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I accept the conditions.
At certain Grid Supply Points (GSPs) we are trialling the
Appendix G process with the TSO. As part of this process, we provide a list (or ‘Appendix G’) of all generators
already connected or contracted to connect to a specific GSP, including size
and type. In return, the TSO provides the maximum available ‘headroom’ at GSPs.
We update Appendix G monthly so that the TSO can regularly assess the remaining
If your connection is via a GSP in the trial, we will include
a transmission access date, any identified technical requirements (i.e.
intertrip/flexible connection) and any security and liabilities you may be
liable for, in your Connection Offer.
Once you have accepted, we will submit your scheme as
part of our monthly update and share the outcome.
Please note that the Grid
Supply Points (GSPs) where SSEN have a trial Appendix G process in place are
listed below in a summary table – Part 5. To protect customers’ information,
SSEN does not publish full responses, and has redacted the summary table where
The table listed in Part 5
provides aggregate capacity in addition to any additional capacity National Grid
believes may be available (i.e. headroom) at each GSP as submitted and
confirmed by National Grid, correct at the time of publication. However, there
is no guarantee that new customers will be able to connect using the capacity
included in this summary table, as allocation of capacity is dependent upon
monthly submission and approval by National Grid
If the number of accepted connections
exceeds the available headroom, we will to submit a ‘Modification Application’
to the TSO to identify if any works are required. Customers who trigger this
process will be required to fund the TSO’s fee for undertaking their
If you are looking to
generate 10MW or more in SHEPD's area, 50MW or more in SEPD's area, then you will
need to apply to the TSO for a BELLA (Bilateral Embedded Licence Exemptible
Large Power Station Agreement) or a BEGA (Bilateral Embedded Generation
Need help applying? Read our guide for our SHEPD area.
For the most
up-to-date picture and a full background on Transmission Network plans you can
also look at the National Grid website and in particular their Transmission 10
For an overview of our Distribution Network plans you
can also look at our long term development statements - where you will be able to find a summarised
version and also details of how to obtain a full copy.
For more information on capacity, work with Active Network Management solutions
and the Low Carbon Network Fund take a look here or speak to one of our Active Solutions Team members.