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How it works?

How does it work?

ELSA is a useful decision-making tool for architects and engineers. Its main objective is to help and guide you at the early design stage of your building. This assistance is provided by offering different design alternatives and their relative environmental impact. This impacts are then compared to the 2000-Watt society target values in order to quantify the performance of each design alternative.
Design your building step by step

Design your building step by step

The tool is very intuitive. It provides you with a list of parameters representing technical and architectural solutions for modern buildings. For each one of these parameters, several variants are available in order to fulfil the requirements of the designers. It will be, therefore, possible to add step by step, the main design features that are relevant in each situation, taking into account specific environmental constraints or simple architectural decisions.
Know your environmental impact in advance

Know your environmental impact in advance

The principal benefit in the use of this tool is a fast and precise assessment of the CO2 emissions of the designed building, for the embodied and the operative part. Moreover, it will be possible to discover other useful environmental indicators, such as the Cumulative Energy Demand (CED [kWh/m2]) and the non-renewable Cumulative Energy Demand (CEDnr [kWh/m2]). Once a building project will be identified, it will also be possible to know all the energy needs of the building itself, such as the heating demand or the lighting consumption, as well as the energy production, given by the photovoltaic system.

Who are we?

This prototype has been developed in the context of the smart living building research programme, supported by EPFL and the Canton de Fribourg.
The project leader of the tool is the EPFL Building 2050 research group.
Two other partners who contributed to the project are: the Human-IST Research Center and EPFL+ECAL Lab.
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