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.
Once you have the kWh, multiply by 10 cents per kWh to get an approximate cost to operate the appliance for one hour. For example: Consider an appliance that uses 600 watts.Divide 600 watts by 1,000 = .6 kWh. Multiply .6 kWh by 10 cents per kWh = 6 cents per hour.Christmas Lights: 50 Non LED Mini .................................................................. cent per 5 hours Other: 50 watt mercury bulb ........................................... 1 cent per 2 hours70 watt high pressure sodium .......................... 7 cents per 10 hours COOKING Coffee Maker: Automatic Percolator ......................................