# 2010 Vancouver
Geothermal energy is broadly recognised as an environmentally friendly, cost-effective and virtually inexhaustive heat source, as well as an increasingly credible alternative to traditional heating solutions. Only a small portion of the potential energy is actually used. The fastest growing segment, with very promising, forward-looking perspectives is the geothermal heat pump sector, using shallow energy. Plastic pipes used for heat collection are playing a key role in various types of installations. However, the right choice of high-performance PEHD and PEX materials that fulfil the tough installation and operating requirements needs to be made to ensure durability and long-term performance of the systems.