Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Germany_Electricity_Generation-2013-06-16.png/220px-Germany_Electricity_Generation-2013-06-16.png
Cout de fabrication panneau solaire
Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Germany_Electricity_Generation-2013-06-16.png/220px-Germany_Electricity_Generation-2013-06-16.png