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Solar vs. Grid Electricity in New Jersey

Compare the 25-year cost of solar energy to staying on grid electricity, accounting for utility rate escalation, panel degradation, and IRA credits.

In New Jersey, the average homeowner pays $18.2¢/kWh for grid electricity. With historical escalation of 3-8% per year, this rate is projected to reach $48.5¢/kWh in 25 years (at 4% escalation). A 7 kW solar system locks in an effective rate of $0.162/kWh for the life of the system.

The math is straightforward: grid electricity costs more every year while solar LCOE stays fixed. By year 10, the utility rate reaches approximately $26.9¢/kWh, nearly 1.7x the solar LCOE. This growing gap is the engine that drives solar ROI.

25-Year Cost Comparison

MetricSolarGrid Only
Effective rate (year 1)$0.162/kWh$18.2¢/kWh
Effective rate (year 25)$0.162/kWh$48.5¢/kWh
25-year discounted cost$30,958$37,648
Net savings (NPV)$12,340

Solar in New Jersey produces 1,250 kWh per installed kW per year. A 7 kW system generates 8,750 kWh annually, offsetting 83% of the average household's 10,500 kWh annual consumption. After the 9-year payback period, every additional year of operation is pure savings.

Frequently Asked Questions

Is solar vs grid worth it in New Jersey?
With New Jersey's average utility rate of $18.2¢/kWh and solar irradiance of 1,250 kWh/kW/yr, the 25-year NPV for a 7 kW solar system is $12,340. Use Elovane to model your specific situation.
What incentives are available for solar vs grid in New Jersey?
The federal IRA provides a 30% ITC for solar and battery installations (through 2032) and up to $2,000 in 25C credits for heat pumps. Income-qualified households may receive additional point-of-sale rebates through the HOMES and HEAR programs.
How long does solar vs grid take to pay back in New Jersey?
Solar panels in New Jersey pay back in approximately 9 years. Battery payback depends on TOU rate spreads. Heat pump payback ranges from 5-12 years depending on current fuel costs and local electricity rates.

Other Comparisons for New Jersey

Solar + Battery›Heat Pump›Full Electrification›

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