SONI Evaluative Performance Framework:Performance Report 2024/25

SONI is Northern Ireland's electricity Transmission System Operator (TSO). That means we manage the electricity grid to ensure that power can flow from where it is generated to where it is needed. 

Our team of experienced, expert engineers manage the electricity grid, second-by-second, every day of the year, to ensure power can flow safely, securely and reliably to homes, farms and businesses across Northern Ireland. We don't generate or sell electricity, rather we balance consumer demand with the generation made available by the companies who produce it. 

We are licensed and regulated by the Utility Regulator, and we work together to operate the All-Island Single Electricity Market with our counterparts in the Republic of Ireland. 

At SONI, we also plan the grid to meet Northern Ireland's future energy needs. We have a pivotal role to play in supporting the implementation of Northern Ireland’s Energy Strategy as an important step on the journey to net-zero carbon emissions by 2050. 

We have now published the Evaluative Performance Framework: Performance Report for the period October 2024 - September 2025, which outlines what we have achieved across our four SONI TSO roles: 

The report considers our performance against our Forward Work Plan 2024/25 which can be found here. 

The Evaluative Performance Framework: Performance Report 2024/25 can be accessed in full below: