Self-consumption is the amount of electricity generated by your solar panels that you use directly.
- A self-consumption rate of 0% means that you don't use the electricity generated by your solar panels at all. All surplus electricity is fed into the grid
- A self-consumption rate of 100% means that you use all the electricity generated by your solar panels.
High self-consumption reduces your dependence on grid electricity, increasing the value of the electricity you produce. The average purchase cost of a kWh is around 23 cents, while the average selling price is around 5 cents. So consuming your electricity rather than feeding it back into the grid can earn you up to 4 times more!
A recent article has been written on this subject for a better understanding:
https://soltisfrance.site/news/comprendre-economies-panneaux-solaires-belgique-2023/