Scottish and Southern Electricity Networks
SSEN Future Networks Team
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LCN Fund Tier 1
Energy Storage and Demand Response
This Project involves installing a 1MWe connected battery at the Lerwick Power Station on Shetland and will provide learning regarding the operation of the battery and its integration with local Demand Side Response to remove station peaks providing additional demand capacity (in a similar way to managing a network load constraint).
This project also secured funding from the Department of Energy and Climate Change (DECC) Smart Grid Demonstration Capital Grant Programme. The aim is to install a grid scale energy storage device on the Shetland network with a power conversion system and local controller providing a choice of modes of operation. A Sodium Sulphur (NaS) battery system was selected through a tender process.
The Scottish and Southern Energy Power Distribution DECC funding award requires delivery of the 1MWe battery by end March 2011, as a result procurement is well underway, additional functionality of this battery will feature in our Tier 2 bid. This Tier 1 bid secures the initial learning from the installation and operation of the battery and integration with local Demand Side Response to remove station peaks providing additional Demand capacity (in a similar way to managing a network load constraint).
Scottish and Southern Energy Power Distribution's Tier 2 element subsequently deals with the optimisation of potentially simultaneous modes of operation including:
- Renewable Generation constraint avoidance
- Power station operation optimisation (to reduce fuel consumption)
- Stability control including SVC functions
- Provision of ancillary services. This approach maximises the learning and provides the greatest leverage funding from Scottish and Southern Energy, DECC funding and the LCNF.