Heat FlexOffers: a device-independent and scalable representation of electricity-heat flexibility

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Abstract

The increasing relevance of Renewable Energy Sources (RES) makes energy flexibility an extremely important aspect, not only regarding electricity, but also for other energy vectors such as heat. Because of this, there is the need for a flexibility model which can i) provide a common representation of flexibility for different device types, ii) perform aggregation, optimization and disaggregation while scaling for long time horizons and many devices, iii) capture most of the available flexibility, and iv) support energy conversion between different vectors. Properties i)-iii) are addressed by FlexOffer (FO), a device-independent model that describes energy constraints in an approximate yet accurate way. This paper proposes an extension of FOs, Heat FlexOffers (HFOs), capable of modeling flexibility for different energy vectors such as heat and handling energy conversion, and therefore addressing iv) as well as i)-iii). HFOs can model the optimal power curve for heat pumps, and can provide constraints for continuous optimization problems while complying to the Smart Grid-Ready (SG-Ready) interface, which operates on discrete states. We show that HFOs are very accurate, being able to retain up to of total flexibility before aggregation and of it after aggregation. HFOs aggregation is scalable, as 2 · 10^6 devices can be aggregated for a 24 hours time horizon, vastly outperforming exact models as they fail to aggregate more than 500 devices.

OriginalsprogEngelsk
Titele-Energy 2023 - Proceedings of the 2023 14th ACM International Conference on Future Energy Systems
Antal sider12
ForlagAssociation for Computing Machinery
Publikationsdato20 jun. 2023
Sider374-385
ISBN (Elektronisk)9798400700323
DOI
StatusUdgivet - 20 jun. 2023
Begivenhed14th ACM International Conference on Future Energy Systems, e-Energy 2023 - Orlando, USA
Varighed: 20 jun. 202323 jun. 2023

Konference

Konference14th ACM International Conference on Future Energy Systems, e-Energy 2023
Land/OmrådeUSA
ByOrlando
Periode20/06/202323/06/2023
SponsorACM SIGEnergy
Navne-Energy 2023 - Proceedings of the 2023 14th ACM International Conference on Future Energy Systems

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