For instance, you could kiss your kids on their heads rather than their cheeks for a few days. You could ask your spouse to do bedtime stories and baths for a few nights. But obviously, you canât be so careful in your efforts to prevent germs from spreading that you feel like youâre shunning your kids.
If you grow short plants, you should definitely try LEDs. 1  The first series of costs on the chart represents an electricity cost of $0.12/kwH, or 12 cents per kilowatt hour (a kilowatt hour is 1,000 watts being used for one hour). 2  $0.12/kwH was the US national average cost for electricity in 2011.
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.