1Master's Program, Department of Architectural and Civil Engineering, Chonnam National University, Director, Yeosu Gwangyang Port Authority 2Master's Program, Department of Architectural and Civil Engineering / Interdisciplinary Program of Smart City, Chonnam National University, Manager, Yeosu Gwangyang Port Authority 3Doctoral Program, Department of Architectural and Civil Engineering, Chonnam National University, Manager, Yeosu Gwangyang Port Authority 4Professor, Department of Civil Engineering, Chonnam National University
Corresponding author:
Jong-In Lee ,Tel: +82-62-530-5431, Email: jilee@jnu.ac.kr
Received: November 17, 2025; Revised: February 21, 2026. Accepted: February 24, 2026.
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ABSTRACT
This study evaluates the techno-economic and commercialization feasibility of a 10-MW mobile wave energy system integrated with second-life EV battery energy storage. A hybrid swing-plate–cylinder converter and a coupled hydrodynamic–mooring–PTO simulation framework were developed to ensure survivability and operational efficiency under typhoon-level seas. Economic analysis assumes an 80 % capacity factor, SMP of 90 KRW/kWh, REC of 62.7 KRW/kWh, and a total CAPEX of 60 billion KRW. The resulting indicators are B/C=1.18, NPV≒14.0 billion KRW, and IRR=6.6 %. Even in conservative scenarios (CAPEX 75 billion KRW, price −10 KRW/kWh), B/C remains near 1.0, while favorable conditions raise B/C to 1.6~2.1. A commercialization strategy through a special-purpose company (SPC) including utilities, port authorities, and shipyards is proposed. The ESS employs EV battery packs in pack-as-is configuration, offering cost advantages and enabling maritime fast-charging or island microgrids. The concept aligns with Korea’s net-zero policy and demonstrates high export potential to wave-resource-rich regions.
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