The French company S3 Smart Seismic Solutions will be responsible for data acquisition in the 500 km2 area between Randers and Hobro. S3 is a leader in advanced geological surveys and has extensive experience from all over Europe – including Denmark. Earlier this year (2025), they conducted a similar survey on Lolland near Rødby with great success, and they are bringing both their experience and their trucks from there to the Greenstore area.
Although the survey won’t start until around 1st of October, the plan is for S3 Smart Seismic Solutions to come to the area with a single vibration truck already this summer.
“Then we’ll invite you to a kind of open house event where anyone interested can experience the technology up close. And we will repeat this in the autumn when all the trucks and other equipment have arrived,” says Regitze Reeh, Head of Communications at Harbour Energy, which together with INEOS Energy and the Danish state’s underground company, Nordsøfonden, leads Project Greenstore.
Slight vibrations when the trucks are in action
When the trucks are in action, if you stand close to them, you will feel slight vibrations under your feet. The vibrations go into the ground and not out to the sides, so buildings and houses will not be harmed. The trucks keep their distance from houses and never enter private gardens. And if the trucks drive past old or listed buildings, the distance will be increased as a precaution, and meters will be placed to ensure that the vibrations stay below the permitted limit values.
CO2 storage to fulfil climate goals
The background to the studies is that the large area between Randers and Hobro has been identified by government geologists as an area where a CO2 storage facility could eventually be established.
“It’s important to emphasise that no decision has been made on a storage facility yet. What we are doing now is investigating whether the geology deep underground will be suitable. Only in about three years, when all the studies have been completed and analysed, will we decide whether to take the next step and apply for permission to establish an actual storage facility,” says Regitze Reeh.
Geological storage of CO2, where CO2 is places in the underground approximately 2,500 metres below the earth’s surface, can be part of the answer to how Denmark can achieve its ambitious climate goals and is therefore an important part of the Climate Act, which was adopted by a broad political majority in 2020.
“CO2 in small concentrations is good for plants, humans and animals, but too much CO2 in the atmosphere is harmful to us and our climate. Denmark has an ambition to emit 110 per cent less CO2 by 2050 than in 1990, which is why permanent storage is an important tool to complement renewable energy and other green initiatives,” says Regitze Reeh.
