Europe’s carbon market could soon start paying shipowners to switch fuels, but the support on offer would be far from equal, according to a report published by reports on 25 October 2026.

In July the European Commission proposed a revision of the EU Emissions Trading System that would reserve up to 110 million allowances between 2028 and 2040 for a new Sustainable Maritime Alternative. The proposal is intended to channel value from the ETS into support for low‑carbon bunker fuels, the report says.

reports’s coverage highlighted that the draft mechanism appears to favour e‑fuels and bioLNG over other alternatives. That imbalance has prompted concern in parts of the maritime sector that the scheme could distort fuel investment decisions rather than simply reducing effective fuel costs.

Scale and timeframe

The proposed reservation of allowances would be spread across more than a decade, running from 2028 until 2040 and totalling as many as 110 million allowances. The long time horizon embeds market support into the ETS timeline and could shape investment signals for fuel producers and shipowners.

Winners and losers

According to the report, e‑fuels and bioLNG are likely to attract the largest share of the proposed subsidy, while other fuel pathways may receive little or no direct backing. That selective support could accelerate deployment of the favoured fuels but leave alternative technologies and transitional measures less competitive.

The report warns that unequal support risks creating stranded choices for shipowners if market and regulatory conditions change, and that it may complicate the sector’s already complex decarbonisation planning. The prospect of preferential incentives raises questions about technology neutrality and the criteria used to allocate a limited pool of allowances.

Industry implications

If implemented as described, the reservation would turn a portion of the EU carbon market into a targeted subsidy for specific maritime fuel types. Shipowners considering fleet renewal or retrofit would need to weigh the potential subsidy against fuel availability, infrastructure development and longer‑term policy certainty.

reports’s item frames the proposal as an intervention that could materially alter the economics of alternative fuels. The report does not, however, set out final allocation rules or the precise conditions under which allowances would be awarded, leaving significant detail to be determined in subsequent negotiations.

What happens next

The proposal first tabled by the Commission in July must pass through the EU’s legislative process before any reservation of allowances can take effect. Lawmakers and member states will debate the shape, eligibility and distribution mechanisms, and the final text could differ substantially from the draft described in the report.

For now, the story underlines a growing policy push to use the ETS not only to price emissions but also to direct funds at particular decarbonisation pathways. Shipowners, fuel producers and port infrastructure planners will be watching the file closely as the legislative phase proceeds, mindful that choices made now could influence the sector’s fuel mix for years to come.