1. Energy - Renewable energy - OECD data, URL https://data.oecd.org/chart/6ZhT.
2. Power to liquid and power to gas: An option for the German Energiewende;Varone;Renew Sustain Energy Rev,2015
3. Review of power-to-gas projects in Europe;Wulf;Energy Procedia,2018
4. IPCC, 2022: Climate change 2022: Mitigation of climate change;Shukla,2022
5. Potential of Power-to-Methane in the EU energy transition to a low carbon system using cost optimization;Blanco;Appl Energy,2018