Solar Panel Calculator

Use our UK solar panel calculator, to calculate output, cost and savings.

Are you considering solar panels for your UK home? Use our complete solar panel calculator to help you make an informed and data-based decision.

Using the latest solar intensity data for your area, our tool can model the output of your system with 96% accuracy, helping you to understand just how beneficial solar panels could be for you and your energy bills.

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How the Solar Panel Calculator Works


When it comes to exploring the potential of solar energy for your home, you may have come across various calculators that estimate solar energy outputs, costs, and potential savings. But what if there was an all-in-one tool that simplifies this process, eliminating the need to hunt down separate calculators for different aspects of your solar panel journey? That's where MakeMyHouseGreen's Solar Panel Calculator steps in.

Estimating Solar Energy Output

One of the fundamental questions anyone considering solar panels asks is, "How much energy will I generate?" Our solar energy calculator answers this with precision. By taking into account factors such as your location, roof orientation, and solar panel efficiency, our tool accurately calculates your annual energy output from solar panels. But it doesn't stop there. We go the extra mile by providing a graph that showcases how much energy could be generated per hour, allowing you to visualise your potential solar energy production throughout the day.

Potential Solar Panel Savings

Saving money on your energy bills is a key motivator for going solar. Our calculator estimates your potential savings by considering the reductions in your energy bills and the additional earnings you can make through the Smart Export Guarantee (SEG).The SEG is a government-backed initiative that allows you to sell your excess energy back to the grid, turning your solar panels into a money-making asset. By including SEG payments in our calculations, we provide you with a realistic view of how solar panels can impact your finances.

Number of Solar Panels Required

Curious about how many solar panels you'll need to achieve your desired energy output? Our solar panel calculator has you covered. It can estimate the number of solar panels required for your property, considering your energy consumption needs.Want to see how adjusting the number of panels affects the cost and energy output? You can easily experiment with different scenarios using our tool, helping you find the perfect balance between energy goals and budget.

Calculating Solar Panel Costs

Understanding the costs involved in installing solar panels is crucial for any homeowner. Our calculator simplifies this by determining installation costs based on your chosen system size and location. We also consider any optional features or add-ons that may affect costs, giving you a comprehensive view of your potential expenses. Whether you're exploring a small solar setup or a larger system to meet your energy demands, our tool helps you explore various options to find the most cost-effective solution.

How to Use Our Solar Panel Calculator

To get started, simply answer a few questions about your property and your energy usage. Our tool combines your answers with solar intensity data specific to your area to estimate solar panel output, costs, and potential savings. Ready to see the numbers? Click the below button and let our solar panel calculator do the work. You'll receive personalised estimates tailored to your unique circumstances and property, helping you make informed decisions about harnessing the power of the sun.

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Understanding the results

Once you have entered all your information and fired off the calculator, you'll see a dashboard that looks exactly like this:

Let's break down the results to help you understand what each part means:

Expected Costs

The "Expected Costs" section provides a detailed breakdown of the financial aspects of your solar panel installation. It includes the following: Solar Panels & Installation: The cost of the solar panels themselves and the cost of installation. Additional Products: If you've chosen to include any supplementary products like solar batteries or electric vehicle (EV) chargers, their costs will be shown here.

Estimated Annual Savings

We provide a simple breakdown of the average amount of money you can expect to save each year over the next 10 years, thanks to the installation of solar panels. These savings are calculated based on your estimated energy production and usage patterns. As you explore different system sizes and configurations using our calculator, this figure will adjust accordingly, helping you understand the long-term financial benefits of going solar.

Solar Coverage Graph

The "Solar Coverage Graph" is a powerful visualisation of how your selected solar panel system can meet your daily energy needs. It showcases: Your Daily Energy Use: The graph displays your typical daily energy consumption, showing the peaks and troughs throughout the day. Energy from Solar Panels: The green bars on the graph represent how much of your daily energy consumption could potentially be covered by the solar panel system you've chosen. This visual representation helps you see when your solar panels are most productive and when you might draw from the grid or generate excess energy to sell back. It's a valuable tool for understanding how solar energy aligns with your daily life.

Next Steps

Impressed with the estimates you've received from our Solar Panel Calculator? When you're ready to take the next step on your green energy journey, consider booking a call with one of our green energy Gurus. These experts can provide you with a no-obligation consultation during which they'll recommend solar panel systems based on your property and energy needs. It's a hassle-free way to move closer to a greener and more sustainable future.

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