Bioreciclaje de Cádiz, Enagás Renovable and Waga Energy partner to build new RNG facility in Andalusia
A new renewable natural gas (RNG) production facility is set to transform waste into clean energy in southern Spain. Bioreciclaje de Cádiz, a public-private consortium, and Enagás Renovable have partnered with Waga Energy to develop an RNG project at the Medina Sidonia Landfill in the province of Cádiz, Andalusia. Scheduled for commissioning in 2027, the facility will recover landfill gas and convert it into renewable energy for local communities.
The project will produce up to 273,000 MMBtu (80 GWh) of RNG annually, equivalent to the energy consumption of 16,000 Spanish households or a fleet of 185 liquefied natural gas-powered trucks. By replacing fossil fuels with renewable gas, the facility will prevent approximately 21,000 metric tons of CO₂ emissions each year, reinforcing the region’s pathway toward carbon neutrality.
A circular economy model for waste management
Bioreciclaje de Cádiz — owned by Valoriza Servicios Medioambientales, GS Inima, and the Consortium for Urban Waste Management in the Province of Cádiz — manages the Miramundo – Los Hardales Environmental Complex, which treats and disposes of solid waste from 34 municipalities. Together with Enagás Renovable, a leader in renewable gas development, the consortium will handle the grid injection and commercialisation of the RNG produced.
Under the agreement, Waga Energy will design, build and operate a gas purification unit using its patented WAGABOX® technology, which captures and upgrades landfill gas into pipeline-quality renewable gas. The company will operate the unit until 2038, supplying upgraded gas to Bioreciclaje de Cádiz and Enagás Renovable for injection into Spain’s gas grid.
This collaboration marks Waga Energy’s second project in Spain, following its first near Barcelona, and reflects the growing role of landfill-to-energy projects in Europe’s renewable energy mix.
Driving the energy transition
José Antonio García Galdón, CEO of Waste Treatment at Valoriza, said:
“Thanks to this new agreement with Waga Energy and Enagás Renovable, we continue to demonstrate our commitment to sustainable development by supporting a circular economy that turns waste into resources.”
Francisco de Los Santos, Director of GS Inima, added:
“At GS Inima, we are proud to be part of a project that redefines waste management. By using cutting-edge technology, we are not only addressing the region’s environmental challenges, but also creating a more sustainable future. We believe that this public-private partnership is the key to transforming waste into a valuable resource, promoting clean energy production and generating tangible benefits for the environment and our community.”
Antón Martínez, CEO of Enagás Renovable, emphasised the project’s long-term significance:
“With the implementation of this new RNG production plant in collaboration with Bioreciclaje de Cádiz and Waga Energy, we reaffirm our commitment to a sustainable future by promoting innovation and efficient waste management.”
Baptiste Usquin, CEO of Waga Energy Spain, noted:
“Our WAGABOX® unit will allow us to transform landfill gas into a local, renewable, and circular energy source. By producing renewable natural gas—a key component of the energy transition—we are taking concrete action against climate change and helping to strengthen Andalusia’s energy independence.”
Advancing Spain’s renewable gas capacity
The project supports Spain’s efforts to scale up renewable gas infrastructure in line with Paris Agreement goals and EU circular economy policies. RNG derived from waste plays a critical role in decarbonising sectors where electrification remains difficult, such as heavy transport and industrial heating.
Approved in July by the Consortium for Urban Waste Management in the Province of Cádiz, the project demonstrates how regional cooperation and public-private partnerships can accelerate the shift to low-carbon energy systems.
Once operational in 2027, the Medina Sidonia facility will not only reduce emissions but also turn waste management sites into local energy producers — creating a tangible example of how circular economy principles can power Spain’s energy transition.
