The overall objective of the BioCat Project is to design, engineer, and construct a commercial-scale power-to-gas facility and demonstrate its capabilities to provide energy storage services to the Danish energy system.
The facility uses an advanced alkaline electrolyzer and a biological methanation system to produce pipeline-grade renewable gas for injection and storage in a local gas distribution grid. Located at the wastewater treatment plant Avedøre south of Copenhagen (Denmark), the facility also acts as a demonstrator of the technical capability and economic viability of oxygen and heat recycling in the on-site wastewater operations.
An optimized trading strategy mimicking the intermittent nature of wind and solar energy production is being developed in order to maximize economic value capture. This trading strategy will be implemented through a direct communications link between the facility and the control system.
Over the course of 3,000 hours of operation, the BioCat consortium will collect data about the robustness, efficiency, dynamics, productivity, longevity, and reliability of the system. The engineering, procurement, construction and operation activities will produce valuable insights into regulatory and commercial aspects, including capital and operating costs and permitting requirements. This technical and economic data will thus support further technological improvements and lift the technology to market-readiness by the end of 2016.