Solar. Anywhere from 1000-2500w depending on budget. The general idea is tiny home+super insulation+ small heater and AC. I'm aiming for the completely unrealistic effort of a 250w heater and ac. (Not combined) that's why I'm aiming for 300w, so I can run either max power (low-power max power you will) and still be "good". The rest of the power will be stored for fridge, lights, etc. (The general basic WH/T variable shit I get, just not conversions because my autismo brain goes brrrr)