Definition and evaluation of parameters allowing for a sustainable district heating network operation
Author
Klonk, Peter Jannis
Term
4. Term
Publication year
2013
Pages
104
Abstract
Studiet vurderer, hvordan de fjernvarmenet, som badenova WärmePlus driver i dag, klarer sig. Det identificerer de vigtigste faktorer for både økonomisk og miljømæssig performance, som også påvirker teknologiens accept i samfundet. Samtidig behandles udfordringen med faldende varmebehov, som stiller nye krav til driften. For at belyse dette analyseres interne og eksterne rammevilkår og den teknologiske status quo. Derefter modelleres driftsydelsen i udvalgte fjernvarmenet. Beregningerne vurderer, om de observerede tab i nettet er i tråd med de tekniske forhold, eller om der bør iværksættes tiltag for at forbedre omkostningseffektiviteten. En NPV-analyse (nettonutidsværdi) giver indblik i, om sådanne tiltag kan være rentable. Derudover gennemføres en investeringsanalyse for et fiktivt fjernvarmenet. En følsomhedsanalyse varierer de parametre, der har afgørende betydning for en bæredygtig drift, for at se, hvordan resultaterne påvirkes. Den afsluttende diskussion belyser, hvordan fjernvarme fortsat kan være en bredt accepteret teknologi med store potentialer for brændsels- og omkostningsbesparelser samt markant CO2-reduktion. Konklusionen er, at selv om fremtidens varmebehov kræver ændrede driftskoncepter, kan fjernvarme fortsat være et attraktivt valg.
This study evaluates how the district heating grids currently operated by badenova WärmePlus perform. It identifies the key drivers of economic and environmental performance, which also shape the technology’s public acceptance. It also addresses the challenge of declining heat demand, which creates new operational requirements. To do so, it analyzes internal and external framework conditions and describes the technological status quo. It then models the operational performance of selected district heating grids. Calculations assess whether the observed losses in the grid are consistent with technical conditions or whether measures are needed to improve cost-effectiveness. A Net Present Value (NPV) analysis provides insight into the potential profitability of such measures. Another investment analysis is carried out for a fictional district heating network. A sensitivity analysis varies parameters identified as critical to the sustainability of district heating operations to see how outcomes change. The final discussion explains how district heating can remain widely accepted while delivering significant fuel and cost savings and substantial decarbonization. It concludes that, although future heat-demand patterns will require new operating concepts, district heating can still be a preferable option.
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