2025 June - SOEF Markets - FASS - System Services Code Plain English Version Second Draft

Please find the System Services Code Plain English Version (PEV) Second Draft. As per the first PEV of the System Services Code, this has been developed through engagement with the System Services Code Industry Working Group and is based on interpretation of FASS related SEM Committee decisions published to date.

2025 June - SOEF Markets - FASS - DS3 System Services Tariffs to FASS ('The Gap') Recommendations Paper

​​This paper sets out the TSOs' recommendations to the SEMC regarding the DS3 System Services Tariffs to FASS ('The Gap'), reflecting the feedback received on the Consultation Paper through stakeholders' written responses and input to the industry workshop. This paper also summarises that feedback and provides the TSOs' commentary in response.

​2025 March - SOEF Markets - FASS - All-Island System Services Supplier Charge Recommendations Paper

This paper sets out the TSOs’ recommendations to the SEMC regarding the implementation of the FASS Charge, reflecting the feedback received on the Consultation Paper through stakeholders’ written responses and input to the industry workshop. This paper also summarises that feedback and provides the TSOs’ commentary in response.

2025 April - SOEF Markets - FASS - Volume Forecasting Methodology Recommendations Paper

This paper sets out the TSOs’ recommendations to the SEMC regarding the DASSA Volume Forecasting Methodology, reflecting the feedback received on the Consultation Paper through stakeholders’ written responses and input to the industry workshop. This paper also summarises that feedback and provides the TSOs’ commentary in response.