Princeton, NJ Solar Panels
Solar Power in Princeton
If you live in Princeton, NJ, and your electricity bills keep climbing, you’re not alone. New Jersey residential rates average 19.38 cents per kWh—well above the national average of 16.6 cents. That’s why more Princeton homeowners are exploring solar.
New Jersey now ranks 5th in the nation for residential solar, and this guide breaks down how it works here. We’ll walk you through the basics of solar installation, including how home solar panels generate power and what to expect.
NEW JERSEY by the Numbers
How Much Do Solar Panels Cost in Princeton, NJ?
See what solar really costs in Princeton, NJ. Our calculator uses firsthand data from actual installations across Princeton and nearby areas like Lawrenceville, Hopewell, Pennington, and West Windsor. That means your estimate reflects real local pricing—not national averages. Enter a few details to get started.
System
- No upfront investment
- Palmetto handles all maintenance
- 90% Production Guarantee
- Comprehensive protection program included
Key Takeaways
- Princeton electricity rates average 19.4¢ per kWh—well above the national average—so going solar can help you gain more predictable energy costs for years.
- New Jersey offers strong solar incentives like full retail net metering, sales and property tax exemptions, and SREC programs, even without the federal tax credit.
- A typical Princeton home can save around $86,000 over 25 years, or go solar with no upfront cost through a LightReach lease.
Princeton Electricity Prices
If your Princeton electricity bills keep climbing, you’re not alone—and there may be a way to take back control.
Electricity costs in New Jersey have risen steadily over the past few years, staying well above the national average. For many Princeton homeowners, that trend adds up to higher monthly bills with no clear end in sight.
Solar offers a way to sidestep rising rates. By generating your own power with home solar panels, you can rely less on the grid and gain more predictability in what you pay each month.
Over time, that predictability becomes real value. While utility rates tend to increase, the sunshine that powers your panels stays free—helping protect your household budget for years to come.
Price of Energy: New Jersey vs National Average
Princeton Area Utility Providers
In Princeton, NJ, electricity costs vary by utility. In 2023, JCP&L customers paid about 14.0¢ per kWh, while PSE&G customers paid 18.8¢ per kWh. Both compare to the 2023 national average of 16.0¢.
In 2023, New Jersey’s state average was 17.70¢ per kWh, higher than the national average. JCP&L rates fell below the state average, while PSE&G rates sat above it, reflecting differences in each utility’s infrastructure, delivery costs, and service territory.
These rates can shift over time and often rise. Solar panel installation in Princeton helps you generate your own power, offering more predictable energy costs and less exposure to future utility rate increases from either provider.
Princeton Utilities Electricity Rates
New Jersey Solar Incentives
Princeton homeowners can tap several money-saving programs. Explore the solar incentives in New Jersey that help lower the cost of going solar.
These range from net metering and sales and property tax exemptions to community solar subscriptions, storage rebates, and SREC programs. Together, they can meaningfully reduce what Princeton homeowners pay for solar over time.
While the federal 30% tax credit has ended, New Jersey’s incentives remain. Leasing through LightReach also simplifies things, as Palmetto handles the commercial ITC and reflects savings in lower monthly payments.
| Incentive | Type | Description | Source |
|---|---|---|---|
| Net Metering | Net Metering | New Jersey mandates full 1:1 retail-rate net metering for all residential solar customers across all four investor-owned utilities, allowing homeowners to offset their electricity bills with excess solar generation. | Learn More |
| New Jersey Solar Sales Tax Exemption | Sales Tax Exemption | Solar energy systems and battery storage equipment are 100% exempt from New Jersey’s 6.625% state sales and use tax, saving homeowners $1,300–$2,200 at the point of purchase. | Learn More |
| New Jersey Solar Property Tax Exemption | Property Tax Exemption | Under N.J.S.A. 54:4-3.113a, the added home value from a solar installation is permanently excluded from New Jersey property tax assessments, saving homeowners $330–$1,000 or more per year. | Learn More |
| Community Solar Energy Program (CSEP) | Rebate | New Jersey’s Community Solar Energy Program allows renters, condo owners, and homeowners with shaded or unsuitable roofs to subscribe to a share of an off-site solar farm and receive a guaranteed discount of at least 20% on their electricity bill. | Learn More |
| Competitive Solar Incentive (CSI) Program | SREC | New Jersey’s Competitive Solar Incentive (CSI) Program awards SREC-II payments to large grid-supply solar, solar-plus-storage, and large non-residential net-metered projects through competitive solicitations designed to secure new solar capacity at the lowest possible incentive cost. | Learn More |
| Garden State Energy Storage Program (GSESP) – Phase 2 (Residential) | Rebate | New Jersey’s Garden State Energy Storage Program Phase 2 will provide residential homeowners with an upfront rebate and ongoing performance-based payments for installing behind-the-meter battery storage systems; Phase 2 is approved and expected to launch later in 2026. | Learn More |
New Jersey offers some of the strongest net metering protections in the country. When your solar panels produce more electricity than your home uses at any given moment, the excess is sent to the grid and your utility credits your account at the full retail rate — the same rate you pay for electricity. In 2026, that means credits of approximately $0.26/kWh (PSE&G), $0.24/kWh (JCP&L), or $0.23/kWh (Atlantic City Electric / RECO), depending on your utility. These credits roll over month to month throughout the year.
At your annual true-up, any remaining excess credits (generation above 100% of your annual usage) are paid out at the lower wholesale rate (approximately $0.03–$0.05/kWh). For most homeowners in Princeton who size their system to cover their annual usage, this rarely applies. Net metering is available to all residential solar customers on PSE&G, Jersey Central Power & Light (JCP&L), Atlantic City Electric, and Rockland Electric (RECO) systems up to 5 MW in capacity.
Net metering is mandated by state law and is separate from — and stackable with — the SREC-II production payments you earn through the SuSI program. Together, these two programs form the financial backbone of residential solar in New Jersey. Contact your specific utility for details on interconnection requirements and net metering enrollment in your service territory.
New Jersey exempts solar energy systems — including panels, inverters, racking, wiring, installation labor, and battery storage installed as part of a solar system — from the state’s 6.625% sales and use tax. On a typical residential solar installation costing $20,000–$33,000, this exemption saves homeowners in Princeton approximately $1,300–$2,200 upfront, with no action required on your part.
The exemption is automatic and applied at the point of sale by your solar installer. You do not need to file any paperwork, submit an application, or claim anything on your state tax return. Simply confirm with your installer before signing a contract that they are applying the sales tax exemption — a reputable NJ installer will do this as a matter of course.
This exemption applies statewide to all residential solar purchases and is one of the simplest and most immediate financial benefits available to NJ solar buyers. It is fully stackable with the SREC-II program, net metering credits, and the property tax exemption.
Installing solar panels typically increases a home’s market value by $15,000–$25,000. In most states, that increase would raise your annual property tax bill. In New Jersey, it does not. Under N.J.S.A. 54:4-3.113a (P.L. 2008, c.90), the added assessed value attributable to a solar energy system is permanently excluded from your property tax calculation for as long as the system remains on the property. There is no expiration date and no 10-year cap.
Given that New Jersey has the highest average property taxes in the nation (approximately $9,500/year), this exemption is especially valuable for Princeton homeowners. If solar adds $20,000 to your home’s assessed value, the exemption saves you an estimated $440–$690 per year depending on your county’s effective tax rate — that’s $6,600–$10,350 in savings over 15 years.
Unlike the sales tax exemption, the property tax exemption is not automatic. After your system is installed and operational, you must notify your local municipal tax assessor’s office and provide documentation including your final installation invoice, building permit, and inspection certificate. The assessor will then ensure the solar system’s added value is excluded from your property assessment going forward. Contact Princeton’s tax assessor office promptly after installation to secure this benefit.
The Community Solar Energy Program (CSEP), established under P.L. 2018, c.17 and made permanent in August 2023, allows New Jersey residents who cannot install rooftop solar — including renters, condo owners, and homeowners with shaded or structurally unsuitable roofs — to benefit from solar energy by subscribing to a share of a community solar facility. Subscribers receive bill credits from their utility based on the electricity their subscribed share produces, with a guaranteed minimum discount of at least 20% on their subscribed share. Low- and Moderate-Income (LMI) subscribers receive a minimum 25% discount.
The NJBPU approved a historic 3,000 MW expansion of the CSEP on March 5, 2026 — the largest community solar expansion in state history — with project registrations open through December 31, 2029. Community solar projects receive an incentive rate of $60/MWh (for registrations received on or after March 6, 2026). At least 51% of all CSEP capacity is reserved for LMI households, prioritizing access for lower-income New Jerseyans. The CSEP online registration portal opened to new project registrations on March 6, 2026.
CSEP is available to customers of all four NJ investor-owned utilities: PSE&G, JCP&L, Atlantic City Electric, and Rockland Electric (RECO). Typical subscriber savings range from 10–40% on the electricity portion of your utility bill. There is no equipment to install and no upfront cost to subscribe. Visit the official NJ Clean Energy Program portal to find available community solar projects in your utility territory.
The Competitive Solar Incentive (CSI) Program is New Jersey’s market-based complement to the residential SuSI/ADI program. Rather than a fixed administratively set rate, the CSI Program uses competitive solicitations (reverse auctions) to award Solar Renewable Energy Certificates (SREC-IIs) to eligible large-scale solar projects, ensuring the state secures new solar generation at the most cost-effective incentive levels. Eligible project types include grid-supply solar, solar-plus-storage systems, and large non-residential net-metered projects.
The program has completed three solicitation rounds to date, with the most recent awarding incentives to three projects totaling 24.1 MW of new solar generation. The fourth CSI solicitation launched in early 2026, with pre-qualification beginning March 11, 2026, and bids due by April 24, 2026. The fourth round introduced a new tranche specifically for projects of 20 MW and above, reflecting the program’s evolution toward utility-scale solar development.
The CSI Program is primarily relevant to commercial, industrial, and large-scale solar developers rather than individual residential homeowners. Residential homeowners with systems under 5 MW are served by the SuSI/ADI program instead. For the latest solicitation details, eligibility requirements, and bid documents, visit the official NJ Clean Energy Program website or the NJBPU portal.
The Garden State Energy Storage Program (GSESP), approved by the NJBPU on June 18, 2025, is New Jersey’s primary vehicle for meeting its goal of 2,000 MW of energy storage by 2030 under the Clean Energy Act of 2018. Phase 2 of the program — covering residential behind-the-meter battery storage for homeowners — is expected to launch later in 2026 and will be New Jersey’s first dedicated residential battery incentive program. (Phase 1, focused on large transmission-scale storage, awarded incentives for 355 MW of projects in March 2026.)
Phase 2 is anticipated to include two types of incentives: a Distributed Fixed Incentive (an upfront cash rebate to offset the purchase and installation cost of your home battery) and a Distributed Performance Incentive (ongoing annual payments from your utility based on how much power your battery contributes to the grid during peak demand events). Early proposed rules suggest upfront rebates in the range of $1,250–$1,625, though official Phase 2 program rules and final incentive amounts have not yet been published by the NJBPU as of mid-2026. Funding will be released in annual capacity blocks on a first-come, first-served basis by application date.
Important: Do not purchase a battery based solely on installer claims about rebate amounts. Verify all incentive figures against the official NJBPU order and program rules at the NJ Clean Energy Program website before making a decision. Adding a battery to a solar system does not affect your SREC-II eligibility — you continue to earn $85.00/MWh for 15 years on all solar generation regardless of whether a battery is paired with the system.
Ready to start saving with solar?
Speak with a Palmetto solar expert to find out exactly how much you can save with New Jersey incentives.
Get a Free QuotePrinceton Solar Irradiance
Solar panel production varies throughout the year based on daylight hours, weather patterns, and sun intensity. Understanding how seasons affect your solar system helps set realistic expectations for your investment.
Princeton experiences four distinct seasons, with sunny summers and shorter, cloudier winters. While New Jersey winters bring snow, Princeton’s ample sunshine makes solar a smart, productive choice year-round with the right system.
Solar Production in Princeton by Month
What Can Your Solar System Power?
Summer Production (July)
In July, your 10 kW system could power:
- 3.6 average homes (15 kWh/day per home)
- or Run central AC for 18 hours AND power all other appliances
- or Fully charge 5.4 Tesla Model 3 electric vehicles
Winter Production (December)
In December, your 10 kW system could power:
- 2 average homes (15 kWh/day per home)
- or Keep your home heating system running for 15 hours
- or Fully charge 3 Tesla Model 3 electric vehicles
Annual Production
Over a year, your 10 kW system could:
- Offset 10 tons of carbon dioxide emissions
- or Equal the environmental benefit of planting 175 trees
- or Save approximately $4,234 in electricity costs
Want to know exactly how much solar can power your home?
Get a personalized solar analysis based on your actual home, energy usage, and roof characteristics.
Get My Custom EstimateSolar Panel Systems in Princeton
We’ve mapped solar installations across the United States, right down to the neighborhood level. Explore this interactive heatmap of Princeton, NJ to see how many of your neighbors have already switched to solar. Just click any hexagon to view the installations nearby. Welcome to your community’s clean energy story.
Leasing Solar Panels
Not everyone wants to pay for solar upfront. In Princeton, you can go solar through a Power Purchase Agreement (PPA), available across all four New Jersey utilities—PSE&G, Jersey Central Power & Light, Atlantic City Electric, and Rockland Electric. With a PPA, you simply pay a set price for the power your panels produce, instead of paying a large sum to own the system.
A PPA works differently from a cash purchase. When you buy outright, you cover the full cost and handle repairs and upkeep yourself. With a LightReach PPA, Palmetto owns and maintains the system, so there’s no upfront cost and no maintenance to manage. Because solar produces more in summer, your PPA bill rises then and dips in winter.
Want to compare owning versus a PPA? Our guide on whether to buy or lease solar can help you decide what fits your Princeton home best.
Go solar without the investment
With LightReach, there are no investment costs to recoup, loan payments to manage, or maintenance needs to take on. As soon as your panels are active, your solar savings are too!
Explore LightReach LeasingFrequently Asked Questions
Yes. Princeton, NJ homes have access to full 1:1 retail-rate net metering, required by New Jersey state law across all major utilities, including PSE&G and Jersey Central Power & Light (JCP&L). When your panels produce more than you use, that extra energy is sent to the grid and credited at the retail rate.
These credits roll over month to month. At your annual true-up, any leftover credits are paid out at the lower wholesale rate, so most Princeton homeowners size their system to match yearly usage.
Yes. When you own your solar panels—by purchasing them with cash or a loan—they can raise your Princeton home’s value. A Zillow study found homes with solar sell for about 4.1% more, and New Jersey exempts that added value from property tax.
Leased or PPA systems work differently. Since Palmetto owns the equipment, a buyer would typically assume the agreement rather than gain added home value.
In Princeton, you can go solar with no upfront cost through a LightReach lease, paying a low fixed monthly amount that starts around $120/month for an average-sized home. Palmetto owns and maintains the system, so there’s no maintenance to manage.
If you prefer to buy, a typical system costs roughly $27,000 before savings. Note that following the 2025 federal law change, the 30% tax credit is no longer available for residential cash purchases. See the calculator above for pricing by home size.
With a LightReach solar lease, you make one simple monthly payment that covers everything—your panels, installation, monitoring, maintenance, and a 90% Production Guarantee—with no upfront cost. For a typical 9.02 kW system in Princeton, NJ, that’s about $120 per month.
Because Palmetto owns the system, it claims the commercial tax credit and passes those savings on through lower payments. Since the lease is usually less than your current electric bill, many Princeton homeowners start saving from day one.
Yes. Solar panels work well in Princeton’s climate. The area averages about 4.8 peak sun hours per day across four distinct seasons, and panels still produce power on cloudy or snowy days, just at lower levels.
Production naturally varies by season. Sunny summer months generate the most energy, while shorter, cloudier winter days produce less. Over a full year, Princeton’s ample sunshine makes solar a reliable, productive choice for local homes.
For many Princeton homeowners, solar can be worth it financially. With New Jersey rates averaging 19.4¢ per kWh—above the national average—generating your own power can offset rising utility bills and add up to significant savings over time.
You can also start saving right away without any upfront investment. With a LightReach lease, your monthly payment is typically less than your current electricity bill, so many Princeton households see savings from day one.
In Princeton, NJ, a typical 10 kW home solar system produces roughly 13,500 kWh per year, based on NREL PVWatts data and about 4.8 peak sun hours per day. A smaller 5 kW system generates around 6,750 kWh annually.
Output shifts with the seasons—higher in Princeton’s sunny summers and lower during shorter, cloudier winter days. Your actual production also depends on roof direction, tilt, and any shading from trees or nearby buildings.