Jim Adams has been a Green Sun Energy Services client since September of 2025, when the roof and the solar array were bought on the same day. The roof was finished on 6 October 2025 and the array in late November.
2,900 square feet, stripped to the deck
A single layer of old shingles came off down to the sheathing and left with the dumpster. Deck protection went over the exposed sheathing, then a GAF Timberline system in Charcoal carrying a 50-year warranty, aluminum drip edge along 244 feet of rakes, eaves and valleys, and a ridge vent along the peak. Eleven days from signing to a finished roof.
21 panels and 9.03 kW
Twenty-one JinkoSolar JKM430N panels at 430 watts each came to 9.03 kW on Unirac mounting, finished on 21 November 2025, with an Enphase IQ8PLUS microinverter behind every panel rather than a shared central inverter. PSE&G is the utility and the first year was designed for about 11,661 kWh — close to 1,300 kWh for every kilowatt installed, which is a well-oriented roof.
Eleven days for a roof, seven weeks for an array
The gap between the two is not the crew being slow. A reroof needs a building permit and a crew. A solar installation needs a building permit, an electrical permit, a review of the mounting and the roof structure, and an interconnection application to the utility, which has to approve the system before it is allowed to push anything back onto the grid. None of that happens on the roof and all of it happens before anyone climbs a ladder. It is worth knowing when a household is deciding what order to do things in: the roof can be booked quickly, the array cannot, and starting the array paperwork early is what lets the two land close together.
Why the roof went first
An array is bolted to a roof for twenty-five years and more, so shingles at the end of their life underneath one become a second job with a date already on them — panels off, roof on, panels back. Buying both together meant the shingles were new before a single mount was fastened through them, and the array now sits on a roof with a 50-year system under it.
Why Hamilton homeowners choose Green Sun Energy Services
One company designs the roof and solar system together, so there is no finger-pointing between a roofer and a solar installer.
What makes Green Sun Energy Services different
- Roofing: installed as a GAF Certified Roofing Contractor (#CE28608), with a GAF Timberline Lifetime Roofing System like the one on this home. On this home: a new roof over 2,900 sq ft.
- 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 9.03 kW solar array of 21 Jinko JKM430N-54HL4R-B panels, an EnPhase IQ8PLUS-72-M-US Micro-Single inverter and the Unirac mounting system.
- Warranty: backed by a 50-year roof warranty, a 5-year roofing workmanship warranty and a 25-year solar workmanship warranty.
- Local: locally owned and operated in New Jersey since 2010, NJHIC licensed (#13VH06229000), with completed roofing projects and 25 completed solar projects across Mercer County and 92 roofing projects and 363 solar projects throughout New Jersey.
Our work in Hamilton
Green Sun Energy Services has completed 1 roof replacement and 5 featured solar projects in Hamilton. Hamilton, a township in Mercer County, is served by PSE&G.
Generate electricity on your roof and use it to help power your vehicle.
Thinking about a new roof, solar, or both for your Hamilton home? Tell us about your project here or call 732-410-7818.
Power it. Protect it. Maintain it.
Project Facts
- Location
- Hamilton, NJ
- Services
- Roofing Installation, Solar Panel Installation
- Client since
- September 2025
Solar
- Manufacturer & model
- Jinko JKM430N-54HL4R-B
- Panels
- 21
- System size
- 9.03 kW
- Inverter
- EnPhase IQ8PLUS-72-M-US Micro-Single
- Mounting system
- Unirac
- Estimated first-year production
- 11,661 kWh
- Share of the home's electricity
- 100%
- Electric utility
- PSE&G
- Workmanship warranty
- 25 years
Roof
- System
- GAF Timberline Lifetime Roofing System
- Area replaced
- 2,900 sq ft
- Warranty
- 50 years
- Workmanship warranty
- 5 years
Questions from Hamilton homeowners
SolarAre north-facing panels a bad idea?
They generally produce less annual energy in New Jersey than comparable south-facing panels, but they are not automatically unusable. Roof pitch, shading, the economics and the space available all matter, and a production model should show the expected output before north-facing modules go into a design.
SolarDoes a third-party electricity supplier prevent going solar?
Not necessarily. New Jersey's net-metering rules contemplate customers taking supply through Basic Generation Service or a third-party supplier, though billing arrangements can differ. The supplier contract is worth reading, particularly on exported energy and the annual true-up.
RoofingDo I need a permit to replace my roof in Hamilton, NJ?
Often yes, but the exact permit path depends on the municipality and scope of work. New Jersey's Uniform Construction Code governs permit requirements, and local construction offices administer them. A straightforward re-roof may be handled differently from structural deck repairs, framing changes, skylights, or other alterations, so the contractor should confirm the local requirements before work begins.
RoofingIs a roof replacement noisy?
Very. The old roof is being torn off and thousands of fasteners are being driven into the deck above your head. Anyone working from home may want to plan around it, pets can find it distressing, and fragile items on attic shelves or hanging on walls immediately below the roof are worth securing beforehand.
RoofingDoes a roof need replacing simply because it is twenty years old?
No. Two roofs laid in the same year age very differently depending on ventilation, sun exposure, tree cover, workmanship, storm exposure, pitch and how much moisture the attic has been carrying. An inspection tells you far more than a birthday does.