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UIOSI principle
European Union Electricity Market Glossary

 

 

 

'UIOSI' (use-it-or-sell-it) principle means the rule according to which the underlying cross zonal capacity of physical transmission rights purchased and non-nominated is automatically made available for day-ahead capacity allocation and according to which the holder of these physical transmission rights receives remuneration from the Transmission System Operators (TSOs) (Article 2(6) of the Network Code on Forward Capacity Allocation).

 

According to Article 38(7) of the Commission Regulation (EU) 2017/2195 of 23 November 2017 establishing a guideline on electricity balancing if physical transmission right holders use cross zonal capacity for the exchange of balancing capacity, the capacity shall be considered as nominated solely for the purpose of excluding it from the application of the use-it-or-sell-it (‘UIOSI’) principle.

 

 

 

Harmonised Allocation Rules (Annex I to the ACER Decision 03/2017)

 

Article 45
General principles

1. Physical Transmission Rights shall be subject to the Use it or Sell It principle.

 

2. The holder of allocated Physical Transmission Rights may nominate the Physical Transmission Rights for its physical use in accordance with Article 46. The holder of allocated Financial Transmission Rights shall not be entitled to nominate them for physical delivery.

 

3. In case the Registered Participant does not nominate its Physical Transmission Rights, the Allocation Platform shall make the underlying Cross Zonal Capacity of the non‐nominated Physical Transmission Rights available for the relevant daily allocation. The Physical Transmission Right holders who do not nominate their Physical Transmission Rights for physical use of their rights or has not reserved its Physical Transmission Rights for the balancing services shall be entitled to receive remuneration in accordance with Article 48.

 

4. Holders of Financial Transmission Rights shall be subject to the remuneration rules in accordance with Article 48.

 

5. In case the Long Term Transmission Rights holder reserves its Physical Transmission Rights for the balancing services, such Cross Zonal Capacity shall be excluded from the application of the remuneration processes as detailed in Chapter 7. The process of notification of such reservation shall be subject to the relevant rules entered into force in accordance with the applicable national regulatory regime and published by the responsible Allocation Platform.

 

 

 

 

 

 

IMG 0744

    Documentation    

 

 

 

 

Network Code on Forward Capacity Allocation, Article 2(6)

 

Network Code on Electricity Balancing (Commission Regulation (EU) 2017/2195 of 23 November 2017 establishing a guideline on electricity balancing - NC EB), Article 38(7)

 

Decision of the Agency for the Cooperation of Energy Operators (ACER) No 03/2017 of 2 October 2017 on the electricity transmission system operators’ proposal for harmonised allocation rules for long-term transmission rights

 

Harmonised allocation rules for long‐term transmission rights in accordance with Article 51 of Commission Regulation (EU) 2016/1719 of 26 September 2016 establishing a Guideline on Forward Capacity Allocation (Annex I to the ACER Decision 03/2017)

 

 

 

 

 

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Last Updated on Friday, 09 March 2018 01:22
 

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