Abstract

Addressing climate change with the rising global energy usage necessitates electricity sector decarbonization by rapidly moving toward flexible and efficient off-grid renewable energy systems (RESs). This paper analyzes the wind and solar micro-grids, with batteries and pumped hydro storage for a robust off-grid RES techno-economic operation, while considering diverse multi-objective optimization cases. This research has considered the RES variable operational losses in the developed methodology and relations between different indicators are evaluated, revealing a basic understanding between them. The results reveal that the reliability index is inversely related to the oversupply index, while directly related to the system self-sufficiency index. The cost of energy is more sensitive to technical indicators rather than the storage cost and so can be used as a primary monetary index. Energy and cost balance analysis showed that 16%-20% of the used energy was drained in RES operational losses, which were usually ignored in previous studies.

Keywords

Earth sciences, energy engineering, energy policy, energy systems

Document Type

Journal Article

Date of Publication

7-23-2021

Volume

24

Issue

7

PubMed ID

34308284

Publication Title

iScience

Publisher

Elsevier

School

School of Engineering

RAS ID

39724

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Comments

Javed, M. S., Ma, T., Mousavi, N., Ahmed, S., Lund, H., Yang, H., & Dai, Y. (2021). Quantifying techno-economic indicators' impact on isolated renewable energy systems. Iscience, 24(7), 102730. https://doi.org/10.1016/j.isci.2021.102730

First Page

102730

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Link to publisher version (DOI)

10.1016/j.isci.2021.102730