| Founded | 2000 | 
|---|---|
| Headquarters | Belfast, United Kingdom | 
| Key people | 
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The System Operator for Northern Ireland (SONI) is the privatised electricity transmission system operator for Northern Ireland. It is owned by EirGrid. [1] SONI's licence requires that SONI is fully operationally independent from the rest of EirGrid. [2]
SONI was founded in 2000 and has been owned by EirGrid since 2009. [3] [4]
SONI is responsible for managing electricity supply and demand operationally, and is also responsible for planning relating to energy infrastructure relating to Northern Ireland. [5] SONI is regulated by the Utility Regulator. [4]
SONI is expected to be a major part of Northern Ireland's transition to net zero emissions. [6]