Vertical Axis Wind Turbine Placement Inspired by Schooling Fish — Caltech (John Dabiri laboratory)

Biological model: Schooling fish (mackerel and other species)

Company: Caltech (John Dabiri laboratory)

Vertical axis wind turbines arranged using principles of fish schooling to improve efficiency and reduce energy costs in wind farms.

The challenge

Conventional wind farms use large spacing between turbines to minimize wake interference, reducing power density and land efficiency. This limits the economic viability of wind energy and requires more land area for the same power output.

Nature's strategy

Schooling behavior in fish (mackerel, herring, and other species) that use coordinated movement to achieve aerodynamic benefits

What was emulated

Collective movement patterns, proximity-based efficiency gains, and dynamic spatial arrangement found in fish schools

The innovation

Arranging vertical axis wind turbines in school-like formations to optimize energy extraction by leveraging proximity effects rather than spacing turbines far apart.

Full case study

Research led by John Dabiri at Caltech discovered that vertical axis wind turbines (VAWTs) arranged in patterns mimicking schooling fish behavior can significantly improve overall farm efficiency. Rather than spacing turbines far apart to minimize wake effects, arranged in schools similar to fish formation swimming, the turbines actually benefit from proximity effects and can generate more power per unit area. This counterintuitive finding challenges conventional wind farm design and has implications for offshore and onshore installations.