What is sustainable energy? The common, yet rather simple definition is that an energy source is sustainable when it does not jeopardize the energy sources of future generations. Fossil fuels are an example of an energy source that will not be available for future generations.
Since March 2020 we have 8 solar panels on the south side of the roof of our house. The computer of the system informs us that we saved 3,4 tonnes of CO2. Moreover, we saved almost 800 euros on our energy bill. The excess energy we produce with our solar panels is transferred to the national electricity grid, for which we get a fee.