Techno-economic analysis of a transmission line between an island grid and a mainland grid

Authors : Barış Çağrı Dinç, Murat Fahrioglu, Canraş Batunlu

Pages : 186-198

Doi:10.30521/jes.838784

View : 16 | Download : 6

Publication Date : 2021-09-30

Article Type : Research

Abstract :Islands are commonly isolated electricity systems that rely heavily on imported fossil fuels. Interconnection with a mainland power system is a solution to offset the exposure to volatile fuel prices and increase the stability of the island grid. This paper presents and discusses the main results of a case study aiming to see the economic effects of a 200 MW HVDC connection between an island grid and a mainland grid. The purpose was to see how much of the island’s oil price scenarios can be overcome with this new interconnector. For this research, North Cyprus grid was modeled in MATPOWER software to do optimal power flow analysis. The results are used to compare fuel-based generation costs to importing electricity from the mainland. The analysis shows that this interconnector decreases the island’s generation costs by 28% to 78%, and with the possible renewable installations, this reduction can be increased further.
Keywords : Island grid, HVDC, Techno-economic analysis, Transmission line