Geothermal greenhouse project makes steady progress in Monster, Netherlands
Construction work of Aardwarmte Polanen in Monster, Netherlands (source: Aardwarmte Polanen)
Carlo Cariaga
29 Apr 2025
Construction and installation of surface facilities for a geothermal horticulture project by Aardwarmte Polanen is ongoing in Monster, Netherlands.
Construction of the surface facility for a geothermal heating project in Monster in the province of South Holland in the Netherlands is in full swing. If everything goes according to plan, the testing of the system will start at the end of 2025 and 23 greenhouse horticulture businesses will soon be supplied with geothermal heating.
The Aardwarmte Polanen project, first launched in 2022, envisions a geothermal heating network supplying several horticulture facilities in the village of Monster. The heat will come from two geothermal wells each drilled to a depth of 2300 meters back in 2023. Testing of the doublet indicated that water at 85 °C can be extracted from the resource at a sufficient flowrate to support the project.
Installation and construction of the surface equipment for the Aardwarmte Polanen project will proceed for the next several months. After the summer, work will start on the building that will house the filters, pumps, and heat exchangers.
As part of Warmtesysteem Westland, a larger regional heat network, the Aardwarmte Polanen project will be part of a system that allows for different heat clusters to trade heat from geothermal sources. This makes it possible to temporarily take more or less heat, such as during a crop change. In this way, heat supply and heat demand can be coordinated 24/7.
Source: Aardwarmte Polanen
