Renewable Energy Units - Hernieuwbare Brandstof Eenheden - are a Dutch system of certificates based on the EU Renewable Energy Directive (RED). Under the system, parties that produce liquid fossil fuels for transport have an obligation from the government to purchase REUs. Per year, €1 billion REUs are traded in the Netherlands. You can earn between 4.5 and 18 eurocents per kWh ‘sold’ to a vessel, for example when using shore power.

This is a case study on the ‘Skoon Skipper’, a general cargo large Rhine vessel, with an average of 40 [kW] power demand while moored to which a shore battery is applied. Batteries can help you comply with shore power regulations where no infrastructure exists with limited to no CAPEX investments. CAPEX is €0 for this case study as the battery pack is rented at an estimated €400 dayrate. Purchase cost for battery pack are approx. €350.000. This case study is powered by our preferred partner Skoon.

In February 2022, Skoon placed a battery system on Noordereiland for the Port of Rotterdam to boost shore power for stationary inland vessels. Addressing power shortfalls, the battery supported shore power cabinets, successfully delivering up to 63A without tripping fuses, benefiting both vessels and residents. This solution also enabled supplying power to larger ships, aligning with sustainability goals and showcasing potential expansion across the city center.