| Title | Geothermal Energy Use in Norway. Country Update for 2015-2019 |
|---|---|
| Authors | Kirsti MIDTTØMME, Randi K. RAMSTAD, Karoline H. KVALSVIK, Maria JUSTO-ALONSO |
| Year | 2020 |
| Conference | World Geothermal Congress |
| Keywords | Norway, country update, BTES, GHP, direct use, |
| Abstract | The Norwegian estimated total direct use of geothermal energy is 3.0 TWh. This represents 30 % growth since the 2015 WGC report. Most of the geothermal energy systems are geothermal heat pump installations extracting or storing heat by BHEs in crystalline rocks. Though Norway is a low- emission society because of the historical predominance of hydropower, energy efficiency and demand side management to reduce peak load are focused areas (IEA 2017). Innovative integrated passive (and plus) energy solutions have been demonstrated the last years combining borehole thermal energy storage (BTES) with solar or other local energy sources. There is also a trend towards larger neighborhood energy systems favoring BTES for harmonizing energy demands. A high temperature BTES similar to the Canadian Drake Landing BTES is constructed at Fjell skole in Drammen. This installation will be set in operation this year. There is also a trend of using deeper BHEs. A de-ice and snow melting installation comprising two 1500 m deep BHEs has been set in operation in Nov 2019 at Oslo airport Gardermoen. The wells show good results through continuous operation and further BHEs will follow at this location as well as other project will follow. Reference IEA 2017, Energy Policies of IEA Countries. Norway 2017 Review, International Energy Agency |