European Consortium will Develop Electrolysis for Efficient Storage of Renewable Energy
June 27, 2016 | Technical University of DenmarkEstimated reading time: 2 minutes
A new European research project coordinated by DTU Energy will develop and validate innovative electrolysis technologies to convert excess renewable electricity into methane which can be easily stored in the existing natural gas grid.
What do you do if the wind is blowing hard and the Danish wind turbines generate more electricity than the consumers have need for? You can try to export it, but as the countries around us increase their own share of renewables this becomes increasingly difficult: They will most likely have a surplus supply of electricity at the same time as Denmark. As Europe transitions to a sustainable energy system, there will be a sharply increased demand for storage of electricity. One may think that the obvious solution is to use batteries, but conventional batteries with the required – for example seasonal – storage capacity would be prohibitively expensive. A more promising option is to store the surplus electricity in the form of chemical energy in a compound, and at a later time re-convert the chemical energy into electricity again.
Electrolysis is precisely such a technology for converting electricity into chemical energy. Traditional electrolysis starts with water and use electricity to split it into hydrogen and oxygen. If you store the hydrogen, it can later be used to generate power in a gas turbine or a fuel cell. However, water electrolysis is typically performed at an operation temperature below 100 °C which inherently limits the efficiency of the process. Solid oxide electrolysis cells (SOECs) by contrast operate at very high temperature, 650-850 °C, with an efficiency approaching 100%. Furthermore, such cells can not only electrolyze water but also CO2 at the same time. This means that they can produce a mixture of hydrogen and CO which can easily be converted to hydrocarbons such as methane (the main constituent of natural gas).
The new European research project ECo (Efficient Co-Electrolyser for Efficient Renewable Energy Storage) coordinated by DTU Energy will develop and validate the SOEC technology for storage of sustainable energy. The project will focus on methane production, as it has a significant advantage over comparative storage options: it readily integrates with the existing natural gas grid and storage facilities. Already now, approx. 50% of the total electricity produced from renewable sources could be accommodated as methane in existing underground storage facilities in Europe, thus saving significant investments. The comprehensive natural gas network also makes it a system of transport for bringing power from production to consumption areas. The project partners, which include both research institutions and industry from across Europe, will bring the technology from proof-of-concept to validation in a relevant environment, making it ready for prototype demonstration.
Suggested Items
Boeing Opens Research & Technology Center in Japan
04/23/2024 | BoeingBoeing today opened a Boeing Research & Technology (BR&T) Center in Japan that will focus on innovation to enable the commercial aviation industry meet its goal of net zero carbon emissions by 2050.
Gartner Forecasts Worldwide IT Spending to Grow 8% in 2024
04/17/2024 | Gartner, Inc.Worldwide IT spending is expected to total $5.06 trillion in 2024, an increase of 8% from 2023, according to the latest forecast by Gartner, Inc. This is an increase from the previous quarter’s forecast of 6.8% growth and puts worldwide IT spending on track to surpass $8 trillion well before the end of the decade.
Argonne, RIKEN Sign a Memorandum of Understanding in Support of AI for Science
04/16/2024 | BUSINESS WIRELeaders in high performance computing in the U.S. and Japan have signed a memorandum of understanding (MOU) establishing a cooperative relationship in support of artificial intelligence (AI) computing projects.
RAICo Fellowship to Widen Participation Within the Field of Robotics and Artificial Intelligence
04/12/2024 | RAICoWOMEN and those early in their academia career who are passionate about robotics and artificial intelligence are encouraged to apply for a RAICo Fellowship.
Indium to Host Free Webinar on Lead-Free Solder Paste for Automotive Applications
04/09/2024 | Indium CorporationIndium Corporation’s Senior Research Metallurgist, Jie Geng, Ph.D., will conduct a webinar on low-voiding, high-reliability, lead-free solder paste for automotive applications.