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Hull Cleaning - ROI Estimate

Return-on-investment of a mid-docking hull cleaning - saves fuel via reduced hull roughness and fouling drag.

Hull cleaningROIFouling
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Formula, assumptions, and limits

ROI=ΔmFtPCC\text{ROI} = \frac{\Delta m_F \cdot t \cdot P - C}{C}
SymbolMeaningUnit
ΔmF\Delta m_FDaily fuel reductiont/day
PPFuel priceUSD/t
CCCleaning cost (diver or robot)USD

Source: BIMCO Biofouling Guidelines

In short

Return-on-investment of a mid-docking hull cleaning - saves fuel via reduced hull roughness and fouling drag.

Learn the theory BWM Convention 2004: Ballast Water Management