Greenhouse Emissions in 2 Passive Plus Houses with 2 Energy Systems
By Søren Dietz
To reduce greenhouse gas by 70% in 2030 a new max. emission for buildings will be implemented in Denmark. In 2023 a limitation for buildings is proposed to be 8 kg CO2e/m2 per year and in 2029 a limit of 5 kg CO2e/m2 per year. A lifecycle analyse (LCA) according to EN 15978 has to be made with the lifecycle fases A1-A3, A4-A5, B4, B6, C3, C4, covering all emissions from “Cradle to grave”. In Denmark the LCA tool that has to be used to document the total emissions is “LCAbyg”.
In this Paper LCA calculations are done by using LCAbyg based on 2 different material data to analyse how this can influence total emission results. The data used are: 1) the generic material data and 2) by using EPD material product data.