What roles will hydrogen and electricity play in power generation on the path to decarbonization? This is one of several questions that were explored during the March 31 webinar, Hydrogen Talk with Petteri Laaksonen.
This webinar is the first in the Path to 100’s Community of Experts Networking Call Series, also known as the Expert Exchange, which serves as a forum for experts to share knowledge on the best ways to decarbonize electricity to speed the transition to 100% renewable energy.
Featured speakers for the inaugural Community of Experts webinar were Petteri Laaksonen, Research Director in the School of Energy Systems at LUT University in Lappeenranta, Finland, and Jussi Heikkinen, Director, Wärtsilä Growth and Development, who also moderated the webinar.
The focus of Laaksonen’s presentation was green electrification and the hydrogen economy. He opened by discussing some of the ways in which electricity and hydrogen are produced and used for energy in different sectors of industry, in transportation, and in buildings. Central to this discussion was the efficiency of electricity versus hydrogen for use in applications and the infrastructure that is needed to support their use.
According to Laaksonen, “Hydrogen is not as efficient as electricity when it comes to transportation and the transport sector does not have the infrastructure and vehicles to support hydrogen’s use. However, hydrogen’s potential lies in its ability to be synthesized into different products, such as synthetic fuels.”
The focus of the presentation then shifted to a discussion of the location-related competitive advantages of hydrogen and electricity. One of the big advantages of producing and storing hydrogen and electricity as fuels onsite is cost, specifically the costs of shipping and lost efficiency when transporting from one location to another.
“When it comes to choosing which fuel, hydrogen or electricity, to use in an application, there are no clear winners. Each location will have its advantages,” said Laaksonen.
After Laaksonen’s presentation, Heikkinen spoke about the role of hydrogen in the optimal decarbonization path using a California modelling case study. Central to the discussion was a new approach to electricity storage that utilizes both short- and long-term storage strategies. He emphasized that on the optimal path, hydrogen in long-term storage can be tapped into as a fuel to help with seasonal system balancing and managing extreme weather.
Said Heikkinen, “Having seasonal storage in the form of fuel and flexible power plants can result in cost reductions from 126 to 50 dollars per megawatt hour and enable firm capacity that can be tapped into when there’s a heat wave or cloud cover.”
Photo by Jason Leung on Unsplash