Details
| Original language | English |
|---|---|
| Pages (from-to) | 955-967 |
| Number of pages | 13 |
| Journal | Energy Reports |
| Volume | 12 |
| Early online date | 9 Jul 2024 |
| Publication status | E-pub ahead of print - 9 Jul 2024 |
Abstract
Innovative dispatch strategies are essential for renewable energy systems to ensure optimal performance, cost-effectiveness, and sustainability. Optimal dispatch is often assumed to design renewable energy systems, while rule-based dispatch strategies are usually applied in the operating phase. This study examines the effects of using a different dispatch strategy in the operating phase than in the design phase. For this purpose, a mathematical optimization model is used to design an energy system with two rule-based dispatch strategies and the optimal dispatch to evaluate their effects on system costs, component dimensioning, and selection. Three case studies were used to show that, firstly, the system cost, component dimensioning, and component selection change depending on the dispatch strategies used in the design phase. Second, we show that the planned costs increase by up to 10.54 % if the system is designed with an optimal dispatch but a rule-based strategy is used in the operating phase. Third, we show that the system cost would be up to 6.07 % lower if the correct rule-based strategy had been directly applied in the design phase. Furthermore, in the multi-energy system, with additional consideration of the heat demand, it was even found that the design with optimal dispatch can lead to undersized heat supply components, resulting in unreliable heat supply when a rule-based dispatch strategy is used in the operating phase. These findings highlight the critical impact of dispatch strategies on the economic and operational feasibility of renewable energy projects, emphasizing the need for integrated planning across both phases. This is crucial for optimizing system performance and cost-effectiveness. We recommend that engineers and planners consider these insights to enhance the reliability and efficiency of renewable energy system planning.
Keywords
- Dispatch strategy selection, Multi-energy systems, System design optimization
ASJC Scopus subject areas
Sustainable Development Goals
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In: Energy Reports, Vol. 12, 12.2024, p. 955-967.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Impact of using a different dispatch strategy in the operating phase than in the design phase for decentralized energy systems
AU - Koenemann, Lukas
AU - Bensmann, Astrid
AU - Hanke-Rauschenbach, Richard
N1 - Publisher Copyright: © 2024 The Author(s)
PY - 2024/7/9
Y1 - 2024/7/9
N2 - Innovative dispatch strategies are essential for renewable energy systems to ensure optimal performance, cost-effectiveness, and sustainability. Optimal dispatch is often assumed to design renewable energy systems, while rule-based dispatch strategies are usually applied in the operating phase. This study examines the effects of using a different dispatch strategy in the operating phase than in the design phase. For this purpose, a mathematical optimization model is used to design an energy system with two rule-based dispatch strategies and the optimal dispatch to evaluate their effects on system costs, component dimensioning, and selection. Three case studies were used to show that, firstly, the system cost, component dimensioning, and component selection change depending on the dispatch strategies used in the design phase. Second, we show that the planned costs increase by up to 10.54 % if the system is designed with an optimal dispatch but a rule-based strategy is used in the operating phase. Third, we show that the system cost would be up to 6.07 % lower if the correct rule-based strategy had been directly applied in the design phase. Furthermore, in the multi-energy system, with additional consideration of the heat demand, it was even found that the design with optimal dispatch can lead to undersized heat supply components, resulting in unreliable heat supply when a rule-based dispatch strategy is used in the operating phase. These findings highlight the critical impact of dispatch strategies on the economic and operational feasibility of renewable energy projects, emphasizing the need for integrated planning across both phases. This is crucial for optimizing system performance and cost-effectiveness. We recommend that engineers and planners consider these insights to enhance the reliability and efficiency of renewable energy system planning.
AB - Innovative dispatch strategies are essential for renewable energy systems to ensure optimal performance, cost-effectiveness, and sustainability. Optimal dispatch is often assumed to design renewable energy systems, while rule-based dispatch strategies are usually applied in the operating phase. This study examines the effects of using a different dispatch strategy in the operating phase than in the design phase. For this purpose, a mathematical optimization model is used to design an energy system with two rule-based dispatch strategies and the optimal dispatch to evaluate their effects on system costs, component dimensioning, and selection. Three case studies were used to show that, firstly, the system cost, component dimensioning, and component selection change depending on the dispatch strategies used in the design phase. Second, we show that the planned costs increase by up to 10.54 % if the system is designed with an optimal dispatch but a rule-based strategy is used in the operating phase. Third, we show that the system cost would be up to 6.07 % lower if the correct rule-based strategy had been directly applied in the design phase. Furthermore, in the multi-energy system, with additional consideration of the heat demand, it was even found that the design with optimal dispatch can lead to undersized heat supply components, resulting in unreliable heat supply when a rule-based dispatch strategy is used in the operating phase. These findings highlight the critical impact of dispatch strategies on the economic and operational feasibility of renewable energy projects, emphasizing the need for integrated planning across both phases. This is crucial for optimizing system performance and cost-effectiveness. We recommend that engineers and planners consider these insights to enhance the reliability and efficiency of renewable energy system planning.
KW - Dispatch strategy selection
KW - Multi-energy systems
KW - System design optimization
UR - http://www.scopus.com/inward/record.url?scp=85198016832&partnerID=8YFLogxK
U2 - 10.1016/j.egyr.2024.06.057
DO - 10.1016/j.egyr.2024.06.057
M3 - Article
AN - SCOPUS:85198016832
VL - 12
SP - 955
EP - 967
JO - Energy Reports
JF - Energy Reports
ER -