Solar inverter price in Belgium in 2026
The inverter turns the direct current from your panels into usable current. Its price varies threefold depending on the type (string, micro or hybrid), the power and the brand. Here are the 2026 ranges to choose without surprises.
Indicative ranges, installation and paperwork included.
Solar inverter price by type and power
Ranges for an inverter supplied and installed, connection and commissioning included. Excluding solar panels and storage battery.
| Inverter type | Small installation 3 kW · 6–8 panels | Medium installation 5 kW · 10–14 panels | Large installation 8 kW · 16–22 panels |
|---|---|---|---|
| String inverterThe most widespread | 800 – 1 000 € | 1 000 – 1 300 € | 1 200 – 1 500 € |
| Microinverters (kit)Enphase / APsystems | 1 200 – 1 600 € | 1 600 – 2 000 € | 2 000 – 2 500 € |
| Hybrid inverterSMA / Huawei battery-compatible | 1 500 – 2 000 € | 1 800 – 2 400 € | 2 400 – 3 000 € |
Indicative prices incl. VAT, supply and installation included. The exact sizing is set during the free quote. Learn more: inverter guide, solar panel prices, battery storage.
What makes your inverter price vary
For the same power, two quotes can differ by several hundred euros. Here are the items that truly weigh.
- Inverter type
The string inverter is the cheapest and most common. Microinverters cost 30 to 50 % more but optimise each panel independently. The hybrid inverter is the most expensive because it also manages the storage battery.
Compare the types → - Power (kW)
The inverter’s power must match that of the installation (in kWp). Under-sizing clips the output; over-sizing is wasteful. The general rule: inverter equal to 80–110 % of the peak power.
- Brand (SMA / Huawei / Enphase)
SMA (Germany) is the European benchmark; the Huawei SUN2000 offers excellent value for money and advanced monitoring; Enphase is the microinverter leader with a 25-year warranty.
See the brands → - Number of MPPTs
A multi-MPPT inverter (2 inputs or more) can manage roof sections with different orientations or partial shading. Each additional MPPT raises the price by 100 to 200 €.
- Monitoring & connectivity
Most recent inverters integrate Wi-Fi and a real-time tracking app. Advanced monitoring solutions (Modbus gateway, home automation integration) can add 100 to 300 €.
- Manufacturer warranty
The standard warranty is 10 years for a string inverter, 25 years for Enphase microinverters. Extending a string inverter’s warranty to 20 years costs an extra 150 to 300 € and secures your investment over the long term.
The subsidies that lighten your inverter cost
The inverter is an integral part of the solar installation: it is eligible for the same regional grants as the panels. Here are the 2026 benchmarks.
Green certificates (production support)
Since the inverter is included in the installation, the Walloon support applies to the whole system. Green certificates are calculated on the estimated electricity output and bought back at a guaranteed rate for 5 years.
- Installation carried out by an approved installer
- Inverter compliant with grid connection standards
- Installation declaration to the CWaPE
Green certificates + Renolution grant
Brussels subsidises the entire solar installation, inverter included. The green certificate mechanism runs for 10 years, and the Renolution grant can cover part of the equipment depending on your income.
- Home more than 10 years old for the Renolution grant
- Certified installer and detailed invoice required
- Declaration to Brugel within the regulatory deadlines
Get your price net of grants, within 48h
We check your entitlements, quote net of grant and handle the paperwork: you pay nothing upfront.
- We check your entitlements
Region, consumption, roof: we identify the available subsidies and choose the right inverter.
- We size and quote
Power, inverter type (string, micro or hybrid), battery compatibility: quote net of grant.
- We handle the application
Forms, certificates, declaration to the grid operator: we take care of it.
- We deduct where possible
The subsidies are taken off your bill or clearly indicated for fast reimbursement.
In Flanders? Local grants and compensation tariffs also apply — ask us for the details for your municipality. See all solar subsidies.
A range in 10 seconds
Choose an inverter type and enter the number of panels to get an order of magnitude. The free quote remains the only precise estimate.
Indicative estimate for the inverter only, excluding solar panels and storage battery.
What a real inverter quote looks like
A concrete case to make the ranges meaningful — your project will be costed according to your installation and your needs.
Indicative example dated 2026, string inverter 6 kW installed alone. The inverter typically represents 15 to 20 % of the total cost of a solar installation. Request your quote for a costing tailored to your situation.
Dig deeper before deciding
- Inverter guide Everything on inverters
Types, brands, MPPT, monitoring and selection criteria: the complete guide to choosing your inverter well.
Read the inverter guide → - Solar panel prices 2026 tariffs
Complete ranges by installed power (kWp) for the panels alone or the complete system.
See the solar prices → - Choosing your inverter Practical guide
String, micro or hybrid? The step-by-step guide to choosing the right inverter for your roof and your goals.
Read the guide →
Your questions about solar inverter prices
How much does a solar inverter cost in 2026?
A string inverter of 3 to 8 kW costs between 800 and 1 500 € installed. A microinverter kit for the same installation comes to 1 200–2 500 €. A hybrid inverter (battery-compatible) sits between 1 500 and 3 000 € depending on the power and the brand.
What is the difference between a string inverter and microinverters?
The string inverter is a central unit that converts the output of all panels at once: it is cheaper and suits well-lit, shade-free roofs. Microinverters, one per panel, cost 30 to 50 % more but optimise each panel independently — ideal in case of partial shading or a complex roof.
What is a hybrid inverter and who is it for?
The hybrid inverter manages both the solar output and the charging of a storage battery. It is essential if you want to add a battery to your installation. Its higher price (1 500–3 000 €) is justified if you plan storage within the next 2 to 3 years.
Which inverter brand should I choose?
SMA (Germany) is the European benchmark for reliability and after-sales support. The Huawei SUN2000 offers excellent value for money with very complete monitoring. Enphase is the microinverter leader with a 25-year warranty. We recommend according to your configuration and budget during the quote.
Is the inverter included in the solar grants?
Yes. The inverter is an integral part of the solar installation and is eligible for the same regional support (green certificates in Wallonia and Brussels, local grants in Flanders). The reduced 6 % renovation VAT also applies.
How long does a solar inverter last?
A string inverter lasts on average 10 to 15 years; its standard warranty is 10 years, extendable to 20. Enphase microinverters are guaranteed 25 years, matching the lifespan of the panels. Plan to replace a string inverter mid-life of the installation (about 600–1 200 € excluding installation).
Your exact inverter price, costed and net of grants
The ranges give the order of magnitude — the quote gives the figure. Analysis of your installation, choice of the right inverter and grants calculated, a single point of contact. In under a minute.
- Free and with no obligation
- Grants & 6 % VAT calculated and deducted
- Costed quote within 48h business days