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Energy Flexibility through the Integrated Energy Supply System in Buildings: A Case Study in Sweden
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden; Mälardalen University, Sweden.
Mälardalen University, Sweden.
RISE - Research Institutes of Sweden, Safety and Transport, Electronics.ORCID iD: 0000-0002-1226-0788
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2018 (English)In: Energy Procedia, 2018, p. 564-569Conference paper, Published paper (Refereed)
Abstract [en]

The increasing penetration level of renewable energies requires more flexibility measures at the consumption side. Flexible energy prices have been placed by energy providers to promote flexibility measures from energy users. However, because of the current energy supply system in buildings, these flexible energy prices haven't been fully taken advantage of. This study focuses on the integrated energy supply system in buildings. A Swedish office building is used as the case study. The integrated energy supply system is built by installing new components, including battery, heat pump and electrical heater, and hot water tank. Mixed Integer Linear Programming (MILP) problems are solved to determine the optimal component capacities and operation profiles. The results indicate that all the studied system configurations achieve lower net present cost (NPC) than the current system. It suggests that the integrated energy supply system can take advantage of the flexible energy prices and lower the overall energy cost in the building. Among the studied configurations, the combination of air source heat pump (ASHP) and electrical heater (EH) has the lowest investment cost. This combination also has the lowest NPC except in the scenario with low borehole cost. © 2018 The Authors. Published by Elsevier Ltd.

Place, publisher, year, edition, pages
2018. p. 564-569
Keywords [en]
District Heating, Energy Flexibility, Heat Pump, MILP, Photovoltaic, Air source heat pumps, Costs, Electric appliances, Energy resources, Integer programming, Office buildings, Pumps, Water tanks, Energy supply system, Flexibility measures, Heat pumps, Mixed integer linear programming (MILP), System configurations, Investments
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-36612DOI: 10.1016/j.egypro.2018.04.082Scopus ID: 2-s2.0-85056561913OAI: oai:DiVA.org:ri-36612DiVA, id: diva2:1270960
Conference
2017 Applied Energy Symposium and Forum, REM 2017, 18 October 2017 through 20 October 2017
Available from: 2018-12-14 Created: 2018-12-14 Last updated: 2018-12-14Bibliographically approved

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Lundblad, Anders Olof

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