ZERO44 Releases Free Biofuel Calculator

ZERO44, a provider of software for maritime emissions compliance, has released a free, interactive fuel cost calculator on its website. The tool shows ship operators how the economics of replacing fossil fuel with biofuel change once carbon regulations are taken into account, and how that picture shifts year by year.

According to ZERO44, fuel prices are still frequently compared on a one-to-one basis: what does a tonne of biofuel cost against a tonne of fossil fuel? If the comparison stops there, biofuel often loses due to its price premium.

Under the calculator’s default assumptions, replacing one tonne of VLSFO with biodiesel on voyages within the EU results in a net benefit of around USD$181.5 (€163) in 2026. The outcome depends on many inputs: fossil and biofuel prices, the geographical scope of the voyage, and the prices for EU Allowances, FuelEU pooling and Scope 3 insets. The calculator brings these elements together in one view, allowing operators to understand the full picture.

Regulatory costs are set to rise: EUA prices are expected to increase, FuelEU targets tighten every five years, and the IMO Net-Zero Framework could add a global carbon price from 2029 if adopted in December. The calculator shows users how these effects combine over the years.

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