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��� CROSSBOW is a TSO driven Horizon 2020 European project in which project partners designed and developed a set of products aimed at enabling greater integration of renewable energy sources (RES) into the power grid and thus decrease operational costs. This paper presents an innovative solution for the cross-border energy balancing market that improves the procurement of the balancing energy, which is necessary to maintain the balance between the production and consumption in the system, as well as provide a more efficient allocation of cross-zonal capacities. The presented solution is a prototype of the trading platform on which trading on the balancing energy market is performed for the product of the manual frequency restoration reserve. Every 15 minutes, an auction based on the activation optimization algorithm is performed on the trading platform. The main criterion of the algorithm is the maximization of the social welfare, which enables the lowest possible balancing energy costs. This paper presents an example of the optimization algorithm operation and social welfare calculation. Povzetek ��� Nabor produktov, ki so bili zasnovani in razviti v evropskem projektu CROSSBOW, je namenjen sistemskim operaterjem prenosnega omre��ja in omogo��a ve��jo integracijo obnovljivih virov energije (OVE) v omre��je ter ni��je stro��ke delovanja. V prispevku je predstavljena inovativna re��itev, ki predstavlja del trga s sistemskimi storitvami za zagotavljanje izravnalne energije. Potrebna je za vzdr��evanje ravnote��ja med proizvodnjo in porabo elektri��ne energije ter u��inkovitej��o izrabo ��ezmejnih prenosnih zmogljivosti (��PZ). Predstavljena re��itev je prototip trgovalne platforme, ki temelji na ��ezmejnem upravljanju energije iz spremenljivih OVE in hranilnikov energije in omogo��a trgovanje na veleprodajnem trgu. Trgovalna platforma CROSSBOW predstavlja programsko opremo, na kateri se izvaja trgovanje na izravnalnem trgu za produkt ro��ne rezerve za povrnitev frekvence. Na trgovalni platformi se vsakih 15 minut izvede avkcija na podlagi algoritma za optimizacijo aktivacij. Glavna kriterijska funkcija algoritma je optimizacija dru��bene blaginje, ki omogo��a najni��je mo��ne stro��ke izravnave. Prispevek predstavi primer delovanja optimizacijskega algoritma in izra��una dru��bene blaginje.

– CROSSBOW is a TSO driven Horizon 2020 European project in which project partners designed and developed a set of products aimed at enabling greater integration of renewable energy sources (RES) into the power grid and thus decrease operational costs. This paper presents an innovative solution for the cross-border energy balancing market that improves the procurement of the balancing energy, which is necessary to maintain the balance between the production and consumption in the system, as well as provide a more efficient allocation of cross-zonal capacities. The presented solution is a prototype of the trading platform on which trading on the balancing energy market is performed for the product of the manual frequency restoration reserve. Every 15 minutes, an auction based on the activation optimization algorithm is performed on the trading platform. The main criterion of the algorithm is the maximization of the social welfare, which enables the lowest possible balancing energy costs. This paper presents an example of the optimization algorithm operation and social welfare calculation. Povzetek – Nabor produktov, ki so bili zasnovani in razviti v evropskem projektu CROSSBOW, je namenjen sistemskim operaterjem prenosnega omrežja in omogoča večjo integracijo obnovljivih virov energije (OVE) v omrežje ter nižje stroške delovanja. V prispevku je predstavljena inovativna rešitev, ki predstavlja del trga s sistemskimi storitvami za zagotavljanje izravnalne energije. Potrebna je za vzdrževanje ravnotežja med proizvodnjo in porabo električne energije ter učinkovitejšo izrabo čezmejnih prenosnih zmogljivosti (ČPZ). Predstavljena rešitev je prototip trgovalne platforme, ki temelji na čezmejnem upravljanju energije iz spremenljivih OVE in hranilnikov energije in omogoča trgovanje na veleprodajnem trgu. Trgovalna platforma CROSSBOW predstavlja programsko opremo, na kateri se izvaja trgovanje na izravnalnem trgu za produkt ročne rezerve za povrnitev frekvence. Na trgovalni platformi se vsakih 15 minut izvede avkcija na podlagi algoritma za optimizacijo aktivacij. Glavna kriterijska funkcija algoritma je optimizacija družbene blaginje, ki omogoča najnižje možne stroške izravnave. Prispevek predstavi primer delovanja optimizacijskega algoritma in izračuna družbene blaginje. &nbsp

Ancillary services are vital for ensuring a safe and uninterrupted operation of the power grid. Transmission System Operator is responsible for covering the losses in the power grid and for procuring appropriate levels of ancillary services. Ancillary services include frequency control, which can be divided into Frequency Containment Reserves, Frequency Restoration Reserves and Replacement Reserves. European project CROSSBOW, involves countries and Transmission System Operators from South-Eastern Europe and focuses on increasing grid flexibility and robustness by enabling better control of cross-border balancing energy at interconnection points. Accordingly, we propose an innovative approach to offering system services at a regional level. Povzetek Sistemske storitve so nujno potrebne za zagotavljanje varnega in neprekinjenega obratovanja elektroenergetskega sistema. Sistemski operater prenosnega omrežja je zadolžen za pokrivanje izgub v elektroenergetskem sistemu in ustrezen nivo sistemskih storitev. Med sistemske storitve sodi regulacija frekvence, ki se po novem imenovanju deli na Rezervo za vzdrževanje frekvence, Avtomatska rezerva za povrnitev frekvence, Ročna rezerva za povrnitev frekvence in Rezerva za nadomestitev. Evropski projekt CROSSBOW, v katerem sodelujejo države in sistemski operaterji iz jugovzhodne Evrope, temelji na možnostih povečanja prožnosti in robustnosti omrežja, z omogočanjem boljšega nadzora čezmejnih prenosov energije. V skladu s tem predlagamo inovativen pristop ponujanja sistemskih storitev na regionalnem nivoju. &nbsp

Ancillary services are vital for ensuring a safe and uninterrupted operation of the power grid. Transmission System Operator is responsible for covering the losses in the power grid and for procuring appropriate levels of ancillary services. Ancillary services include frequency control, which can be divided into Frequency Containment Reserves, Frequency Restoration Reserves and Replacement Reserves. European project CROSSBOW, involves countries and Transmission System Operators from South-Eastern Europe and focuses on increasing grid flexibility and robustness by enabling better control of cross-border balancing energy at interconnection points. Accordingly, we propose an innovative approach to offering system services at a regional level. Povzetek Sistemske storitve so nujno potrebne za zagotavljanje varnega in neprekinjenega obratovanja elektroenergetskega sistema. Sistemski operater prenosnega omre��ja je zadol��en za pokrivanje izgub v elektroenergetskem sistemu in ustrezen nivo sistemskih storitev. Med sistemske storitve sodi regulacija frekvence, ki se po novem imenovanju deli na Rezervo za vzdr��evanje frekvence, Avtomatska rezerva za povrnitev frekvence, Ro��na rezerva za povrnitev frekvence in Rezerva za nadomestitev. Evropski projekt CROSSBOW, v katerem sodelujejo dr��ave in sistemski operaterji iz jugovzhodne Evrope, temelji na mo��nostih pove��anja pro��nosti in robustnosti omre��ja, z omogo��anjem bolj��ega nadzora ��ezmejnih prenosov energije. V skladu s tem predlagamo inovativen pristop ponujanja sistemskih storitev na regionalnem nivoju.