A 22 kW Generac standby generator:
Al in Westfield, NJ had Green Sun Energy Services install a Generac 22 kW natural-gas standby generator in September of 2025. Fuel comes from natural gas. The transfer arrangement is a managed whole-house setup using a 100-amp automatic transfer switch. When PSEG power goes out, the switch detects the outage and signals the generator to start, then transfers the full load automatically. Because it is a whole-house configuration, Al does not have to decide which circuits stay live — everything comes back on. The generator itself is the Generac 7000 Series, Model 7043, rated at 22 kW on liquid propane and 19.5 kW on natural gas — here running on natural gas.
Alongside the installation, Al signed on for a service plan that covers scheduled annual maintenance visits. Green Sun will come out on a regular basis to inspect the unit, change the oil and filter, test the battery, check the transfer switch, and make sure everything is ready to perform when the grid goes down. That scheduled upkeep is what keeps a standby generator reliable rather than just installed.
Why Westfield homeowners choose Green Sun Energy Services
We keep your generator ready before the power goes out.
What makes Green Sun Energy Services different
- Standby generators: installed and serviced as a Generac Authorized Sales and Service Dealer, by factory-authorized Generac technicians. On this home: a standby generator serviced by Green Sun Energy Services.
- Local: locally owned and operated in New Jersey since 2010, NJHIC licensed (#13VH06229000), with 45 completed generator service projects across Union County and 936 generator service projects throughout New Jersey.
Our work in Westfield
Green Sun Energy Services has completed 4 generator service customers in Westfield. Westfield, a town in Union County, is served by PSE&G.
Thinking about generator service for your Westfield home? Tell us about your project here or call 732-410-7818.
Power it. Protect it. Maintain it.
Project Facts
- Location
- Westfield, NJ
- Service
- Standby Generator Service
- Client since
- September 2025
- Manufacturer & model
- Generac 7043
- Rated output
- 22 kW LP / 19.5 kW NG
- Fuel
- Natural Gas
- Transfer switch
- 100 amp
- Load management
- Managed Whole House
Standby generator questions from Westfield homeowners
How level does a generator have to be?
Within the leveling tolerance specified in its installation manual -- applicable air-cooled instructions have used roughly a half-inch overall. A poorly prepared base can settle after installation and bring on drainage, vibration or enclosure problems that were not there on the day it went in.
How often should a standby generator be serviced?
Maintenance follows the schedule for the exact model and its operating hours. For current air-cooled units that means an annual inspection plus scheduled work at hour-and-year intervals. Extended running during a long outage can bring the next service forward.
Can the existing natural-gas service in a Westfield 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.