How Google Is Scaling SAF Demand Through Shell, Amex GBT

Google has extended a long-term agreement with American Express Global Business Travel and Shell Aviation to source sustainable aviation fuel (SAF) environmental attributes. The deal uses the blockchain-powered Avelia registry and shows how corporate demand can drive SAF supply growth.

What Is the Google-Amex GBT-Shell SAF Agreement?

Google extended its collaboration with Amex GBT and Shell Aviation through this agreement. Amex GBT is a leading software and services company for travel, expense, and meetings and events. Shell Aviation is one of the world's largest traders and suppliers of sustainable aviation fuel. The extended agreement sources SAF environmental-attribute information through the Avelia registry.

This is a multi-year commitment, not a one-time transaction. Long-term agreements like this send sustained demand signals that SAF producers need before investing in new supply capacity.

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How Does the Avelia Book-and-Claim Model Work?

The book-and-claim model separates SAF environmental attributes from the physical fuel. A corporate buyer can access the lifecycle emissions-reduction benefits of SAF even when that fuel is not available at its departure airport.

The SAF only needs to be injected somewhere into the aviation fueling network. Avelia's blockchain securely tracks and allocates the environmental attributes to the registered buyer. This removes a key logistical barrier to aviation decarbonization.

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Why Corporate Demand Is the Engine Behind SAF Supply Growth

Strong corporate demand is essential to growing the SAF market. It sends the signals SAF producers need to invest and expand supply. Lifecycle greenhouse-gas emissions from aviation can fall by up to 80 percent through SAF use.

Global SAF production grew 24 times between 2021 and 2025, reaching an estimated 713 million gallons by year-end. Multi-year agreements are a primary driver of that growth.

Avelia Metric	Figure (as of March 2026)
SAF injected into fuel network	Over 64 million gallons at 18 airport locations worldwide
CO2e abated	Over 590,000 tons
CO2e equivalent	1 million passengers flying London to New York
Corporations and airlines on platform	66
Retirements executed	Over 1,300
Global SAF production growth (2021–2025)	24 times

How Big Is the Avelia Ecosystem Today?

Avelia has grown well beyond its 2022 pilot launch. Over 64 million gallons of SAF have been injected at 18 airport locations worldwide. That has helped abate over 590,000 tons of CO2e, the equivalent of 1 million passengers flying from London to New York.

Sixty-six corporations and airlines have joined the platform. More than 1,300 retirements have been executed. The rapidly expanding SAF market continues to feed the supply that Avelia tracks and allocates.

Where Policy and Corporate Action Converge

Corporate agreements don't operate in a vacuum. In the U.S., the Section 45Z Clean Fuel Production Tax Credit provides incentives for SAF producers. Europe and Asia are adding SAF mandates and incentives to their regulatory frameworks, reinforcing the push toward aviation decarbonization.

Policy and long-term corporate demand together give producers the confidence to scale. Avelia now connects buyers to verified SAF supply across 18 airports. Aviation lifecycle greenhouse-gas emissions can drop by up to 80 percent through SAF. Corporate commitments from companies like Google keep that foundation growing.