This year, the UK government announced the rollout of plug-in solar panels across England, Scotland and Wales as an easy, quick fix to help reduce UK household’s soaring electricity bills and to accelerate the transition to 100% low-carbon energy.
Since the end of August 2026, these plug-in kits have been legal to purchase and install on suitable outdoor locations like balconies, terraces and exterior walls. But are they worth it?
Let’s take a look what this new Government scheme covers and what you need to know before getting a kit for your home.
What are plug-in solar panels?
Plug-in solar panels, sometimes referred to as balcony solar panels, are a portable, easy-to-install method to harness clean, renewable energy and reduce electricity costs. As their name suggests, they can be plugged straight into your home’s existing electricity sockets, as opposed to roof-mounted solar panels which require an electrician to install an inverter which converts solar electricity from DC to AC. This is because plug-in solar panels come with a built-in microinverter.
Plug-in solar panels represent a more affordable option for anyone interested in solar power. However, they produce significantly less electricity than larger roof-mounted systems.
From 27 August 2026, plug-in solar panel kits which are compliant with UK standards are legally available to buy for households in England, Scotland and Wales.
Can solar panels be plugged directly into the mains electricity?
Yes, plug-in solar panels can be plugged directly into a three-prong (outdoor) wall socket, which needs to be properly weatherproofed.
They must not be connected via any extension lead, timer plug or multi-way adapter.
How much electricity do plug-in solar panels generate and how much will I save?
Savings will vary from home to home, with generation heavily depending on the location, angle and number of panels of your plug-in solar system as well as sun exposure and weather conditions. Currently, plug-in kits in the UK are legally capped to stay under safety limits for home circuits (usually around 800W max inverter output).
For an 800W plug-in solar kit mounted in good conditions (i.e. south-facing , angled at 30º-35º, no shading, …), this equates to approximately 700 to 900 kWh a year. Depending on your electricity use during daytime hours, savings could be anywhere between £100-£250 per year with a payback period of around 2-3 years. For more detailed calculations, visit Plug-in solar panels – Energy Saving Trust.
Generally, plug-in solar panels will help to reduce the cost of some of your everyday ‘background’ electricity draw, such as helping to power your kettle, lighting, TV, wifi router, etc. However, unlike solar roof systems, they will not generate enough to fully power all of your large-scale electrical devices like fridges or freezers.
Plug-in solar panel kits often come with an installation guide to download a dedicated monitoring app which will help track your solar panels’ performance and kWh production in real time on your phone or tablet. You can also get a quick overview and rough estimates by using this free online ‘Solar Energy Calculator‘.
For more in-depth advice on how your home can transition to affordable, secure, low-carbon energy, you may wish to consider a BHESCo Home Energy Survey. You can submit an enquiry with this short form:
Can plug-in solar panels be installed and secured to a balcony?
UK compliant plug-in solar panel kits can be found online, are sold by renewable energy specialists and stocked in major retailers like B&Q and Argos. These plug-and-play devices come at no upfront installation cost but therefore involve self-installation and mounting. Panels can weigh up to 25kg, so deciding where to mount them and being confident in doing this yourself is crucial. The kits usually include mounting brackets, specialised hooks and instructions to follow on how they can be attached safely to balconies, exterior walls or other sturdy outdoor frames. Make sure to speak to a professional installer or qualified electrician, if you’re not sure about anything.
Only one plug-in solar system with 1-2 panels is legally allowed to be installed per home to stay under the safe 800W limit for your home’s circuit.
If you rent your home, BHESCo always recommend consulting your landlord or building manager first before purchase and installation.
What if my home doesn’t have a balcony?
Plug-in solar panels are not just mountable on balconies.
They have often been associated with balconies due to their widespread use in Spain and Germany and the German term of Balkonkraftwerke (balcony power plants).
However, plug-in solar panels can be mounted anywhere outdoors on your property (with the landlord’s or building manager’s permission) where the surface is sturdy, where an outdoor weatherproof wall socket is nearby and where the panels will get enough sunlight. Like with roof solar installations, panels work most efficiently in unshaded, south-facing areas, but still generate some electricity if they face east or west. North-facing installation is not recommended. Outdoor sockets need to be weatherproof and installed by a qualified electrician.
In addition to balconies, other outdoor spots could include exterior walls, garages, sheds, or even mounted on the ground, on your terrace or in your garden. Once, you have decided where you would like your panels to be installed, make sure you choose a UK compliant kit with the appropriate hardware and fixing (some plug-in solar panels being sold explicitly mention they are not suitable for balconies, for instance).
If you are interested in installing solar power but you’re unsure where to start, then a good first step is to request a BHESCo energy survey for your home.
Do I need to notify anyone about purchasing plug-in solar panels?
Yes.
As a homeowner, you may need planning permission or listed building consent, depending on where your property is located. If you are renting, you may also need permission from your landlord or freeholder to put panels in place, depending on how you install the panels and what your tenancy agreement says.
As tplug-in solar panel legislation is brand-new in the UK and more information and guidelines will become available, we currently recommend you always consult your landlord, freeholder or building manager first before purchasing and installing a plug-in solar panel kit.
Once you have been given permission, you will need to notify your Distribution Network Operator (DNO) within 28 days of connecting the plug-in solar panel kit by registering your kit at myplugin.solar with your postcode, the make and model.
Are plug-in solar panels covered by contents insurance?
Usually, yes.
Plug-in solar panels should be covered by your standard contents insurance as they are classified as portable equipment rather than permanent fixtures. We recommend you double check with your buildings and contents insurance company to see if you need to make any chances to your policy.
What are the cleaning and maintenance requirements for plug-in solar panels?
Maintenance of solar panels is minimal as they are designed to be exposed to the elements. However, just like with roof solar panels, occasional cleaning and regular maintenance checks can help your plug-in solar panels perform at their best. Usually, roof solar panels will need to be cleaned by a professional cleaner due to their inaccessible, dangerous location, yet a plug-in solar kit will likely have been mounted where access is easier and safer.
If you notice a build-up of dust, dirt, bird droppings or leaves, even after rainfall, you can clean the solar panels, using a soft brush or sponge to lightly wipe the surface of the panels, making sure not to use any soap that leaves residue. It is recommended to avoid cleaning the panels at a hot time of the day. Always check the operations manual of your specific plug-in solar panel beforehand and follow any maintenance and cleaning instructions.
Also make sure to regularly inspect your solar panels and plugs for any loose wiring, wear and tear, damaged parts or damp areas. Most solar panel kits will be covered by a warranty from your installer, so keep your warranty documents safe.
The Energy Savings Trust have published a year-by-year Solar panel maintenance checklist to help improve your solar panels’ performance and lifespan.
Do plug-in solar panels have a built in invester?
Yes, kits currently brought onto the market will be required to meet UK standards and will usually include the following:
* 1-2 solar panels
* Microinverter
* Mounting brackets and hooks
*Cables
*Safety, installation and operations manual
Households can only buy one plug-in solar panel kit per home/circuit.
Can plug-in solar panels be combined with a battery?
No, combining plug-in solar panels with battery storage is strictly forbidden. Currently, these setups don’t come with a battery due to UK regulations, so this means that at the moment you cannot store energy generated from your plug-in solar panels for later. Instead, any energy generated will be used for your electrical appliances there and then. In the (unlikely) case that your plug-in panels generate more than you are using in daytime hours, any excess electricity will be fed back into the local grid (so don’t worry, nothing will go to waste).
Where can I buy plug-on solar panels and how much do they cost?
Major retailers, such as Currys, B&Q, Wickes, Argos, Screwfix and Amazon have worked with the UK government on the rollout of plug-in solar where they will be available to purchase in stores and online. Plug-in solar panel systems that meet UK regulations cost from around £450.
Products must meet defined UK safety requirements and standards. You can look up your model on the ENA Connect Direct LCT Device Register. When completing your registration, you will only be able to select devices that are UK compliant and have been tested and approved for domestic use.
BHESCo recommends working with reputable retailers, avoiding third-party sellers and checking what warranty/product guarantees the panels have. As the market expands, it may be worth paying more for panels with a longer warranty.
Will plug-in solar panels improve my EPC rating?
No. Many homeowners and landlords will be keen to bump the EPC ratings up to a C before the 2030 ‘Minimum Energy Efficiency Standards‘ deadline, yet plug-in solar panels are unlikely to help with this. Firstly, due to the relatively small electricity generation of plug-in solar systems in comparison to energy efficiency improvements through home insulation and solar roof systems, the installation of the kit will not move you up a band. Secondly and more importantly, plug-in solar systems are not considered permanent fixtures. Portable, plug-in devices which can in theory be moved between homes are therefore excluded from the EPC assessment.
How long will my plug-in solar panels last?
Solar panels should usually work efficiently for at least 20-25 years, depending on your model and quality of manufacturing. Usually, solar panels’ energy generation will slowly decrease after those 25 years, i.e. gradually produce less electricity, but a total system failure is unlikely. The part of the kit which may need to be replaced first is commonly the microinverter after around 10-15 years.
We recommend choosing a UK compliant kit from a reputable seller which includes a good performance warranty and repair service. We also advise that you follow any maintenance and cleaning instructions included in your kit to improve your plug-in solar panels’ performance and lifespan.
To sum up: What key questions do I need to ask myself before purchasing and installing plug-in solar panels?
1) Do I have enough space and the appropriate location for my panels to receive direct sunlight (ideally south-facing, unshaded)?
2) Is my chosen mounting location suitable, secure and sturdy enough?
3) Is a safe, weatherproof wall socket nearby?
4) Is there a safe and tidy route for the cables?
5) If I do not own my property, do I have permission from whoever is responsible for the building (landlord, leaseholder, building manager)?
6) Have I checked if the model of the plug-in solar panel kit is UK compliant via the ENA Connect Direct LCT Device Register ?
7) Once purchased, have I completed the legal requirement of registering my kit via the UK Plug-In Solar Registration website ?
8) Have I read the product datasheet, safety manual, installation instructions and operations guide?
9) Do I feel confident in installing and mounting my plug-in solar kit by myself or do I need to book a qualified electrician?
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