---
title: What Is The ROI On A Solar Carport Installation? How It's Calculated
description: Discover how solar carports can transform wasted parking spaces into energy-generating assets, providing significant ROI and reducing carbon emissions for UK businesses.
image: https://solspan.uk/hubfs/Mid%20Kent%20College%20Complete%20EDITED%20LS.jpg
---

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# What is the ROI on a solar carport installation? And how is it calculated?

Posted May 29, 2026 11:33:35 AM by [Admin](https://solspan.uk/blog/author/admin)

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Did you know that UK businesses could save more than £1.4 billion and 570,000 tonnes of carbon over ten years by turning their carparks into solar energy?

This is just one staggering statistic revealed by our research into how much potential there is across the UK for businesses, schools and hospitals to create their own energy by installing [solar carports](https://solspan.uk/solspan-solar-carports-car-parks-commercial) like our French neighbours.

And to help businesses across the UK work out their return on investment (ROI), we developed an easy-to-use interactive [Solar Savings Index calculator](https://solspan.uk/solar-savings-index?hsCtaAttrib=195678382272).  

## **Solspan’s Solar Savings Index**

We collected data on the estimated number of car park spaces for 500 large businesses across the country, annual sunlight hours for different UK regions and current business electricity rates.

From this data, we were then able to calculate the financial, carbon and energy savings that the UK could be making if solar carports were installed.

We also dug deeper into the data, providing customised recommendations for a wide range of businesses from oil and gas, banking, insurance and mining, as well as retail and hospitality and organisations like hospitals and schools by taking into account sunlight hours depending on location.

In addition, we analysed the potential number of EV charges [a solar carport installation](https://solspan.uk/featured-projects) could provide, depending on the number of carpark spaces a company or organisation has, and developed our Solar Savings calculator.

## Get an instant Solar Carport ROI calculation

If you think about it, most carparks are wasted resources, sometimes lying empty at weekends or during the week when they could be turned into electricity-generating powerhouses.

So, if you install a solar carport, you’re not only saving money on your electricity bills but helping to reduce your carbon footprint.

You can calculate ROI, financial returns, carbon savings and the estimated number of EV charges with our Solar Savings Index calculator.

## Solar carports generate more electricity than solar roof panels

While solar roof panels may be less expensive, they won’t generate as much electricity as solar carports.

Solar roof panels are often limited by the amount of available and suitable space and the roof’s strength, orientation and design, whereas covering a carpark in solar carports has none of these obstacles.

In fact, solar carport capacity can be double, treble or quadruple compared to roof solar panels, so while there is a longer payback, you will receive better value for your money over the long term.

### A sustainable increase in profits while cutting carbon

Many companies and organisations often talk about reducing their emissions, but by installing solar carports, you are making a bold statement about your commitment to sustainability initiatives to reach net zero.

It sends a powerful message to all your customers, stakeholders and staff, boosting their loyalty and generating positive marketing messages for the company or organisation, helping to boost profits.

Also, the frames we use on solar carports can be recycled and reused helping your sustainability ratings.

### EV charging stations accelerate ROI

If we’re to get to net zero by 2050, then the UK needs to massively ramp up its EV charging capacity and infrastructure.

Our research shows that solar carports with EV capacity could charge a potential 166 million electric vehicles a year for large businesses, 1.66 billion over ten years.

Solar carports can be easily fitted with EV charge points, providing you with the opportunity to bring in extra income from charging customers to speed up ROI or to provide cheap energy to employees.

## Solspan Discovery Report tailored to your business or organisation

Once you use our Solar Savings Index calculator, we provide you with a <https://solspan.uk/about-us-solspan>[Solspan](https://solspan.uk/about-us-solspan) Discovery Report which details expected carbon and financial savings, illustrated with graphs showing your estimated power output.

We offer two types of feasibility studies, including a desktop report and an on-site report, which will include a site visit.

If you’d like to find out more about how much solar carports can save you, please [get in touch](https://solspan.uk/contact-solar-carports-carparks-solspan).

### Related content

### [![Councils making use of solar caport canopies & covers](https://solspan.uk/hs-fs/hubfs/Mid%20Kent%20College%20Solar%20Carport%20(14).jpg?width=600&height=400&name=Mid%20Kent%20College%20Solar%20Carport%20(14).jpg) Plug Into Profit | How Local Councils Can Maximise EV Charging Revenue Cash-strapped councils across the UK are installing thousands of EV charging points in... Continue reading](https://solspan.uk/blog/how-local-councils-can-maximise-ev-charging-revenue)

### [![Solar Carport structure](https://solspan.uk/hs-fs/hubfs/hp-slide-1.jpg?width=600&height=400&name=hp-slide-1.jpg) Solar Module Prices Are Rising — What This Means for Public-Sector Decarbonisation Projects in 2026 After more than a decade of steady declines, global solar module prices are now moving... Continue reading](https://solspan.uk/blog/solar-module-prices-rising-2026)

### [![Solar Panel energy](https://solspan.uk/hs-fs/hubfs/Vitasol%20Carport%20websized.jpg?width=600&height=400&name=Vitasol%20Carport%20websized.jpg) How Healthcare Sites Can Increase Energy Resilience Did you know that the NHS is the single biggest public sector energy user with an... Continue reading](https://solspan.uk/blog/healthcare-sites-increase-energy-resilience)

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