There are several oil companies/sources, but for electricity you are at mercy of those who control grid. Again, unless you have your own generation.
Which is cheap compared to even cheap Chinese cars before the tariffs are added: https://www.kaufland.de/product/512021383/?search_value=pv+c...
There are several oil companies/sources, but for electricity you are at mercy of those who control grid. Again, unless you have your own generation.