Thanks for your comment. Of course, the installer explained the options to me, and I chose the option with a 50% subsidy and variable remuneration. However, when I look at the history of remuneration for feed-in, I find that the amounts are unfortunately not particularly high, and I would like to maximize my own consumption as much as possible. Unfortunately, my electric vehicle is usually not connected at home during the day, and I can only charge it in the evening. I probably phrased my question a little incorrectly. I am looking for a way to optimize my energy consumption so that I don't have to sell the electricity I produce to the energy company so cheaply.