Solar Panel Cost Guide in Williamstown, NJ (2025 Update)
- Williamstown Solar Installation Cost: $11,485
- 25-Year Savings: $13,749
- Payback Period: 12.6 Years
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Average Cost of Solar Panels in Williamstown
Find out what the average cost of a solar system is in Williamstown.
The average cost of a solar panel system in Williamstown is 4 per watt.The average solar panel system size in Williamstown is around 4.6 kilowatts, meaning a cost of about $11,485 for a solar installation, or $16,424 before the 0 federal solar tax credit is applied.
The actual price you pay can go higher or lower than the average in Williamstown depending on several factors, such as the model of solar panels you choose and the solar installer you hire.With average savings of about $19,000 on power bills over 20 years, many homeowners in Williamstown find installing solar panels can pay off big.
Click the button below to get connected to a highly rated solar installer in your area for a custom estimate.
Solar savings over time in Williamstown
| Year | Return on Investment |
|---|---|
| 1 years | $-9,987 |
| 3 years | $-6,990 |
| 5 years | $-3,994 |
| 7 years | $-998 |
| 9 years | $1,999 |
| 11 years | $4,995 |
| 13 years | $7,992 |
| 15 years | $10,988 |
| 17 years | $13,984 |
| 19 years | $16,981 |
| 21 years | $19,977 |
| 23 years | $22,973 |
| 25 years | $25,970 |
Top Solar Installers in Williamstown
Although you can install solar panels on your own, it takes extra labor and expertise. That's why almost all homeowners choose a solar panel installer. Solar installers provide key benefits that can help you maximize your investment, like warranties, monitoring and free repairs.
You can get a free quote from a local solar installer on the cost of solar panels for your home. Here are some nearby:
See all of the solar companies in Williamstown
Factors that Affect Solar Panel Costs in Williamstown
Cost is usually one of the most important factors for homeowners who are considering investing in solar. There are a few major factors that will push your cost above or below the average in Williamstown: solar equipment and system size, financing options and the solar installation company you choose. We’ll go over each of these briefly below.
Solar Equipment
When it comes to estimating the cost of a solar system in Williamstown, one of the most crucial factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are mainly based on your home’s energy usage, which you can determine by looking at past energy bills. Your total cost can increase by about $3,530 for each additional kilowatt you need.The brand and kind of equipment you want for your solar system can increase or decrease the price quite significantly. If you prefer a brand name like Tesla or SunPower, these often have a higher price tag than other brands. Efficiency also matters. Whether you’re opting for high efficiency because you have limited roof space or just want maximum energy production, you will be looking at a higher equipment cost, but this can typically lead to greater savings over time. Also, if you want additional equipment like an electric vehicle charger or solar batteries, this will also raise the cost.
Solar Financing Terms
Solar panels can save you money on energy bills over many years, but they can also be a big investment. That’s why many Williamstown homeowners choose to finance their solar panel systems to make going solar more affordable.However, the interest on solar loans also adds to your total costs, so it’s important to take that into consideration as well. You can always reduce the total you pay in interest and possibly even your APR by making a larger down payment.
Solar Panel Installation Company
The solar company you hire to handle your switch to sustainable energy can play a part in your total costs. There are about 3 solar panel companies in Williamstown, and each can charge varying amounts for labor and equipment.You may come across national solar installers that have lower prices due to their bigger brand name and access to bulk prices, or you might see small, local installation companies offering deals or promotions to compete with those major players.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.67 | $15,419 | $13,963 | 13.1 years |
| 8 kW | $3.60 | $20,163 | $19,013 | 12.9 years |
| 10 kW | $3.53 | $24,710 | $24,260 | 12.6 years |
| 12 kW | $3.46 | $29,059 | $29,705 | 12.4 years |
| 14 kW | $3.39 | $33,210 | $35,348 | 12.1 years |
| 16 kW | $3.32 | $37,164 | $41,188 | 11.9 years |
| 18 kW | $3.25 | $40,920 | $47,226 | 11.6 years |
| 20 kW | $3.18 | $44,478 | $53,462 | 11.4 years |
How to Save on Solar Panels
There are a lot of solar installers to choose from, all of which offer different warranties, solar panel brands and price points. To help you pick the right company for you, here are some tips to keep in mind:
- Contract: Before you sign a contract with a solar installer, make sure to look it over completely so you understand the terms. Also, ask questions if you’re not certain about some of the terms, such as what the warranty covers and what services you can expect from them.
- Reputation: Your solar installer should have a solid reputation as a company and have verifiable expertise in the field. Two ways to check this are to look for whether a company has technicians that hold a certification from the North American Board of Certified Energy Practitioners (NABCEP) and if it has positive reviews from previous customers.
- Installation Process: When going solar, it’s essential to keep an open line of communication with your solar panel company. Make sure you understand how the installation process works and the project completion timeline.
- Warranty: A comprehensive, 25-year warranty can help keep your solar panel system running smoothly and save you money on repairs and maintenance.
EcoWatch's Williamstown, NJ Solar Cost FAQs
How much does it cost to install solar panels in Williamstown?
This is a hard question to answer exactly, because the cost depends on a few different factors. Broadly speaking, it costs about $17,650 for a 5-kW system and $35,300 for a 10-kW system after the ITC is applied. It will be more expensive if you want additional solar equipment or higher quality panels, or if you have higher-than-average energy needs. On the flip side, you can spend less if you want a smaller solar panel system or less efficient solar panels.
What other factors should I consider apart from cost when buying solar panels?
The upfront cost is a crucial factor to consider, but whether it’s the most important for you depends on why you decided to go solar. In cities where rooftop space is limited, efficiency can be more important than the cost. Other factors that are important to take into account are the quality and durability of your solar panels.
Do solar panels increase the value of your home?
Solar panels can increase the value of your property by about 4%, according to research done by Zillow. The average home value in Williamstown is currently $324,255, so you could be looking at a value of about $13,294 more than houses without a solar system. The exact figures will vary, but most experts agree that installing solar panels in Williamstown is a rewarding investment.
How long do solar panels last in Williamstown?
On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but their efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher level of energy production.
Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.