Under the 30 tonnes of the truck, a plate sticks to the ground. The heavy weight lifts, the ground begins to vibrate, 48 seconds. The plate goes back up, the truck restarts in the night from a deserted street in Meudon, in Hauts-de-Seine. Ten meters further on, he stops and makes the ground shake again.
Many Ile-de-France residents have seen - or heard - them passing by in recent weeks: three vibrator trucks are crisscrossing the south and west of Île-de-France until mid-April, over 280 kilometers, as part of the campaign Geoscan. Launched by the region, Ademe and the Geological and Mining Research Bureau (BRGM), this 3.5 million euro project aims to identify the potential of the Ile-de-France subsoil in terms of deep geothermal energy.
Read also Surface geothermal energy, a home heating system that is still little exploited
A technique which consists of drawing hot water from the depths to supply urban heating networks, whether collective buildings, industries or even swimming pools, before returning it underground.
If so-called “
surface
” geothermal energy
,
which…
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