Categorie: indicator

CO2 should not be traded

This week I was confronted again with CO2 calculations. It was about the (absolute) CO2 budget, the maximum that can still be emitted to keep a chance of staying under 1.5 degrees, and which will be exhausted at the end of next year.[1] The starting point, of course, should be…

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LCA is not for practice. We need absolute energy indicators. 2/2

In many countries there is discussion at the moment about measuring the environmental impact of building ( and living ). [1] On the one hand of course the (operational) energy consumption, and how to deal with limited CO2 emission budgets. But on the other hand even more on the environmental…

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Building evaluation should change 1/2

There is a lot of discussion in the Netherlands about how to assess buildings, if you integrate material impacts in addition to energy, as well as to somehow include CO2 budgets. There is already an instrument for this, the MPG, (materials performance Buildings) but it is under discussion. Besides, in…

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The ‘Solar Space’, per m2 of living area 2/2

Since we are in an energy transition , in which we completely switch to renewable energy, the energy at building level will mainly have to come from solar energy. We assume that, the more local energy the better, and a ‘0 energy house’, including compensation for material energy, to be…

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MNB1: 0-CO2 per 2030, MNB2: max 550 kg/m2

Last week, two interesting reports were published analysing how regulations can better support ‘sustainable’ material use. Very esteemed colleagues, united in a Dutch ‘Gideons tribe’ to make the buildings sector move faster, have been working on this. [1] I can agree in general with the contents and analyses ( to…

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