Roof Type

Flat roof

Mounting Type

East-west system

Project Type

Logistic warehouse

Installed kWp


Making light work of rooftop solar

Weight-sensitive PV for France’s food logistics

For a logistics giant with 236 platforms and warehouses, energy transition begins at home. See how novotegra was used to mount a structurally sensitive rooftop. With weight restrictions to consider, proper planning was critical.

Icon/20x20/Arrow-left Created with Sketch. Donzenac, France

Setting the scene

STEF are a French food logistics player with a huge presence across the EU. Their ongoing energy transition efforts are seeing them install photovoltaic modules on warehouse rooftops for self-consumption. Some sites are already aiming for as close to 100% self-generated energy use as humanly possible.


Meeting the challenges

At STEF’s Donzenac site, novotegra was used to mount photovoltaic modules across 1850 m2 of flat roof. The warehouse’s construction meant that we had to proceed carefully with a limited surface load. Using Solar-Planit, we could truly optimise every square metre of available space.


The result

STEF Donzenac now produces 237 kWp of clean energy for this critical nexus in France’s food infrastructure. All this was achieved across a planning and implementation period of only six months. The group are now well on their way towards their goal of 100% low-carbon energy by 2025.

“Some other solutions simply can’t handle a 25kg per m2 load on projects like this. novotegra can. Even the most sensitive sites are suitable for rooftop PV.”


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