TEXTS

An aid for better choosing and deploying future biosolar roofs

The TEXTS (Toitures EXTensives Solaires) project is looking at biosolar roofs, which combine photovoltaic panels and vegetation. These installations are important elements in the production of renewable energy and the preservation of biodiversity.

At present, in order to optimise and deploy this type of roofing, it is necessary to quantify not only its energy and biological benefits, but also its environmental benefits (life cycle analysis of materials), its costs and its acceptability to society; to what extent are property owners prepared to invest in biosolar roofing?

The TEXTS project compares eight different combinations of biosolar roofs (depending in particular on the layout of the solar panels, their inclination, their spacing, and the type of substrate and vegetation). The comparison is based on a number of criteria, including life cycle, energy production, costs, biodiversity conservation and socio-economic aspects.

A multi-criteria analysis brings together the various issues studied, to help choose the most appropriate biosolar roof project.

^{Biosolar roof at HEPIA, site of Lullier}