Nearly every human being on the planet consumes energy beyond the amount they derive from food, some more than others. In 2014, Americans, on average, consumed a total of 230 kilowatt-hours of energy per person per day.
Right now 30 out of 51 kwh/person/day of residential energy is used towards space and water heating. With a combination of heat pumps, better sealing and insulation, solar hot water, energy exchange ventilators, and ceiling fans, we can drop total residential energy down to 26 kwh/person/day. Put in all LED lightbulbs and efficient appliances (and a few other items I’ll mention in Part II) and we can drop it down to 21 kwh/person/day, below our future energy budget.