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This table is based upon a dog's Resting Energy Requirements or RER. The RER is the basic amount of energy that a dog would use in a day while remaining at rest. The formula to calculate RER for animals between 2 and 45 kg (5 - 99 pounds) is: RER in kcal/day = 30(body weight in kilograms) + 70. Any activity or variable other than rest will require an increase in energy (RER) and an increase in calories to meet the energy needs. Realize that these numbers are not a reflection of maintenance calories but of resting energy levels.
I used the calorie calculator linked in the references section to calculate how much energy I would use in a day and it came out to 2266 calories which is 9480 joules. This will vary depending on your size, gender, age and level of activity.This is the answer to number 1.o find out how much energy you use directly in appliances, it's probably easiest just to watch what you do each day and write it down. Add up your energy usage for your house on your electricity meter for a month (usually in kWh) and divide it by the number of days in the month and the number of people in the house.