(letter send to party leaders in parliament) 1 The annual increased installation of solar panels makes CO2 emissions rise. This is because solar panels need about 3 years to compensate for their CO2 during production. So if more solar panels… Continue Reading
Big headlines in Nature last week: [1]” Emissions are still rising: disaster up the cuts “And” Leaders at climate summit get bad news: CO2 emissions are rising again “. Astonishing that may not be, however: if the economy continues to… Continue Reading
The Trias Energetica is one of the generic guidelines that has a wide adoption in the Netherlands since the nineties: it states that, in order of importance: 1 reduce energy demand, 2 use renewable energy 3 use fossil fuels as… Continue Reading
In principle, its impossible to create a 0-embodied energy house, energy will always be needed. However, in the present time 0-embodied energy it is understandable as 0-fossil embodied energy, exa house exclusively based on renewable energy. 0-embodied energy, if that… Continue Reading
It is remarkable that the kg/m2 approach for buildings , as described in the previous article, is nearly completely absent. That is, nowadays. More then 100 years ago it was regularly used a a criterion in architectural competitions, the lower… Continue Reading
Strange, really, that calculating in kWh seems normal for everyone. Especially in this time, because kWh does say nothing about the origin of the energy, which can be anything, from labor, wind turbines, or coal to nuclear energy. Currently it… Continue Reading
There are many misunderstandings , when it comes to evaluating resource cycles. As well as in daily practice, as in science. A problem in this is the human perception to focus on things that seem relevant for mankind. For instance… Continue Reading
Since quit a few years I am involved in mass retrofit projects for 0-energy performance, mainly with prefab panel based solutions. In the Netherlands, but also in Europe, recently among others within the EU H2020 project More-Connect, in which 5… Continue Reading
While we are part of a energy transition globally, many calculations are made based on costs, in cts/kWh, and wind and solar now seem to become very cheap. Which is positive, but cost unfortunately do not say anything about he… Continue Reading
So how could you do that, restoring minerals or metals? It happened that last week I was participating in the “Exergy, LCA & sustainability conference, ELCAS, 5th edition, originating from a EU COST project. And I presented a paper (with… Continue Reading