The first facility of its kind in the U.S. to produce alternative jet fuel from carbon dioxide (CO₂) and grid power is now under construction in Washington state. The sustainable aviation fuel plant will showcase carbon transformation technology developed by Twelve, s startup devoted to transforming CO₂ into chemicals, materials and fuels.

When production begins in 2024, the factory will produce around 40,000 gallons of E-Jet fuel annually from CO_{2A polymer electrolyte membrane reactor architecture is used for CO2 electrolysis. Source: Twelve} captured and delivered by diverse industrial plants in the region. The ultimate goal is a production rate of 1 million gallons annually. The fuel has been certified for use in a 50-50 blend with conventional jet fuel., and new planes will eventually be able to use a version entirely derived from CO₂. The new E-Jet formulation can help cut emissions by as much as 90%.

An efficient polymer-electrolyte membrane CO₂ electrolyzer uses proprietary CO₂-reducing catalysts to split CO₂ with just water and renewable electricity as inputs, syngas (carbon monoxide and hydrogen) as the output, and pure oxygen as the only byproduct. Alaska Airlines, Microsoft and Shopify will be the first consumers of this jet fuel to help meet their decarbonization targets.