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.
the chart at the left shows the average cost of electricity for 2014 by consumer group per the eia the us energy information administration for 2014 the average residential cost was 12 50 cents per kilo watt hour up 3 1 % from 2013 commercial was 10 75 cents and industrial 7 01 cents typical degradation rate is 0 5 % per year although some rates are as high as 1 0 % and as low as 0 25 % the first year energy production of the system is expressed in kilowatt hours generated per kilowatt of peak capacity