Geothermal well with multiple drains to help clean up district heating networks.
Most of the energy used in buildings goes to heating them. So, getting rid of carbon from energy sources is a must if we want to cut down on emissions. Geothermal district heating is when heat from geothermal sources is sent through a network of pipes to a group of buildings. The main benefits of geothermal sources are that they provide clean, local energy that can be used in many different ways. Even though there are a lot of sedimentary geothermal reservoirs that can be used, there are sometimes differences in geological properties that make it hard to get work done. The goal is then to find the best way to drain the area and increase the amount of energy taken out of the ground as a whole. This technology improves the efficiency of a geothermal solution by adding more drains.
Positive facts about Multidrains geothermal wells
Around 80% more efficient compared to a conventional solution
Saving 640,000 tons of CO2 over 30 years exploitation period compared to a fossil energy solution
Considering +20% of drilling costs, the productivity is increased drastically
Only 2 innovative wells drilled instead of 4 conventional wells needed to reach the flowrates expected to cover network needs, means around €8 million saved for a project
Use geothermal source means stable heat price over time
Multidrains geothermal wells website : https://engie-solutions.com/en/news/veligeo-velizy-villacoublay