Startup ZERO44 Offers Shipowners a Way to Cash In on Biofuel CO2 Savings

A German startup says shipowners and operators could generate significant revenue by trading the carbon savings achieved through the use of biofuels, potentially helping offset the higher costs of green fuel compared to conventional oil, according to ShippingWatch.

The company, ZERO44, has developed a service that helps shipping companies sell the CO2 savings generated when they switch to biofuels instead of fossil fuel. According to ShippingWatch, this revenue stream can be used to help finance the continued use of biofuels, which remain considerably more expensive than traditional marine fuel oil.

Biofuels As A Revenue Opportunity

Speaking to ShippingWatch, ZERO44 CEO Friederike Hesse said that although biofuels come at a higher cost than oil, green fuels represent a clear opportunity for the shipping industry to generate income that can help fund the sector’s green transition. Hesse made the comments in the context of the European Union’s FuelEU Maritime climate package, according to the report.

The FuelEU Maritime regulation is part of the EU’s broader push to decarbonize shipping by setting requirements for the greenhouse gas intensity of energy used on board vessels calling at European ports. ShippingWatch’s report ties ZERO44’s business model directly to this regulatory framework, suggesting that compliance-driven demand for cleaner fuels could open new financial mechanisms for operators willing to make the switch.

Further details on how the CO2 savings are calculated, verified, or sold, as well as specifics on potential earnings, were not included in the publicly available portion of the ShippingWatch report.

Does This Matter to You?

For shipowners, operators, and charterers weighing the cost of switching to biofuels under tightening EU climate rules, this development points to a possible financial offset for the fuel price premium. Bunker traders and fuel suppliers monitoring the shift toward alternative fuels may also find relevance in new mechanisms that make biofuel adoption more commercially viable.

As FuelEU Maritime compliance costs and requirements continue to shape fuel-purchasing decisions across the industry, tools that help monetize emissions reductions could influence how quickly companies move away from conventional fuel oil. The full scope of ZERO44’s service and its financial impact, however, is not detailed in the available source material.


Gulf Bunkering does not provide operational or security guidance. This article is for informational purposes only. Operators should consult flag state authorities, P&I clubs, and relevant advisories for decisions relating to transit planning.

Sources: ShippingWatch

Scroll to Top