Some very good ideas from here:
https://www.buzzfeed.com/thegeshow/top-10-coolest-uses-of-solar-panels
The first link is gone, there’s this one in Chile or another in China for example. The one in the Sahara has its critics. 😛
Good idea with the bins though, get them enough power to trot away at COB to unload at the local disposal centre. Might be a thing. The outdoor urinals now popular in Europe could flush by the power of the sun as well, in fact an aesthetic integration into an attractive water feature would brighten up the environs for the delight of all. 🙂