The other day an article titled “The 330-Watt Person”
appeared in one of the Zurich newspapers. This refers back to the 2000-Watt
Society, a goal for energy use in Switzerland’s future. Each person should then
use no more than 2000 watts, which is the equivalent of having 20 bulbs of 100
watts burning continuously. While the measure for the goal is expressed in
units usually reserved for electricity, other forms of energy are also
included, i.e. fossil fuels, biomass etc. and then measurement in watts becomes
an equivalent. This is all very confusing, but what is important is that it is
estimated that energy use per person in Switzerland today is 3 times this value,
so 2000 watts is an ambitious goal indeed.
Given that 2000 watts is several times greater than 330
watts, what is the meaning of this article? It seems that the author measured
his home electricity use during one day. For this purpose he used a measuring
device into which all the applicable devices and apparatus could be plugged: lights,
cell phone charger, fridge, coffee maker etc. At the end of the day, all of his
measurements added up to 330 watts.
The author learned a few valuable lessons from this
exercise. The enormous use of electricity by old-fashioned light bulbs, when
compared to LEDs, was a shock. He saw in quantitative detail just how much
energy is wasted by apparatus in standby mode. But was this exercise really
worth an article covering nearly an entire newspaper page? To be sure, he says
clearly that he could not measure energy-gobbling apparatus such as boilers and
heating, as they could not be plugged into his measuring device. He also
mentions the fact that private electricity use in the home is a fraction of
total energy use, with heating and mobility making up by far the largest
percentage.
If the author has encouraged a number of readers to clean up
their act as regards old-fashioned light bulbs and standby, he will perhaps
have increased awareness of the need to cut back on one’s own electricity use.
But given the overwhelming portion of energy use laid at the door of heating
and mobility, it seems misleading and out of proportion to the size of the
problem to go into such detail as regards only the use of electricity in the
home. Perhaps I am being cynical, but I can imagine a smug person thinking he
has really contributed to saving energy by turning off apparatus on standby,
but who then gets into his powerful car and zooms to a shop easily reachable by
bike or tram. Once there he – or she! – purchases out-of-season produce flown
thousands of miles, cancelling out the switching off standby many times over.
Let’s have a sense of proportion here.