Loading NuWatt Energy...
We use your location to provide localized solar offers and incentives.
We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
Loading NuWatt Energy...
NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free Quote
Panasonic vs REC vs QCells vs Canadian Solar vs Silfab vs LONGi -- compared specifically for New Jersey conditions. Temperature coefficient, shade tolerance, salt-air resistance, and which panels maximize your ADI income.
Quick Answer
Top solar panel brands for NJ homes in 2026: Panasonic EverVolt (22.2% efficiency, premium), REC Alpha Pure-R (22.3%, premium), QCells Q.PEAK DUO (20.6%, mid-tier), and Canadian Solar HiKu6 (21.0%, value). NJ's high electricity rates mean even value-tier panels deliver excellent ROI — the efficiency difference adds only $200-$400/year.
Generic solar panel comparisons rank panels by efficiency and price. That works for Arizona or Florida, where conditions are consistent. NJ is different:
| Brand | Tier | Wattage | Efficiency | Temp Coeff | Degradation | Warranty | Made In | Price |
|---|---|---|---|---|---|---|---|---|
| Panasonic EverVolt | Premium | 410-420W | 22.2% | -0.26%/°C | 0.25%/year | 25 years (all-in) | Assembled in USA (components from Japan/Malaysia) | $$$ |
| REC Alpha Pure-R | Premium | 430W | 22.6% | -0.24%/°C | 0.25%/year | 25 years (product + performance + labor) | Singapore | $$$ |
| QCells Q.PEAK DUO | Mid-Tier | 410-420W | 21.3% | -0.34%/°C | 0.40%/year | 25 years (product), 25 years (performance) | South Korea / USA (Dalton, GA factory) | $$ |
| Canadian Solar HiKu6 | Mid-Tier | 400-420W | 20.8% | -0.34%/°C | 0.40%/year | 25 years (product), 25 years (performance) | China / Southeast Asia | $$ |
| Silfab | Mid-Tier | 410-440W | 21.4% | -0.30%/°C | 0.35%/year | 30 years (product + performance) | USA / Canada (Burlington, WA + Toronto, ON) | $$ |
| LONGi Hi-MO 6 | Value | 420-430W | 20.4% | -0.35%/°C | 0.40%/year | 25 years (product + performance) | China | $ |
Key NJ metric: Temperature coefficient (highlighted in amber) is the most important NJ-specific differentiator. Lower absolute values mean less production loss in heat. The difference between -0.24%/°C and -0.35%/°C represents 2-4% more summer production with the better-performing panel.
EVPV410H / EVPV420H | 410-420W | 22.2% efficiency
NJ Note: Best temperature performance for NJ's hot summers. The -0.26%/°C coefficient means minimal production loss when rooftop temperatures hit 140°F+ in July/August.
REC430AA Pure-R | 430W | 22.6% efficiency
NJ Note: Top performer for NJ conditions. The -0.24%/°C temperature coefficient is the best available, and 430W per panel means fewer panels needed -- important for NJ homes with limited roof space.
Q.PEAK DUO ML-G11+ | 410-420W | 21.3% efficiency
NJ Note: Best value in the mid-tier for NJ. USA manufacturing avoids tariff concerns. The -0.34%/°C temperature coefficient is acceptable but produces 2-3% less than premium panels during NJ's hottest months.
CS6.1-xxxT / HiKu6 | 400-420W | 20.8% efficiency
NJ Note: Budget-friendly option for NJ homeowners prioritizing cost per watt. Performs well in NJ conditions but premium panels will produce 3-5% more in summer heat.
SIL-410-NL / SIL-440-BK | 410-440W | 21.4% efficiency
NJ Note: Excellent NJ choice. North American made (no tariff concerns), better temperature coefficient than peers, and 30-year warranty. The -0.30%/°C coefficient splits the difference between premium and budget panels.
LR5-54HTH-430M | 420-430W | 20.4% efficiency
NJ Note: Lowest price option but produces the least per panel in NJ heat. For homeowners with ample roof space and tight budgets, LONGi delivers acceptable production at the lowest upfront cost. Not recommended for space-constrained NJ roofs.
NJ's high electricity rates ($0.17-$0.22/kWh) and ADI income ($85.00/MWh for 15 years) make the premium panel calculation more favorable than in low-rate states. Here is the math:
Verdict: In NJ, premium panels return $1,200-$2,000 more than their extra cost over 25 years. They are worth the premium, especially for homeowners who plan to keep their systems long-term. However, if budget is the primary constraint, mid-tier panels like Silfab offer 80% of the performance advantage at 50% of the price premium.
Best overall: REC Alpha Pure-R -- highest efficiency, best temperature coefficient, excellent warranty
Best value: Silfab -- North American made, 30-year warranty, strong NJ performance, mid-tier price
Budget pick: QCells Q.PEAK DUO -- USA made, widely available, solid performance at competitive pricing
Shore homes: REC Alpha or Silfab with IEC 61701 salt mist certification
NJ has 130 miles of coastline. Homes in Monmouth, Ocean, Atlantic, and Cape May counties face salt spray that accelerates corrosion of solar panel frames, connectors, and mounting hardware. If your home is within 500 feet of the ocean (or within a mile on exposed barrier islands), panel selection must account for salt air.
Look for:
Among the brands in this comparison, REC and Silfab have the strongest salt-air credentials. LONGi and Canadian Solar panels work but benefit from additional protective coatings applied during installation.
Get a free solar assessment with panel recommendations matched to your specific roof orientation, shade conditions, and budget. We carry all major brands and will show you exactly why we recommend what we recommend.