There are several advantages to installing a solar system in your house, but solar panel ROI is the one everyone is most curious about. What sets solar panels apart from other home improvements is that you may recoup the money you put into them every month in the form of lower energy bills. The financial viability of switching to renewable energy sources may be determined by projecting how much money will be saved over time. The IRR (internal rate of return) is a tool used by financial professionals for this purpose; it measures the rate at which an investment generates a profit. The easiest way to determine whether solar electricity is a smart investment for you is to compare the internal rate of return you may anticipate from your solar project to the rate of return from your main alternative.
How solar panels return their investment
The owners of solar cells might profit in two ways. The first way is by spending less money on power. The quantity of electricity used by your home’s appliances and electronics each day is calculated in kWh (kilowatt-hours). The cost of electricity may be reduced to almost nothing by installing a solar energy system tailored to your requirements. Solar incentives are the second method through which solar cells reduce costs. ROI for a solar system is higher if you reside in the proper state, as investing in solar energy may pay you handsomely thanks to tax advantages and periodic bonus payments. With the appropriate combination of electricity bill reductions and incentives, the ROI for a solar system may be higher than the stock market.
The solar panel investment return formula
Everything you need to know about solar panel ROI is:
- The return on investment for solar cells is very context- and individually-dependent.
- Modern spreadsheet applications make it simple to compute solar panel ROI if you have a solar estimate with projected costs and savings.
- In the United States, solar installations typically have a 10% ROI for a solar system.
The ROI for a solar system is determined by comparing the net installation cost after initial rebates with the estimated savings on utility bills and the expected lifetime of the rebates.
Calculating internal rate of return (IRR) in Spreadsheets
Excel and Google Sheets make it easy to determine the internal rate of return. As most solar panels have a 25-year warranty, you should begin by creating a column with those numbers in the cells. The first cell should include the total amount invested in the system after any initial incentives have been subtracted. kWh generated multiplied by your retail rate in net metering states equals your annual savings on power expenditures. Your net investment in the first year of operating your solar installation should be less than the sum of these two numbers.
The cells should show positive values for each of the following 24 years, totaling the amount of future savings and incentives on energy costs. The annual decline in solar energy output is estimated to be 0.5%, while the annual rise in power costs from the utility company is estimated to be 2% (but it might be more or less depending on where you live). Central solar inverters for PV systems often need to be replaced between years 10 and 15, cutting annual revenues by roughly $1,500. Nevertheless, you won’t need to account for this extra cost if you use microinverters since they are designed to last for 25 years and often come with warranties of the same length.
The solar panel ROI vs. other investments
Here’s how you might evaluate solar panel ROI concerning other investments:
- Find out how much money you’ll need to put into the solar power system upfront. Expenses like a solar battery and other accessories are included in this total.
- Try to predict how much power will be generated. The anticipated energy output of the solar panel system may be estimated using online tools or by working with a solar panel system installation.
- Find out what the price of power is. Find out what your local power rates are. Calculating how much money you would save by producing your own power with the solar system is made easier with this tool.
- Try to predict how long the solar panel installation will last. The average lifetime of a solar panel is 25–30 years. Determine the savings throughout the system’s estimated lifetime by making a conservative estimate of the system’s expected lifespan.
- Find out how much money you will save altogether. The entire cost savings from using solar panels may be calculated by multiplying the estimated energy output by the price of electricity.
- Determine the payback period for the solar power installation. To calculate solar panel ROI, take the entire amount of money you saved and divide it by your original investment.
- Choose alternative investments for evaluation. Find alternative investment options like stocks, investment companies, or property to evaluate against the solar panel ROI.
- Determine the return on the other investments. Figure out how much you can put in and how much money you can anticipate making from various investment opportunities.
- Evaluate the various rates of return. Think about how the solar panel ROI stacks up against the returns you may get from other investment opportunities. Choose the plan that gives you the best return on your money.
It’s vital to take in the risks and volatility of the investment, the tax advantages of investing in solar energy, and the possibility of future energy price hikes when evaluating the solar panel ROI against other investments.
Tips for reducing the cost of solar panel installation
Compare prices, quality, and features among a number of popular solar panel manufacturers and types before making a final decision. Check out ratings and reviews written by actual customers to help guide your choice. Get in touch with several local solar panel providers to compare prices and services. Explore your options by comparing the bids. Think about how much something will cost you during its lifetime before making a final decision (ROI for a solar system). Consider the energy you’re producing, how long your warranties are, and how much it costs to maintain. If you follow these simple tips, you should be able to save money on solar panels. Solar energy investments provide long-term advantages, including lower energy bills and higher property values, which should be taken into account.