David MacKay of the University of Cambridge has published a giant report comparing energy use in various scenarios, adding a exhalation-inducing bit of perspective on our daily, personal power use. Treehugger reports:
Case in point – cell phone chargers. David performs some tests and concludes that these chargers use maybe 0.01-0.05 kWh per day; over a year, that’s the equivalent of a skipping a single bath (5 kWh per pop), or driving 6 minutes less annually (average driver being 40 kWh per day). David makes the point that all else being equal, you should of course unplug the charger. On balance though, better to go stinky for one day or lose a convienence store run
Saving power where you can is laudable, of course, but as I am constantly in a lather about something or another, it’s a relief to know that my long, warm showers — a daily respite from stress — are what I should really be stressing out about. In fact, I think I’ll call someone and tell them about it.