Impact of operational details and temporal representations on investment planning in energy systems dominated by wind and solar

Niina Helistö, Juha Kiviluoma, Germán Morales-España, Ciara O'Dwyer

Research output: Contribution to journalArticleScientific

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Abstract

Planning of future energy systems with higher prevalence of wind and solar energy requires a careful representation of the temporal and operational characteristics of the system. This study aims to identify the aspects that should be considered when selecting the representation for a particular system. To demonstrate the impacts and sensitivities of different temporal and operational details, we carry out case studies on two test systems. The modelling is implemented within the Backbone energy systems modelling framework, with soft-linked investment and operational models. The results show that the tested temporal and operational representations have different benefits and weaknesses in different systems. The findings provide general guidelines on what details should be considered depending on the specific characteristics of the system under study. For example, some strategies can better capture long-term storage needs and some others are more suitable for short-term storage modelling. Likewise, solar-dominated and wind-dominated systems differ in their methodological requirements. Furthermore, the interactions between energy sectors and the operational limits of the technologies for sector coupling should be correctly captured, as they significantly impact on the relative value of different technologies and their flexibility in the energy system. Finally, we recommend testing several temporal and technical representations for each particular system in order to ensure the feasibility of the selected method the for that case.
Original languageEnglish
JournalNot yet accepted into a journal
Publication statusSubmitted - 2020
MoE publication typeNot Eligible

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