Economic feasibility of data center waste-heat integration into district heating: What does it require?

Juan Jerez Monsalves*, Claire Bergaentzlé, Dogan Keles

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Data centers can support the energy transition by recovering their waste heat for their own heating uses or supplying it into district heating networks. However, despite the benefits and technological maturity, few such systems exist today, suggesting conditions undermining their practical implementation. This study evaluates, using the Danish context, how heat sale revenues from district heating affect the feasibility of waste-heat recovery for three different-sized data centers under selected conditions. The data center is modelled as a system comprising free-cooling, chillers, and heat pumps. Its operation is optimized to minimize cooling costs, including heat sales, considering techno-economic parameters, environmental conditions, the availability of district heating to accept the heat, and heat sale price. The results suggest that waste-heat recovery requires highly favorable conditions to be viable, including priority access to the district heating system, with up to 13% cost savings at the highest heat prices allowed by current regulation.

Original languageEnglish
Title of host publicationProceeedings of the 2023 19th International Conference on the European Energy Market (EEM)
Number of pages6
Publication date2023
DOIs
Publication statusPublished - 2023
Event19th International Conference on the European Energy Market - Lappeenranta, Finland
Duration: 6 Jun 20238 Jun 2023
Conference number: 19

Conference

Conference19th International Conference on the European Energy Market
Number19
Country/TerritoryFinland
CityLappeenranta
Period06/06/202308/06/2023
SeriesInternational Conference on the European Energy Market, EEM
ISSN2165-4077

Keywords

  • Data centers
  • District Heating
  • Waste heat

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