cannot be ignored, and a manufacturer's minimum clearance does not cancel a municipal zoning requirement. Where requirements conflict or the interpretation is uncertain, the Authority Having Jurisdiction is consulted before the work goes in rather than after.
Can a standby generator run central air conditioning?
Yes, when it is sized for it. The design has to account for both the running demand and the starting surge of the air-conditioning equipment. Load-management equipment can be used where necessary so that demand does not all arrive at once.