Value of demand flexibility for managing wind energy constraint and curtailment

Agbonaye, O. ORCID: https://orcid.org/0000-0001-9202-4066, Keatley, P., Huang, Y., Odiase, F. O. and Hewitt, N. (2022) Value of demand flexibility for managing wind energy constraint and curtailment. Renewable Energy, 190. pp. 487-500. ISSN 0960-1481 doi: 10.1016/j.renene.2022.03.131

Abstract/Summary

The dispatch-down of excess wind energy is a growing concern especially for countries integrating high levels of variable-renewable energy. Demand flexibility presents an opportunity to move consumer loads to periods of excess wind energy, which could provide numerous values to the system. While previous research has focused on managing wind energy curtailment (a system-wide issue), much wind energy is rejected due to constraint (a local issue) and hence can only be resolved by local load on-demand. This paper provides a framework to assess the value of demand flexibility for managing wind energy constraint and curtailment. A methodology to determine the optimal number of subscribers to yield sufficient reduction in excess wind energy while ensuring reasonable cost-savings for the subscribers is developed. Analysis shows that this optimal number of subscribers could provide a 67% reduction in constraint and a 74% reduction in curtailment. Consumers can save up-to £220 per year, depending on their priority in the dispatch process. A 10-MW wind farm could earn £19,400 annually from avoided curtailments. System operators could save up-to 78% on constraint payments. The paper also assesses the network impact of flexible loads and provides a methodology for calculating the heat-pump hosting capacity of the grid.

Additional Information	** Article version: AM ** Embargo end date: 31-12-9999 ** From Elsevier via Jisc Publications Router ** Licence for AM version of this article: This article is under embargo with an end date yet to be finalised. ** Journal IDs: issn 09601481 ** History: issued 26-03-2022; accepted 24-03-2022
Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/104353
Identification Number/DOI	10.1016/j.renene.2022.03.131
Refereed	Yes
Divisions	Science > School of the Built Environment > Construction Management and Engineering
Additional Information	** Article version: AM ** Embargo end date: 31-12-9999 ** From Elsevier via Jisc Publications Router ** Licence for AM version of this article: This article is under embargo with an end date yet to be finalised. ** Journal IDs: issn 09601481 ** History: issued 26-03-2022; accepted 24-03-2022
Publisher	Elsevier
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