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--- planning:thermal_protection:don_t_save_on_the_insulation [2020/09/12 13:22] – [Ecological analysis] wfeist
+++ planning:thermal_protection:don_t_save_on_the_insulation [2020/09/12 13:27] (current) – [Cost/Benefit Analysis] wfeist
@@ Line 44: / Line 44: @@
 ^ Level of thermal protection ^Typical old\\ external wall ^Moderately insulated\\ external wall^Good insulation^
-^ Annual energy costs\\ (108 m² wall) ((A heating system based on fuel-oil was assumed, but the results for other energy carriers are basically no different.\\ The price for fuel oil was assumed to be 0.60 Euros per litre (this article was first published in 2006; in 2011 the energy prices are already more than 35% higher, so the results are even more favourable for the best level of insulation). The marginal annual utilisation factor of the heating system was assumed to be 90 %.))|   786 €/a   |   277 €/a   |   71 €/a   |
+^ Annual energy costs\\ (108 m² wall) ((A heating system based on fuel-oil was assumed, but the results for other energy carriers are basically no different.\\ The price for fuel oil was assumed to be 0.60 Euros per litre (this article was first published in 2006; in 2011 the energy prices have been more than 35% higher, but in 2016-2020 the average level of ~0.60 €/ltr were reached again. So, the price here was guessed quite well. In future it might be somewhat higher due to the need for an energy taxation). The marginal annual utilisation factor of the heating system was assumed to be 90 %.))|   786 €/a   |   277 €/a   |   71 €/a   |
 ^ Production costs\\ (1 m² wall)|   40 €/m²\\ (only renewal of plaster)   |   60 €/m²   |   80 €/m²   |
 ^ Production costs\\ (108 m² wall)|   4320 €   |   6480 €   |   8640 €   |