Wind Balancing Costs in a Power System with High Wind Penetration--Evidence from Portugal
Pedro M. S. Frade, João Pedro Pereira, João J. E. Santana, João P. S. Catalao
Energy Policy, vol. 132, 2019, p. 702-713.

Impact of Tertiary Reserve Sharing in Portugal
Pedro M. S. Frade, João J. E. Santana, M. Shafie-khah, João P. S. Catalao
Utilities Policy, vol. 55, 2018, p. 167-177.