Project Type: Transmission reinforcement
Location: Argyll & Bute

Contact Details

Liaison Manager

Kelly Scott
Title: Community Liaison Manager
Mobile: 07443 772 946
Address: Networks
1 Waterloo Street
Glasgow
G2 6AY

Land Manager

Kenneth Morton
Title: Land Manager
Telephone: 01463 728381
Address: 10 Henderson Road, Inverness, IV1 1SN
Status: Project Refinement

About the project

The aim of this project is to reinforce Carradale Substation in order to enable renewable generation connection requests. The project elements include:

  • Replacement of two 60 MVA rated transformers replaced with two 120MVA transformers by the end of 2020
  • Replacement of two 90 MWA rated transformers replaced with 120MVA transformers by Summer 2022
  • Minor modifications  to existing equipment to accommodate the larger transformer size, including earthing, fencing, positioning and substation equipment works.
  • Associated 33kV cabling works will also be required to enable the connection of contracted renewable developments in the area.

 To undertake the works, a site compound will be required for the duration of the project. This will be implemented in advance of construction and installation works and decommissioned once all necessary works are complete. The compound will comprise of site welfare and laydown facility and will be situated in close proximity to the existing grid supply point. Enabling works are due to take place throughout the end of 2019 into early 2020. 

 

Why is the project required?

As the transmission licence holder in the north of Scotland we have a duty under Section 9 of the Electricity Act 1989 to facilitate competition in the generation and supply of electricity. We have obligations to offer non-discriminatory terms for connection to the transmission system, both for new generation and for new sources of electricity demand.

Requests have been made to National Grid by a number of wind farm developers in Argyll and Bute for grid connections in the Argyll and Kintyre area. We are responsible for providing the infrastructure required to connect the wind farms to the electricity network. In order to facilitate these connections, reinforcement of the existing transmission network, owned and operated by Scottish Hydro Electric (SHE) Transmission is required.

 

Who is Scottish and Southern Electricity Networks?

Scottish and Southern Electricity Networks is the trading name of Scottish and Southern Energy Power Distribution Limited, Scottish Hydro Electric Transmission plc, Scottish Hydro Electric Power Distribution plc and Southern Electric Power Distribution plc.

How are Transmission network upgrades paid for?

Investments in projects are made by SHE Transmission plc. Electricity transmission companies are authorised to recover the costs of such investments through 'use of system' charges which are levied by National Grid Electricity Transmission plc on generators and suppliers of electricity. Suppliers recover their costs from all electricity customers. In order to protect the interests of customers, the transmission companies have to demonstrate to the energy regulator, Ofgem (Office for Gas and Electricity Markets) that proposed investments are necessary, are efficient and are economical so that the charges which are ultimately levied on all electricity customers are justified.


This means SHE Transmission is subject to a funding mechanism established by Parliament and regulated by Ofgem. Cross subsidies between different businesses in the SSE group is not permitted.

What is the transmission network?

It’s the highest voltage electricity network in the UK – the ‘motorway network’ of the energy world. It transmits large quantities of electricity over long distances via wires carried on a system of mainly metal towers (pylons) and large substations. Transmission voltages in Scotland are 132kV, 275kV and 400kV. Larger generation schemes usually connect to the Transmission system.

The lower voltage parts of the system are called distribution networks. In Scotland, these local networks operate below 132kV whereas in England the distribution network includes 132kV. 

Carradale Community Open Day - Planning for Your Future

Representatives from SSEN Transmission were kindly invited to attend the Carradale Community Open Day by East Kintyre Community Council and attended to present plans for the Carradale Substation Project. Staff members enjoyed a warm welcome and a chance to meet with many of the local community members whilst also having a chance to find out more about upcoming development plans in East Kintyre.

Carradale Hand Out - November 2019

SSEN - Carradale Hand Out - November 2019
File Type: pdf
Published: 13 Nov 2019

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