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Supporting Ocean Thermal Energy Conversion Deployment through High-Resolution Resource and Impact Modeling

高解像度の資源・影響モデリングによる海洋温度差発電の展開支援 (AI 翻訳)

Park, Kyungmin, Yang, Zhaoqing, Copping, Andrea

Zenodoプレプリント2026-06-04#再生可能エネルギーOrigin: US
DOI: 10.5281/zenodo.20546652
原典: https://zenodo.org/records/20546652

🤖 gxceed AI 要約

日本語

本研究は、グアムとハワイ周辺の海洋温度差発電（OTEC）資源ポテンシャルを高解像度海洋モデルで評価。細かな空間・時間変動を捉え、効率的なOTEC運用に必要な温度勾配を解析。さらに、混合水の排出が海洋環境に与える影響を評価し、通常運転下では影響が最小限であることを示した。

English

This study uses a high-resolution ocean model to assess Ocean Thermal Energy Conversion (OTEC) resource potential near Guam and Hawaii. It captures fine-scale variability in thermal structure crucial for OTEC efficiency and evaluates environmental impacts of discharge, finding minimal disturbance under normal operations.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本でも沖縄や小笠原諸島など熱帯・亜熱帯地域でのOTEC導入可能性が検討されており、本成果は資源評価と環境影響の両面から実装判断に資する。

In the global GX context

OTEC offers baseload renewable energy for tropical islands globally. This high-resolution modeling approach can improve resource characterization and impact assessment, supporting deployment decisions in regions like the Caribbean, Pacific, and Southeast Asia.

👥 読者別の含意

🔬研究者:The high-resolution modeling approach provides a methodology for assessing OTEC potential and environmental impacts in data-sparse tropical regions.

🏢実務担当者:Developers can use these results to optimize site selection and system design for OTEC projects.

🏛政策担当者:The study provides scientific support for integrating OTEC into national renewable energy strategies for island economies.

📄 Abstract（原文）

Ocean Thermal Energy Conversion (OTEC) presents a promising renewable energy solution that harnesses energy by utilizing the natural temperature gradient between warm surface waters and cold deep waters. To characterize the OTEC resource potential and support OTEC project siting and system design, this study employs a high-resolution, unstructured-grid ocean model to evaluate the thermal energy potential around two key areas: Guam and Hawaii. Model results demonstrate that high-resolution modeling captures fine-scale spatial and temporal variability in ocean thermal structure that is often missed by observations or coarse-resolution reanalysis products. These localized dynamics play a critical role in shaping the vertical thermal gradients essential for efficient OTEC operation. In addition to resource assessment, we also analyze the potential environmental effects of OTEC operations due to the discharge of mixed water plumes at various locations. This includes evaluating potential thermal disturbances to the upper ocean and their implications for marine ecosystems. The model indicates that, under typical OTEC operational conditions, the influence of cold-water discharge on the ambient water remains minimal. This study underscores the applications of high-resolution numerical modeling for improved resource characterization and impact assessment in the early phase of OTEC deployment in tropical island settings.

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