Green Gas Gets a Reality Check

New EU leakage rules will reshape biomethane certification, market access and Bio-LNG compliance across Europe

7 May 2026

The European Commission is revising its greenhouse gas accounting methodology under the Renewable Energy Directive, introducing a requirement that biomethane producers include methane leakage from their facilities in emissions calculations. The change, which affects certification across the continent, gives producers limited time to adapt before compliance burdens intensify.

Under the new framework, operators who deploy recognized leak-mitigation practices may apply a deduction that reduces their reported emissions figure. Those who do not will face a heavier accounting penalty, weakening the sustainability certificates on which market access increasingly depends. For a sector whose commercial value is closely tied to certified emissions performance, analysts said the operational implications are immediate and direct.

Several member states have already moved in this direction. Germany and the Netherlands have restructured incentive systems to reward fuels based on greenhouse gas reduction performance under their transpositions of RED III. Manure-based biomethane, which can reach negative net emissions, holds the strongest competitive position, but only where producers can demonstrate the monitoring rigor the revised rules will require.

A significant regulatory gap remains unresolved. Eurogas, which represents major European gas network operators, has noted that disaggregated default values for Bio-LNG liquefaction are absent from the current draft. Without them, shipping operators cannot generate a compliant lifecycle emissions score for biomethane bunkered under FuelEU Maritime, the binding marine decarbonization regulation that has driven renewable fuel demand since taking effect in January 2025. Eurogas has called for a phased rollout and harmonized guidance across member states.

The stakes are considerable. Committed investment across Europe is projected to deliver roughly seven billion cubic meters of additional biomethane capacity by 2030, according to industry figures, a fraction of the 35 billion cubic meter target set under REPowerEU. Certification uncertainty, officials suggested, is precisely the friction an undersupplied market cannot absorb. Producers investing now in leak detection infrastructure are building ahead of requirements that appear increasingly inevitable, and how regulators resolve outstanding gaps in the coming months could determine the shape of Europe's green gas market for years ahead.