A-02 Accounting for technical building equipment – screening and simplified LCA

Aspect A-02 Accounting for technical building equipment – screening and simplified LCA
Description
Different types of technical building equipment can be included in building LCAs: e.g. boilers for heating, air-conditioning systems for cooling, duct networks for ventilation, solar panels for hot water, lifts, lighting etc. The development of energy-efficient buildings has meant that the relative share of the embodied impacts has recently increased, leading to more consistent modelling of the related impacts of building products and technical equipment. In addition, the LCA model should be consistent: if, for example, the PV-related energy consumption is included within Module B6, then the impacts of the PV manufacture should be accounted for in Modules A1–A3.

Related study objective

stand-alone LCA comparative assertion

Related study phase

goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

Relevant for

new buildings existing buildings building products screening LCA simplified LCA complete LCA
Provisions For screening and simplified LCA, accounting for technical building equipment is optional, owing to potentially missing data.If LCA or EPD data are available for technical equipment (e.g. in generic LCA databases) at the European or national level, they should be included, using these data as default values.
Rules from:
EN 15978:7.5.2 Description of the physical characteristics of the building
Guidance
The practitioner should use default values for the technical building equipment for screening and simplified LCA. Such default values should come from available LCA generic databases (e.g. Ecoinvent, ELCD, ESUCO), or otherwise may be defined with the relevant stakeholders.

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