Is 7kW Enough Solar for a House on Long Island?
Yes, 7kW is enough for a solar panel installation on Long Island if you have a small or average-sized home with moderate energy demands. However, if you have high energy demands, you might need to consider a larger system to maximize your savings.
Learn how solar system size affects savings and start your consultation with Power Solutions today.
Putting it Into Context – How Big is a 7kW Residential Solar System?
A 7kW system is generally considered a moderate-sized array for Long Island and would consist of 18 to 22 solar panels (rated between 350 and 400 watts).
A system like this would generate up to 10,500 kWh of electricity each year in most areas of Long Island, whether you’re in Suffolk or Nassau County. 7kW is ideal if your home uses an average of 700 to 900 kWh per month.
The system wouldn’t take you off the grid, but it would dramatically reduce your electricity bills to generate significant savings.
How Big is the Average Home Panel Installation in New York?
Most homes on Long Island have a solar panel system rated between 7kW and 9kW. There are homes with smaller arrays, but most families choose larger systems to maximize savings and offset their PSEG bills.
A larger system is necessary if you have high energy demands. This would be the case if you:
- Have an electric vehicle that you frequently charge at home.
- Use an electric heat pump for winter heating.
- Have a jacuzzi/hot tub or heated pool.
- Work out of a home office with printers, computers, and other devices.
A Long Island solar installation is fully customizable. The only limitations are sunlight availability, roof area, and your budget. There’s plenty of flexibility to design a solar panel array that suits your unique needs.
How Much Energy Demand is Too Much for a 7kW Solar Power System?
A 7kW system will be too small if your average monthly consumption is more than 1,200 kWh. While a smaller system would still generate some savings, it’s better to choose something larger that could provide more savings.
Is it Worth Switching to Solar in 2025?
Yes, it’s worth switching to home solar to reduce your electricity bill. Solar panels last for at least 25 years and can produce some electricity for 30 years or more. Once your system pays for itself (usually within the first 10 years), the remaining savings are a return on your investment.
There is a 25% (maximum of $5,000) New York State Tax Credit for Solar Panels, which reduces the real cost of switching to solar, making renewable energy an even better deal for most families.
How Will My Solar Installer Size My Solar System?
Several factors are considered when sizing your solar system, including the size of your home, your monthly average energy consumption, and your budget.
- A solar installer will typically look at daily expected energy use compared to average peak sunlight hours.
- They will also consider individual factors like the size of your home, how many electrical appliances you have, and how your energy demands change throughout the year.
- Even factors like the shade surrounding your home and its orientation to the sun are considered when developing solar installation plans.
Power Solutions is one of the most highly rated solar installers on Long Island. We use advanced software modeling to predict your energy patterns and design a solar array that maximizes energy production and savings. Our on-site inspections utilize satellite imagery, drone technology, and a professional visual inspection of your rooftop.
With our attention to detail and commitment to your long-term savings, you can get a home solar system to suit your unique needs.
There’s no risk in learning more today. Solar can reduce your electricity bill and secure your energy independence. Request your free ballpark solar estimate, and we will begin the consultation process.





