The thing that bothers me most about office AC, is that the air is stale due to poor maintenance. Yes there are regulations against this, but those are not being enforced because that would cost money and hurr-durr stockholders and hurr-durr employers. Home ACs are just wasteful. I live in a neighbourhood that has many many gardens that are fully paved over. In order to counter the heat, each house has several AC units. Dumb fucks.
I installed solar panels 5 years ago. Back then, a home battery was ~€9000 , so not worth it. Currently, a home battery starts at ~€1500 but with pitifully low capacity. There’s currently no real incentive to install these. You may save a bit of money, but at its current rate you would look at a 15 year ROI.
Switching to an EV would be a nice idea for surplus energy, but our anti-environment government has made it very unattractive to buy one, but now I am going off-topic so I’ll save that for another rant.
We are actually considering replacing our windows entirely with triple layer panes and in-built UV filters. Our current windows are double-layered and ~30 years old.