Approximately 3-4 kW per capita is required to approximate medium European lifestyle. A bit could be optimized, but not all that much.
Anything less and you're making important tradeoffs. Either on heating/cooling, transportation, or hardware capabilities.
Usually making tradeoffs hurts the most disadvantaged and poor.
Remember to also count stuff. Embodied energy is a thing so often forgotten. Trash and other waste disposal is not free either. Growing food requires energy input too.
Anything less and you're making important tradeoffs. Either on heating/cooling, transportation, or hardware capabilities. Usually making tradeoffs hurts the most disadvantaged and poor.
Remember to also count stuff. Embodied energy is a thing so often forgotten. Trash and other waste disposal is not free either. Growing food requires energy input too.