In Eastern France, SPIE is supporting the Regional Delegation of RTE, France’s transmission system operator, in optimising the energy performance of its buildings.
Elisabeth Bertin, RTE Delegate for the Grand Est region, tells us more about the partnership, its results and its outlook.
“In addition to its 20,000 sq.m. regional head office in Villers-lès-Nancy, RTE owns a large number of office properties on 20 sites in the Grand Est and Bourgogne-Franche-Comté regions. This makes managing their energy use particularly important for us, especially in the light of France’s mandated energy saving standards for office buildings. Another key challenge is to demonstrate that this type of building can make a significant contribution to reducing power grid demand during peak periods.
Through a five-year multi-technical maintenance contract covering all our building, SPIE is helping us to meet these challenges, with a special consultancy role at our head office. Among the energy-saving initiatives undertaken there since 2022, I can mention optimising the programming of a large building’s centralised technical management system, in particular by reducing the average indoor temperature. I'm also thinking of the creation of an ‘Ecowatt’ button that switches the entire site to low power mode in real time. We’ve also replaced energy-intensive equipment or upgraded the lighting in three buildings with LEDs.
Result :
As a result, energy use at our regional head office has declined by 25% since 2021. There was a 12% reduction in 2023 alone, led by our initiatives to improve regulation, which obviously took the user experience into account. We’re also proud of having won two awards for our Villers-lès-Nancy site in the Cube Flex 2023 challenge, which honours buildings capable of saving energy in critical time slots.
We intend to stay this course, supported by SPIE’s expertise and advice. For example, the Group is deploying electricity submeters in one of the head office buildings, whose more precise metering will enable us to identify new avenues to optimisation. We’re also working together to introduce an energy performance contract that will further strengthen our partnership with SPIE in the years ahead.”
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