A 24 kW Generac standby generator:
Evan in Middletown, NJ had Green Sun Energy Services install a Generac 24/21 kW natural gas standby generator in October of 2021. The home is served by a 400-amp electrical service, and the system was sized for 4,600 square feet of living space.
The transfer arrangement is a managed whole-house setup using a Generac 400-amp Automatic Smart Transfer Switch with Power Management (Service Disconnect). When JCP&L 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, Evan does not have to decide which circuits stay live — everything comes back on.
Five Generac Smart Management Modules are wired in to handle large devices automatically. If the generator’s demand approaches its limit while those loads are running, the modules shed them and restore them when capacity allows, without any manual intervention. The appliances enrolled in that load management include an electric dryer, a single electric oven, an EV charging station, and an electric range/oven combo; the fifth module covers an additional device on the system.
The generator itself is the Generac Guardian® Model 7209, rated at 24 kW on liquid propane and 21 kW on natural gas — here running on natural gas. Wi-Fi connectivity is built in, allowing remote monitoring and status checks through the Generac Mobile Link app. The unit sits on a DiversiTech prefabricated concrete GenPad (54″ x 31″ x 3″) and is started by a Group 26-R 12-volt battery. The installation included up to 20 feet of electrical work and up to 20 feet of plumbing.
Two protective bollards were installed alongside the generator to guard the unit from accidental vehicle contact. Evan also added a 10-year extended warranty, supplementing the standard 5-year limited warranty from Generac. Green Sun’s own 5-year limited workmanship warranty covers the installation.
Why Middletown 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 7209 standby generator (24 kW LP / 21 kW NG) running on natural gas, on a 400-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 449 completed standby generator projects across Monmouth County and 626 standby generator projects throughout New Jersey.
Our work in Middletown
Green Sun Energy Services has completed 73 standby generator installations and 121 generator service customers in Middletown. Middletown, a township on Raritan Bay and Sandy Hook Bay in Monmouth County, is served by JCP&L.
Thinking about a standby generator for your Middletown home? Tell us about your project here or call 732-410-7818.
Power it. Protect it. Maintain it.
Project Facts
- Location
- Middletown, NJ
- Services
- Standby Generator Installation, Standby Generator Service
- Client since
- October 2021
- Manufacturer & model
- Generac 7209
- Rated output
- 24 kW LP / 21 kW NG
- Fuel
- Natural Gas
- Home sized for
- 4,600 sq ft
- Electrical service
- 400 amp
- Transfer switch
- 400 amp
- Load management
- Managed Whole House
- Workmanship warranty
- 5 years
Standby generator questions from Middletown homeowners
Will a larger gas meter be needed?
Possibly. A generator can significantly increase a home's maximum gas demand. If the existing meter or service cannot hold the required pressure while supplying the generator and the other appliances together, the gas utility may require an upgrade.
Will a 24 kW generator run an entire Middletown house?
For many homes, yes, but that does not mean every load can run at the same moment. Houses with two central air conditioners, electric heat, EV charging, pool equipment or electric cooking may need load management or a larger machine. The answer comes from a load calculation rather than from the phrase whole house.
How much space does a generator need in front of it?
For applicable air-cooled installations, roughly three feet of unobstructed clearance at the front, for airflow and for servicing. Fences, shrubs and stored materials should not intrude into that space. Newer models should be checked against their own current manual.