Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids
While an area-wide implementation of electric vehicles (EVs) and electric heat pumps (HPs) will contribute to a decarbonization of the energy system, they represent new challenges for existing low-voltage (LV) power grids. Hence, this study investigates potential grid congestions on the basis of thr...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/19/5083 |
| _version_ | 1797416643150741504 |
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| author | Bernd Thormann Thomas Kienberger |
| author_facet | Bernd Thormann Thomas Kienberger |
| author_sort | Bernd Thormann |
| collection | DOAJ |
| description | While an area-wide implementation of electric vehicles (EVs) and electric heat pumps (HPs) will contribute to a decarbonization of the energy system, they represent new challenges for existing low-voltage (LV) power grids. Hence, this study investigates potential grid congestions on the basis of three contrasting load approaches applied to four different grid regions. Within the three load approaches, temporal characteristics of various grid customer classes (EVs, HPs, households etc.) are derived from highly resolved realistic load profiles. In accordance with classic grid planning, firstly a static load approach is analyzed by applying the modeled coincidence for each consumer class individually. Secondly, this static approach is modified by including combined coincidence factors, taking temporal consumer class interactions into account. Finally, both static load approaches are compared with detailed annual time series analyses by means of load flow simulations using real-life LV grid data. The evaluation of inadmissible voltage characteristics and thermal congestions identifies future grid extension needs depending on the considered grid region. In addition, the variation of the applied load approach highlights the need to consider consumer-specific temporal behavior. In fact, by neglecting temporal interactions between conventional and future grid customers, the classic grid planning approach overestimates future grid extension needs. To counteract an oversizing of future grid structures, this paper presents a combined consideration of EVs’ and HPs’ coincidence as well as resulting grid consequences on the LV level. |
| first_indexed | 2024-03-09T06:06:10Z |
| format | Article |
| id | doaj.art-45ae274bf90048aaae54898ba7dccd10 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T06:06:10Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-45ae274bf90048aaae54898ba7dccd102023-12-03T12:02:54ZengMDPI AGEnergies1996-10732020-09-011319508310.3390/en13195083Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage GridsBernd Thormann0Thomas Kienberger1Chair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversitaet Leoben, A-8700 Leoben, AustriaChair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversitaet Leoben, A-8700 Leoben, AustriaWhile an area-wide implementation of electric vehicles (EVs) and electric heat pumps (HPs) will contribute to a decarbonization of the energy system, they represent new challenges for existing low-voltage (LV) power grids. Hence, this study investigates potential grid congestions on the basis of three contrasting load approaches applied to four different grid regions. Within the three load approaches, temporal characteristics of various grid customer classes (EVs, HPs, households etc.) are derived from highly resolved realistic load profiles. In accordance with classic grid planning, firstly a static load approach is analyzed by applying the modeled coincidence for each consumer class individually. Secondly, this static approach is modified by including combined coincidence factors, taking temporal consumer class interactions into account. Finally, both static load approaches are compared with detailed annual time series analyses by means of load flow simulations using real-life LV grid data. The evaluation of inadmissible voltage characteristics and thermal congestions identifies future grid extension needs depending on the considered grid region. In addition, the variation of the applied load approach highlights the need to consider consumer-specific temporal behavior. In fact, by neglecting temporal interactions between conventional and future grid customers, the classic grid planning approach overestimates future grid extension needs. To counteract an oversizing of future grid structures, this paper presents a combined consideration of EVs’ and HPs’ coincidence as well as resulting grid consequences on the LV level.https://www.mdpi.com/1996-1073/13/19/5083low-voltage levelelectric vehicleheat pumpload approachgrid region |
| spellingShingle | Bernd Thormann Thomas Kienberger Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids Energies low-voltage level electric vehicle heat pump load approach grid region |
| title | Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids |
| title_full | Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids |
| title_fullStr | Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids |
| title_full_unstemmed | Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids |
| title_short | Evaluation of Grid Capacities for Integrating Future E-Mobility and Heat Pumps into Low-Voltage Grids |
| title_sort | evaluation of grid capacities for integrating future e mobility and heat pumps into low voltage grids |
| topic | low-voltage level electric vehicle heat pump load approach grid region |
| url | https://www.mdpi.com/1996-1073/13/19/5083 |
| work_keys_str_mv | AT berndthormann evaluationofgridcapacitiesforintegratingfutureemobilityandheatpumpsintolowvoltagegrids AT thomaskienberger evaluationofgridcapacitiesforintegratingfutureemobilityandheatpumpsintolowvoltagegrids |