29-panel 12.47 kW solar array in Union, NJ by Green Sun Energy Services.
Gregory Chung has been a Green Sun Energy Services client since July of 2018, when he took out a PowerBase Silver service plan on a Generac 6250 standby generator that another company had installed. Solar followed in September of 2025.
A plan on a generator we did not install
The 20 kW Generac 6250 was already on the pad when the relationship started. Green Sun did not sell it and did not install it. The plan covers the maintenance, and the machine has run under that plan through its most recent service visit in September 2025. PowerBase Silver is the routine work a standby generator needs in order to be trustworthy: oil, filters, plugs, a load test and a look at the transfer switch, on a schedule rather than after something goes wrong. A generator that has been serviced on a schedule is the one that starts on the night it is asked to.
29 panels and 12.47 kW
The array was signed in August 2025 and went on the roof on 11 September. Twenty-nine JinkoSolar JKM430N panels at 430 watts each come to 12.47 kW, on IronRidge mounting, with an Enphase IQ8PLUS microinverter behind every panel rather than one central inverter for the whole roof. That matters on any roof with shading: a panel in shade, or a panel with a fault, affects only itself. PSE&G is the utility, and the first year is estimated at 15,320 kWh.
Two purchases, one relationship
The generator and the array have nothing in common as equipment. One is a machine another company installed; the other is a system Green Sun designed and built. What links them is the service record between 2018 and 2025 — a plan renewed, visits made, a generator kept in condition. By the time this household decided to add solar, they already knew who they were going to call.
★★★★★ Customer provided a 5-star rating without comments.
Green Sun Energy Services replied
Thank you, Gregory! We're so glad to have you as part of the Green Sun Energy Services family since July 2025. It was a pleasure installing your 12.47 kW solar system with 29 Jinko 430W panels and EnPhase IQ8PLUS microinverters. Knowing that you're now covering 100% of your electricity needs—and saving over $145,000 over 25 years—is exactly why we do what we do.
We're also excited that you chose to protect your home further by enrolling in our Generac Service Contract. With scheduled maintenance and a warranty, your backup power is in great hands.
We appreciate your trust in us and look forward to supporting your energy independence for many years to come!
Why Union homeowners choose Green Sun Energy Services
More than solar panels: a professionally managed energy system, from design and permitting through installation, inspection, activation and ongoing support.
We keep your generator ready before the power goes out.
What makes Green Sun Energy Services different
- Solar: design and installation supervised by a NABCEP-certified professional (#PVA-111016-016148), with Enphase microinverters on every panel so each one reports its own output. On this home: a 12.47 kW solar array of 29 Jinko JKM430N-54HL4R-B panels, an EnPhase IQ8PLUS-72-M-US Micro-Single inverter and the IronRidge mounting system.
- 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.
- Warranty: backed by a 10-year solar workmanship warranty.
- Local: locally owned and operated in New Jersey since 2010, NJHIC licensed (#13VH06229000), with 20 completed solar projects and 45 completed generator service projects across Union County and 361 solar projects and 937 generator service projects throughout New Jersey.
Our work in Union
Green Sun Energy Services has completed 1 featured solar project and 2 generator service customers in Union. Union, a township in Union County, is served by PSE&G.
Generate electricity on your roof and use it to help power your vehicle.
Thinking about solar, generator service, or both for your Union home? Tell us about your project here or call 732-410-7818.
Power it. Protect it. Maintain it.
Project Facts
- Location
- Union, NJ
- Services
- Solar Panel Installation, Standby Generator Service
- Client since
- July 2018
Solar
- Manufacturer & model
- Jinko JKM430N-54HL4R-B
- Panels
- 29
- System size
- 12.47 kW
- Inverter
- EnPhase IQ8PLUS-72-M-US Micro-Single
- Mounting system
- IronRidge
- Estimated first-year production
- 15,320 kWh
- Share of the home's electricity
- 100%
- Electric utility
- PSE&G
- Workmanship warranty
- 10 years
Standby generator
- Manufacturer & model
- Generac 6250
- Rated output
- 20 kW LP / 18 kW NG
- Transfer switch
- 90 amp
- Load management
- Managed Whole House
Questions from Union homeowners
Standby generatorDo underground utilities have to be marked before the trench is dug?
Yes. Underground facilities must be addressed through the New Jersey One Call process before the excavation begins, which is what protects buried gas, electric, telecommunications and water lines from being struck.
Standby generatorDoes every generator need a valve adjustment?
No. Valve-clearance requirements depend on the engine and the model. The technician identifies the model and serial number and follows the applicable maintenance schedule, rather than assuming every air-cooled machine gets the same procedure.
Standby generatorWill a 20 kW generator run an entire Union 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.
SolarIs there still an electric bill with solar?
Yes. The utility continues to provide the meter, the grid connection and the billing account, so even a house producing roughly as much as it consumes over a year can still see customer charges and other applicable charges.
SolarWhat is a microinverter and why use one per panel?
A microinverter is a small inverter installed at or near an individual module, so each panel converts on its own channel. That gives module-level visibility and limits the effect one underperforming panel has on the others around it.