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.
(watts of lamp divided-by 1000) times 24 hours times cost of electricity per KWH For example, if your area electricity costs are $0.12 per KWH and you want to know how much it will cost to run a 75 watt lamp (of any type) for 24 hours, the cost would be (75 / 1000) x 24 x 0.12) == $0.216, or 21.6 cents per day.