RED III’s RFNBO Rules: The Certification Gauntlet Every Producer Must Pass

Under the revised Renewable Energy Directive (RED III), green hydrogen sold into EU industrial or transport markets must qualify as an RFNBO — a Renewable Fuel of Non-Biological Origin. That requires producers to demonstrate additionality (new renewable electricity capacity dedicated to electrolysis), temporal correlation (hourly matching of renewable generation and electrolyser consumption by 2030 in most member states), and geographical correlation (electricity sourced within the same or adjacent bidding zones). Failure on any of these three criteria strips the hydrogen of its RFNBO status and, with it, eligibility to count toward national renewable energy targets or to be sold at the premium prices compliance buyers are willing to pay.

For a 15 MW facility at FEED stage — precisely the scale at which investment decisions crystallise — the certification architecture must be locked in before final investment decision (FID), not retrofitted afterward. Compliance directors evaluating offtake agreements in 2026 should note that the delegated acts defining RFNBO methodology are already in force; the question is no longer whether the rules exist but whether a plant’s design and power-purchase agreements are structured to satisfy them from day one of operation.

From FEED to FID: The Policy Clock Operators Cannot Ignore

The BrightHy FEED completion is significant not only as an engineering checkpoint but as a regulatory one. Projects reaching FID in 2026–2027 will be commissioning into the 2028–2030 window, when EU member-state RFNBO sub-targets under RED III begin to bite. The industrial sector faces a binding requirement that a minimum share of its hydrogen consumption must come from RFNBOs, creating a pull-through demand signal that makes certified green hydrogen commercially distinct from uncertified ‘low-carbon’ hydrogen. For offtakers — chemical producers, fertiliser manufacturers, refiners covered by the EU Emissions Trading System — sourcing certified RFNBO hydrogen is increasingly a compliance obligation, not merely an ESG preference.

Producers should also be alert to the interaction with the EU Carbon Border Adjustment Mechanism (CBAM), which is phasing in carbon pricing on imported goods. Facilities that cannot certify their hydrogen’s renewable origin risk CBAM exposure across downstream product chains, adding a further financial incentive to secure RFNBO status early.

What Compliance and Marketing Directors Should Do Now

Three actions define best practice for the 2026–2027 planning cycle. First, audit every existing or planned power-purchase agreement against RED III’s additionality and temporal-correlation criteria; legacy PPAs written before the delegated acts are frequently non-compliant. Second, engage an accredited certification body — recognised under the EU’s voluntary certification schemes — at FEED stage, so that metering, data-logging and reporting architecture is embedded in the plant design rather than bolted on. Third, map the geographical-correlation requirement against grid topology: southern European locations, where BrightHy is developing, generally benefit from strong solar resources and less congested bidding zones, but cross-border power flows can complicate correlation proofs and require advance legal structuring.

The efficiency objection to hydrogen-derived e-fuels in road transport — roughly five times more renewable electricity consumed per kilometre than a battery-electric vehicle — is a real cost consideration in power-constrained markets. It is, however, largely irrelevant to the industrial RFNBO market, where hydrogen replaces fossil feedstocks in processes that have no battery-electric substitute. That is precisely where RED III’s RFNBO framework is designed to drive certified green hydrogen first.

Sources

• Green hydrogen production via electrolysis: Materials innovation, system integration, and global deployment pathways
• What EU RED III compliance for biofuels means for renewable fuel operators – RSB

Featured image via Unsplash.