Trends in Sizing for a Hydrogen Storage System for a 1 GW Offshore Wind Farm
Résumé
Electricity storage is considered as a key component for future grid with high renewables penetration. In the present study, trends in sizing for a hydrogen electricity storage system coupled to a 1 GW offshore wind farm are highlighted. A 'system approach' was conducted in order to analyse several scenarios of storage capacity, technologies and even equipment nominal powers. Real wind measurement and national electricity productions and consumptions were used as input data. The impact of wind farm capacity factor, hydrogen storage technology and inter-annual resource variations on the storage system sizing is assessed. A first estimation of the cost of electricity generated by a full offshore facility is performed together with possible added flexibility to the network. Geological storage is identified as the cheapest for all storage capacities and the least impacted by inter-annual variations.
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