Assessment of tidal energy potential from low-velocity tidal flows in the Indian Sundarbans utilizing validated hydrodynamic model and tidal turbine technology

Koushik Bhui, Sugata Hazra and Tuhin Bhadra

Renewable Energy, 2025, vol. 242, issue C

Abstract: The ecologically sensitive, fluvio-tidal deltaic islands of the Sundarbans possess significant potential for tidal energy extraction. Tidal energy, a reliable renewable source, offers an environmentally sustainable corridor for green development in the region. This study assesses the feasibility of harnessing tidal energy from low-velocity tidal flows using vertical arrays of stand-alone ducted turbines in the Indian Sundarbans. Tidal current data were extracted from a validated hydrodynamic model based on selective hydrographic surveys conducted across several locations in the Indian Sundarbans. A turbine design consisting of 9 ducted turbines, each with a rotor diameter of 2.66 m and a diffuser diameter of 4 m, is proposed based on flow dynamics observed in the creeks and channels of the region. Theoretical estimates indicate annual energy outputs of 107.86 MWh at Site 4 in Durgaduani Creek, 53.64 MWh at Site 5, 49.68 MWh at Site 2 in the Matla River, 25.92 MWh at Site 1 in Chaltabani Khal, and 16.53 MWh at Site 3 in the Thakuran River, which capable of powering approximately 7896 households. The study contributes to the knowledge base of renewable energy development in ecologically sensitive areas like deltas with mangroves and points to sustainable energy solutions for green development.

Keywords: Tidal velocity; Tidal energy; Array turbines; Hydrodynamic modelling; Renewable energy; Indian Sundarban (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:242:y:2025:i:c:s0960148125000722

DOI: 10.1016/j.renene.2025.122410

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