Rack-mounted solar panels run about $2.50 to $4.00 per watt installed in NJ, while the roofing scope that supports the array — mount flashing, structural verification, and any re-roof before solar — is priced separately by a free written estimate, per EnergySage, SolarReviews, and WattBuild.
The PV system is the solar installer's number, and the roofing side is the separate scope Newark Quality Roofing prices for the roof underneath it.
What Does the PV Array Itself Cost?
The PV array runs about $2.50 to $4.00 per watt installed in New Jersey, the solar installer's scope rather than the roofer's, per EnergySage, SolarReviews, and WattBuild. That per-watt figure covers the modules, the inverter, the racking, and the electrical work the solar installer carries.
The per-watt price moves with system size, because a larger array spreads the fixed soft costs of permitting, design, and the inverter across more watts, so a bigger system reaches better per-watt pricing than a small one, per EnergySage and SolarReviews. The total still tracks the number of watts installed times that per-watt rate, not a flat package price.
The photovoltaic system sits with the solar installer, who sizes the array, selects the modules and inverter, and monitors production, while Newark Quality Roofing handles the roof the array mounts to. Pairing the array with a sound roof is the roofing decision a solar panel roofing installation settles before the panels go up.

What Drives the Roofing Cost?
The roofing cost is driven by roof age and condition, the mount type, the structural verification, and the code coordination, each priced by a free written estimate. A roof covering with less remaining service life than the array forces a re-roof before solar, which adds the covering cost, per NREL and the DOE.
Roof age and mount type set the largest share: a re-roof before solar adds the new covering, and the attachment differs between a pitched-roof flashed-foot mount fastened with a lag bolt into the rafter and a low-slope mount that is ballasted on a protection pad or mechanically attached and flashed, per the NRCA and SPRI. The flashing labor differs between those two methods, so the roof type and mount method drive the scope.
Structural verification and code coordination add the rest of the roofing scope, because uplift and required ballast follow ASCE 7 with corner and perimeter zones carrying more ballast than the field, and the array meets NEC 690.12 rapid shutdown, a UL 790 assembly fire rating, and IRC R324.6 firefighter access under an AHJ building and electrical permit. New Jersey ranges sit above national figures, so Newark Quality Roofing prices the roofing scope in a free written estimate rather than a flat number.
Do Federal and NJ Incentives Lower the Cost?
The federal §25D residential clean energy credit was 30 percent for systems completed through 2025 and is repealed for systems completed after December 31, 2025, per the IRS. No federal residential solar credit applies to a 2026 system, so a homeowner consults a tax professional for current incentives.
The New Jersey incentives remain in place: the Successor Solar Incentive program pays a fixed per-megawatt-hour SREC-II incentive over a 15-year term, administered by the NJ Board of Public Utilities, and net metering credits exported power at the full retail rate up to annual usage, per N.J.S.A. 48:3-87. These two programs offset owner cost over the life of the system rather than at install.
The NJ exemptions remove two further cost barriers: solar equipment is exempt from the 6.625 percent New Jersey sales tax through Form ST-4 and from added property-tax assessment through Form CRES, per the NJ Division of Taxation. A business-owned or third-party-owned commercial system instead follows the federal §48E Clean Electricity Investment Credit, and a tax professional confirms what applies.
A solar panel project carries two separate numbers in New Jersey — the PV array at about $2.50 to $4.00 per watt installed from the solar installer, and the roofing scope of mount flashing, structural verification, and any re-roof before solar that Newark Quality Roofing prices in a free written estimate — with the federal §25D residential credit repealed for 2026 systems and the NJ SuSI, net-metering, ST-4, and CRES programs remaining.
