Renewable fuels from waste

At Repsol, we have been manufacturing and marketing sustainable biofuels for years. To do this, we use various raw materials, like vegetable oil waste, used cooking oil, biomass, and wine-based alcohols from waste in the wine industry. The use of these raw materials allows us to significantly reduce CO2 emissions compared to the traditional fuels they replace. Used cooking oil, for example, reduces emissions by 85-90%.

Cartagena Industrial Facility

Pioneers in Spain

At Repsol, we are building the first low-emissions advanced biofuels plant in Spain at our refinery in Cartagena. The plant will produce biofuels from recycled raw materials and have an annual production capacity of 250,000 tonnes of hydrobiodiesel, biojet, bionaphtha, and biopropane to be used in aircraft, trucks, or cars.

This facility will be equipped with cutting-edge technology and the most efficient solutions and will include the commissioning of a hydrogen plant that will fuel a new hydrotreatment unit.

Our plant in figures

€200 M+

investment in Cartagena



during construction and startup


t of CO2/year

in emissions reduction, thanks to the use of recycled raw materials


as the anticipated start of production


Strategic objectives

As we rely on the circular economy as a tool to efficiently use resources, these are the targets for this project that fall within our commitment to the energy transition and are in line with our goal of becoming net zero by 2050


million tonnes

Renewable fuel production capacity in 2030


renewable fuel production

To come from the use of waste as raw material in 2030

Avión volando y cielo azul

Biofuel from waste for aircraft 

We've successfully completed the first batch of aviation biojet fuel from waste on the Spanish market at our Petronor industrial facility. This important milestone in low-emissions fuel production represents an evolution in the decarbonization of air transportation – a sector in which electrification is not viable at the moment.

The batch consists of 5,300 tonnes of fuel that meets strict product quality requirements and sustainability conditions throughout the chain of production, logistics, and marketing. Its use will prevent 300 tonnes of CO2 from being released into the atmosphere, which is equal to the amount of CO2 released by 40 Madrid-Bilbao flights.

Classification by key lines and value chain

Our circular economy projects are aligned with the key lines of our strategy and are present throughout our entire value chain, from obtaining raw materials to commercializing products and services.

Classification by key lines and value chain