Square Roots. A square root goes the other way: 3 squared is 9, so a square root of 9 is 3. A square root of a number is ... ... a value that can be multiplied by itself to give the original number. A square root of 9 is ...... 3, because when 3 is multiplied by itself we get 9.quare Roots. A square root goes the other way: 3 squared is 9, so a square root of 9 is 3. A square root of a number is ... ... a value that can be multiplied by itself to give the original number. A square root of 9 is ...
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.
Capital costs. A kilowatt is a unit of electrical power capacity. According to a U.S. Energy Information Administration, or EIA, report published in April 2013, the cost of building a utility-gradeâgreater than 150 MW (megawatt)âsolar power plant was $3,873 per KW (kilowatt).A 1KW power plant generates one kilowatt hour of electricity if it runs at 100% capacity for an hour.n comparison, cleaner coal-fired power plants cost upwards of $4,000 per KW, and advanced natural-gas fired plants cost $2,000 per KW. Nuclear plants are the most expensive to build at $5,500 per KW. A wind power plant, another renewable source, costs $2,200 per KW to build.