Zakeri, B;
Castagneto Gissey, G;
Dodds, PE;
Subkhankulova, D;
(2021)
Centralized vs. distributed energy storage – Benefits for residential users.
Energy
, 236
, Article 121443. 10.1016/j.energy.2021.121443.
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Abstract
Distributed energy storage is a solution for balancing variable renewable energy such as solar photovoltaic (PV). Small-scale energy storage systems can be centrally coordinated to offer different services to the grid, such as balancing and peak shaving. This paper shows how centralized and distributed coordination of residential electricity storage could affect the savings of owners of battery energy storage and solar PV. A hybrid method is applied to model the operation of solar PV-storage for a typical UK householder, linked with a whole-system power system model to account for long-term energy transitions. Based on results, electricity consumers can cut electricity bills by 28-44% using storage alone, 45-56% with stand-alone solar PV, while 82-88% with PV-battery combined. Centralized coordination of home batteries offers 10% higher benefits compared to distributed operation. Under centralized coordination, consumers without onsite energy technologies benefit almost double compared to PV-battery owners, because peak electricity prices decline in the system for all consumers. Therefore, the economic benefits of aggregation may be redistributed to incentivize prosumers with PV-battery to join such schemes, who can balance their electricity demand even without coordination. The private value of distributed energy storage declines as more storage owners join the coordination scheme.
| Type: | Article |
|---|---|
| Title: | Centralized vs. distributed energy storage – Benefits for residential users |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.energy.2021.121443 |
| Publisher version: | https://doi.org/10.1016/j.energy.2021.121443 |
| Language: | English |
| Additional information: | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Electrical energy storage; energy policy; energy system model; decentralized energy; value of energy storage; smart energy systems |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10131346 |
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