How Many Solar Panels in New Jersey?
A typical New Jersey household using 10,500 kWh a year needs about 21 panels — a 8.2 kW system. That is 1 more than the national average.
Panels needed
21
33 of 51 states, fewest first
System size
8.2 kW
Roof space
378 sq ft
Peak sun hours
4.4 / day
Based on 400W panels and 10,500 kWh a year. Your own bill will differ — put your figure into the calculator.
What drives the number in New Jersey
At 4.4 peak sun hours a day, New Jersey sits close to the national average. Each kilowatt delivers about 1,285 kWh a year.
Roof space is usually the binding constraint rather than budget. The 378 square feet above is usable south-facing area — chimneys, vents, dormers and north-facing slopes do not count towards it.
How long would that system take to pay for itself in New Jersey? →