Geothermal heating project has promising returns

The progress of the ECW geothermal project in Wieringermeer, Netherlands, which enables eight greenhouses, with a total of 300 hectares of cultivation area, to make use of geothermal energy and save at least 15 percent gas, is now at an advanced stage.

Two doublets are being drilled to provide geotermal heat. Doublet 1 is ready to use. Doublet 2 is, at the moment, in the last phase of its drilling-operation. Meanwhile, the pipeline route from the rig to the greenhouse owners is ready. At present, welding the sub-stations to the greenhouses is in progress.This way geothermal energy can be delivered to the local greenhouses.

 

In order to accurately measure the heat transfer from the heat exchanger, Hoogendoorn has delivered special temperature sensors with very high accuracy and stability. These sensors are calibrated specifically for this project by a measurement institute and come with a certificate.

By the end of February, the first part of the control will be taken into operation. This means that the process control of Hoogendoorn can be installed and made ready to use. In early March, the first heat can be delivered.

 

The greenhouse complex will use geothermal energy as a renewable energy source, and the pump can continue to run day and night. The well provides a high return on investment. In addition, geothermal energy reduces CO₂ emissions by 70 percent when being compared to traditional heating. At least 15 percent of gas savings for glass greenhouse companies is calculated.

 

The Agriport A7 greenhouse area includes several large-scale greenhouses that grow tomatoes and peppers. The first drilling has already shown that at a depth of 2600 meters, water over 90 degrees Celsius can be won. This relatively high temperature is favorable for the heat output.