A master thesis from Aalborg University
Hydrogen Production Curtailment from Transmission Line Overloading - A PandaPower Study on PtX Grid-Connection Scenarios in the Region of Northern Jutland, Denmark
[Tab af brintproduktion ved overbelastning af eltransmissionslinjer - et PandaPower studie udi PtX net-forbindelse scenarier i region Nordjylland, Danmark]
Author(s)
Term
4. Term
Publication year
2024
Submitted on
2024-06-07
Pages
79 pages
Abstract
The deployment of hydrogen production via electrolysers in power-to-X (PtX) facilities can be refined into synthetic fuels, which enables abating greenhouse gas emissions in otherwise hard-to-abate sectors such as heavy transportation and industry. However, with increasing electrification occurring in energy systems and changes to the nature of electricity generation, the impact on potential overloading of electricity transmission lines come into question with the high level of electricity consumption needed from grid connected PtX facilities. Curtailment of hydrogen production in PtX facilities may be needed as to not induce overloading of transmission systems. This study performs a power flow analysis in the modelling tool of PandaPower to the electricity transmission grid in the case study area in the region of Northern Jutland, Denmark. Different strategies of varying grid connection versus direct electricity generation from directly connected onshore wind turbines are simulated to evaluate curtailment of hydrogen production of PtX facilities with varying capacities in preliminary pipeline to the region. Results indicate that grid connection of two 1 GW PtX facilities to the region will induce overloading of transmission lines to a degree with which the existing electricity transmission grid in the region can’t withstand the transported electricity and potentially undermine the hydrogen production of other, smaller PtX grid connected facilities in the region by inducing transmission line overloading. By assuming no grid connection of the two 1 GW PtX facilities in pipeline to the region of Northern Jutland, can the smaller PtX facilities – amounting to 570 MW of electrolyser capacity – achieve full hydrogen production in all hours of the year, whilst effectively offsetting 188 GWh of excess electricity production from directly connected onshore wind turbines.
Keywords
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