Cheniere releases supply chain emissions study
US LNG developer Cheniere Energy released a peer-reviewed assessment on August 5 showing that life-cycle greenhouse gas (GHG) emissions from its exports to China are 30-43% lower than other estimates that rely on national or regional average emission profiles.
This first-of-its-kind analysis utilises GHG emissions data specific to Cheniere’s LNG supply chain from natural gas production through LNG shipping. The use of this specific data provides an improved methodology for emissions accounting and estimates a lower GHG intensity than previous assessments, largely driven by differences from gas production and gathering, transmission and ocean transport.
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Using Cheniere’s regasified LNG for power generation in China, replacing coal, also leads to a 47-57% reduction in GHG emission intensity, the study shows.
“The publication of this peer-reviewed study is the result of a journey that began in 2018 with our climate & sustainability principles, and further demonstrates our commitment to climate and supports our efforts to quantify and improve environmental performance,” Cheniere CEO Jack Fusco said. “We believe this study highlights the importance of customised, supplier-specific LNG emissions analysis and will enhance the accuracy and transparency of our GHG emissions profile to better inform all of our stakeholders.”
The new emissions analysis will form the foundation for emissions estimates to be included in Cheniere’s cargo emissions tags, and is expected to be enhanced over time through additional collaboration with its natural gas suppliers, midstream infrastructure owners and shipowners.
The study was co-authored by individuals from the University of Texas at Austin, Queen Mary University in London, Duke University, KeyLogic Systems and Cheniere. It has been published in the American Chemical Society’s Sustainable Chemistry & Engineering Journal.