XRN 6066
Facilitating Biomethane entry into the GDN by exporting methane from the GDN into the NTS via Compression (Modification 0894A)

Summary

This Change Proposal has been raised to deliver the Central System changes required as set out within UNC Modification 0894A

This Modification 0894A seeks to introduce a new type of NTS entry point: an LDZ/NTS Delivery Point connection that enables gas to flow from a Local Distribution Zone (LDZ) into the National Transmission System (NTS). The primary purpose of this connection is to support reverse flow compression and facilitate the creation of additional LDZ Entry capacity for the purpose of facilitating biomethane entry onto the LDZ that would otherwise be constrained.

This proposal introduces a new connection type LDZ/NTS Delivery Point to enable gas to flow from a LDZ into the NTS. The purpose is to support the creation of additional LDZ Entry capacity. Capacity charges and other downstream processes are to apply at this new LDZ-NTS transfer point.

Through initial high-level assessment (ROM), the following areas have been reviewed in order to identify impacts as a result of this change. These will be assessed at a detailed level under the Change Proposal.