The year 2025 marked an important milestone in the history of HD ehf., as it was 30 years since the company installed its first deep well pump. Since then, HD has built up experience and unique expertise in the design, construction, installation, commissioning and maintenance of deep wells for geothermal systems – both in Iceland and internationally.
Over the last three decades, HD has been involved in the design, construction and operation of over 130 deep wells in Iceland, most of which are still in continuous operation. The pumps play a key role in Icelandic geothermal systems and are the backbone of district heating, power generation and energy security.
Alongside projects in Iceland, HD has also established a strong international presence, with projects in Romania, Slovakia, Turkey, France, Hungary and China. The projects have involved both standalone deep-well pump installations and complete geothermal system and district heating solutions. In some cases, pump installations have reached depths of up to 350 metres, operating at temperatures of up to 170°C.
„The experience we have built up over the last 30 years is no coincidence. It is gained through operation in real-world conditions, where the demands for safety, durability and reliability are always at the forefront., says Lýður Skúlason, Director of the Energy Division at HD.
According to the company, the 30 years of experience is not just a milestone in its history, but the foundation for continued development and innovation in deep-well systems and geothermal solutions for the future.
Lýður Skúlason, Director of the Energy Division at HD: „The experience we have built up over the last 30 years is no coincidence.“
Setting up the axle pump
Summary - HD deep-well system:
- Experience: 30 years in the design, construction and operation of deep well systems
- First deep-sea diver: Set down in 1995
- Deep-well pumps in Iceland: Around 130 pumps in operation
- Usage: Geothermal systems, district heating and energy production
- Specialisation: Design of equipment for geothermal conditions, commissioning, maintenance and performance enhancement
- Technology: Shaft pumps and integrated deep-well pumps
- Burying depth: Up to 350 metres
- Operating temperature: Up to 170°C
- Main overseas projects: Romania, Slovakia, Turkey, France, Hungary and China
