Tag Archives: Reasons

Why Energy Efficiency is an important issue today?

World Energy Consumption Evolution over the past century

Vincent BRYANT

For about a century, the world population has been multiplied by 12. We are 12 times as many today as at the end of the XIXth century. Since 1879, when was the electric bulb was created, the world energy consumption has been multiplied by more than 50.

Alongside the increase of the world population, we can indeed notice that the energy needs per person also increase greatly, despite the innovations and the technological improvements from which the population benefits. Indeed, the technical yields were generally strongly improved during the past century, but these efforts have been completely compensated by two effects:


The 5 reasons why Energy Efficiency doesn’t work naturally

Everybody agree that Energy Efficiency is an important matter, and that it’s a priority. However, in practice, it looks as if implementing massive energy savings is much more complex than it seems to be initially. Amongst numerous reasons detailed in the attached document, 5 definitely shape the perception we have about Energy Efficiency. Here they are:

  1. Nobody sends you a cheque when you implement an Energy Conservation Measure! So, you can’t see it in your P&L, you can’t discount it, and you can’t value it in a Business Plan.
  2. It’s physically impossible to prove an energy saving! So, you can’t measure it with a meter.