Off-Grid Solar System Design: Complete Guide for European Homes
Designing an off-grid solar system requires careful calculation of your energy needs, solar panel capacity, and battery storage.
1. Calculate Your Daily Energy Usage
List all appliances and their wattage. Typical European home: 10-20 kWh/day.
2. Sizing Solar Panels
Rule of thumb: 4x your daily usage for winter autonomy. In EU, expect 3-4 peak sun hours in winter.
3. Battery Bank Sizing
For 3-day autonomy: Daily usage x 3. A 10kWh daily home needs 30kWh battery capacity.
4. Inverter Selection
Choose pure sine wave inverter at least 25% larger than peak load.
5. System Diagram
Solar panels → Charge Controller → Battery → Inverter → Home loads
