Everything you need to know about installing solar panels
Solar panels are a smart investment if you want to save on your energy bills. Using solar energy is not only good for the environment, it’s also good for the EPC rating and value of your home. However, the process of installing solar panels can seem complicated. Wondering how the installation works, how to find a reliable solar panel installer and whether you can install solar panels yourself? Read on to find out what you need to know about installing solar panels.
Why choose solar panels?
Lots of people choose solar panels because of the following benefits:
- You reduce your energy bills. By generating your own electricity with solar panels, you can save hundreds of euros on your annual energy bills. Unconsumed solar energy is fed into the grid in exchange for payment from your energy supplier.
- Your home increases in value. Houses with solar panels installed often perform better on the property market. Energy-efficient living is a decisive factor for many buyers.
- You are less dependent on your energy supplier. This also means you are better protected against sudden price increases in the energy market.
- It’s good for the environment. Solar energy is a renewable energy resource. By installing solar panels, you are taking steps towards creating a more sustainable home and also contributing to a better environment.
Curious to know about the drawbacks, too? Read more about the benefits and drawbacks of solar panels.
How does the installation of solar panels work?
Thinking about having solar panels installed? The process involves a number of steps.
Get properly informed beforehand
Although you can recoup the cost of buying and installing solar panels relatively quickly, it is still a significant investment.
How much the installation will cost you and how much the panels will yield depends on several factors, including your average energy consumption and the number of panels you can install. It’s therefore a good idea to work this out carefully in advance.
Get a detailed quote
The cost of installing your solar panels depends on things like the type of solar panels you choose, the number of panels, additional materials and the installer’s installation costs. Arrange a visit from a professional installer and ask for a comprehensive quote tailored to your specific situation. The more detailed your quote, the fewer surprises there will be afterwards.
Installation of your solar panels
The installation itself usually takes between one and three days, depending on the size of the system and the complexity of your roof. The installer fits the solar panels on your roof and connects them to the inverter, which converts the generated direct current (DC) into usable alternating current (AC).
Connection and inspection
After installation, your solar panels will be connected to your electricity meter and tested. Before you can use your panels, you need to have them inspected. This is known in Belgium as an AREI inspection (AREI = General Regulations on Electrical Installations). The inspection examines whether it is safe to start using your solar panel installation. The inspection is carried out by an authorised inspector and is usually arranged through the installer of your solar panels.
Good to know: When you have solar panels installed, your home's energy performance improves. You are now generating your own electricity and contributing to the sustainability of your home. If you’re planning to sell your home, have a new EPC (Energy Performance Certificate) prepared. With a better EPC rating, you can often put your house on the market for a higher price.
Notify your grid operator
Once the installation and inspection of solar panels is complete, you need to register them with your grid operator. The grid operator will tell you which documents you need to submit to register your solar panels. This usually includes the AREI inspection report and other specifications of your installation.
The grid operator will notify your energy supplier who will then send you a feed-in contract confirming your feed-in tariff. This is the amount you will be paid for the solar energy you do not consume and feed into the grid.
Track the performance of your solar panels
Now that your solar panels have been installed, you’ll want to know how they are performing. Many installers, as well as some energy suppliers, offer monitoring systems which operate via a handy app on your smartphone. This makes it easy to track the performance of your panels.
How to choose a solar panel installer
There are lots of solar panel providers and installers on the market. You want an installer who can advise you on the best materials and methods for your specific situation and who’ll do the job professionally. But even after installation, you should be able to go to your installer with any questions you may have, as well as for advice or after-sales service.
How can you judge whether you’re choosing the right installer? These tips will help you with your choice.
Choose a certified installer
It’s natural to expect your installer to have sufficient experience in installing solar panels, but you should also check whether your installer is certified. You can then be sure you are dealing with an expert.
The Flemish government awards a ‘Certificate of Competence’ to green energy system installers who undergo training and pass an exam. The Certificate is valid for seven years. Installers holding a Certificate of Competence are also referred to as ‘RESCert’ installers.
Check out the warranties and service
As with any installation, things can go wrong – for example, a fault in the installation or a faulty panel. If that should happen, it’s important that you can rely on a watertight warranty and after-sales service.
Ask for a detailed quote
Solar panels are a major investment. You not only have to pay for the panels, but also the costs of installation and any additional materials. It is therefore only logical that you’ll want to see a clear breakdown of costs in advance. A reliable installer will usually offer you a detailed and transparent quote. That way, there won’t be any surprises afterwards.
Listen to the experience of others
If you know someone who has recently had solar panels installed, ask them about their experience. If you can’t do that, read customer reviews instead. You will then have a better idea of what to expect.
Can you install solar panels yourself?
You can install solar panels yourself, but it is quite a challenge which requires specialised skills. For example, you need knowledge of electrical systems and roofing systems. Working at height and with electricity also involve risks. If you install your panels yourself, this could also affect the warranty.
There is in other words a lot involved in installing solar panels. But it doesn’t have to be so complicated. The additional ‘Solar panels and battery’ service in KBC Mobile lets you work out the estimated yield and cost of your solar panels.
If you are interested, you can obtain a no-obligation quote from a reliable contractor from the network of our partner ‘Impact us today’. They will contact you within five business days to set up an appointment.
FAQs
A complete solar panel installation typically costs an average of 3 500 to 5 700 euros, including installation costs and excluding VAT. The exact cost of your solar panels depends on factors such as the type of installation and the number of panels, while the number of panels you install depends on your energy consumption.
A typical household consumes about 3 500 kWh of energy per year. If you install panels with a maximum power output (watt peak, Wp) of 400 Wp and want to allow for future changes such as an electric car or a heat pump, you should ideally install between 10 and 12 solar panels.
To calculate the yield of solar panels, you need to consider factors such as the power of the panels, the location of your home and the orientation of your roof.
According to official figures from the Flemish energy regulator, an average household with solar panels installed takes 36% less energy from the grid. This means that, on average, you immediately consume 36% of the electricity your solar panels produce. This can save you hundreds of euros on your annual energy bill.
Of course, you have to weigh that 36% against the amount of energy your solar panels will generate.
Solar panels generally last 25 to 30 years. Several factors can affect their lifespan:
- The quality of the panels
- Correct and professional installation
- Regular maintenance
- Environmental factors, such as areas with a lot of snow or very warm temperatures
The price of solar panels may have come down, but they are still a major expense. At KBC, you can apply for an energy loan and pay a lower rate than you would for our other loans. Find out more. Remember, borrowing money also costs money.
The KBC Energy Loan is an instalment loan. Lender: KBC Bank NV, Havenlaan 2, 1080 Brussels, VAT BE 0462.920.226, RLP Brussels, FSMA 026256 A. Subject to your loan application being approved by KBC Bank NV.