Transmission interface arrangements (TIA)
The TIA outlines the terms and arrangements for interactions between SONI and NIE Networks.
TIA document
SONI is the independent Transmission System Operator for Northern Ireland. We work closely with NIE Networks who operate the distribution system.
As the TSO, we are required to plan and operate the transmission system in line with transmission interface arrangements (TIA). This is a condition of our transmission licence.
The TIA sets out how our commercial and operational interactions with NIE Networks. It facilitates the efficient operation, planning, development, construction and maintenance of the transmission system.
The TIA amendment register
We are required to establish and maintain an amendment register which sets out:
- Details of proposed amendments to the TIA
- The current status and progress of each proposed amendment
- The current status and progress of each approved amendment
- Other matters as the parties may consider appropriate