Terra Extrem DN40
Applications Terra Extrem probes are manufactured from special polymers and are closely monitored before, during and after production to check the raw materials and manufacturing
As part of a project to build the Sir John Monash Centre on the site of the National Australian Memorial in Fouilloy in the Somme, Terrendis France, a subsidiary of the Elydan Group specialising in heating and renewable energies, supplied the 41 DN 40 diameter, 185 metre deep geothermal probes. This was a sound economic, ecological and aesthetic choice for this place of reflection and amounted to a huge and unusual undertaking that called for unique logistics and military precision of organisation.
The remarkable extent of the project has provided an invaluable reference for Terrendis in the institutional sector and the development of renewable energy installations has confirmed the faith we at the RYB Group put in this activity and the support we have given it for nearly 10 years.
Marc-Antoine Blin, Président Directeur Général de Terrendis
We looked to Terrendis because they are the only French manufacturers of geothermal probes and the company had already won us over on previous projects by the quality of their products and their expertise. Moreover, with the Terrendis probes being guaranteed for 30 years, the chosen solution yielded low energy costs for both building heating and cooling.
Christophe Luttmann, Responsable du Développement Forage Géothermie SGV chez Weishaupt
The European Regional Development Fund (ERDF) wanted to participate in the financing of this project to make the Memorial a reference point for promoting geothermal technology in France and Europe.
Technical prowess in the production of the probes and the drilling
To make probes of such a large size, Terrendis had to adapt its production and packaging methods. The probes were delivered on lorries carrying 4 probes on drums instead of the usual 24, a particularly complicated and unusual logistical challenge to overcome.
Weishaupt installed the geothermal heat capture system using a destructive sleeved drilling technique involving the insertion of temporary tubing into the ground to prevent collapse with a narrower tool inside it to carry out the destructive drilling.
The completion date was around Anzac Day 2018, commemorating the hundredth anniversary of the battle of Villers-Bretonneux. The site is currently being listed as a historic national site and is in the running for UNESCO recognition.
100% Made in France Geothermal Probes
Terrendis supplied the Double U DN 40, 185 metre deep geothermal probes designed to capture heat from the ground. Coolant transports the energy transmitted by the ground via the vertical geothermal probe which is then used by a thermodynamic system (or heat pump) to heat and cool the building.
The probes are made of PE 100 RC type PEHD1 and comply with the NFX 10960 standard. The Terrendis probes are entirely manufactured and tested in France at the Saint-Étienne-de-Saint-Geoirs factory.
An ecological choice
As part of its drive to reduce greenhouse gas emissions, Elydan, through its Terrendis® brand, offers products that look after the environment and combat energy wastage, with quality standards that are amongst the most exacting on the market. Pre-insulated flexible pipe solutions can be used to replace or complement older, more rigid solutions such as lagged steel pipes. Terrendis also delivers innovation with its horizontal geothermal solutions, vertical probes and geothermal baskets designed to recover heat from the ground.
Applications Terra Extrem probes are manufactured from special polymers and are closely monitored before, during and after production to check the raw materials and manufacturing
Stay up-to-date with our publications by subscribing to our quarterly newsletter.
Tenez-vous informés en souscrivant à la newsletter.
Dites nous comment vous joindre
Stay up-to-date by subscribing to our newsletter
Tell us how to reach you
Let us know how we can contact you
and we will get back to you shortly.
Let us know how we can contact you
and we will get back to you shortly.