A 2,500 square foot home in New Jersey typically uses about 1,152 kWh per month at the state average rate of 17.6¢/kWh (EIA). With 4.4 peak sun hours per day, most homeowners need a 10.5 kW solar system — roughly 27 panels at 400W. After the 30% federal ITC, net cost is about $22,000, with 10.4-year payback and $66,700+ in estimated 25-year savings.
Content roles: This page is your New Jersey-specific sizing decision for 2,500 sq ft. For national methodology and roof/orientation depth, see the 2,500 sq ft national guide. For bill-based sizing, see $200/month (~$203/mo equivalent in New Jersey). Policy depth: New Jersey solar data.
⚡ System Size
How Many Solar Panels for a 2,500 sq ft House in New Jersey?
New Jersey electricity rates and sun hours change panel count versus the US average:
System size (kW) = Annual kWh ÷ (Peak sun hours × 365 × 0.82)
For 2,500 sq ft in New Jersey:
Estimated monthly usage: ~1,152 kWh
Peak sun hours: 4.4 h/day
System size:10.5 kW (~27 × 400W panels)
Metric
New Jersey
US average
Rate
17.6¢/kWh
16.3¢/kWh
Sun hours
4.4 h/day
4.5 h/day
System size
10.5 kW
10.3 kW
Panels (400W)
27
26
New Jersey requires a similar system than the national average for the same square footage. Use our solar system size calculator with your actual utility bills for a precise ZIP-level result.
Find your exact solar savings
Enter your ZIP code for a personalized estimate using your state's electricity rate and sun hours.
💰 System Cost
What Does Solar Cost for a 2,500 sq ft Home in New Jersey After the ITC?
At $3.00/W installed (SEIA 2026), a 10.5 kW system in New Jersey costs about $31,500 before incentives. The 30% ITC saves ~$9,450, for $22,000 net cost.
📈 Payback Period
How Long Is Solar Payback on a 2,500 sq ft Home in New Jersey?
A 10.5 kW system saving ~$2,116/year pays back in about 10.4 years after the ITC. At 3% rate escalation, 25-year utility spend totals ~$88,700 vs $22,000 net solar — $66,700+ lifetime advantage.
Solar vs utility company · 25-year comparison
Total cost of staying on the grid vs owning solar for a $300/month bill (national average assumptions).
New Jersey Solar Incentives for a 2,500 sq ft Home
New Jersey’s Solar Transition (SuSI) program replaced the SREC program and offers Transition Renewable Energy Certificates (TRECs) for solar production. New Jersey is one of the most active SREC markets in the country. The state also offers a sales tax exemption on solar equipment and net metering at the full retail rate.
At New Jersey's average rate of 17.6¢/kWh and 4.4 peak sun hours, a 2,500 sq ft home (~1,152 kWh/month) typically needs a 10.5 kW system — about 27 panels at 400W. See the [national 2,500 sq ft guide](/guides/how-many-solar-panels-2500-sq-ft-house/) for methodology.
A 10.5 kW system in New Jersey costs roughly $31,500 installed before incentives. The 30% federal ITC reduces net cost to about $22,000. New Jersey's Solar Transition (SuSI) program replaced the SREC program and offers Transition Renewable Energy Certificates (TRECs) for solar production. New Jersey is one of the most active SREC markets in the country...
At $22,000 net cost and ~$2,116/year in bill savings, simple payback in New Jersey is about 10.4 years.
Most New Jersey homeowners in this size range see **$66,700+** estimated 25-year savings vs utility power. Equivalent monthly bill: **~$203** — compare the [$200/month bill guide](/guides/solar-panels-200-month-bill/) for bill-based sizing.
The US average needs a 10.3 kW system at 11.0-year payback. New Jersey needs 10.5 kW with 10.4-year payback at 17.6¢/kWh and 4.4 sun hours.
$200/month electric bill by state
System size and payback vary by electricity rate and sun hours — see your state.