Geothermal energy is the energy obtained by harnessing the heat stored under the earth surface. It is a clean and sustainable energy that eliminates dependence on fossil fuels, contributing to the reduction of CO2 emissions. Geothermal systems are made up of a heat pump and a collection system consisting of vertical or horizontal probes and a carrier fluid that absorbs natural heat from the ground. Collection systems: vertical and horizontal probes. The PE100 polyethylene pipes for the geothermal probes are manufactured in Spain by CAUDAL and conform to the UNE-EN 12201 standards. They are verified and tested in our qualified laboratory with ENAC-certified and calibrated equipment integrated into our quality and environmentally-friendly management system under ISO standards. ISO 9001:2015 AENOR-IQNET and ISO 14001:2015 AENOR-IQNET.