What is an ERE?

1 ERE = 1 kg CO₂-eq reduction compared with the fossil reference. At the transition, 1 HBE became 46 EREs.

An ERE (emissiereductie-eenheid, emission reduction unit)A tradable unit representing 1 kg of CO₂ equivalent of emission reduction across the supply chain. (opens in a new tab)Read more at the NEa (in Dutch)(opens in a new tab) stands for 1 kilogram of CO₂ equivalentA measure for comparing greenhouse gases: the amount of CO₂ that causes the same amount of warming. (opens in a new tab)Read more at Wikipedia(opens in a new tab) of emission reduction across the supply chain, measured against a fossil reference value set at European level. EREs are tradable units.

With the introduction of RED IIIThe revised European directive on renewable energy. The Netherlands has implemented it with EREs since 2026. (opens in a new tab)Read more at the NEa (in Dutch)(opens in a new tab) in 2026, EREs replaced renewable fuel units (hernieuwbare brandstofeenheden, HBEs). 2025 was the last year with an annual obligationThe system up to and including 2025: fuel suppliers surrendered tradable HBEs every year. (opens in a new tab)Read more at the NEa (in Dutch)(opens in a new tab) using tradable HBEs; on 1 January 2026 the brandstoftransitieverplichting (BTV, fuel transition obligation)The obligation for fuel suppliers since 1 January 2026, expressed in EREs. (opens in a new tab)Read more at the NEa (in Dutch)(opens in a new tab) with EREs took effect. After the year-end closing for 2025, remaining HBEs were converted into EREsOn 1 May 2026, every remaining HBE was converted into 46 EREs of the same type. (opens in a new tab)Read more at the NEa (in Dutch)(opens in a new tab) of the same type on 1 May 2026, at 1 HBE = 46 EREs.