The average rate of power required by a US household all the time is about 1 kilowatt, or 1000 watts. Sometimes the household would need much more power and sometimes much less, but averaged out across the day and night, US households draw about 1000 watts from the grid all the time. California has a population of about 38 million and average household size in the US is 2.6 people, so California has about 38/2.6 14.6 million households. 14.6 million households need about how many MW of power? laced 13,000 traffic lights, each with three 150-watt incandescent bulbs, with traffic lights using 14-watt Light Emitting Diodes (LEDs). Each light has one bulb shining at any moment. (a) The original traffic lights drew how many kW from the grid? 13,000 x 150 = (b) The replacement traffic lights drew how many kW from the grid? (c) The replacement LED lights drew how many fewer kW from the grid compared to the incandescent lights