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.
If you are paying about 12p per Kwh, then a 60 watt lamp will cost about Â£0.007p or 7/10 of a penny per hour. If you swap it for an energy saving equivalent of 11/12 watts you will get 5 hours for the same price and the lamp will last for up to 18 times longer, depending on the brand. kilowatt hour is the same as a unit of electricty, which roughly costs 9 pence. This means you can run 1000w (1Kw) for 1 hour for 9pence. So if you divide 1000 by 16.66 you get 60 (the light bulb) then divide 9 pence by 16.66 you get 0.54pence.