Grid balancing with a large‐scale electrolyser providing primary reserve. Issue 16 (29th November 2020)

• Record Type: Journal Article
• Authors: Samani, Arash E.; D'Amicis, Anna; De Kooning, Jeroen D.M.; Bozalakov, Dimitar; Silva, Paolo; Vandevelde, Lieven
• Is Part Of: IET renewable power generation. Volume 14:Issue 16(2020)
• Page Start: 3070
• Page End: 3078
• Publication Date: 2020-11-29
• Subjects: costing -- power generation economics -- optimisation -- power grids -- power transmission economics -- electrolytic devices; FCR -- techno‐economic model -- capital costs -- operational costs -- generated hydrogen -- oxygen products -- ancillary service income -- contracted power band -- grid support -- large‐scale electrolyser -- primary reserve -- renewable energy sources -- grid frequency -- grid balancing services -- off‐shore wind farms -- transmission grid -- power variations -- ancillary services -- economic revenue -- hydrogen electrolyser -- Belgian transmission system -- frequency containment reserve -- green gas -- power 25.0 MW; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2020.0453
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : As the share of renewable energy sources increases, the grid frequency becomes more unstable. Therefore, grid balancing services will become more important in the future. Dedicated devices can be installed close to the point where off‐shore wind farms are connected to the transmission grid on land. There, they can be used to attenuate power variations, reduce congestion and offer grid balancing. The provision of these ancillary services can create considerable additional economic revenue. In this study, the provision of the primary reserve by means of a large hydrogen electrolyser of 25 MW is investigated for the specific case of the Belgian transmission system. The revenue of the provision of the frequency containment reserve (FCR) is analysed on a techno‐economic model, including capital costs, operational costs, the revenue of the generated hydrogen and oxygen products and the ancillary service income. The revenue depends strongly on the contracted power band. Therefore, it is optimised to yield maximum revenue. The results show that providing FCR creates considerable additional revenue. Therefore, a large electrolyser can be a good candidate to buffer excess renewable energy into green gas while simultaneously providing the grid support.