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How to size the right solar system for your home

System size starts from your real loads, not from a number of panels. Here are the steps we follow when studying a home.

The most common mistake when buying a solar system is starting with "how many panels do I need?". The right question is: how much do I consume, and when?

1. List your loads

Write down the appliances the system will run, each one's wattage and its daily hours. Power times hours gives your daily consumption in watt-hours.

2. Separate day and night loads

Daytime loads are fed directly by the panels; night loads need batteries. The more consumption you shift to daytime, the less storage you need.

3. Size the inverter

The inverter must handle your highest expected peak, with margin for motors such as pumps and air conditioners.

4. Calculate panels and batteries

Panel capacity comes from daily consumption divided by effective sun hours with a loss margin; batteries come from night consumption and the autonomy you want.

Our engineering team carries out this study on site before any quotation.

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