• Comparison of COP estimation methods for large-scale heat pumps used in energy planningPieper, Henrik; Ommen, Torben; Kjær Jensen, JonasEnergy2020 / art. 117994, 13 p. : ill https://doi.org/10.1016/j.energy.2020.117994
• GIS-based approach to identifying potential heat sources for heat pumps and chillers providing district heating and coolingPieper, Henrik; Lepiksaar, Kertu; Volkova, AnnaInternational Journal of Sustainable Energy Planning and Management2022 / p. 29-44 https://doi.org/10.54337/ijsepm.7021 https://www.scopus.com/sourceid/21100784443 https://www.scopus.com/record/display.uri?eid=2-s2.0-85131395849&origin=resultslist&sort=plf-f&src=s&sid=f6bea21f940b112407e8b3b930cd5a56&sot=b&sdt=b&s=TITLE-ABS-KEY%28%22GIS-based+approach+to+identifying+potential+heat+sources+for+heat+pumps+and+chillers+providing+district+heating+and+cooling+%22%29&sl=141&sessionSearchId=f6bea21f940b112407e8b3b930cd5a56
• Modelling framework for integration of large-scale heat pumps in district heating using low-temperature heat sources : A case study of Tallinn, EstoniaPieper, Henrik; Mašatin, Vladislav; Volkova, Anna; Ommen, Torben; Elmegaard, Brian; Markussen, Wiebke BrixInternational journal of sustainable energy planning and management2019 / p. 67–86 : ill https://doi.org/10.5278/ijsepm.2019.20.6 https://www.scopus.com/sourceid/21100784443 https://www.scopus.com/record/display.uri?eid=2-s2.0-85069214031&origin=inward&txGid=83136a77606b033553f3d98e609aa0fc
• Optimal design and dispatch of electrically driven heat pumps and chillers for a new development areaPieper, Henrik; Ommen, Torben; Elmegaard, Brian; Volkova, Anna; Markussen, Wiebke BrixEnvironmental and Climate Technologies2021 / p. 470−482 : ill https://doi.org/10.2478/rtuect-2020-0117 https://www.scopus.com/sourceid/21100232822 https://www.scopus.com/record/display.uri?eid=2-s2.0-85099103233&origin=inward&txGid=757e19620b8dc494852487627e3b69dd https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20CLIM%20TECHNOL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000599594700037