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PARITY

Pathway to Affordable Renewable Integration at Parity

Project area

Resource procurement (Input)

Fuel production

Refining and upgrading

Storage

Transport

Distribution

Utilisation

Post-treatment and recycling

Safety and standardisation

Systems integration / sector coupling

Community work and stakeholder involvement

Structural frameworks, regulation, and markets

All projects in the MissionGreenFuels project portfolio contribute to the green transition across the green fuels value chain and cross-cutting themes. The highlighted icons indicate the area this project contributes to. Click on the icons to lean more.

Project description

PARITY develops and demonstrates a circular pathway from agricultural straw to green fuels. The project will optimise mono-straw anaerobic digestion to increase methane yield and operational robustness, while recovering water and nutrients through a zero-liquid-discharge approach. Selected activities will also explore how biogas can be converted into renewable methanol using green hydrogen and electrified steam methane reforming. By combining sustainable biomass, circular resource use and Power-to-X technologies, PARITY supports the development of scalable and cost-effective green fuels for transport and industry.

Project facts

Total budget of the project including co-financing

0 million DKK

Project start

June 2026

Project status

Active

Funding pool

Pool 4

Inflection point

Achieving cost parityTechnology clarification and demonstration

Value chain and theme

Resource procurement (Input)Fuel production

Project objectives

Optimise straw-based biogas production

PARITY will test and improve mono-straw anaerobic digestion to increase methane yield, process stability and operational robustness when using agricultural straw as the main feedstock.

Close water and nutrient cycles

The project will demonstrate a zero-liquid-discharge approach for digestate handling, enabling recovery and recirculation of water and nutrients while reducing waste streams and environmental impacts.

Explore biogas-to-methanol integration

Selected activities will assess how biogas from straw can be converted into renewable methanol through integration with green hydrogen and electrified steam methane reforming.

Generate data for scale-up and replication

PARITY will deliver performance data, sustainability documentation and practical learnings that can support future investment decisions and replication of circular green fuel plants.

Project partners

Danish Technological Institute

Danish Technological Institute is an independent research and technology organisation that helps companies and society turn knowledge into innovation, growth and sustainable solutions. Since 1906, we have worked to promote technological advances for the benefit of industry and society. Through research, development, consultancy, testing and dissemination, we translate new knowledge into practical solutions and services. We work closely with industry, universities and public authorities across areas such as energy, climate, materials, production, food and life science. A significant part of our work supports the green transition, including green energy, energy efficiency, sustainable fuels and technologies that help reduce climate impact.

Projects

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Renew Energy

Renew Energy is a globally active biogas engineering house with reference plants worldwide, including our oldest operational facility from 1996 that still delivers electricity and gas through co-digestion. We specialize in the design, development, and optimization of advanced biogas facilities, biorefineries, and power-to-X systems. By refining biomass, organic waste, and carbon dioxide into high-value green energy, Renew Energy delivers proven, commercial-scale solutions that drive the global transition away from fossil fuels.

Why Renew Energy participates in MissionGreenFuels

Renew Energy joined MissionGreenFuels to help accelerate the scalability of next-generation e-fuels. As a partner, we bridge the gap between organic waste management, carbon capture, and power-to-X production. Our motivation is to integrate circular bioenergy technologies directly into the green fuel value chain. By collaborating across industries, we contribute the technical expertise needed to bring down production costs and turn sustainable carbon sources into clean fuels for transport and industry.

Projects

PARITY

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Impact & outcome

PARITY is expected to deliver demonstration-scale data and practical learnings on straw-based biogas production, methane yield optimisation, zero-liquid-discharge digestate handling, nutrient and water recovery, and integration with renewable methanol production. The project will generate sustainability documentation, process insights and replication guidelines that can support future investment decisions for commercial plants. In the longer term, the results can help unlock agricultural straw as a scalable non-food feedstock, reduce waste streams, improve carbon efficiency and support cost-effective production of green fuels for transport and industry.

PARITY is about turning an abundant agricultural residue into a scalable pathway for green fuels. By combining straw-based biogas, circular resource recovery and Power-to-X integration, the project can help unlock new value from biomass while supporting the transition towards cost-effective renewable fuels for transport and industry.

Søren Knudsen Kær

Director, Head of Technology, Power-to-X, European Energy A/S

Mission fit

PARITY strengthens the MissionGreenFuels portfolio by adding a circular straw-to-biogas and biogas-to-methanol pathway based on sustainable, non-food feedstocks. The project contributes to both resource procurement and fuel production, complementing other portfolio activities focused on green methanol, carbon use and downstream fuel applications. By linking feedstock mobilisation, technology integration and commercial scale-up, PARITY supports MissionGreenFuels’ goal of accelerating sustainable fuels for transport and industry before 2050.