Solar Panel Payback Calculator for Pennsylvania
Pennsylvania (PA) offers moderate solar potential with an average of 3.8 peak sun hours per day. The average residential electricity rate is 17 cents per kWh, and solar installation costs average $3.05 per watt. Based on these figures, a typical 6 kW residential solar system in Pennsylvania has an estimated payback period of 11.3 years and generates $25,777 in total savings over 25 years.
Solar System Size Comparison for Pennsylvania
The table below compares four common residential solar system sizes for Pennsylvania homeowners. All calculations use the state average electricity rate of 17 cents per kWh, average installation cost of $3.05/W, and 3.8 peak sun hours. The federal 30% Investment Tax Credit is included in all scenarios.
| System Size | Gross Cost | Federal Credit | Net Cost | Annual Output | Annual Savings | Payback | 20-Year Savings | 25-Year Savings |
|---|---|---|---|---|---|---|---|---|
| 4 kW | $12,200 | $3,660 | $8,540 | 4,438 kWh | $754 | 11.3 years | $10,703 | $17,181 |
| 6 kW | $18,300 | $5,490 | $12,810 | 6,658 kWh | $1,132 | 11.3 years | $16,059 | $25,777 |
| 8 kW | $24,400 | $7,320 | $17,080 | 8,877 kWh | $1,509 | 11.3 years | $21,411 | $34,367 |
| 10 kW | $30,500 | $9,150 | $21,350 | 11,096 kWh | $1,886 | 11.3 years | $26,763 | $42,957 |
Solar Energy in Pennsylvania: What You Need to Know
Pennsylvania has a growing solar market with SREC availability. Above-average electricity rates and a strong renewable portfolio standard create decent solar economics despite moderate sun hours.
Electricity Rates in Pennsylvania
The average residential electricity rate in Pennsylvania is 17 cents per kWh, which is above the national average of approximately 16 cents per kWh. These moderate rates provide a reasonable foundation for solar savings. Combined with the federal tax credit and any state incentives, solar remains a strong investment for most Pennsylvania homeowners.
Peak Sun Hours and Solar Production
Pennsylvania averages 3.8 peak sun hours per day, which is moderate but still viable for residential solar. Many successful solar installations operate across the Northeast and Midwest with similar sun hours. Modern panels are increasingly efficient even in diffuse light conditions. A 6 kW system in Pennsylvania produces approximately 6,658 kWh per year, accounting for standard system efficiency losses and typical weather patterns.
Pennsylvania Solar Incentives and Programs
No state tax credit. SRECs available through PA AEPS compliance market. Net metering at retail rate. Sales tax exempt (solar equipment already exempt under PA tax code). Property tax exemption for solar.
Incentive Summary for Pennsylvania
- Federal Tax Credit: 30% ITC (available through 2032)
- State Tax Credit: None
- Net Metering: Available
- SRECs: Available — provides additional ongoing revenue
- Avg. Installation Cost: $3.05/watt (before incentives)
How Pennsylvania Compares to Similar States
Below is a comparison of Pennsylvania with five states that have similar solar conditions. All calculations are based on a 6 kW residential system using each state's average electricity rate and sun hours.
| State | Sun Hours | Rate (c/kWh) | Cost/Watt | Net Cost | Payback | 25-Yr Savings |
|---|---|---|---|---|---|---|
| Pennsylvania | 3.8 | 17c | $3.05 | $12,810 | 11.3 years | $25,777 |
| Connecticut | 3.8 | 27c | $3.20 | $13,440 | 7.5 years | $47,845 |
| Maine | 3.8 | 22c | $3.15 | $13,230 | 9.0 years | $36,706 |
| Massachusetts | 3.8 | 28c | $3.30 | $12,860 | 6.9 years | $50,695 |
| New Hampshire | 3.8 | 23c | $3.20 | $13,440 | 8.8 years | $38,766 |
| New York | 3.8 | 23c | $3.20 | $8,640 | 5.6 years | $43,566 |
Environmental Impact of Solar in Pennsylvania
Installing a 6 kW solar system in Pennsylvania offsets approximately 5,693 pounds of CO2 per year, which is equivalent to planting 47 trees annually. Over the 25-year lifespan of your solar system, that adds up to roughly 142,325 pounds of avoided carbon emissions. Choosing solar energy is one of the most impactful steps a homeowner can take to reduce their carbon footprint and contribute to cleaner air in Pennsylvania communities.
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