District heating systems


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Verkís offers one-stop solutions for planning, design, and construction supervision for new district heating systems as well as for modifications or upgrades of older systems or parts of systems.

Unique and extensive experience has accumulated within Verkís over the decades of geothermal project execution. This experience enables us to develop reliable and efficient district heating projects.

Iceland has been among the leading countries in the field of geothermal district heating, the first house being heated with geothermal water was as early as 1909 and the first commercial geothermal district heating system was fully developed in 1930. In 2011, the total installed heating power in Iceland amounted to 1.4 GWth and around 90% of homes use geothermal energy for space heating and heating of domestic hot water.

The design of geothermal district heating is highly dependent on the local climate, the characteristics of the geothermal resource and on the local heating market. However, the efficiency of geothermal district heating can be quite high, especially when different forms of utilization are combined in either an integrated or cascaded arrangement. Since 1962 Verkís has worked on all kinds of geothermal district heating projects, both domestically and worldwide.

Verkís' services include integral design of district heating systems, as well as upgrading or modification of older systems and design of various system elements such as:

  • Power stations
  • Storage tanks
  • District heating systems
  • Transmission pipelines
  • Distribution systems
  • House connections
  • Pumping stations
  • Peak-load equipment etc.

Sigurður Grétar Sigmarsson

  • Sigurður Grétar Sigmarsson
  • Water Resources Engineer / Marketing manager
  • Field: Infrastructure

  • sgrs@verkis.is


  • Þorleikur Jóhannesson
  • Mechanical Engineer / Marketing manager

  • Field : Energy

  • tj@verkis.is


  • Project management
  • Feasibility studies and preparation of bankable feasibility reports
  • Preliminary and detailed design
  • Planning and cost estimates
  • Environmental impact studies
  • Preparation of tender documents and material procurement
  • Supervision of construction