The Rijswijk Centre for Sustainable Geo-energy (RCSG) is located in this wing. The RCSG is a unique and advanced testing centre for businesses active in the geothermal energy sector. There are only a handful of similar testing centres in the world. The centre is accessible to all businesses wanting to test or experiment with new drilling techniques and materials for the generation of geothermal energy or for other sustainable applications. The centre consists of 20 installations that cover the entire spectrum of underground drilling conditions, including a 400-metre-deep well, 300 and 400-tonne hydraulic presses and pressure tanks capable of accommodating up to 1,000 bar.