Solar advice hub

Explore our wide range of solar & battery advice guides, including information about typical costs, savings, and related technology.


Sunsave Plus

Read all
A polycrystalline solar panel on the left hand side, with a yellow '£' symbol and a yellow calendar symbol on the right hand side

Should you get a solar panel subscription?

Thinking of switching to solar but feeling daunted by the upfront cost? A solar subscription could be right for you.

Photo of author Charlie ClissittCharlie Clissitt
Solar panel installer drilling into a mounting bracket on a rooftop, blue filter overlaid, black tick in a yellow box in the centre foreground

The Sunsave Guarantee: explained

Get a detailed breakdown of what the Sunsave Guarantee includes, from monitoring & maintenance to insurance.

Photo of author Charlie ClissittCharlie Clissitt
A cartoon yellow circular '£1' coin and a cartoon yellow calendar with concentric white circles around them, a black solar panel to the right of them, turquoise background

Sunsave Plus: a flexible way to go solar

Discover how you can make a full or partial early repayment to shortern the term of your solar subscription.

Photo of author Charlie ClissittCharlie Clissitt
A cartoon house with solar panels on the roof, a relocations van to the right, a yellow question mark above it, turquoise background

Moving home with a Sunsave Plus subscription

Find out about your various options if you ever decide to move home during your solar subscription.

Photo of author Charlie ClissittCharlie Clissitt
A cartoon house with yellow solar panels on the roof, a big £1 coin above it going into a slot, and the words 'Sunsave Plus', turquoise background

Sunsave Plus: what if you can afford the upfront cost of solar?

We explore the potential long-term financial outcome of opting for Sunsave Plus.

Photo of author Charlie ClissittCharlie Clissitt
Close up shot of solar panels on a rooftop, a white line down the middle. The left side has faded colours, but the right side is bright and colourful

Why Sunsave Plus does not require a roof lease

We run through why Sunsave Plus has been designed differently so that a roof lease is not required, and why this matters

Photo of author Charlie ClissittCharlie Clissitt
A screenshot of a Sunsave Plus proposal in the bottom right, surrounded by a yellow sun and a turquoise background. Cartoon yellow book to the left

A guide to your Sunsave Plus proposal

Explore our detailed breakdown of the Sunsave Plus proposal, so you can understand every section in detail.

Photo of author Charlie ClissittCharlie Clissitt
Two men putting new tiles on a rooftop, yellow filter overlaid, big cartoon yellow sun in the foreground

Making changes to your roof during a Sunsave Plus subscription

Find out whether roof upgrades will affect your solar subscription, and how we can help.

Photo of author Charlie ClissittCharlie Clissitt

How solar works

Read all
The sun rising behind an array of polycrystalline solar panels

How do solar panels work?

Most people are familiar with the fact that solar panels generate electricity, but far fewer people know quite how they do it.

Photo of author Joanna HunterJoanna Hunter
A black monocrystalline solar panel with a yellow bar chart in the foreground, a cartoon yellow sun in the background

How efficient are solar panels?

What's the average efficiency of a solar panel, and how does it compare to other sources of renewable electricity?

Photo of author Melody AbeniMelody Abeni
Snow on a rooftop solar panel system, yellow cartoon snowflakes in the background

Do solar panels work in winter?

As solar panels need daylight rather than heat, they can still generate electricity during the frosty season.

Photo of author Melody AbeniMelody Abeni
A solar panel with light reflecting off it, a carton yellow lightning bolt, and a turquoise background

How much energy do solar panels produce?

Discover the average annual output of a solar panel system in the UK, as well as what factors affect it.

Photo of author Charlie ClissittCharlie Clissitt
On the right, a child watching as an adult inserts an electric vehicle charger into a car, with stairs and a door in the background. On the left, a yellow and black graphic of a solar panel against an aquamarine background

How to charge your electric car with solar panels

Here's how solar works with EV charging, how many panels you need, and rough costs.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A faded blue solar on the left, a black solar panel in the centre, and a yellow question mark with black outline on the right. They're all under a black horizontal line with yellow dots above the icons, and against an aquamarine background

How quickly are solar panels improving?

Discover how far solar panels have come in terms of power, efficiency and durability - and what the future holds.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar panel costs

Read all
A column of cartoon yellow solar panels on the left and some cartoon yellow money on the right, against a turquoise background

How much do solar panels cost in the UK?

Here’s how much solar panels cost, the factors that influence this price, and what to do if the upfront cost is too high.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A yellow map of the UK on the right, and a cartoon £1 coin going into a coin slot on the left, turquoise background

The 8 best solar panel grants & funding options

Discover the range of financial assistance on offer from the UK government and elsewhere for people switching to solar.

Photo of author Melody AbeniMelody Abeni
Three yellow cartoon solar panels in a column on the right hand side, a cartoon yellow % symbol on the left

VAT on solar panels: the expert guide

Learn about the UK's temporary VAT reduction on solar panels, how long it lasts for, and any exceptions.

Photo of author Melody AbeniMelody Abeni
A black solar panel with a cartoon blank yellow price tag on it, and a big yellow question mark to the right hand side

Cheap solar panels: are they worth the risk?

Get the lowdown on whether it's worth buying lower quality solar panels in order to save some money.

Photo of author Tom GillTom Gill
Two solar panel installers carrying a black solar panel, yellow and turquoise background, a yellow question mark in the centre

Solar panel quotes: 7 questions to ask before installing solar

Here are the sensible questions to ask before going ahead with an installation.

Photo of author Melody AbeniMelody Abeni
A house with a dark roof that's almost completely covered in solar panels, against the background of a sunset, with a graphic representation of a yellow-and-black pound coin going in a slot, by an aquamarine strip on the side of the image

Are solar panels worth it in the UK?

Here's how much you can save with solar panels, their average break-even point, and all the factors that affect these numbers.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A row of three cartoon houses with solar panels on the roof and a storage battery, turquoise background

Solar Together: is it worth it?

We run through exactly how Solar Together works, its key benefits and drawbacks, and some of its main successes and failures.

Photo of author Melody AbeniMelody Abeni
A black monocrystalline solar panel with a white arrow behind it and pound symbol next to it

Do solar panels increase the value of your home?

Learn about how solar panels affect property prices around the UK, and why they're so popular with homebuyers.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar panel installation

Read all
People installing a solar panel on a roof, with a cartoon screwdriver and spanner in the foreground

How are solar panels installed?

Here's how a solar panel installation works from start to finish, and what you should do before and after the installation.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
Black solar panels on a rooftop, turquoise background and a cartoon yellow solar inverter in the centre foreground

The expert guide to solar panel inverters

Find out what inverters are, why they matter, and what the difference is between string inverters and microinverters.

Photo of author Sophie LewisSophie Lewis
Lots of black mono crystalline solar panels with a yellow question mark in front

How many solar panels do you need?

Read up on how many solar panels the typical property requires, as well as the factors that can affect this.

Photo of author Tom GillTom Gill
Black solar panel with yellow highlight, the letters 'MCS' in the middle in yellow

The MCS certificate for solar panels

Learn why the Microgeneration Certification Scheme (MCS) is so important to your solar panel installation.

Photo of author Melody AbeniMelody Abeni
'4kW' in yellow, outlined in black, over an image of a black solar panel, against a blue background

4kW solar panel systems: an expert guide

In this guide, we’ll explain what a 4kW solar panel system is, how much it costs, and how many devices it can power.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
'5kW' in yellow, outlined in black, over an image of a black solar panel, against an aquamarine background

5kW solar panel systems: an expert guide

Here's what a 5kW solar panel system is, how much it costs, and which devices it can power on an average day.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
Cartoon sun shining down on a house with solar panels, turquoise background.

The best angle and direction for solar panels in the UK

Learn about the optimum set up for rooftop solar panels in the UK to ensure the highest output.

Photo of author Melody AbeniMelody Abeni

Exporting to the grid

Read all
Monocrystalline solar panel array on UK rooftop, yellow £ symbol in the centre and an electricity pylon in the background

The Smart Export Guarantee: explained

Learn about how you can earn money with solar via the Smart Export Guarantee, and other export tariffs.

Photo of author Melody AbeniMelody Abeni
Five yellow rectangles in the style of a bar chart on the left of the image, with a yellow pound sign on the right, set against a blue-yellow background with an electricity pylon

What are the best SEG rates?

Here are the best export tariffs you can use to earn money from the excess solar electricity you send to the grid.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A blue polycrystalline solar panel with the yellow letters 'FiT' next to it, and an electricity pylon in the background

What was the Feed-In Tariff and why did it end?

Discover the history of the UK's solar Feed-in Tariff between 2010 and 2019 - and learn about its replacement.

Photo of author Melody AbeniMelody Abeni
A small cartoon yellow solar panel, a small carton pylon, and a small cartoon pile of money, turquoise background

Solar export tariffs: what are they and how do you sign up?

How to sign up for a solar export tariff, and how much you can expect to earn.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A smart meter next to a black solar panel, a cartoon yellow sun behind it, turquoise background

Do smart meters and solar panels work together?

Understand how smart meters and solar panels combine to reduce your energy bills.

Photo of author Melody AbeniMelody Abeni
a black solar panel on the left, a graphic of a yellow coin with a pound symbol in the middle, going into a black slot, and the Octopus Energy logo in the bottom-right corner, all against an aquamarine background

Intelligent Octopus Flux: explained

Here's how the tariff works with your solar installation, how much it can earn you, and when it’s the best choice for your home.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar batteries

Read all
A cartoon yellow question mark on top of a large white storage battery, faded white concentric circles around it and a turquoise background

Battery storage for solar panels: is it worth it?

Here's how solar battery storage works, how to pick the best type and size for your home, and how much it can save you.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A black solar panel in the corner with a yellow outline, three cartoon solar batteries in the centre (of varying sizes)

What size solar battery do you need?

Planning on adding solar storage to your home? Learn about the right size solar battery for your property.

Photo of author Charlie ClissittCharlie Clissitt
A graphic representation of a battery in yellow with a black outline on the left, and a yellow clock with black outline and hands, both against an aquamarine background.

How long do solar batteries last?

Before you go solar, find out how long your battery will last. Here's the average lifespan, the reasons behind it, and how to extend it.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A row of terraced houses in the UK, a yellow filter on top, and a cartoon yellow storage battery in the centre

Home battery storage without solar in the UK

Discover the pros and cons of battery storage without solar panels at home, and why it's better to go solar.

Photo of author Melody AbeniMelody Abeni
A graphic of a battery in yellow, outlined in black, against an aquamarine background with a large, light-blue question mark on the right and pound sign on the left

How much do solar batteries cost?

Here's how much solar batteries cost, what affects the price, and whether they're worth the investment.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar maintenance

Read all
A black mono crystalline solar panel, turquoise background, and a tool box with a spanner symbol on it

Solar panel maintenance: explained

Find out what's involved in solar panel maintenance, how often it needs to happen, and how much it costs.

Photo of author Joanna HunterJoanna Hunter
Part of a black solar panel with yellow squiggly lines around it, cartoon spanner and screwdriver next to it, turquoise background

6 problems to watch out for if you have solar panels

Understand the potential pitfalls that face solar panel owners and what the solution is to all of them

Photo of author Melody AbeniMelody Abeni
Black solar panel array on a UK rooftop, cartoon black bird in a yellow box hovering above it, turquoise background

Solar panel bird proofing: an expert guide

Discover the typical problems birds can cause when they nest under solar panels, and how you can prevent them.

Photo of author Melody AbeniMelody Abeni
A tiled background of black solar panels with a cartoon yellow calendar in the centre foreground

How long do solar panels last?

Discover how long solar panels typically last, and how quickly solar panel performance degrades over time.

Photo of author Melody AbeniMelody Abeni

Planning permission

Read all
Installers putting a solar panel on a roof against a yellow background, with a cartoon yellow piece of paper in the bottom left corner

Planning permission for solar panels: an expert guide

Find out which solar installations need planning permission in the UK.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
Lots of cartoon yellow solar panels in the background, a light blue question mark in the centre foreground

Is there a maximum number of solar panels allowed in the UK?

Find out whether there is any limit on the number of solar panels you can have on your rooftop.

Photo of author Melody AbeniMelody Abeni
A yellow page with a black outline in the centre, G99 below that, a black solar panel on the left outlined in yellow, and a hand writing with a pen on the right

DNO solar applications: the expert guide

Here's how the G99 application works, why it exists, how long the process usually takes, and how to get one approved.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A row of cottages in the UK, a blue filter over the top, and a cartoon yellow solar panel to the right hand side

Solar panels in conservation areas: the expert guide

Learn about the specific rules that apply to solar panels in conservation areas.

Photo of author Melody AbeniMelody Abeni
A graphic. In the centre is a yellow book outlined in black, with black rectangles down the sides in columns, against an aquamarine background with a yellow sun

Building regulations for solar panels: explained

Here are the building regulations for solar panels, how they differ from planning permission, and how to comply with them.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar technology

Read all
A monocrystalline solar panel next to a polycrystalline solar panel with a yellow question mark in the middle

The 6 different types of solar panels

Discover the six main types of solar panel, including monocrystalline, polycrystalline, and thin-film.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
Black solar panels on a rooftop, a cartoon yellow sun rising behind it, turquoise background

Why are black solar panels better than blue?

Learn about the differences between black solar panels and blue solar panels - and why black should be the one you choose.

Photo of author Melody AbeniMelody Abeni
A hand holding up a small perovskite solar cell, with a cartoon yellow information booklet to the right of the hand

Perovskite solar panels: an expert guide

Find out about the main benefits and drawbacks of perovskite solar panels, and why they're not available yet

Photo of author Melody AbeniMelody Abeni
A person's hand with red fingernails adjusting a smart thermostat, with the head blurry on the right of the image. Below, there's a graphic of a solar panel with a dotted line travelling to a heat pump

Can solar panels heat a house in the UK?

Solar panels can heat a home in various ways. Here are their pros, their cons, and which methods are best for you.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A heat pump and solar panels on a grey roof under a sun and an aquamarine sky

Heat pumps and solar panels: the expert guide

Here's how using a heat pump with solar panels works, how many panels you’ll need, and which homes are suitable.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Cities and regions

Read all
A graphic of the UK in yellow, outlined in black, next to a graphic of a solar panel in yellow, outlined in black, against an aquamarine background

How many homes have solar panels in the UK?

Here's how many homes have solar panels in the UK, which areas have the most, and how the UK compares with Europe.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
Yellow cartoon map of the UK with solar panel icons dotted around it, turquoise background

The 11 sunniest places in the UK

Check out the latest Met Office data and discover the UK's top 11 sunniest spots - places that are perfect for solar panels.

Photo of author Joanna HunterJoanna Hunter
A graphic that has a map of the United Kingdom with concentric circles originating from Hampshire on the right, and a photo of a black solar panel on the right. The country is yellow and outlined in black, and the sea is blue

Solar panels in Hampshire: are they worth it?

Here's how much you can save by getting solar panels in Hampshire, and how much they'll cost.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A graphic that has a map of the United Kingdom with concentric circles originating from Essex on the right, and a photo of a black solar panel on the right. The country is yellow and outlined in black, and the sea is blue

Solar panels in Essex: are they worth it?

Here's how much you can save by getting solar panels in Essex, as well as costs, grants, and how well solar works in Essex weather.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A graphic that has a cut-off map of the United Kingdom with concentric circles originating from Cornwall on the right, and a photo of a black solar panel on the right, outlined in yellow. The UK is yellow and outlined in black, and the background of the image is a photo of a Cornwall coastline

Solar panels in Cornwall: are they worth it?

Here's how much you can save by getting solar panels in Cornwall, as well as costs, grants, and how well solar works in this weather.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A graphic that has a cut-off map of the United Kingdom with concentric circles originating from Bristol on the left, and a photo of a black solar panel on the right. The UK is yellow and outlined in black, and the background of the image is a photo of Bristol's Clifton Suspension Bridge with hot air balloons floating around it

Solar panels in Bristol: are they worth it?

Here's how much you can save by going solar in Bristol, as well as the costs, grants, and how well solar works in Bristol's weather.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A graphic that has a map of the United Kingdom with concentric circles originating from Dorset on the right, and a photo of a black solar panel on the left. The UK is yellow and outlined in black, and the background of the image is a photo of a Dorset beach

Solar panels in Dorset: are they worth it?

Here's how much you can save with solar panels in Dorset, plus the costs, grants, and how well solar works in Dorset weather.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Solar energy

Read all
Solar panels on a rooftop, with other solar panels floating around it

17 facts about solar panels

Solar energy is now the cheapest source of electricity in history, thanks to costs falling a whopping 70% in the last 10 years.

Photo of author Melody AbeniMelody Abeni
A polycrystalline solar panel with a thumbs up and a thumbs down either side of it

The pros and cons of solar panels

Learn about the many upsides and (not many) downsides of switching to solar, including typical savings.

Photo of author Sophie LewisSophie Lewis
Aquamarine bars in the style of a bar chart at the bottom, in the middle of a yellow semi-circle in the style of a rising sun, under a yellow '19' outlined in black, with the background in blue, in the style of a sky

The top 19 solar energy statistics

Here’s the state of the solar industry, through all the most important solar energy statistics for the UK and the world.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman
A cartoon yellow planet Earth in the centre foreground, a big blue number 7 behind it, and a solar panel behind that. Turquoise background

The 7 largest solar panel manufacturers in the world

Discover which companies are producing the highest number of solar panels around the world

Photo of author Melody AbeniMelody Abeni
A cartoon globe with yellow countries, a black solar panel next to it, and a turquoise background

Which countries use the most solar energy?

Our rundown of the countries around the world using the most solar energy, from Mexico to China

Photo of author Melody AbeniMelody Abeni
A yellow graphic of a map of the UK, outlined in black, set against a bird's-eye view of solar panels lined up on grass, coloured in aquamarine

The 7 largest solar farms in the UK

Solar farms have exploded in popularity in recent years to meet an increasing demand for electricity. Here are the biggest.

Photo of solar panel writer Josh Jackman against blank backgroundJosh Jackman

Copyright © 2024 Sunsave

Sunsave Group Limited (company number: 13741813) and its affiliates, Sunsave UK Limited (company number: 13941186) and Sunsave Energy Limited (company number: 13952135), together trading as “Sunsave”, provide renewable energy systems and finance and are registered at 23 Ansdell Terrace, London, W8 5BY. Sunsave Energy Limited (FRN: 979494) is a lender authorised and regulated by the Financial Conduct Authority. Sunsave UK Limited (FRN: 977566) acts as a credit broker and can introduce you to a panel of lenders for the purpose of arranging finance. Sunsave UK Limited is an appointed representative of Product Partnerships Limited (FRN: 626349) which is authorised and regulated by the Financial Conduct Authority and registered at Suite D2 Josephs Well, Hanover Walk, Leeds, LS3 1AB.