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

Method for the systematic integration of multi-energy networks and low carbon resources in cities

R-A. Suciu; P. M. Stadler; L. Girardin; F. Maréchal 

The American Society of Mechanical Engineers Power and Energy Conference, Lake Buena Vista, Florida, USA, June 24-28, 2018.

Multi-period multi-time optimisation of CO2 based district energy systems

R. Suciu; P. Stadler; L. Girardin; F. Maréchal 

ESCAPE 28; Elsevier B.V., 2018-01. p. 1057-1062.

Integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe

R-A. Suciu; L. Girardin; F. Maréchal 

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.

Novel district heating and cooling energy network using CO2 as a heat and mass transfer fluid

S. Henchoz; D. Favrat; F. Maréchal; L. Girardin 

2017. 12th International Energy Agency Heat Pump Conference – HPC2017, Rotterdam, Holland, Mai 15-18, 2017.

Towards energy-autonomous cities using CO2 networks and Power to Gas storage

R. Suciu; P. Stadler; A. Ashouri; F. Maréchal 

2016. 29th International Conférence on Efficiency, Cost, Optimization, Simulation and Environmental Impact of energy systems, Postoroz, Slovenia, June 19-23, 2016.

Methodology for the design of industrial hydrogen networks and the optimal placement of purification units using multi-objective optimisation techniques

L. Girardin; F. Marechal; P. Tromeur 

2006.  p. 1765-1770. DOI : 10.1016/S1570-7946(06)80303-2.