0€ Electricity bill from Manel
Llambiles, Girona
System of 4.9 kWp
Read more →Solar ROI Calculator: Find out your Solar Panels Payback
Discover how long it takes to pay back your solar panels with our ROI calculator
Opting to install solar panels is a smart decision that not only significantly reduces your electricity bill but also allows you to actively protect the planet. But how long will it take to recoup your initial investment? At Sunhero, we help you accurately calculate the solar panel payback so you can make informed decisions and maximise your photovoltaic system’s benefits.
Access Our Solar Panel Payback Calculator
How is solar panel payback calculated?
To calculate the payback period of solar panels, it’s essential to consider several factors that directly affect the time it takes to recover your investment:
Installation Cost: Total cost of panels, inverter, structure, and labour.
Monthly Electricity Bill Savings: Savings you generate each month compared to your consumption before installation.
Annual Solar Production: Amount of energy your solar panels generate in a year.
Grants and Tax Deductions: Financial benefits available through government support programmes.
Below, our solar panel payback calculator allows you to enter all these elements to see how quickly you can start generating returns on your installation.
Calculate your solar ROI payback time
The payback period for solar panels can vary depending on factors such as installation costs and energy consumption. On average, the payback period in Spain is usually between 5 and 8 years. With current subsidies, this period can be reduced to as little as 3 years in favourable cases.
At Sunhero, we offer a free tool to calculate the payback time for your solar installation. Enter your details in our calculator and discover how long it will take to recoup your investment easily.
How to use our payback calculator:
1. Make a copy of the document (File -> Make a copy)
2. Enter the data regarding the characteristics of your system or the system you received an offer for:
• System power
• Average electricity bill
• Solar system cost
• Battery yes or no
3. Add information about subsidies you’ll receive:
• Property tax amount – the discount is set at the municipal level
• Discount percentage
• Duration in years
• Income tax deduction
4. Data on energy cost:
• Contracted power in kW
• Use market prices
Example of solar ROI calculation
A home in Seville with east orientation and no shading. The following data applies:
| Average energy price: €0.30/kWh Annual electricity price increase: 2% Consumption habits: The client primarily consumes during the day |
Installation
Equipment: 10 AIKO 605 W solar panels + Huawei inverter (6.05 kWp installed power)
Estimated annual production: 6,500 kWh
Approximate installation cost: €9,500
Result
The savings generated allow the investment to be recovered in under 5 years.
Annual savings: €1,950
Payback period: 4.87 years
Testimonials from Satisfied Home Solar Installation Clients
