Nearshore Wave Energy Resource Assessment for Off-Grid Islands: A Case Study in Cuyo Island, Palawan, Philippines

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Jonathan C. Pacaldo, Princess Hope T. Bilgera, Michael Lochinvar S. Abundo

2022 Energies Vol. 15 Issue 22 Article Cited by 9 Quartile

Abstract

Electrifying off-grid and isolated islands in the Philippines remains one of the challenges that hinders community development, and one of the solutions seen to ensure energy security, energy access and promote a low-carbon future is the use of renewable energy sources. This study determines the nearshore wave energy resource during monsoon seasons in Cuyo Island using a 40-year wave hindcast and 8-year on-site wind speed data as inputs to develop a high-resolution wave energy model using SWAN and assesses its annual energy production through matching with wave energy devices. The results show that the average significant wave height (Hs), peak period (Tp) and wave power density (Pd) during a northeast monsoon are Hs = 1.35 m, Tp = 4.79 s and Pd = 4.05 kW/m, respectively, while a southwest monsoon, which is sheltered by the mainland, results in Hs = 0.52 m, Tp = 3.37 s and Pd = 0.34 kW/m. While the simulated model was observed to overestimate the significant wave height (bias = 0.398, RMSE = 0.54 and SI = 1.34), it has a strong relationship with the “observed values” (average r = 0.9). The annual energy production for Wave Dragon, Archimedes Wave Swing and Seawave Slot-Cone Generator are highest at 1970.6 MWh, 2462.04 MWh, 62.424 MWh and 4099.23 MWh, respectively. © 2022 by the authors.

Affiliations

Center for Research in Energy Systems and Technology (CREST), University of San Carlos, Cebu City, 6000, Philippines; Engineering Graduate Program, School of Engineering, University of San Carlos, Cebu City, 6000, Philippines; Department of Electrical Engineering, Palawan State University, Puerto Princesa City, 5300, Philippines; Magwayen Enterprise for Management of Environmental Systems Incorporated, Quezon City, 1105, Philippines; OceanPixel Pte Ltd, 39 Pandan Road, Jurong, Singapore, 609281, Singapore