Shipowners need more than a sales pitch to be convinced that windsails can lower fuel costs by more than half, according to an advocate for the emission-free technology.
They want proof, says International Windship Association secretary Gavin Allwright.
"It's third-party verification on the fuel savings," he tells TradeWinds during CMA Shipping 2019 in Stamford, Connecticut.
He said owners are told fuel cost savings can be as much as 20% on retrofits and up to 70% on newbuild installations, but they want unaffiliated proof before making a deal.
