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Solar panels in Scotland: A guide

josh jackman
Written By
Christopher McFadden
Reviewed By
Updated on 6 January 2025
  • The average cost of solar panels in Scotland £7,191 
  • Solar panels can cut Scottish homes’ electricity bills by 62%, on average
  • Homeowners can save up to £6,000 with Scotland Home Energy Loan
  • CARES provides funding for solar project planning to community organisations 

If you own a home in Scotland, installing and using solar panels could save huge on your bills.

Given the current cost of living crisis, that’s not a bad prospect. What’s more, you’ll be helping the environment by using more clean energy. It’s a win-win if you ask us. 

But you might think solar panels aren’t worth getting in Scotland because it’s not sunny enough, but that’s far from true. While you might not generate as much electricity as someone in southern Italy, you’ll still cut your electricity bills by more than half by getting your hands on some solar panels.

You’ll also be ahead of the curve. Solar Energy UK has predicted the country’s solar capacity will triple by 2030.

This might partly be because solar panel costs are coming down, but it’s also because the Scottish government has made it easy for people to get them.

We’ll walk you through all things solar panels in this article, including costs and savings, as well as the government grants and initiatives you can only find in Scotland.

You can also compare solar panel prices with our help. Simply enter a few details, and we’ll put you in touch with our expert installers, who’ll get back to you with free solar panel quotes to compare.

Where do you want to install solar panels?

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Yes, they work really well in Scottish weather, producing enough energy to power your home with free electricity around half the time.

According to a 2020 University of Edinburgh study, Scotland receives a similar amount of sunlight to the rest of the UK, so it is as ideal for solar panel installations as elsewhere. They report that the average energy output of a domestic installation in Edinburgh is 10.6 kWh/day, which is only 13% less than London, at 12.2 kWh/day.

Another study by WWF Scotland found that since 2017, homes with solar panels have generated more than 100% of typical household electricity needs in seven different cities, including Edinburgh, Glasgow, and Dundee.

For instance, a summer heatwave in 2018 broke Scottish solar power records in multiple places. Solar panels provided Aberdeen with 136% of its average household electricity demand and provided Lerwick with 117%.

While they produce more electricity when the sun is shining, solar panels also work on cloudy days. They don’t require direct sunlight to generate electricity, which is great news given the weather of Scotland and the UK as a whole.

  • They can save loads on your energy bills 

The average three-bedroom home in Scotland can save £660 per year with solar panels and cut their electricity bills by 62%.

So, whether you have solar panels in Edinburgh, Glasgow, or the Highlands, they’re more than worth it in Scotland.

You can power half of your home’s electricity with solar panels, allowing you to sell the remaining solar energy to the grid through the Smart Export Guarantee.

Plus, solar panels are easy to install in Scotland since they typically don’t require planning permission.

  • They add value to your house

How solar panels affect the value of your house depends on who’s buying it.

However, in general, solar panels can increase the value of your property. According to a study by Solar Energy UK, this could be up to a 2% increase.

If it’s any reassurance, 65% of people would now buy a house with solar panels, according to our latest National Home Energy Survey.

  • There are a lot of schemes and grants to help with the upfront cost 

The UK and Scottish governments and regional initiatives offer a range of financial incentives to support solar panel adoption and energy efficiency. For example, the Energy Company Obligation 4 (ECO4), which runs from April 2022 to March 2026, provides partially or fully free solar panels to low-income households. 

Additionally, the Warmer Homes Scotland scheme, which has been active since 2015, offers up to £10,000 in funding for low-income households with low Energy Performance Certificate (EPC) ratings. While not specifically a scheme or grant, a 0% VAT rate on solar panel installations, including batteries, is available until March 2027, potentially saving homeowners up to £2,000 on a 4kW system. 

The Smart Export Guarantee (SEG) allows solar panel owners to earn an extra £45 to £80 annually by exporting unused energy, adding to potential total energy savings of £440 to £660. Meanwhile, the Public Sector Decarbonisation Scheme (PSDS) supports companies and institutions in decarbonizing their operations, with funding available until April 2025, though the amounts vary by region.

How many people in Scotland have solar panels?

There are more than 200,000 homes with solar panels in Scotland, according to the Microgeneration Certification Scheme (MCS).

Solar panels in Scotland are rapidly rising in popularity, with 2023 seeing 32,449 solar installations — an 18% increase compared to the same period in 2022.

According to the National Home Energy Survey 2024, solar panels are the most common low carbon technology in Scotland, and solar panel installations have increased 11% year-on-year.

This is an impressive level of growth, given that in 2009, just 24 households in Scotland installed solar panels. 57% of Scotland’s electricity was renewable in 2021, and we expect that number to rise in the future, as Scotland has a long-term commitment to green energy.

House sizeNo. of panels neededCostTonnes of CO2 saved / yearSavings / yearYears to break even

1-2 bedrooms

6

£4,315

0.3

£244

17.66

3 bedrooms

10

£7,191

0.5

£407

17.66

4+ bedrooms

14

£10,067

0.7

£570

17.66

Solar panels cost £7,191 on average in Scotland for a 3.5 kW solar panel system, including installation.

Solar panels continue to fall in price, which is great news for the 69% of people who ranked cost as the most important factor when buying green in our latest National Home Energy Survey.

If you’re already convinced that solar power can help you save money and want to get a free quote from an installer, fill in this short form. We’ll pass your details on to our network of qualified installers, who’ll be in touch shortly with free quotes for you to compare.
For more information, check out our handy guides to solar panel costs, the best solar panels, and the best solar panel installers. However, if you’re unsure and want to know how the government can help you pay for solar panels, read on.

Grant

What it’s worth

Who is eligible

How to apply

Home Energy Scotland Grant and Loan

Up to £7,500

Scotland residents only

Apply via the Home Energy Scotland website

Warmer Homes Scotland

Up to 100% of the costs

Energy-inefficient households on certain benefits, or with a member who is either over 75 years or has certain medical certificates

Apply via the Home Energy Scotland website

ECO4 Scotland

Up to 100% of the costs

Low-income, energy-inefficient households on certain benefits

Contact a participating energy supplier

Community and Renewable Energy Scheme (CARES)

Up to £80,000 for community building projects

Community organisations and charities

Fill in an application form on the Local Energy Scotland website

The Home Energy Scotland Grant and Loan

Home Energy Scotland Loan Flowchart

If you’re living in Scotland and think it’s time your home switched to solar power, the Scottish government is happy to lend a financial hand.

The Home Energy Scotland Loan is available to homeowners who want to make ‘energy improvements’ to their household. These improvements include:

• Heating systems, e.g., gas, oil, or LPG boilers

• Double glazing and secondary glazing

• Renewable energy systems, e.g. solar panels

• Energy storage systems, e.g. solar batteries

The maximum amount of money available for a solar panel installation loan is £7,500, which will cover the cost of a typical 3.5 kWp solar PV system. The loan is completely interest-free and is repayable across five years (if you borrow less than £5,000) or 10 years (if you borrow £5,000 or more).

Read our complete guide to the Home Energy Scotland Loan for more information.

Who’s eligible?

All homeowners in Scotland are allowed to apply, and each applicant’s credit rating is assessed to determine eligibility. Please note that successful applicants must pay an administrative fee of 1.5% of the borrowed amount.

The Scottish government suggests that you don’t install solar panels until you’ve officially received the loan offer in writing. If you start installing them beforehand, you won’t be eligible for the loan.

If you receive a loan, you’ll be given up to six months to borrow the money and install the solar panels.

How to apply

Call Home Energy Scotland on 0808 808 2282 to apply for the loan. You can also ask for a call back or for an email.

You’ll then be advised on which option is best for you. You’ll have to complete an online application form when you’ve decided.

Warmer Homes Scotland

Warmer Homes Scotland provides funding for home improvements to make homes warmer and reduce energy bills. This includes funding for renewable technology such as solar panels.

It’s worth noting though, that the scheme is more focused on home improvements such as heating and insulation, so getting approved to install solar panels through it might be tricky.

Who’s eligible?

To be eligible for a Warmer Homes Scotland grant, you must be a homeowner or a tenant of a private-sector landlord and have lived in the property for at least six months.

Your home also needs to meet all of the following criteria:

  • The property has a poor energy rating
  • Has a floor area of 230m2 or less
  • Meets Housing (Scotland) Act 2006 standards
  • Has a council tax band of A-F

Your household also needs to either have no central heating and include someone who is over 75, or include someone who has a DS1500 or BASRiS medical certificate, or someone who is on certain benefits.

You can find the full criteria on Home Energy Scotland’s page.

How to apply

Call Home Energy Scotland on 0808 808 2282 to apply for Warmer Homes Scotland or use their online tool.

The ECO4 Scheme

ECO4, the fourth iteration of the Energy Company Obligation Scheme (ECO), provides funding to help low-income households primarily for heating upgrades and insulation.

The scheme can also provide funding for solar panels if they are used to power an electrical heating system, such as a heat pump or an electric boiler.

Funding is available through ECO4 from July 2022 until March 2026.

Who’s eligible?

To be eligible for ECO4, your household income must be less than £31,000 a year, or you must receive certain benefits – you can find the full list on Ofgem’s website.

You can also become eligible if you are referred for the ECO4 scheme by your local authority, energy supplier, or doctor.

And, you need to live in a property with an energy efficiency rating between D and G if you’re a homeowner. It needs to be between E and G for rental properties or social housing.

How to apply

To apply for ECO4, you need to contact one of the energy suppliers offering funding through the scheme. This doesn’t need to be your current supplier, and you can contact more than one.

Here’s a list of suppliers that you can contact about ECO4:

  • British Gas
  • E (Gas & Electricity) Ltd
  • E.ON Energy (including Npower)
  • Ecotricity
  • EDF
  • Octopus Energy
  • Outfox the Market
  • OVO (Including SSE Energy Services)
  • Scottish Power
  • Shell Energy (formerly First Utility and formerly Hudson)
  • So Energy (Including ESB Energy)
  • The Co-operative Energy
  • The Utility Warehouse
  • Utilita Energy Ltd

You can find all their contact details on Ofgem’s website.

After getting in touch with a supplier, you’ll be asked to provide them with details on your income, any benefits you are on, and your home’s energy efficiency rating.

Community and Renewable Energy Scheme

The Community and Renewable Energy Scheme (CARES) was set up to encourage local communities across Scotland to adopt more renewable energy sources, including solar panels.

It works by allocating funding for community organisations and charities, with different funding rounds being released regularly.

It can cover up to 80% of the costs of projects on community buildings and acts as a support network for communities to help set up renewable projects.

Visit Local Energy Scotland for more information on when new funding is allocated and for details on how to apply.

Who’s eligible?

CARES funding is available to non-profit community organisations, faith groups, and charities. Applicants also need to be operating within a defined geographical area.

How to apply

To apply for CARES, you must first go to their project portal. If you’re eligible, you’ll then need to complete an application form indicating the technology you need funding for and submit quotes you’ve received from installers.

How many solar panels do I need to power a house in Scotland?

The average three-bedroom house in Scotland needs around 10 number 3.5kWh system solar panels. These will produce around 2,370 kilowatt hours a year.

Unfortunately, this amount of solar panels will only meet around 50% of your energy needs. This is because solar panels produce the most electricity in the middle of the day when most people are out of the house.

You can earn money from the electricity you don’t use through the Smart Export Guarantee (SEG), or you can invest in a solar battery to store electricity to use later.

How long will it take me to break even after buying solar panels?

If self-funded, the average household will break even on solar panels in Scotland after 17 years.

This is slightly higher than the UK’s overall break-even solar panel figure – 13.1 years. However, it still leaves you with at least a decade to enjoy the profit that comes with the free solar electricity your panels produce 

But you can cut this down a bit if you take advantage of government financial incentives to between 8 and 9 years (more on that later). 

Note, however, that these estimates are based on you getting a solar array that provides enough electricity to power half of your home’s needs – for example, a 3.5 kW system would achieve this for the average three-bedroom house.

You can then sell your excess solar energy back to the grid, which typically means an overall saving of 62% on your electricity bills.

Here’s a look at energy bill savings, breakeven points, and earnings after you’ve broken even based on the size of your solar panel system:

Solar panel system size

Average annual electricity usage

Average yearly savings

Breakeven point

Average earnings after 25 years

2.1 kWp

1,400 kWh

£270

17 years

£2,200

3.5 kWp

2,400 kWh

£440

17 years

£3,800

4.9 kWp

3,300 kWh

£600

17 years

£5,500

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  • Using solar panels in Scotland can cut your electricity bills by 62% on average.
  • You’ll typically break even on your purchase in 17 years if self-funded (less with financial help from grants and schemes) from the savings on your bills you make throughout your solar panels’ 25-year lifespan.
  • Several government grants and loan schemes are available in Scotland to help you with the upfront costs of solar panels.
  • If you feel like you’re ready to get solar panels but don’t know where to start, we can help. Enter a few details into our quotes form, and our network of trusted solar panel installers will be in touch with offers.

Written by

josh jackman

Josh has written about and reported on eco-friendly home improvements and climate change for the past four years.

His data-driven work has featured on the front page of the Financial Times and in publications including The Independent, Telegraph, Times, Sun, Daily Express, and Fox News, earned him the position of resident expert in BT's smart home tech initiative, and been referenced in official United Nations and World Health Organisation documents.

He’s also been interviewed on BBC One's Rip-Off Britain, BBC Radio 4, and BBC Radio 5 Live as an expert on everything from renewable energy to government policy and space travel's carbon footprint, and regularly attends Grand Designs Live as a Green Living Expert, giving bespoke advice to members of the public about heat pumps and solar panels.

Josh has also used the journalistic skills he developed at The Jewish Chronicle and PinkNews to investigate and analyse every green government grant in existence, and examine the impact on the climate of cryptocurrency, Glastonbury Festival, and the World Cup.

You can get in touch with Josh via email.

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Reviewed By

Christopher McFadden

Christopher is an Environment, Health & Safety (EHS) specialist with extensive experience advising consumer and trade clients on energy efficiency and sustainability. With a Master's in Earth Sciences from Cardiff University, Christopher has attained professional energy and sustainability auditing qualifications and various postgraduate certificates and diplomas. He is a qualified and accredited Level 3 and Level 4 non-domestic and domestic energy assessor, a Green Deal assessor, and a Practitioner member of the Institute of Environmental Management and Assessment (IEMA). He also recently qualified as a level 5 Retrofit coordinator. In addition to his day job, Christopher has also honed his skills as a STEM writer for several well-known online publishers, sharing his knowledge and passion for science, engineering, and dinosaurs with millions of readers around the world.

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