Get up to 4 quotes by filling in only 1 quick form
Compare quotes and find yourself the best deal
Increase the value of your home by installing solar panels
Solar Panel Sizes, Dimensions, and Wattages: UK Guide 2024
- Solar panel size indicates the amount of energy that is produced by your system, while solar panel dimensions indicate the physical size of the solar panel.
- The average 350W solar panel has the dimensions of 190cm x 100cm x 4cm.
- On average, domestic solar panels weigh somewhere between 18 and 21kg.
To be able to choose the right solar system for your home, you will need to know more about solar panel sizes, dimensions, and wattages. In this guide, we walk you through these key features to give you a better idea of the technical specifications of solar panels.
However, the surest way to make sure that you opt for the solar panel size that best suits your energy needs is to consult a solar expert who can offer you tailored advice. Finding a professional you can trust on your own can be extremely difficult. Instead of spending hours on tedious research, let us help you get the process started in just 30 seconds.
Simply fill in our short form to request free, non-binding quotes from up to 4 local solar panel installers. By comparing the quotes you receive, you can decide which solar expert you want to work with and find the best deal on your new solar panel installation. Simply click below to get started today!
- Quotes from local installers
- Payment by finance available
- Save up to £660 per year
Introduction to solar panel sizes, dimensions, and wattages
You might think that size and dimension are synonymous when talking about solar panels. However, these specifications actually mean different things.
Solar panel size refers to the power output of your solar panels. This is measured in Watts (W) and is calculated by multiplying the panel voltage by the amperage. So, when you are asking yourself: “What size solar system do I need?” you will find your answer by checking the wattage of solar panels.
Solar panel dimensions showcase the physical size of the solar panel. Dimensions are measured in metres (m), centimetres (cm), or millimetres (mm). Solar panel dimensions indicate the length, width, and thickness of the panels, giving you a better indication of how much space they will take up on your roof.
Solar panel sizes in the UK: Most common PV panel sizes
Currently, some of the most common solar panel sizes in the UK are 350W and 450W solar panels. In terms of solar system sizes, the most common ones for domestic use are 3kW, 4kW, or 6kW solar panel systems. Also, larger households will benefit from 12kW solar panels which cater to a higher energy demand.
Below, you can find an overview of the different solar panel sizes and systems to get an idea of which options would be suitable for different house sizes.
| House Size | Average Yearly Energy Consumption | System Size | Number of Solar Panels |
|---|---|---|---|
| 1-2 bedrooms | 1,800kWh | 3kW | 8 |
| 2-3 bedrooms | 2,700kWh | 4kW | 10 |
| 4-5 bedrooms | 4,100kWh | 6kW | 16 |
| House Size | Average Yearly Energy Consumption | System Size | Number of Solar Panels |
|---|---|---|---|
| 1-2 bedrooms | 1,800kWh | 3kW | 6 |
| 2-3 bedrooms | 2,700kWh | 4kW | 8 |
| 4-5 bedrooms | 4,100kWh | 6kW | 13 |
Solar panel size chart
Solar panel size is a crucial factor to consider, as it is the element that ensures that your energy needs are met by your solar system. Solar panel sizes like 350W or 450W can generally easily tend to the electricity consumption requirements of small to large households. However, you will want to keep in mind that the larger the solar panel size, the lower the number of solar panels your installation will require.
At the same time, knowing more about solar panel and system sizes is important if you want to have a better idea of how much you will spend on your new installation. Today, how much solar panels cost in the UK ranges anywhere from £5,000 to £13,000, depending on the system size you require.
As you can see, installing solar panels is quite expensive. That is why it is worth checking whether you are eligible for any solar panel grants in the UK to lessen the financial burden of investing in solar technology.
Solar panel dimensions in the UK: Millimetres, centimetres, and metres
The dimensions of an average residential solar panel in the UK are 190cm x 100cm x 4cm. In millimetres, this translates to 1,900mm x 1,000mm x 40mm, while in metres solar panels are 1.9m x 1m x 0.04m.
These calculations refer to the length, width, and thickness of the solar panel. It is important to be aware of these measurements because they will inform you how much space a certain number of solar panels will take up on your roof.
| Solar Panel Size | Length of Solar Panels | Width of Solar Panels | Thickness of Solar Panels |
|---|---|---|---|
| 350W | 190cm | 100cm | 4cm |
| 450W | 190cm | 100cm | 4cm |
| 600W (for commercial use) | 195cm | 100cm | 3.8cm |
With these dimensions in mind and based on the solar panel system size you require, your solar panels will take up more or less space on your roof. As an estimate, a 3kW solar panel system in the UK will require about 16m2 of roof space. A 4kW system will take up around 20m2, while a 6kW one will need somewhere around 32m2.
How much power in Watts can solar panels produce per day, week, and month?
Solar panels can generate between 120W and 500W in a day. The amount of electricity that your solar panels generate will depend heavily on the size of your solar panels and the size of your system.
- Per day: 120W – 300W
- Per week: 840W – 2,100W
- Per month: 3,600W – 9,000W
- Per day: 200W – 500W
- Per week: 1,400W – 3,500W
- Per month: 6,000W – 15,000W
Many solar panel calculations assume that they are operating efficiently. This can depend on sunlight hours, clear access to light, and their angle. To get the most out of solar panels, make sure you have no shade in the area around them and have 4 to 5 hours of sunlight. They must also be at a 30 to 50-degree angle and facing South, which is the best direction for solar panels in the UK.
No clue what size solar panels would best suit your energy needs? Then you will want to consult a solar expert. Instead of wasting hours trying to find a professional you can trust on your own, let us help you get the process started in just 30 seconds.
Simply answer a few short questions, and sit back and wait while up to 4 local solar panel installers reach out to you with quotes for a new solar panel installation. You can then choose which professional you want to consult and find the best deal for your home. All quotes are free and come with no obligation to commit to an installer. You can get started by clicking below.
- Quotes from local installers
- Payment by finance available
- Save up to £660 per year
How heavy are solar panels in the UK?
Generally, solar panels for domestic use weigh somewhere between 18 and 21kg. Solar panels for commercial use are heavier, weighing around 22-30kg.
What this means for you is that you will want to make sure that your roof can accommodate the weight of your solar panels. Most rooftops in the UK can hold a load of 140kg per square metre. Solar panels weigh far less, somewhere around 20kg per square metre.
Thankfully, this means that your roof can most likely easily support your new solar panel installation. However, you will want to have a solar panel installer assess the integrity and structure of your roof to ensure that your new system is safe to install.
Find solar panel installers for your UK household
Want to know more about solar panel sizes, dimensions, and wattages and what they mean for your home? Then you will want to consult a solar panel installer who can provide you with tailored advice.
Finding a solar expert you can trust on your own can be a pain. Not only can the process take hours or even days of research, but you might not even find what you were looking for. Thankfully, with our help, you can avoid any frustration or disappointment.
We can put you in contact with solar panel installers from our broad network of specialists operating across the country. So, whether you are looking for solar panels in Scotland or solar panels in Wales, to name but a couple of regions, one of the installers we work with can surely help you.
All you need to do to get in touch with them is fill in our 30-second form and request quotes for a solar panel installation. You will then hear back from up to 4 solar panel installers near you and pick the one you want to work with. On top of that, by comparing the quotes you receive, you will also be able to find the best deal for your new solar panels. Simply click below to get started now!
- Quotes from local installers
- Payment by finance available
- Save up to £660 per year
Frequently asked questions
Sabria is a writer committed to making even the most complex information about sustainability and energy efficiency easily accessible to homeowners looking to make greener choices. With a background in literary studies, she has a wealth of experience when it comes to academic research and writing.
- Solar Panel Sizes, Dimensions, and Wattages: UK Guide
- Introduction to solar panel sizes, dimensions, and wattages
- Solar panel sizes in the UK: Most common PV panel sizes
- Solar panel dimensions in the UK: Millimetres, centimetres, and metres
- How heavy are solar panels in the UK?
- Find solar panel installers for your UK household
- Frequently asked questions