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Why get solar panels?

  • Generate free, green electricity
  • Reduce your electricity bill by up to 64%
  • Get paid for what you don't use

How much do solar panels cost in the UK in 2024?

You can cut your energy bills by as much as £700 every year

Solar panel costs depend on several factors, including the size of your house and how much electricity you use

A solar battery lets you store and use electricity, meaning you pay for less long term 

It takes less than 15 years to break even

You should look for at least quotes from different installers before making a choice


Solar panel installation costs have fallen sharply in the past 12 months, according to the Microgeneration Certification Scheme (MCS) dashboard. In March 2024 so far, the solar panel installation costs have averaged at £9,075.61 compared to the biggest peak in May last year where it surpassed £10,000. 

While the price of solar panels has gone down, the price of electricity remains high. From April 2024, the cost of electricity per kilowatt (kWh) will drop to 24.50, meaning solar panels will save the average household £483 per year, or 73% on average (if you utilise the Smart Export Guarantee). This is a huge saving, especially in a cost-of-living crisis. 

Plus, it takes less than 15 years for the average household to break even on their solar panels, according to our calculations, which leaves 10-15 years of pure profit. With all these savings, it’s not hard to understand why more than 1.4 million UK households have had solar panels installed, according to the latest MCS data

When it comes to actually getting solar panels installed on your property, solar panels installers Everyone’s Energy recommend getting at least five quotes from different installers before making a choice. 

We can make this easy for you with our quick quotes form. All you have to do is provide a few quick details, and our network of trusted solar panel installers will be in touch with free quotes for you to compare. 

You can also check out if you’re eligible for any grants, as well as find out about any scheme and tax incentives using our guide: How to get UK government grants and funding for solar panels for your home in 2024

Use the table below to gain a better understanding of installation costs, as well as information on the time it takes to break even and the pure profit you can expect after 25 years.

Cost of solar panels for different house sizes

0 out of 0
Property size
Annual electricity usage
Number of solar panels
Average installation cost*
Annual electricity bill savings**
Time it takes to break even
Solar panel profit after 25 years

1-2 bedroom house

3 bedroom house

4 bedroom house

1,800 kWh

2,700 kWh

4,100 kWh

6

10

14

£4,216

£7,026

£9,837

£289

£483

£676

14.55 years

14.55 years

14.55 years

£3,026

£5,042

£7,060

* Please note: These prices are based on Microgeneration Certification Scheme (MCS) cost data (March 2024), the average price of electricity (April-June 2024), and Ofgem's latest typical domestic consumption values (2024). Total costs may increase with more complex installations. The above estimates do not include the cost of a solar battery.

** Includes estimated Smart Export Guarantee payments

How much will solar panels cost?

The cost of solar panels will be different for every household, which is why it’s best to get multiple quotes from different suppliers. Look at other factors, like customer rating, as this will help you have a better service overall. 

The cost of solar panels is based on numerous factors. According to solar panel installers, Everyone’s Energy, the price can be influenced by the size of your house, your electricity usage and the number of solar panels you choose. Even the type of roofing, the height of your home and where your electric cables are will also have an effect. 

This will also affect the time it will take to break even. For a rough estimate on solar panel costings to help you determine affordability, visit our cost calculator page. 

For example, solar panels for the average three-bedroom house will cost £7,026. This is according to our calculations and industry averages. 

This is the average price of a 3.5 kilowatt-peak (kWp) system, which is typically the right fit for a standard three-bedroom house.

Did You Know?

‘Kilowatt-peak’ is the unit used to measure the power output of a solar panel system. It’s the amount of power that a solar panel or array will produce in perfect conditions.

A household with one or two bedrooms will generally need a 2.1kWp system, which costs around £4,216 for 6 panels. If you live in a four or five-bedroom house, you can expect to pay £9,837 for 14 panels, according to the latest data from MCS. 

Interview with a solar panel owner

Solar panels on the roof of a house
Tilly Casson
Homeowner
Tilly lives in Farnham, Surrey, and she has owned solar panels since November 2021

Is there anything you wish you'd known before you bought solar panels?

“First one is a smart meter. I wish I had realised I did not need to get a smart meter for the SEG* — I thought I had to, but in reality with the way the prices are and what they give you back, I wish I had my old mechanical meter.

“I believe the SEG application needs to be made a lot smoother and easier.”

Factors that impact solar panel costs

There are three key factors that affect the price of solar panels:

  • Panel type: Some panel types, such as monocrystalline solar panels, cost more than others. This is because they use the latest technology and are highly efficient
  • Panel efficiency: The more sunlight a solar panel can convert into electricity per sq metre, the more expensive it will be 
  • Panel number: More solar panels means more materials, which means a higher cost. You can limit the number of panels you need by choosing highly efficient ones

If you want to know more about solar panel efficiency, or find out how many you need, head over to our guides.

The cost of adding a solar battery

A solar battery allows you to store the excess electricity your solar panels generate during the day so you can use it after the sun goes down. 

With a solar battery, you’ll typically use an extra 30% of your solar energy and it will take you an extra decade to break even. The reason for this is that batteries only last around 12 years and you’ll probably need to buy two over the course of your solar panels’ 25-30 years. 

The average cost of a solar battery for a three-bedroom house is £4,500, meaning you could pay up to £9,000 over the lifespan of your solar panels. 

For a 1-2 bedroom house, the cost of installing just the solar battery is approximately £2,500, while four-or-more bedrooms are looking at £8,000. 

But what price are you looking at to install both? 

The table below explains just that. We’ve calculated the costs to install both solar panels and storage, but again, this price will differ depending on the factors listed above:

Property sizeAnnual electricity usageNumber of solar panelsBattery sizeSolar-plus-storage system cost

1-2 bedrooms

1,800 kWh

6

4 kWh

£6,716

3 bedrooms

2,700 kWh

10

8 kWh

£11,526

4+ bedrooms

4,100 kWh

14

9.5 kWh

£17,837

However, homes are limited to a certain battery size. The larger the capacity of your battery, the more electricity it can store. Of course, this does come with a higher cost. 

Before you decide if a solar battery is the right move for you, check out our guide to the best solar batteries. We also go more in depth on solar battery costs in this guide, where you can find out what a solar battery is, how it works and if there’s any government grants or incentives available.

Solar panel costs breakdown

The cost of your solar panel installation will ultimately come down to much your installer charges. Each supplier will likely be different so reach out to several to make a more informed choice. 

As a guide, installers will charge different prices for: 

  • Parts – the materials used (solar panels, cables, inverters, etc) 
  • Business costs – your installer’s overheads, including scaffolding, getting approvals/planning, as well as vehicle and travel expenses
  • Labour – the work of installing a solar panel system

Solar panel material costs: £1,900-£4,400

Typically, 40-50% of the installation costs will go towards buying the materials, including panels, brackets, and an inverter – which will be around £3,150 for the average three-bedroom household. 

An inverter converts the direct current (DC) electricity your panels produce into alternating current (AC) electricity, which can power electricity into your home. 

The installation company will mark up the basic cost of these materials by around 30% to make a profit, which is standard practice in this industry and many others. Suppliers will be able to break down the costs of each material, if asked, so any concerns, don’t hesitate to ask them.

Solar panel business costs: £1,500-£3,400

High costs are inevitable when installing anything and for solar panels specifically, approximately 30-40% of the price you pay goes towards paying your installers business expenses. 

These expenses include regulatory approvals, including planning permission, vehicles, fuel and scaffolding. 

For reference, the average 3.5kWp solar installation will come to approximately £2,450.

Solar panel labour costs: £800-£2,000

The other 10-30% of the cost goes towards paying for labour of the people who will actually fit your panels and the associated kit. 

This range should cover all domestic installations, including large jobs with more than 20 panels. 

That’s great value, especially when you consider that doing it yourself could cost £3,000 more than hiring a professional. 

According to Everyone’s Energy, customers should be aware of installers pushing limited-time offers on solar panels. Instead, you should get quotes from at least five reputable installers and check their TrustPilot reviews before signing a contract.

Is there any way to cut the cost of solar panels? 

Solar panel and battery installation can be pricey, but the good news is that there are schemes and other incentives to help reduce the cost. Here are the main ones: 

  • The government’s ECO4 scheme: Funding for solar panels for energy poor households on certain benefits
  • Solar together: A group-buying scheme that can save you 30-35% on the cost of solar panels
  • The Home Energy Scotland Loan: An interest-free loan for solar panels available for most Scottish residents
  • The Home Upgrade Grant: Funding for solar panels for low-income, off-grid households

For more information on eligibility requirements and how to apply for these schemes, check out our guide to solar panel grants.

Can you get solar panels on finance? 

You can absolutely get solar panels on finance, from a variety of established companies, including:

  • E.ON
  • Scottish Power
  • SolarStyle
  • Sunsave

E.ON solar panels, for example, can be bought on finance. Its interest-free option enables you to get a typical six-panel (2.61 kWp) solar system installed for £241.04 per month over 24 months. Prices for six panels start with E.ON from £5,785. 

Solar panel maintenance costs

There are three future solar panel maintenance costs you should consider: 

  • Inverter replacement
  • Maintenance and repair
  • Cleaning

Solar panel inverter

The solar inverter is a key part of any solar panel system, converting electricity from DC to AC. This needs to happen before the inverter can be installed. 

The cost of your inverter will be included in the final quote of your solar panel system, which will approximately be between £500-£1,000, depending on the power you choose. You should remember, however, that inverters only last 10 years, while solar panels last for 25-30, so you’ll need to factor in double the cost to get a more accurate figure.

Maintenance and repair

Solar panels are quite robust and don’t break often, but there’s always a chance they could fall prey to freak accidents, like falling trees, stray cricket balls, extreme weather, or birds developing a taste for wires. 

You can prevent that last issue from happening though, by bird-proofing your solar panels when you get them installed. It’s also a good idea to ask your installer what repairs or maintenance costs their warranty covers.

In the event of any other mishap, you should always hire a professional solar panel repair company. Small breakages can be fixed for £80, while sweeping repairs could cost you up to £1,500.

Cleaning

Frequent rainfall keeps the UK’s solar panels clean, for the most part. 

However, if you notice your solar panels becoming dirty – for example, dust building up on them during a dry, hot summer – you should consider getting them cleaned. 

Solar panel cleaning by a professional will cost around £100, but you can also do it yourself with a hose.

How much money can I save by installing solar panels? 

Solar panels offer savings between £280 and £700 for most homes on their annual electricity bills. This can go a long way to relieving some of the pressures you might be under with the ongoing cost-of-living crisis. 

The savings you make with solar panels will depend on these factors: 

  • The size of your solar panel system
  • Your home’s electricity consumption
  • Whether you use a significant amount of electricity during the day
  • Your solar panels’ efficiency level
  • Your SEG rate

Another way to potentially save once you have solar panels installed is by shopping around. You can use price comparison websites to find the best price for your home, or go to different supplier websites to find out individual prices. 

What’s more, using a solar battery – which we go into more detail about below – and exporting less electricity to the grid via the SEG will result in lower SEG payments, around £63, since you’ll be using solar electricity and exporting less back to the grid. 

Either way, if you install a solar battery, you’ll be paying for less electricity from the grid, as you will be using stored electricity. This will save you approximately £227 more on electricity than with solar panels alone.

When will I break even on solar panels?

It will take the average household almost 15 years (14.55 to be precise) to break even, according to our calculations. 

Solar panels typically last at least another 10 years after this point. A three-bedroom household will end up with a total profit of £5,042.72 in energy bill savings and SEG revenues, on average. A one-to-two bedroom home will have a total profit of £3,025.63, while a four bedroom home will generate £7,059.80. 

We base our calculations on the latest MCS data on solar panel costs, and the yearly daylight hours in the UK. Please check out our full page: Are solar panels worth it? for all the nuts and bolts.

How long does a solar panel installation take?

Solar panel installation usually takes one to two days, but larger installations – ones of over 14 panels – can take up to four days. 

Much of this time is taken up with carefully constructing the scaffolding, so don’t be concerned if it’s been a few hours and there still aren’t panels on your roof.

How do you find a good solar panel installer?

To find a good solar panel installer, shop around and ask about not just price, but warranties.

The best solar panel installers offer 20-30-year product warranties, and at least 10-year long workmanship warranties. 

It’s also important to look at reviews from third party websites such as TrustPilot. If the company does other work besides installing solar panels, you can usually filter the reviews for the word ‘solar’ and find all the ones relevant to you.

Six things to consider before buying solar panels

There are a lot of things to consider before buying solar panels. Here are six questions to ask yourself before you finalise your purchase: 

  • Is your roof suitable for solar panels? Make sure your roof is at the best angle and direction for solar panels. Ideally, south facings (although east or west facing is fine) and at an angle between 10 and 60 degrees
  • Do you need a structural inspection on your roof? A set of 10 solar panels typically weighs 200kg, so it’s always best to check that your roof can support the extra weight
  • What size solar panel system is right for you? Figure out how much electricity your household uses, as this will give you the best estimate for what size solar panel system meets your needs
  • Should you install a solar battery along with your solar panels? Solar batteries allow you to use more of the electricity your panels generate. This will reduce your carbon footprint and electricity bills even further, but will cost an additional £4,500 to install
  • Can you sell your excess energy instead? If you want to forgo the cost of a solar battery, you can sell the energy you don’t use back to the grid with the SEG. Just make sure to set this up before your panels are installed What’s more, most companies will insist that you have a smart meter to be able to take advantage of SEG
  • Have you compared solar panel prices? Don’t just go with the first installer you find. Compare quotes from five reputable solar panel installers, and go with the option you feel suits you best

Next steps

Now that you have an idea of how much solar panels cost, it’s time to contact an installer. 

To speed up the process, use our free custom-built tool. Just provide a few quick details about your property, and we’ll put you in touch with our expert suppliers, who will provide you with quotes to compare.

Solar panel costs FAQs

Solar panels are definitely worth it in the UK. Despite what you might think, solar panels work in cloudy weather, which the UK is no stranger to. The average three-bedroom home will save around £482.76 per year on their electricity bills with solar panels.

A 3.5kW solar roof tile system costs £14,550, on average, almost twice as much as a solar panel system of the same size.

This is because installing solar roof tiles involves retiling your roof, adding to the installation time and driving up labour costs. 

If you have a four-bedroom house, you’ll need a 5kW system – which will cost you £20,250 on average.

Written by:
josh jackman
Josh has written about eco-friendly home improvements and climate change for the past four years. His work has been displayed on the front page of the Financial Times, he's been interviewed by BBC One's Rip-Off Britain, and he regularly features in The Telegraph and on BBC Radio.
Reviewed by:
Tamara Birch, senior writer, The Eco Experts
Tamara has written about environmental topics for more than four years. This includes advising small business owners on cost-effective ways, like solar panels and energy-efficient products to help them become more sustainable. 
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