Solar power is becoming an increasingly popular way for UK homeowners to generate their own electricity, reduce their reliance on the grid and make better use of renewable energy. But once you’ve decided to invest in solar, there’s another important question to answer: Should you install the solar panel system yourself or use a professional installer?
For confident DIY enthusiasts, a DIY solar panel kit can offer a practical and potentially more affordable way to start generating renewable energy. However, solar panel installations involve electrical equipment, roof work and potentially grid connections, so it’s important to understand where DIY installation is appropriate and when professional expertise is the safer choice.
In this guide, we’ll compare DIY solar panels with professional installation and explain what to consider before deciding which option is right for your home.
What Is a DIY Solar Panel Kit?
A DIY solar panel kit is designed to bring together the main components required to create a solar power system, rather than requiring you to source every individual component separately.
Depending on the type of system, a kit may include solar panels, mounting equipment, cables, connectors, a solar inverter or charge controller, and battery storage where applicable. The exact contents will vary depending on the system and its intended application.
One of the main benefits of buying a solar panel kit is that the components are designed to work together. This can make planning your project considerably simpler compared with researching and purchasing every component independently.
DIY solar panel kits can be particularly useful for smaller projects such as outbuildings, workshops, garages, garden offices and other applications where a full professional installation may not be necessary.
Who Can Safely Install a DIY Solar Panel System?
The answer depends largely on the size and complexity of the system.
Someone with good practical skills and experience working with electrical equipment may be comfortable assembling certain DIY solar panel systems. However, being confident with DIY does not automatically mean that you’re qualified to undertake every part of a solar installation.
There is an important distinction between assembling equipment and carrying out electrical work that connects a system to your home’s existing electrical installation or the electricity network.
If you’re considering a DIY solar panel project, carefully check the manufacturer’s installation instructions and understand which parts you can safely complete yourself. For more complex electrical work, it’s sensible to use a suitably qualified electrician.
Working at height is another consideration. Installing solar panels on a roof can involve ladders, scaffolding and potentially difficult working conditions. If you aren’t experienced with roof work or appropriate fall protection, professional installation may be the better option.
DIY Solar vs Professional Installation: Cost
One of the biggest attractions of a DIY solar panel kit is the potential to reduce installation costs.
With a professional installation costing at least £4000, you’re paying not only for the solar equipment but also for labour, system design, installation, testing and other associated services. Completing suitable parts of the project yourself can therefore reduce the overall cost.
However, the cheapest option isn’t necessarily the best option.
Professional installation can provide valuable reassurance that the system has been correctly designed, installed and tested. It can also be particularly important for larger domestic systems involving complex wiring, battery storage or connection to the home’s electrical installation.
A DIY approach can make financial sense when you have the necessary skills and the project is relatively straightforward. Before making a decision, compare the total cost of equipment, tools, safety equipment and any professional electrical work that may still be required.
UK Regulations and Safety Considerations
Solar power installations in the UK need to be approached with safety and compliance in mind. Planning permission and building regulations are separate considerations, and the requirements can vary depending on your property and the type of installation.
In England, some domestic solar installations can benefit from permitted development rights, provided the relevant conditions and limitations are met. Properties in certain designated areas or with particular characteristics may be subject to additional restrictions, so it’s important to check the rules applying to your property before starting work.
Building regulations can also apply to electrical and structural work. GOV.UK recommends checking whether approval is required for your particular project and notes that building regulations are separate from planning permission.
For systems connected to the national grid, there are also requirements relating to the local Distribution Network Operator (DNO). Depending on the system and its generating capacity, different notification or approval procedures may apply.
These requirements are one reason why larger grid-connected domestic solar installations are often better suited to professional installation.
If you’re unsure about the requirements for your project, check with your local authority, DNO and a suitably qualified electrical professional before proceeding.
Common DIY Solar Installation Mistakes to Avoid
Even relatively straightforward solar projects require careful planning. Some common mistakes include:
Choosing the Wrong System Size
Installing too few panels or insufficient battery storage can mean the system doesn’t produce enough usable electricity. Work out your expected energy requirements before purchasing equipment.
Ignoring Shading
Trees, chimneys and neighbouring buildings can cast shadows over solar panels and reduce their output. Consider the position of the panels carefully before installation.
Poor Cable Management
Solar systems use electrical cables that need to be correctly sized, routed and protected. Poorly installed cables can reduce efficiency and create safety risks.
Forgetting About Battery Storage
If you’re installing a system designed to provide power when the sun isn’t shining, battery capacity is an important consideration. A system that generates plenty of electricity during the day may still struggle if there’s insufficient storage for evening and overnight use.
Underestimating Roof Work
Solar panels can be heavy and need to be securely mounted. Poor installation can damage the roof or create safety issues, particularly during periods of strong wind.
Treating a DIY Kit as Completely Plug-and-Play
A kit simplifies the process, but it doesn’t remove the need for proper planning, safe installation and compliance with applicable requirements.
When Should You Choose Professional Installation?
A professional installer is generally the better option when your project is large, complex or involves significant electrical work.
You may want to consider professional installation if:
- You’re installing a large rooftop solar array.
- The system will connect to your home’s existing electrical installation.
- You’re adding substantial battery storage.
- Your property has a complicated roof.
- You need work carried out at a significant height.
- You’re unsure about electrical safety.
- You need help with grid connection requirements.
- You want the reassurance of a professionally designed and tested system.
There’s nothing wrong with taking a hybrid approach, either. You may be able to purchase your own equipment and complete suitable preparation work while leaving specialist electrical connections or other technical elements to a qualified professional.
How ABC Renewables Can Simplify Your DIY Solar Project
For homeowners who want to take a more hands-on approach, choosing the right equipment is an important first step.
ABC Renewables supplies DIY solar power kits designed to make renewable energy projects more straightforward. Instead of having to research every component individually, a suitable kit can provide a convenient starting point for your project.
Whether you’re looking to power an outbuilding, workshop, garden office, leisure space or another application, choosing compatible equipment can make planning your system easier.
ABC Renewables also offers a range of renewable energy products to complement DIY projects, giving customers the flexibility to create a solution suited to their individual requirements.
The key is to choose a system based on your actual electricity requirements, available installation space and intended use rather than simply selecting the largest or cheapest kit available.
Is DIY Solar Right for You?
Ultimately, the choice between DIY and professional solar installation comes down to your skills, the type of property you have and the complexity of the system you’re planning.
A DIY solar panel kit can be an excellent option for confident homeowners who want to take control of a smaller renewable energy project and potentially reduce installation costs. However, more complex systems – particularly those involving rooftop work, significant electrical connections or grid integration, can benefit from professional expertise.
Whichever route you choose, careful planning is essential. Make sure you understand your energy requirements, select compatible equipment and check the relevant UK planning, building and electrical requirements before starting work.
If you’re ready to explore the possibilities of DIY solar power, take a look at the range of DIY solar panel kits from ABC Renewables and find a solution that suits your project. With full DIY plug-in solar power kits starting from £299, ABC can start your modular energy independence!