Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/6D23A81F-EBB8-46A3-A924-5A6E064EB4D1 | - |
| Αναγνωριστικό | https://doi.org/10.3390/en13010064 | - |
| Αναγνωριστικό | https://www.mdpi.com/1996-1073/13/1/64 | - |
| Γλώσσα | en | - |
| Μέγεθος | 15 pages | en |
| Τίτλος | Improving reliability indices of the autonomous power system of Crete Island utilizing extended photovoltaic installations | en |
| Δημιουργός | Fiorentzis Konstantinos | en |
| Δημιουργός | Φιορεντζης Κωνσταντινος | el |
| Δημιουργός | Tsikalakis Antonios G. | en |
| Δημιουργός | Karapidakis Emmanouel S. | en |
| Δημιουργός | Katsigiannis Ioannis | en |
| Δημιουργός | Κατσιγιαννης Ιωαννης | el |
| Δημιουργός | Stavrakakis Georgios | en |
| Δημιουργός | Σταυρακακης Γεωργιος | el |
| Εκδότης | MDPI | en |
| Περίληψη | Renewable energy sources (RES) have significantly helped in meeting the electricity demand of Crete, with their share in the energy balance to account for about 25% of the annual electricity production for the past five years. The contribution of photovoltaics (PVs) has been especially significant for the past three years, offering 10% in the peak demand, during summertime. This paper investigates what the capacity credit would be, i.e., up to what extent increasing existing PV capacity by about 20% can be considered as certain, to avoid installing thermal power units. In order to do so, probabilistic techniques have been applied to quantify the load that the installed thermal units in the Cretan power system should be able to meet at any time. In addition, the effect of the additional PV capacity to power system’s reliability is evaluated, introducing a new reliability index and taking into account actual data, regarding the planned and unplanned thermal units’ maintenance. Two scenarios have been examined using actual hourly data for load demand, PV, and wind production from the island power system of Crete. In the first scenario, the calculations were carried out considering the operation of the Cretan power system in its current state, while in the second scenario it was assumed that the PV production has been increased by 20%. Furthermore, we examine how the maximum value of capacity credit can be achieved as the PV installations are extended. In this regard, there is an upper limit of the additional PV capacity that leads to the maximum value of capacity credit. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2020-03-31 | - |
| Ημερομηνία Δημοσίευσης | 2020 | - |
| Θεματική Κατηγορία | Capacity credit | en |
| Θεματική Κατηγορία | Island power systems | en |
| Θεματική Κατηγορία | Photovoltaics | en |
| Θεματική Κατηγορία | Probabilistic analysis | en |
| Θεματική Κατηγορία | Reliability | en |
| Βιβλιογραφική Αναφορά | K. Fiorentzis, A. Tsikalakis, E. Karapidakis, Y. Katsigiannis and G. Stavrakakis, "Improving reliability indices of the autonomous power system of Crete Island utilizing extended photovoltaic installations," Energies, vol. 13, no. 1, Jan. 2020. doi: 10.3390/en13010064 | el |
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