9.9 billion kWh of electrical power each year (1A city has a population of a = 1.5 million people (1 million is 10® ). The city uses b billion is 10°, this is the American definition of 1 billion). A kilowatt-hour is a power of 1000 watts for one hour. In watts, what is the average power used by the city over the year? If this power were delivered by power lines at 240 volts, what current would be required? If it were delivered by power lines at 220 kV, what total current would be required?

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