Click here to launch gallery. Meat has played a starring role in the evolution of the human diet. Raymond Dart, who in 1924 discovered the first fossil of a human ancestor in Africa, popularized the image of our early ancestors hunting meat to survive on the African savanna.
1 For the first 10 kWh per day on average in summer or 16 kWh per day on average in winter, you pay the rate of $0.0376 per kWh. 2  For additional use over 11 kWh per day on average in summer or over 17 kWh on average in winter, you pay the rate of $0.0793 per kWh.OTE: The normal billing period ranges from 57-63 days. To figure the average kWh use per day, Seattle City Light takes the total number of kWh used and divides by the number of days in the billing period.
4. Multiply the unit's kWh/day by the number of days you'd use it during the period you'd like to calculate. So to estimate an appliance's energy use in kWh per month, multiply its kWh/day by 31 (or 28, 29 or 30 depending on how many days there are in the month you want to measure).o continue the earlier example of the window fan, if energy costs 17 cents/kWh in your area, running the fan as estimated earlier for one year will cost you approximately 1.25 (kWh per day) * 365 (days--the time period) * .17 (cost of energy/kWh) = about $77.56 per year if you use the fan every day.