Abstract
To meet decarbonization targets, high levels of variable renewables (principally wind) have been connected to the Northern Irish electricity grid. However, wind generation has not been matched with integration solutions, which has led to high volumes of wind energy being dispatched down due to system stability issues and local network constraints. The deployment of energy storage portfolios within constrained areas to increase the consumption of variable renewables is assessed. Within constrained areas (constraint groups), storage portfolios are optimised using practical battery cost parameters to produce a range of portfolios that could alleviate constraints. The value streams that could make the deployment economically feasible are analysed, and the paybacks for the different deployment scenarios are obtained. In managing the variability of grid-integrated renewables, conventional network upgrades are cheaper under extant market arrangements but would only remove constraints: energy storage portfolios could eliminate both constraints and curtailments within each constraint group and could benefit from additional services through equitable market arrangements. In using the storage device for four-function services, the payback period certainly falls within the expected lifespan of the device; there are significant chances of having a payback period that falls within the expected lifespan when using the device for more than one service.
| Original language | English |
|---|---|
| Article number | 106974 |
| Pages (from-to) | 1-15 |
| Number of pages | 15 |
| Journal | The Electricity Journal |
| Volume | 34 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published (in print/issue) - Jul 2021 |
Bibliographical note
Funding Information:This work was supported by the Science Foundation Ireland (SFI) and the Department for the Economy (DfE) in Northern Ireland [grant number 92160R ]. The authors acknowledge the assistance of Northern Ireland Electricity (NIE) Networks , the System Operator for Northern Ireland (SONI) and EirGrid Group who, among other supports, provided network data.
Funding Information:
This work was supported by the Science Foundation Ireland (SFI) and the Department for the Economy (DfE) in Northern Ireland [grant number 92160R]. The authors acknowledge the assistance of Northern Ireland Electricity (NIE) Networks, the System Operator for Northern Ireland (SONI) and EirGrid Group who, among other supports, provided network data.
Publisher Copyright:
© 2021 Elsevier Inc.
Keywords
- Constraints management
- Energy storage policy
- Locational storage value
- Managing variable renewable energy
- Northern Irish electricity grid
- Storage market services
