I have a similar project, I'm so overpaneled I bought an electric heater so I could actually see how many watts I brought in during a nice summer day. The victron UIs have an excellent graph history.
What people figure out to do with actually free energy will be exciting. There are a lot of extremely "inefficient" things that might suddenly become commonplace.
Proto-replicator technology where you dump your garbage into a barrel and it gets decomposed and recomposed into something similar to crude oil, blocks of metal, pure gasses, etc? Hydrocarbon fuel from air? Flying cars? You name it.
I doubt that it ends up being actually better due to efficiency losses but it’d be really cool!!
To make electric energy I would have to make a small steam plant to run a turbine.
Or a hydrogen fuel cell: https://en.wikipedia.org/wiki/Fuel_cell
The round-trip efficiency is of course abysmal compared to batteries, but if the input energy is "free", the increased density could pay off.