Toggle Main Menu Toggle Search

Open Access padlockePrints

Flexibility from multi-vector systems: Beyond low-voltage network modelling

Lookup NU author(s): Dr Matthew Deakin, Professor Sara Walker, Professor Phil Taylor



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2020 Institution of Engineering and Technology. All rights reserved. The relative size of energy demands from domestic water and space heating make them ideally suited for providing demand-side flexibility services. However, co-ordinated operation of flexible devices results in coincident changes in demand on adjacent low-voltage (LV) networks, and can therefore lead to a coupling of voltages between circuits. In this work, water heating temporal flexibility and space heating vector flexibility (from hybrid gas–electric heat pumps) are enabled across a network service area, and the voltage changes measured using the proposed ‘flexibility voltage modulation’ index. It is demonstrated that integrated medium-voltage (MV)–LV modelling increases the mean voltage modulation threefold and the variance of the voltage modulation by 70% when compared to results from an isolated LV model. The work, therefore, demonstrates the crucial role of MV networks in LV circuit simulation.

Publication metadata

Author(s): Deakin M, Walker S, Taylor PC

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: CIRED 2020 Berlin Workshop (CIRED 2020)

Year of Conference: 2020

Pages: 174-177

Online publication date: 22/09/2020

Acceptance date: 02/04/2018

Date deposited: 04/11/2021

ISSN: 2515-0855

Publisher: IET


DOI: 10.1049/oap-cired.2021.0299