Light Budget

The tool can be found here: https://lightbudget.heia-fr.ch/

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This tool has been developed as a part of the LIGHTBUDGET project to support the designers in early-stage decision-making for facade design.

It offers a wide exploration database for up to 100000 building archetypes for all Swiss climate zones. It offers the co-relation between daylight optimisation and embodied carbon for different design options. It has a Graphical User Interface designed for building and construction industry professionals. The current database corresponds to a typical 2 story single family house in Switzerland

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​​How to use the interface

• drag and select the parameters or performance thresholds on the parallel coordinate plot chart

• select the subpopulations in the scatterplot chart using the select tools

• compare the average relative and absolute carbon emissions of selected design alternatives using the Sunburst chart

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Exercices to understand the tool:

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This tool was developed as part of the "Light Budget" project. To better understand the tools, refer to the project description​​

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Please note that the tools are not kept up to date; they are the results of research projects with limited funding durations. Furthermore, we take no responsibility for their use or for any errors they may cause.​​