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Developed in partnership with World Energy and shaped by a broad, global consultation, this new framework recognises long-term environmental attribute certificate (EAC) offtake agreements and provides a credible demand signal to support financing for SAF production 

Geneva, Switzerland 4December 2025 – The Roundtable on Sustainable Biomaterials (RSB) has launched the Market Acceleration Indicator (MAI) Methodology and Module for pilot testing. This new framework is designed to support the scale-up of sustainable aviation fuel (SAF) by providing credible recognition of long-term EAC offtake agreements. These agreements will be verified and reflected in the RSB Book & Claim System, allowing SAF buyers and producers to demonstrate robust demand signals that support investment and financial decision-making. 

The MAI was developed in close collaboration with World Energy and refined through stakeholder consultations. It responds directly to one of the SAF market’s most persistent challenges: the lack of visible and credible demand that can be used to secure project financing. By turning long-term offtake commitments into clear, verifiable indicators, the MAI gives producers and buyers a powerful tool to strengthen financing negotiations, unlock additional capital for facility expansions, and attract new investors to emerging SAF projects. 

The framework is now available for pilot testing. Offtake contracts that meet the MAI criteria can be registered in RSB’s system, with a Market Acceleration Indicator included in the book and claim retirement statement. This creates a clear and auditable claim of long-term commitment that can support financing, insetting, and additionality claims. 

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Credibility supported by a diverse stakeholder group 

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The MAI was shaped through expert input from across the aviation, energy, technology, finance, consulting and sustainability sectors. Stakeholder participants included: 

Airbus, Airlines for America, AIT Worldwide Logistics, Arcadia eFuels, Center for Green Market Activation, Charm Industrial, Deloitte US, EC-Impact, Evident, EY, Future Energy Global Ltd, GE Aerospace, Gevo Inc., Green Finance Institute,, Iberia Express, International Air Transport Association (IATA), Jet Zero, Microsoft, MotionECO, MUFG, Nova Pangaea Technologies, RMI, S&P Global Commodity Insights and Twelve,  

“Scaling sustainable aviation fuel is critical to meeting our climate goals and driving progress across the industry. The Market Acceleration Indicator provides a clear, credible signal of long-term demand, giving both seasoned and new buyers—along with producers and investors—the confidence to move faster and unlock the next wave of SAF growth.” – Lauren Kickham, Microsoft, Director, Markets and Investments. 

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From pilot concept to system integration 

The MAI builds on the concept of translating long-term offtake agreements into transparent and verifiable claims. Similar to Power Purchase Agreements (PPAs) used in renewable energy markets, EAC offtake agreements help to define commercial additionality.  The MAI formalises what constitutes a strong, bankable and additional demand signal. 

Once the MAI has been piloted and consulted with RSB’s multi-stakeholder membership, it will form an integral part of the RSB Book & Claim Manual and the RSB Book & Claim Registry. It introduces the system’s first impact claim beyond carbon emissions, focusing on the role of demand in enabling new supply and supporting additionality in the SAF market. 

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A tool for greater confidence and impact   

The MAI provides: 

• A clear and standardised structure for qualifying long-term SAF offtake agreements 

• Registry-based recognition of these agreements at the point of retirement 

• Support for investors evaluating demand certainty during financial due diligence 

• Additional transparency for buyers pursuing credible insetting strategies 

“RSB’s new Market Acceleration Indicator provides a solution to the persistent challenge for renewable fuel developers to achieve bankability. Thanks to RSB, with sponsorship from World Energy and Microsoft, we have a contract framework and an emerging system to certify projects. This will be a game changer to answer the question of what is “bankable” and to accelerate lower cost capital for harder-to-abate climate solutions.” said Adam Klauber, Chief Sustainability Officer at World Energy.

“This tool gives SAF market actors a credible way to prove commitment and unlock finance,” said Julia Fidler, Executive Director of RSB. “It brings visibility to contracts that can drive the crucial next generation of SAF investment, including from emerging producers who will be essential to meeting growing SAF demand.” 

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Next steps 

The Market Acceleration Indicator is now available for pilot use. Interested SAF producers, buyers and financiers are encouraged to engage with the RSB team to explore how the framework can support project development, investment readiness and credible demand recognition. 

Access the MAI methodology here.

Reach out to [email protected] if you would like to explore options to pilot the Indicator.

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About the Roundtable on Sustainable Biomaterials (RSB) 

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The Roundtable on Sustainable Biomaterials (RSB) is a global, multi-stakeholder network advancing the just transition to a net-positive world. Its peer-reviewed sustainability framework supports real climate action, biodiversity protection and social equity across the bio-based and circular economy. Through certification, advisory services, collaborative programmes and innovative tools, RSB supports its partners to make credible sustainability claims and unlock investment for a sustainable future. Learn more at www.rsb.org 

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About World Energy  

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World Energy works with leading companies to help reduce emissions across their value chains. With solutions spanning sustainable aviation fuel, clean hydrogen, advanced biofuels, and fully transparent decarbonization services, World Energy is collaborating to confront the biggest decarbonization challenges in key industries like aviation, cement, and steel. For over 25 years, World Energy has been at the forefront of commercializing renewable fuels and was the world’s first commercial-scale sustainable aviation fuel producer. Today, we’re investing in projects to improve our facilities and technologies in California, Newfoundland, and beyond so we can meet clean energy demand and keep critical industries moving forward responsibly. Learn more at www.worldenergy.net.  

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