An 18 kW Generac standby generator:
In October 2026, Green Sun Energy Services installed a Generac 18 kW LP / 17 kW NG standby generator at Domenick’s home in Old Bridge, NJ. The home is served by a 100-amp electrical service, and the system was sized for 1,085 square feet of living space. Fuel is natural gas.
The transfer arrangement is a managed whole-house setup using a Generac Model G0099330 100-amp service-rated automatic transfer switch, which comes with a Generac surge protection device pre-installed. When JCP&L power goes out, the switch detects the outage and signals the generator to start, then transfers the load automatically — no manual steps required. The whole-house configuration means Domenick does not have to decide which circuits stay live during an outage. One Load Management Module is included to handle smart control of one 60-amp device, allowing the system to shed that load automatically if demand approaches the generator’s capacity.
The generator itself is the Generac Model 7259, a next-generation air-cooled unit with cellular, Wi-Fi, and Bluetooth connectivity built in. That connectivity lets Domenick check the generator’s status and receive alerts remotely. The unit sits on a 5,000 PSI precast concrete pad (54″ × 32″ × 3″, 190 lbs) and is started by a 12-volt battery. The installation included up to 20 feet of electrical work and 20 feet of plumbing.
Grounding for this installation required #8 AWG green-jacket copper wire run from the water main to the service entrance main. To comply with NJAC 5:23-3.16, Green Sun also installed one grounding rod and an intersystem bonding bridge.
The generator carries a 5-year limited warranty from Generac and a 5-year limited workmanship warranty from Green Sun Energy Services.
Why Old Bridge homeowners choose Green Sun Energy Services
Complete backup power, from sizing and installation to the service that keeps it ready.
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 Generac 7259 standby generator (18 kW LP / 17 kW NG) running on natural gas, on a 100-amp transfer switch (managed whole house) and serviced by Green Sun Energy Services.
- Warranty: backed by a 5-year generator workmanship warranty.
- Local: locally owned and operated in New Jersey since 2010, NJHIC licensed (#13VH06229000), with 36 completed standby generator projects across Middlesex County and 618 standby generator projects throughout New Jersey.
Our work in Old Bridge
Green Sun Energy Services has completed 1 standby generator installation and 4 generator service customers in Old Bridge. Old Bridge, a township on Raritan Bay in Middlesex County, is served by JCP&L.
Thinking about a standby generator for your Old Bridge home? Tell us about your project here or call 732-410-7818.
Power it. Protect it. Maintain it.
Project Facts
- Location
- Old Bridge, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- October 2026
- Manufacturer & model
- Generac 7259
- Rated output
- 18 kW LP / 17 kW NG
- Fuel
- Natural Gas
- Home sized for
- 1,085 sq ft
- Electrical service
- 100 amp
- Transfer switch
- 100 amp
- Load management
- Managed Whole House
- Workmanship warranty
- 5 years
Standby generator questions from Old Bridge homeowners
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.
Does a generator need a concrete pad?
Not universally. Approved alternative support systems are permitted for applicable models. Concrete or an engineered platform may still be required because of the site conditions, flood requirements, anchoring, municipal requirements or structural design -- but it is not automatic.
Does new gas piping have to be pressure tested in Old Bridge?
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.