It's a good question, but I wondered what happens on rainy days without sun. To be honest, I have a pretty good opinion about solar panels and the batteries that generate solar electricity. I even had the experience of working with guys from this industry. However, these batteries can disappoint you in the most critical moments. So, to be honest, I would prefer classical power over solar one just to be safe. Still, I've just shared my opinion, so feel free to text me if anyone has any arguments. I'm interested in discussing this subject more.