Errochty Grid Supply Point (GSP)

About the Project

SSE Renewables are looking to increase their load capacity at Tummel Power Station, driving a connection modification application from our sister company SSEN Distribution, which requires an increase in the transformer capacity at Tummel Bridge. 

It is proposed that a new site, adjacent to the existing Errochty 132kV substation, be developed to facilitate the installation of two new 90MVA 132/33kV transformers, along with appropriate 132kV and 33kV switchgear to create a new Grid Supply Point (GSP).

This new Errochty GSP will provide a 33kV connection point, to accommodate all generation and demand currently served by Tummel Bridge GSP, including the requested capacity increase for Tummel Bridge Hydro Power station.  

Why is the Project Required?

There is insufficient room at the existing Tummel Bridge GSP to accommodate fire pools to meet current standards. The site is also over sailed by 132kV overhead lines, providing a considerable construction challenge, therefore the proposal is for the new transformers to be relocated to Errochty along with construction of a new 33kV switch room for SSEN Distribution.

Direct upgrading of the two 21MVA transformers currently in place at Tummel Bridge GSP was considered as a possible option. This option was however discarded due to the lack of available space at Tummel bridge GSP for 90MVA transformers.

The site of the existing Tummel Bridge GSP will be decommissioned and cleared of SSEN Transmission assets, as part of the work.

Transformers - What they do

Transformers allow us to increase and decrease the voltage of electricity when required, this allows delivery of electricity across the transmission network to be much more manageable and efficient.

Transformers vary in size, and in some cases, can require specialist haulage equipment to transport them to site. Our Community Liaison Team will work alongside all local communities that may be affected by the delivery of a Transformer to ensure that any disruption is kept to a minimum.

Community Engagement

Throughout the life of our projects, we aim to work positively with local communities and keep people informed about what we are doing. This is particularly important when we are developing a proposal and we want to understand what local people think about our plans.

We endeavour to take the time to discuss proposals with local community councils, encourage engagement from the wider community and listen to the feedback we receive.

We will do our best to answer any questions and address issues or concerns that are raised with us.

When our project progresses into construction, we will continue working closely with the local community to ensure that our work has as little impact on the lives of those living and working in the area and as many long term positive effects as possible.

How we’re embracing artificial intelligence (AI)
We intend to use AI to assist our experienced teams in the analysis of your feedback, so we can categorise key points raised more quickly. You can learn more about how we’re utilising AI on this dedicated web page.

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