Services
One team, from the first roof survey to the final inspection
We design, install and commission every system ourselves. Choose one building block or combine all three — they are designed to work together.
- Panel warranty
- Up to 25 years
- Certification
- RESCERT 4508
Solar panels
Designed panel by panel for your roof and your consumption
A solar installation is only as good as its design. We study your roof's orientation, pitch and shading, look at your consumption over a full year and draw a layout that produces the most useful energy — not just the most panels.
We install high-efficiency monocrystalline panels on certified mounting systems, with optimisers where shade requires them. Every installation is inspected according to the Belgian electrical code (AREI/RGIE) and registered with your grid operator.
- Free site visit and panel-by-panel roof design
- Full-black or standard panels, on tiles, slate or flat roofs
- Optimisers or micro-inverters for shaded roofs
- Electrical inspection and grid registration included
- Production monitoring in a mobile app
Solar panels · Equipment
The equipment we install
Choosing the right solar panels, inverter and brand can be overwhelming. At DELEX, we have already researched the market for you by attending industry fairs, analysing technical data and customer feedback, testing different products and installing them in our own homes.
Every solution we offer is carefully selected for its quality, reliability, compatibility and price. We only recommend systems we genuinely believe in and are convinced that our product combinations offer an excellent price-to-quality ratio.
7 parts
What does a photovoltaic system consist of?
A complete photovoltaic system is much more than just solar panels. Each component has a specific role and must work seamlessly with the others.
The quality of a photovoltaic system depends not only on the individual products, but also on how well all its components are selected, combined, configured and installed.
Get a free price simulationSolar panels
Capture sunlight and convert it into direct-current electricity.
Inverter
Converts the electricity generated by the panels into alternating current that can be used by your home or business. It is the central component of the installation.
Power optimisersOptional
Can be installed on individual panels to reduce production losses caused by shading, different roof orientations or differences between panels.
Monitoring application and Energy Management System
A mobile and web application allows you to monitor your solar production, consumption, battery level and grid exchanges. Depending on the system, the integrated Energy Management System, or EMS, can also optimise when the battery charges or discharges, manage dynamic electricity tariffs and increase your self-consumption.
Smart power meterOptional
Measures the electricity imported from and exported to the grid. It is generally required when a battery is installed, allowing the inverter and EMS to manage energy flows accurately.
Home batteryOptional
Stores surplus solar energy so that it can be used later, for example in the evening, at night or when solar production is low.
Backup systemOptional
Keeps selected electrical circuits powered during a grid outage. Depending on the chosen equipment, it can supply essential appliances or, in some cases, a larger part of the building.
High-efficiency solar panels
We select solar panels from established manufacturers with a proven track record and clearly documented warranties.
Our selection considers efficiency, long-term degradation, technology, appearance, dimensions, warranty conditions and overall value for money. Depending on the project, we may recommend different panel technologies, sizes or power classes.
The objective is not simply to install the panel with the highest wattage, but to choose the panel that delivers the best result for your specific roof. A 500 W panel may look more impressive on paper, but it can also be larger, more expensive and more difficult to install, meaning fewer panels may fit on the available surface.
What matters is the complete system design: power per square metre, expected annual production, roof layout, shading and installation cost. We therefore select the panel that offers the best overall performance for your property, not simply the biggest number on the datasheet.
- High-efficiency ABC technology
- Low long-term degradation
- Durable construction and documented warranties
- Selected according to the roof and project requirements
Hybrid inverters, carefully selected
We work exclusively with hybrid inverters, so a compatible battery can be added later without replacing the inverter.
Every model we propose has been thoroughly evaluated — not only for its specifications, but also for its reliability, compatibility, software, technical support and real-world performance. We examine every detail before trusting an inverter in a client's installation.
- Selected according to your grid connection and system size
- Single-phase solutions for smaller installations
- Three-phase solutions for larger projects, where compatible
- Mainly low-voltage battery systems for flexibility, safety and excellent value
- Free, integrated Energy Management System
- Simple mobile and web monitoring
- Optional backup power
- Up to 200% solar oversizing on selected configurations
- Reliable products with responsive technical support
- Personal assistance with the application and EMS after installation
Power optimisers
Power optimisers are not automatically necessary on every solar panel. We recommend them selectively when shading, different orientations or other roof conditions could meaningfully affect production.
This approach avoids unnecessary equipment and additional costs while improving performance exactly where optimisation provides a real benefit.
- Recommended only where technically justified
- Reduces losses caused by shade or panel mismatch
- Allows more flexible roof layouts
- Helps maximise the usable roof surface
Smart energy measurement — when required
A smart power meter measures the exchange of electricity between the building and the public grid. It provides the information required by compatible batteries, energy-management systems, export-control functions and certain smart charging solutions.
We include this component only when it is required by the selected configuration.
Key points
- Measures grid import and export in real time
- Supports intelligent battery control by the EMS
- Helps increase solar self-consumption
- MID-certified measurement
- Compatible with 3 × 230 V and 3 × 400 V electrical networks
- Included only when technically necessary
The app: monitoring and intelligent energy management
The selected system includes a mobile or web platform that allows you to monitor solar production and system performance.
Depending on the proposed configuration, the platform may also display household consumption, battery status and grid exchanges. Compatible systems can include an Energy Management System that automatically optimises energy flows according to consumption, solar production, battery status and electricity tariffs.
Key points
- Monitoring from smartphone, tablet or computer
- Solar production and system-status overview
- Battery and consumption monitoring when supported
- Remote diagnostics and technical assistance
- Dynamic-tariff optimisation on compatible systems
Smart solar surplus control
Use more of your own solar energy instead of sending the surplus back to the grid. This optional paid solution monitors the available photovoltaic surplus and automatically redirects it toward heating water or controlling indoor temperature.
Both options are additional paid solutions and are not included in the standard inverter Energy Management System.
Option 1
Smart electric boiler control
The controller continuously adjusts the boiler's power according to the available solar surplus. Unlike a simple on/off system, it can regulate the heating power proportionally, helping to avoid unnecessary electricity consumption from the grid.
- Proportional control based on available solar power
- Automatic operation without daily intervention
- Mobile monitoring and remote control
- Integrated safety monitoring
- Turns surplus electricity into stored hot water
Option 2
Smart air-conditioning control
The system automatically manages a compatible Wi-Fi air-conditioning unit according to the available solar surplus and the desired indoor temperature. It can use excess solar energy for cooling during summer or heating during colder periods.
- Automatic heating or cooling with solar surplus
- Temperature-based intelligent control
- Protection against repeated compressor starts
- Automatic consumption calibration
- Control and monitoring from mobile or web application
Compatibility is checked before installation, as the controller requires a supported Wi-Fi air-conditioning system.
- Capacity
- 5–20 kWh
- Installation
- Next to the inverter
- Typical warranty
- 10 years
Home batteries
Use your own sunshine in the evening and keep your peaks low
Without storage, most of your solar energy is produced while nobody is home. A home battery stores that surplus and releases it in the evening, so you buy far less electricity from the grid.
Combined with a smart power meter, the battery also limits your consumption peaks — which directly lowers the capacity component of your bill in Flanders. We only recommend a battery when the numbers make sense for your household.
- Modular capacity, expandable later
- Hybrid inverter and smart meter integration
- Automatic peak shaving and self-consumption optimisation
- Optional back-up for essential circuits
- Honest payback calculation before you decide
- Power
- 7.4 – 22 kW
- Smart charging
- Solar + load balancing
- Inspection
- Included
EV chargers
Smart charging at home — ideally on your own solar power
A home charger is faster, safer and cheaper than a household socket. We check your connection, advise on 1- or 3-phase charging and install a charger that talks to your solar system.
Smart charging uses your solar surplus first and balances the load with the rest of the house, so the main fuse never trips and your peaks stay under control.
- Wall-mounted or post-mounted chargers, indoor or outdoor
- Solar surplus charging and dynamic load balancing
- Charging cards and consumption reports for company cars
- Electrical inspection (AREI/RGIE) included
Our process
Five steps, one point of contact
- 01
Free consultation
A call or visit to understand your home, your consumption and your plans.
- 02
Design and quote
A detailed layout, a clear price and an honest estimate of your return.
- 03
Installation
Our own team installs the system, usually in one or two days.
- 04
Inspection and registration
Electrical inspection, grid registration and all the paperwork.
- 05
Handover and follow-up
We set up the app with you and stay reachable for the life of the system.
Not sure which combination suits you?
Start with the free simulation, or ask us directly — we will tell you honestly what makes sense.