A strategic industrial project for the production of synthetic sustainable aviation fuel (e-SAF), designed to position Spain and Europe at the forefront of air transport decarbonization.
Compostilla Green is an industrial project to be developed in Cubillos del Sil (León, Spain) aimed at producing sustainable aviation fuels (e-SAF) from renewable hydrogen and biogenic CO₂. The initiative combines technological innovation with regional development, with the goal of decarbonizing air transport while contributing to the reindustrialization of the Bierzo region through stable economic activity and skilled employment.
The project integrates two key facilities: a 250 MW renewable hydrogen plant, capable of producing approximately 38,000 tonnes per year, and an e-SAF plant that will convert this hydrogen, together with captured CO₂, into around 60,000 tonnes per year of sustainable fuel. These fuels are fully compatible with existing aircraft and enable significant emissions reductions in the aviation sector, in line with European decarbonization targets.
Located in the El Bayo Industrial Park on previously designated industrial land, Compostilla Green ensures efficient deployment with controlled environmental and territorial impact. Beyond its climate contribution, the project will generate employment and economic activity in the area, with around 240 direct jobs during operation, reinforcing Bierzo’s role as an industrial hub linked to the energy transition.
250 MW
electrolysis capacity
38,000 t/year
hydrogen production
59,000 t/year
e-SAF production
230,000 t/year
CO₂ captured
€1.05 billion
total investment
2,700
JOBS
during construction
240
JOBS
during operation
and Key Milestones
Pre-feasibility studies
Initial pre-feasibility studies for the project.
Grid access application
Submission of the grid access and connection request.
Grant application
Submission of Compostilla Green to the renewable hydrogen production and consumption incentives programme (clusters or valleys), under Spain’s Recovery, Transformation and Resilience Plan, funded by the European Union – NextGenerationEU.
Land agreement signed
Agreement signed with SOMACYL for land allocation in El Bayo Industrial Park.
Grant awarded
Official resolution of the incentive programme published, with Compostilla Green ranked first and awarded €81.4 million.
Environmental permitting (AAI)
Start of the Integrated Environmental Authorization (AAI) process.
Pre-FEED awarded
Técnicas Reunidas awarded the Pre-FEED engineering contract for the Compostilla Green plant.
RLCF Alliance presentation
RIC Energy presents Compostilla Green at the General Assembly of the Renewable and Low-Carbon Fuels Value Chain Industrial Alliance (RLCF) in Brussels as a strategic SAF initiative in Europe.
Regional strategic project application
Submission for recognition as a project of regional interest in Castilla y León.
NZIA strategic project application
Submission for recognition as a European Strategic Project under the Net-Zero Industry Act (NZIA) of the European Commission.
Project funded by the European Union – NextGenerationEU, within the framework of the Spanish Government’s Recovery, Transformation and Resilience Plan. Selected project under the H2 Valleys programme.
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