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<p>Tidal currents are a promising renewable energy source because they are predictable and available continually. In contrast to the utilization of potential energy, exploiting the kinetic energy of tidal currents is relatively simpler for electricity generation and has been extensively developed. In this research, the optimal layout of tidal current turbines (TCTs) in the Alas Strait, Indonesia, is examined to optimize energy production using numerical modeling. The OpenTidalFarm model that relies on the gradient-based solution to shallow water equations was utilized to establish the best turbine layout. We found that the best number of TCTs per square kilometer is 67 TCTs for 1.25&#xa0;km × 0.8&#xa0;km of turbine farm. Optimization of 67 TCTs in the Alas Strait’s narrowest point, off the Sumbawa Island coast, resulted in a 4.2% increase in power generation upon 100 iterations. The initial power output of 572,683 W, which was achieved using a pre-optimized alternate turbine arrangement, was brought up to 596,919 W upon optimization. The above findings show the potential of strategic placement of turbines in boosting tidal energy extraction in narrow straits.</p>

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Optimal configuration of a tidal current turbine farm in a Narrow Strait: Alas Straits, Indonesia

  • 期刊论文

  • 发表日期：

    2025年7月28日

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  • Totok Suprijo,
  • Gandhi Napitupulu,
  • Thexon Lanata Sosrodjojo,
  • Aldwin Valdemar Fuadi

摘要

Tidal currents are a promising renewable energy source because they are predictable and available continually. In contrast to the utilization of potential energy, exploiting the kinetic energy of tidal currents is relatively simpler for electricity generation and has been extensively developed. In this research, the optimal layout of tidal current turbines (TCTs) in the Alas Strait, Indonesia, is examined to optimize energy production using numerical modeling. The OpenTidalFarm model that relies on the gradient-based solution to shallow water equations was utilized to establish the best turbine layout. We found that the best number of TCTs per square kilometer is 67 TCTs for 1.25 km × 0.8 km of turbine farm. Optimization of 67 TCTs in the Alas Strait’s narrowest point, off the Sumbawa Island coast, resulted in a 4.2% increase in power generation upon 100 iterations. The initial power output of 572,683 W, which was achieved using a pre-optimized alternate turbine arrangement, was brought up to 596,919 W upon optimization. The above findings show the potential of strategic placement of turbines in boosting tidal energy extraction in narrow straits.