I-way

However we are generally desiring a better live for our children, than the one we had, it seems that we are unable to imagine a better world.  The sci-fi and anticipation books and movies present us merely worlds where we would not like our children have to live.  So, for once, let us try to…

¿ Heat pumps, paradigm or fallacy ?

Heat pumps have the mythic characteristic of providing a nominal yield of more than 100%, with values in the range of 200-400%.  This is due to the few energy necessary, to make the heat transfer fluid transport the captured heat, in comparison to the amount of heat offtaken from the atmosphere or the soil. But,…

Pandemic stock exchange and fashion

Like a lot people, when the covid-19 broke out in our country and you couldn’t open the radio or the tv without hearing about it, I wondered how a pandemy spread. While the basic law derives from a simple differential equation, the reality is a bit more complicated, and the implications are much more widespread. Simply…

Earth-See-sun: mobility & resilient sourcing

No, it is not a remake of a song of Serge Gainsbourg (See, sex & Sun) nor a reshuffling of a jazz band (Earth, Wind and Fire), but the title of a document (https://ecolo.be/terre-mer-soleil-10-mensonges-nuclearistes-et-3-scenarios-verts/) written by the Green (environmentalists political party) in Belgium, I read a couple of months ago. Despite its title, this document…

¿ Hydrogen or Methane ?

Some people claim hydrogen as being THE solution for the future energy source.  Others are seeing methane as being the right answer to run through the energy transition, and even for further when produced on a renewable way.  But let us deepen in the matter and analyse both, without a priori, purely along the energetic…

Will EV charging overload the grid ?

We hear from time to time that the charging of electric vehicles (EV) will require huge investments to avoid overloading the grid.  This is actually not true and from far.  In a previous article (see https://edenergy.be/archives/1364?lang=en), the reference consumption of an EV has been established around 15 kWh/100km.  With a daily driven distance remaining between…

Voiture électrique: empreinte environnementale

La vidéo (https://www.rtbf.be/auvio/detail_voiture-electrique-697-612-kms-pour-devenir-verte?id=2467532) et l’article qui affirme qu’un véhicule électrique devait parcourir 697.612 kms pour commencer à émettre moins de CO2 qu’une voiture thermique essence, m’ont déçu parce que les éléments présentés sont incomplets et mènent à une conclusion erronée.  Voici pourquoi.  Une batterie de 40 kWh et le moteur électrique qu’elle alimente ont une…