Introduction to Solar Inverters
Inverters are essential parts in any solar installation in Belgium. They convert DC to AC. In 2026, choosing between micro and central is key. Over 150,000 installations exist, per APERe.
With subsidies like Qualiwatt, understanding is important. Wrong choice can cause 10-20% loss. Use our calculator.
This guide analyzes definitions, comparisons, and applications.
Trends show 15% growth for micros in Benelux.
Belgium aims for 8 GW solar by 2030.
What is a Central Inverter?
A central inverter manages all panels in series. Brands like SMA offer 97% efficiency.
Sensitive to shading, loss 5-15%.
Costs 2,000-4,000 € for 10 kWc.
Compatible with batteries.
Example: House in Namur with 8,000 kWh/year.
What is a Micro-Inverter?
Micros are under each panel, optimize individually. Enphase IQ8 with 97.5%.
Increases production 20% in shading.
Costs 2,500-5,000 €, warranty 25 years.
Per-panel monitoring.
Example: Apartment in Brussels with 3,500 kWh.
Advantages and Disadvantages of Central Inverters
Advantages: Cheap 0.2-0.4 €/W, easy installation.
Disadvantages: Shading sensitive, global failure.
- Advantage: For large installations.
- Disadvantage: Short lifespan.
Advantages and Disadvantages of Micro-Inverters
Advantages: Optimization 15-25%, safety.
Disadvantages: More expensive, complex installation.
- Advantage: For shaded roofs.
- Disadvantage: More parts.
Cost Comparison in 2026
Central: 1,500-3,000 €, Micro: 2,000-4,500 €. ROI 4-6 years.
| Type | Cost (€) |
|---|---|
| Central | 2,000 |
| Micro | 3,500 |
Micros save through better production.
Applications and Subsidies in Belgium
Qualiwatt up to 1,000 €. Green certificates in Brussels.
For batteries, micros ideal.
- Wallonia: 3 kWc min.
Conclusion and Advice
Choose based on needs. Request quote.
Use calculator.
Solar grows 20%.