ROI of Solar Panels

03/15/23 | Solar

ROI of Solar Panel Installation on Your Roof

Installing solar panels on your roof is becoming increasingly popular as people are looking for ways to reduce their carbon footprint and save on their energy bills. However, the decision to install solar panels is often met with hesitation as homeowners wonder if the cost is worth the investment. In this blog post, we will discuss the return on investment (ROI) of solar panel installation on your roof with HD Roofing & Solar, a trusted and experienced solar panel installation company in your area.

First, let’s define ROI

ROI is a financial metric used to evaluate the profitability of an investment. It is calculated by dividing the net profit by the cost of the investment. In the case of solar panel installation, the net profit is the amount of money saved on energy bills over the life of the solar panels, minus the cost of installation.


The cost of solar panel installation varies depending on factors such as the size of the system, the type of panels, and the complexity of the installation. According to EnergySage, the average cost of a 6kW solar panel system in the United States is $12,810 after tax credits. However, this cost can be significantly lower or higher depending on where you live and the specific factors of your installation.

To calculate the ROI of solar panel installation, we need to know how much money we will save on energy bills over the life of the solar panels. This can be calculated by estimating the average monthly energy production of the system and multiplying it by the cost per kWh of electricity in your area. According to the National Renewable Energy Laboratory (NREL), the average energy production of a 6kW solar panel system is 9,000 kWh per year.

Solar Calculations

Let’s say the cost of electricity in your area is $0.12 per kWh. Multiplying 9,000 kWh by $0.12 gives us a total energy cost savings of $1,080 per year. Over the 25-year life of the solar panels, that’s a total energy cost savings of $27,000.

Now let’s subtract the cost of installation from the total energy cost savings. If we use the average cost of a 6kW solar panel system of $12,810, the net savings over the life of the solar panels is $14,190.
Dividing the net savings by the cost of installation gives us the ROI. In this case, the ROI is 1.1, or 110%. This means that for every dollar spent on solar panel installation, you will save $1.10 over the life of the solar panels.

Solar Panel Wattage

Of course, these calculations are based on several assumptions, including the cost of electricity, the energy production of the solar panels, and the cost of installation. However, even with conservative estimates, solar panel installation has a high ROI and can be a worthwhile investment for homeowners.

In addition to the financial benefits, solar panel installation also has environmental benefits, as it reduces your carbon footprint and reliance on fossil fuels.


In conclusion, the ROI of solar panel installation on your roof can be significant, with homeowners saving thousands of dollars over the life of the solar panels. If you’re considering solar panel installation, it’s important to do your research and get multiple quotes from reputable solar panel installation companies like HD Roofing & Solar. With the right information and installation from HD Roofing & Solar, solar panels can be a smart investment for both your wallet and the planet.

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