I built loads of Solar Farms, I collect from Industry first, & get new contracts going, then businesses, then houses. As my energy decreases, I start collecting from Community, as they replace energy. I often don't collect from all my Community buildings every time, as they only renew every 8hrs or so. Then I have energy "banked" when I need it for building/expansion etc. i can get my energy back up to 50 from my Community Buildings.
What does everyone do if you have neighbours who seem to have stopped playing? Can you delete them? Thanks 😃