Optimal Design and Operation of Power-To-Gas System for Storage of Renewable Electricity and Interaction with the Electric Grid

   In this project, we study and optimize the design and operation of a power-to-gas (P2G) system for the storage of renewable electricity and bi-directional interaction with the electric grid. The P2G system is mainly composed of PV panels, a high- or low-temperature electrolyzer and a methanation system to produce and liquefy methane. A CO2 district thermal conditioning network (a patent of EPFL) and the natural gas network complement the system.

Power to Gas Integrated System

During the project development, the design of the system will be investigated for different operating modes. Additionally, the project will demonstrate benefits of the innovative, advanced electricity storage systems in the perspective of the future Swiss electricity grid. An analysis of the opportunity to address the variations in the electricity supply and demand will also be completed. In particular, analysis of the proposed approach will be considered when integrated with renewable energy sources to comprehensively compare the thermo-economic performance of the system with alternative available solutions.

Contact: Raluca Suciu

Project-related publications

R.-A. Suciu; P. M. Stadler; L. Girardin; F. Maréchal : Method for the systematic integration of multi-energy networks and low carbon resources in cities. 2018-06-26. The American Society of Mechanical Engineers Power and Energy Conference, Lake Buena Vista, Florida, USA, June 24-28, 2018.
R. Suciu; P. Stadler; L. Girardin; F. Maréchal : Multi-period multi-time optimisation of CO 2 based district energy systems; ESCAPE 28; Elsevier B.V., 2018-01. p. 1057-1062.
S. Henchoz; D. Favrat; F. Maréchal; L. Girardin : Novel district heating and cooling energy network using CO2 as a heat and mass transfer fluid. 2017. 12th International Energy Agency Heat Pump Conference – HPC2017, Rotterdam, Holland, Mai 15-18, 2017.
R.-A. Suciu; L. Girardin; F. Maréchal : Integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe. 2017. ECOS 2017 - The 30th Environmental Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy systems, San Diego, California, USA, July 2-6, 2017.
R. Suciu; P. Stadler; A. Ashouri; F. Maréchal : Towards energy-autonomous cities using CO2 networks and Power to Gas storage. 2016. 29th International Conférence on Efficiency, Cost, Optimization, Simulation and Environmental Impact of energy systems, Postoroz, Slovenia, June 19-23, 2016.
L. Girardin; F. Marechal; P. Tromeur : Methodology for the design of industrial hydrogen networks and the optimal placement of purification units using multi-objective optimisation techniques. 2006. p. 1765-1770. DOI : 10.1016/S1570-7946(06)80303-2.