Feasibility heatnetwork Oudenaarde

Maagdendale site
City of Oudenaarde
2025
Feasibility study heat network
Sustainable transition of a historic site

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The Maagdendale site in Oudenaarde includes 7 historic buildings, such as an abbey and a chapel. Today, heating relies on individual gas boilers, but the city seeks change. EXTRAQT, together with Voxergy and VDB Engineering, conducted a feasibility study on energy renovation and sustainable heating. The goal was to identify technical solutions that fit the site’s historic character.

Sustainable transition of a historic site

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The Maagdendale site in Oudenaarde includes 7 historic buildings, such as an abbey and a chapel. Today, heating relies on individual gas boilers, but the city seeks change. EXTRAQT, together with Voxergy and VDB Engineering, conducted a feasibility study on energy renovation and sustainable heating. The goal was to identify technical solutions that fit the site’s historic character.

Heat demand

727 MWh/year

CO₂-reductie

100 tons/year

Aquathermal source power

180 kW

Illustration of the use of a closed aquathermal system at a castle by a lake
Collective aquathermal energy installation

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The study shows that a collective heating system for this site is technically feasible, with aquathermal energy as the most suitable solution. Analysis indicates that a heating network with a temperature of 55 °C is the most cost-efficient approach, requiring no major renovations for most buildings. Energy renovations, carried out with respect for the heritage value, can achieve up to 28% energy savings.

Financially, the collective system represents a viable investment with a modest but healthy return and manageable risks. It also outperforms individual air-to-water heat pump solutions, especially in light of the strict heritage requirements.

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The study shows that a collective heating system for this site is technically feasible, with aquathermal energy as the most suitable solution. Analysis indicates that a heating network with a temperature of 55 °C is the most cost-efficient approach, requiring no major renovations for most buildings. Energy renovations, carried out with respect for the heritage value, can achieve up to 28% energy savings.

Financially, the collective system represents a viable investment with a modest but healthy return and manageable risks. It also outperforms individual air-to-water heat pump solutions, especially in light of the strict heritage requirements.

Feasibility heatnetwork Oudenaarde

This project is financially supported by

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Our partners in this project

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