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.
On average it costs Â£66 to maintain a street light for a year. 6. It cost Â£28.03 to power each street light in 2009. 7. In 2009/10 it cost Â£546,663 to power all of the Council's street lights. 8. The maintenance costs of street lights in 2009/10 were Â£327,156. 9. The cost of running street lights in 2011 has risen. York Council (LED lights FAQs - City of York Council) estimate that converting to LEDS for existing standards is about Â£200, and saves about Â£29 per year.