Three key facts we like from The Immune System and Foreign Invaders: 1  White blood cells known as leukocytes make up the immune system portion of the blood. 2  Leukocytes are divided into three main groups that help protect our bodies: granulocytes, lymphocytes, and monocytes.
The average price people in the U.S. pay for electricity is about 12 cents per kilowatt-hour. (Context: A typical U.S. household uses about 908 kWh a month of electricity.). But there's huge variation from state to state. Here's a map of residential electricity prices, according to the Energy Information Administration. People in Hawaii pay the most for electricity, about 33 cents per kWh. A Hawaiian household whose electricity use was around the national average would have a monthly electric bill over $300.
When you use 1000 kilowatts for an hour, that's a kilowatt-hour (kWh). The average cost for electricity in the U.S. is 11 cents per kilowatt-hour. Assuming you pay 11 cents/kWh, then your cost is: 600 watts: 0.6 x $0.11 = $0.07 /hr. 900 watts: 0.9 x $0.11 = $0.10 /hr.1500 watts: 1.5 x $0.11 = $0.17/hr. It's probably more useful to figure the cost per month.he average cost for electricity in the U.S. is 11 cents per kilowatt-hour. Assuming you pay 11 cents/kWh, then your cost is: 600 watts: 0.6 x $0.11 = $0.07 /hr. 900 watts: 0.9 x $0.11 = $0.10 /hr.