| Energy savings and coal... |
| Tuesday, 27 March 2007, Written by Julien | |
|
Electricity is so easy that we tend to forget that it has to be produced, and we usually do not know what is needed for switching on the lights. If you consider that:
So if we convert power consumption in coal, we have:
By the way, if you use a low energy bulb (20W is equivalent to a 100W bulb), you would need 5 times less coal. So during 10 hours, you would only consume 52g of coal! Do you still prefer usual bulbs?  * the above figures are rough estimates, it is not accurate but the order of magnitude is correct.
Comments
Adrien wrote :
And when you smell the sweet smell of coal in the Beijing air, you know that there is room for improvement. Even now that the heating is off ...
|
| < Prev | Next > |
|---|
