1) A common energy consumption for a family is about 1000 kW hr / month. How much power would that be on the average? (Hint: Notice that hour and month are both units of time so kW hr per month is really a power unit. Assume 24 hr = 1 day and 30 days = 1 month.)
2) If a power substation receives about 1.5 MW through its incoming cable (ignore line losses), about how many families can this cable service?
3) What factors affects the power consumption of a typical family? How would an electrical engineer plan for these factors in their design?