Holttinen, H, Kiviluoma, J, Helistö, N, Levy, T, Menemenlis, N, Jun, L, Cutululis, N, Koivisto, M, Das, K, Orths, A, Eriksen, P B, Neau, E, Bourmaud, J-Y, Dobschinski, J, Pellinger, C, van Roon, S, Guminski, A, Flynn, D, Carlini, E M, Yasuda, Y, Tanabe, R, Watson, S, van der Meer, A A, Morales-España, G, Korpås, M, Vrana, T K, Estanqueiro, A, Couto, A, Silva, B, Martín Martínez, S, Söder, L, Strbac, G, Pudjianto, D, Giannelos, S, Frew, B, Hodge, B-M, Shah, S, Smith, J C, Lew, D, O'Malley, M & Klonari, V 2021, Design and operation of energy systems with large amounts of variable generation: Final summary report, IEA Wind TCP Task 25 . VTT Technology, vol. 396, VTT Technical Research Centre of Finland . https://doi.org/10.32040/2242-122X.2021.T396 Holttinen, H, Kiviluoma, J, Helistö, N, Levy, T, Menemenlis, N, Jun, L, Cutululis, N, Koivisto, M, Das, K, Orths, A, Eriksen, P B, Neau, E, Bourmaud, J-Y, Dobschinski, J, Pellinger, C, von Roon, S, Guminski, A, Flynn, D, Carlini, E M, Yasuda, Y, Tanabe, R, Watson, S, van der Meer, A, Morales-España, G, Korpås, M, Vrana, T K, Estanqueiro, A, Couto, A, Silva, B, Martín Martínez, S, Söder, L, Strbac, G, Pudjianto, D, Giannelos, S, Frew, B, Hodge, B-M, Shah, S, Smith, J C, Lew, D, O'Malley, M & Klonari, V 2021, Design and operation of energy systems with large amounts of variable generation : Final summary report, IEA Wind TCP Task 25 . VTT Technology, no. 396, VTT Technical Research Centre of Finland . https://doi.org/10.32040/2242-122X.2021.T396