Naslov
Analysis of the Croatian Model for Settlement of Electricity Imbalances and its possible Improvements

Autori
Štritof, Ivona ; Skok, Minea

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
Proceedings of the CIGRE Session 2014 / - , 2014, 1-8

Skup
CIGRE Session 2014

Mjesto i datum
Pariz, Francuska, 24.08.2014. - 29.08.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Electricity Market – Balancing - Settlement

Sažetak
The paper analyses the current Croatian model for settlement of electricity imbalances. A term “model” encompasses a whole balancing process, provision and procurement of balancing services (ancillary services for reserves and balancing energy) on one side and a clearing of balance responsible parties (BRP) on the other side. Due to lack of organized wholesale market, including balancing market, procurement of balancing services is done on bilateral annual basis. Balancing services are contracted between TSO and a single balancing service provider. Suppliers are the only BRPs participating in the imbalance settlement. Retail market is dominated by two incumbent suppliers, a supplier under regulated regime in charge of households and customers without a supplier (its market share is roughly 51 %) and a market supplier. First mentioned does not participate in the imbalance settlement which distorts the mechanism. Customers without interval meters are settled using characteristic load profiles (CLP). The analysis of the current model and its practical implementation show many shortcomings. Recommendations for their improvements could be summed up as follows: − Procurement of balancing services should be market based or defined by a publically available methodology, resulting thus in transparent procurement costs of ancillary services and in imbalance prices calculated based on the TSO’s procurement costs, − A concept of balance groups should be introduced, − The system of RES imbalance settlement should be improved, bringing it closer to approach used for other BRPs (imbalance charges based on imbalance volumes), − Quality of CLPs and their parameters should be improved, − The second clearing should be introduced including into calculations meter readings of profiled customers. The paper develops a new model incorporating the aforementioned recommendations. A proposal of a new model takes into consideration a draft of ENTSO-E Network Code on Electricity Balancing and ACER Framework Guidelines on Electricity Balancing as well as up to date EU practice.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA