Solar panels are good to harness renewable energy from the sun but as I said, solar panels are not that reusable once the lifetime runs out. Say all of them have a lifetime of 20 years, in a decade or so, we might see what a problem solar panel wastage will be. Govt should approach this effectively as well. You can read articles on Nuclear energy and how environmental friendly it is. France currently uses almost 100% nuclear energy and produces enough energy to send off to Germany, where they are facing an energy crisis.