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Last Updated: February 25, 2025
A solar panel array will provide you with a renewable power source that will eventually pay for itself. Switching to solar energy can reduce your monthly energy expenses and shrink your carbon output. Before you begin the process, you want to make sure you find a trustworthy installer. Luckily, we've reviewed the options and assembled a guide to the best and most trustworthy solar installation providers in Islip.

Our Rating
User Rating
Clear pricing policy
Informative resources
Prompt service delivery
Reliable customer support
Services Offered

Our Rating
User Rating
Free quotes
Reliable customer support
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Prompt service delivery
Clear pricing policy
Free quotes
Informative resources
Reliable customer support
Services Offered

Our Rating
User Rating
Reliable customer support
Free quotes
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Informative resources
Clear pricing policy
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Reliable customer support
Prompt service delivery
Informative resources
Clear pricing policy
Services Offered

Our Rating
User Rating
Free quotes
Informative resources
Clear pricing policy
Reliable customer support
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Reliable customer support
Prompt service delivery
Free quotes
Services Offered

Our Rating
User Rating
Free quotes
Reliable customer support
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Informative resources
Reliable customer support
Prompt service delivery
Clear pricing policy
Free quotes
Services Offered
Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:
Putting solar panels on your roof could cut your electricity payments while helping the environment by reducing your carbon footprint through renewable energy use. Key considerations when researching local solar installers are as follows.
It's important to hire a licensed solar installer. This help guarantee that the work is done correctly using the most up-to-date installation methods. New York state does not issue licenses to contractors, so you should check with your city or county government for its specific requirements and regulations.
Check the Better Business Bureau (BBB), TrustPilot, Google Reviews, and other review sites to see what past customers are saying about local solar installers. Detailed reviews on these platforms can help you assess a provider's trustworthiness and customer service. Avoid companies with few or mainly poor reviews.
Contact 3–5 solar companies for free, detailed quotes. Quotes should clearly explain all costs and list the exact solar components included. Comparing multiple quotes helps identify the option that best fits your budget.
Quality solar installations should come with strong workmanship and performance guarantees. A workmanship guarantee addresses any installation defects (such as cracks in the panels, poor wiring, or poor alignment), while a performance warranty ensures a certain level of energy production. Strong guarantees demonstrate a company's confidence in its work.
Solar energy is great for helping you lower electricity bills over time. Be sure to consider these aspects when considering the final cost and value of solar panels.
Islip homeowners typically spend about $9,930 on home solar systems after federal tax refunds. Solar arrays in Islip cost approximately $3,650 per kilowatt, with the average residential solar system being 3.9 kilowatts. An estimate from a local solar provider will include costs for preliminary work, permit fees, and labor, and will account for your system's capacity, size, and panel type. Some homeowners prefer to lease their solar panels in order to reduce upfront costs.
Incentive Type: Sales Tax Incentive
Incentive Amount:
100% exemption
Incentive Type: Sales Tax Incentive
Incentive Amount:
Upon local authorization, 100% exemption from local sales tax
Incentive Type: Corporate Tax Credit
Incentive Amount:
$0.01/gallon for each percent of biodiesel
Incentive Amount:
Appliances
Advanced Power Strips: $10 - $20
Air Purifier: $25 - $50
Clothes Dryer: $50 - $250
Clothes Washer: $50
Dehumidifier: $30
Dishwasher: $50
Exhaust Fan: $20 - $25
Electric Freezer: $30
Heat Pump Water Heater: $650
Pool Pumps: $150 - $350
Refrigerator: $50
Refrigerator Recycling: $50
Lighting
Instant Rebates Vary by Product
Bulk Light Purchases: Up to $2 - $3/unit
Cooling & Heating
Central Air Conditioning: $450
Smart Thermostat: $85
Ground Source Heat Pump: $2,000/ton
Incentive Amount:
Incentive rates step down over time as MW goals are met. Incentive rates as of 11/27/2019 are:
Residential:
Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.30/W
Upstate Region: $0.35/W
Low-to-Moderate income customers: $0.80/W (up to 10 kW)
Small Commercial (Non-Residential):Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.60/W
Up State Region: $0.45/W
Multifamily Affordable Housing Adder: additional $0.40/W (up to 50 kW)
A solar photovoltaic (PV) system can generate power to run any electric system or appliance in your home. A more specific example is installing a solar heating system for your water.
With home solar energy, you can save money on your energy bill, lower your home's carbon footprint, and be better prepared if there's an outage to the local grid.
It depends on your home's location and what type of panels you're installing. Since there's a moderate amount of snowfall in Islip, your best time to install solar panels is in the spring and fall.
Yes, it's possible to use home solar energy alongside conventional power sources. In most parts of the country, solar panels are designed to supplement your existing energy sources, meaning that you can reap the environmental benefits and savings of solar energy without having to completely switch over.
Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in Islip amount to $895.
While solar energy might not be ideal for some in wet or dark areas, the latest generation of equipment and energy storage systems could increase your property's solar viability enough where you could achieve a return on investment. A contractor could also recommend a different primary source of renewable energy like wind or geothermal to boost your generation.
Yes, solar panels will still be able to generate energy during a grid outage. To ensure that your solar system will keep working during a power outage, make sure to choose a quality solar provider and look for a solar system that includes a battery backup.
Some frequently-used types of home solar panels in Islip include polycrystalline, monocrystalline and thin-film. Monocrystalline panels are balanced and efficient, while thin-film and polycrystalline panels pair good performance with greater upfront value. Talk with your local provider about what kinds of solar panels they work with.
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