Biography:
Alvaro Ortega graduated from The Higher Technical School of Industrial Engineering, University of Castilla - La Mancha (Spain) in 2013 with the Electrical and Electronic Itinerary, and graduated with honors in his Final Project. He received his PhD in Electrical Engineering from University College Dublin (Ireland) in 2017, with the thesis entitled "Dynamic Modeling, Control and Stability Analysis of VSC-based Energy Storage Systems". Alvaro Ortega Manjavacas is, since September 2020, Senior Power Systems Researcher IIT - Comillas Pontifical University, and previously was with LOYOLATech at University Loyola Andalucia (Jan. - Sept. 2020) and with the School of Electrical and Electronic Engineering in University College Dublin (Sept. 2013 - Dec. 2019). His current fields of research include modeling, control and stability of energy storage systems connected to transmission and distribution systems; and frequency estimation, control and stability in low-inertia systems.
Areas of interest:
Modeling, control and stability of energy storage systems connected to transmission and distribution systems; and frequency estimation, control and stability in low-inertia systems.
H. Nemati, A. Ortega, P. Sánchez, "Two-stage robust optimization strategy for VPP participation in the energy and reserve markets considering intertemporal carbon trading", International Journal of Electrical Power & Energy Systems, Vol. 172, pp. 111093, November 2025. [Online: September 2025] doi: 10.1016/j.ijepes.2025.111093
H. Nemati, P. Sánchez, A. Ortega, L. Sigrist, E. Lobato, L. Rouco, "Flexible robust optimal bidding of renewable virtual power plants in sequential markets under asymmetric uncertainties", Sustainable Energy, Grids and Networks, Vol. 43, pp. 101801, September 2025. [Online: July 2025] doi: 10.1016/j.segan.2025.101801
H. Nemati, P. Sánchez, A. Baringo, A. Ortega, "Single-level flexible robust optimal bidding of Renewable-Only Virtual Power Plant in energy and secondary reserve markets", Energy, Vol. 328, pp. 136421, August 2025. [Online: May 2025] doi: 10.1016/j.energy.2025.136421
H. Nemati, P. Sánchez, L. Sigrist, L. Rouco, A. Ortega, "Flexible robust optimization for Renewable-only VPP bidding on electricity markets with economic risk analysis", International Journal of Electrical Power & Energy Systems, Vol. 167, pp. 110594, June 2025. [Online: March 2025] doi: 10.1016/j.ijepes.2025.110594
J. Gutiérrez-Florensa, F. Sanniti, D. Tedeschi, L. Sigrist, A. Ortega, F. Milano, "Theoretical and experimental limitations of RoCoF estimation: A geometric approach", Electric Power Systems Research, Vol. 262, pp. 113529, January 2027. [Online: June 2026] doi: 10.1016/j.epsr.2026.113529
H. Nemati, A. Ortega, E. Lobato, L. Rouco, "A multi-bound robust optimization approach for renewable-based VPP market participation considering intra-hourly uncertainty exposure", Applied Energy, Vol. 426, nº. Part C, pp. 128765, December 2026. [Online: September 2026] doi: 10.1016/j.apenergy.2026.128765
H. Nemati, I. Egido, P. Sánchez, A. Ortega, "Assessing value of renewable-based VPP versus electrochemical storage: Multi-market participation under different scheduling regimes and uncertainties", Sustainable Energy, Grids and Networks, Vol. 46, pp. 102281, June 2026. [Online: April 2026] doi: 10.1016/j.segan.2026.102281
H. Nemati, P. Sánchez, A. Ortega, L. Sigrist, L. Rouco, "Integration of concentrated solar power plants in renewable-only VPP with electrical and thermal demands: A two-stage robust bidding approach", Journal of Energy Storage, Vol. 141, nº. Part C, pp. 119265, January 2026. [Online: November 2025] doi: 10.1016/j.est.2025.119265
O. Oladimeji, A. Ortega, L. Sigrist, B. Marinescu, V. Thomas, "Adaptive High-Performance Optimization Tool for Real-time Operation of Renewable-based Virtual Power Plants", IEEE Access, Vol. 13, pp. 11479 - 11493, 2025. [Online: January 2025] doi: 10.1109/ACCESS.2025.3528123
H. Nemati, A. Ortega, P. Sánchez, "Two-stage robust optimization strategy for VPP participation in the energy and reserve markets considering intertemporal carbon trading", International Journal of Electrical Power & Energy Systems, Vol. 172, pp. 111093, November 2025. [Online: September 2025] doi: 10.1016/j.ijepes.2025.111093
H. Nemati, P. Sánchez, A. Ortega, L. Sigrist, E. Lobato, L. Rouco, "Flexible robust optimal bidding of renewable virtual power plants in sequential markets under asymmetric uncertainties", Sustainable Energy, Grids and Networks, Vol. 43, pp. 101801, September 2025. [Online: July 2025] doi: 10.1016/j.segan.2025.101801
H. Nemati, P. Sánchez, A. Baringo, A. Ortega, "Single-level flexible robust optimal bidding of Renewable-Only Virtual Power Plant in energy and secondary reserve markets", Energy, Vol. 328, pp. 136421, August 2025. [Online: May 2025] doi: 10.1016/j.energy.2025.136421
H. Nemati, P. Sánchez, L. Sigrist, L. Rouco, A. Ortega, "Flexible robust optimization for Renewable-only VPP bidding on electricity markets with economic risk analysis", International Journal of Electrical Power & Energy Systems, Vol. 167, pp. 110594, June 2025. [Online: March 2025] doi: 10.1016/j.ijepes.2025.110594
H.R. Chamorro, A.J. Guel-Cortez, E. Kim, F. Gonzalez-Longatt, A. Ortega, W. Martínez, "Information length quantification and forecasting of power systems kinetic energy", IEEE Transactions on Power Systems, Vol. 37, nº. 6, pp. 4473 - 4484, November 2022. [Online: January 2022] doi: 10.1109/TPWRS.2022.3146314
P. Santurino, L. Sigrist, A. Ortega, J. Renedo, E. Lobato, "Optimal coordinated design of under-frequency load shedding and energy storage systems", Electric Power Systems Research, Vol. 211, pp. 108423, October 2022. [Online: July 2022] doi: 10.1016/j.epsr.2022.108423
F. Milano, M. Liu, M.A.A. Murad, G.M. Jónsdóttir, G. Tzounas, M. Adeen, A. Ortega, I. Dassios, "Power system modelling as stochastic functional hybrid differential-algebraic equations", IET Smart Grid, Vol. 5, nº. 5, pp. 309 - 331, October 2022. [Online: May 2022] doi: 10.1049/stg2.12069
O. Oladimeji, A. Ortega, L. Sigrist, L. Rouco, P. Sánchez, E. Lobato, "Optimal participation of heterogeneous, RES-based virtual power plants in energy markets", Energies, Vol. 15, nº. 9, pp. 3207, May 2022. [Online: April 2022] doi: 10.3390/en15093207
J. Gutiérrez-Florensa, F. Sanniti, D. Tedeschi, L. Sigrist, A. Ortega, F. Milano, "Theoretical and Experimental Limitations of Rocof Estimation: A Geometric Approach", presented at XXIV Power Systems Computation Conference - PSCC 2026, Limassol, Cyprus, 08-12 June 2026. In: Electric Power Systems Research, vol. 262, pp. 113529, doi: 10.1016/j.epsr.2026.113529
H. Nemati, L. Sigrist, L. Rouco, P. Sánchez, A. Ortega, "Addressing unfeasibilities of energy storage systems participating in energy and reserve markets", presented at IEEE PES International Conference on Innovative Smart Grid Technologies Europe - ISGT Europe 2022, Novi Sad, Serbia, 10-12 October 2022. In: ISGT Europe 2022: Conference proceedings, pp. 1-5, doi: 10.1109/ISGT-Europe54678.2022.9960347
O. Oladimeji, L. Sigrist, A. Ortega, "Guaranteeing the provision of Primary Frequency Control services by distributed generation", presented at IEEE PES International Conference on Innovative Smart Grid Technologies Europe - ISGT Europe 2022, Novi Sad, Serbia, 10-12 October 2022. In: ISGT Europe 2022: Conference proceedings, pp. 1-5, doi: 10.1109/ISGT-Europe54678.2022.9960702
O. Oladimeji, A. Ortega, L. Sigrist, P. Sánchez, E. Lobato, L. Rouco, "Modeling demand flexibility of RES-based virtual power plants", presented at IEEE Power & Energy Society General Meeting - IEEE PES GM 2022, Denver, United States of America, 17-21 July 2022. In: IEEE PES GM 2022: Conference proceedings, pp. 1-5, doi: 10.1109/PESGM48719.2022.9916893
P. Santurino, L. Sigrist, A. Ortega, J. Renedo, E. Lobato, "Optimal coordinated design of under-frequency load shedding and energy storage systems", presented at 22nd Power Systems Computation Conference - PSCC 2022, Porto, Portugal, 27 June - 01 July 2022. In: Electric Power Systems Research, vol. 211, pp. 1-8, doi: 10.1016/j.epsr.2022.108423
A. Ortega, F. Milano, "Frequency control of Distributed Energy Resources in distribution networks", presented at 10th IFAC Symposium on Control of Power and Energy Systems - CPES 2018, Tokyo, Japan, 04-06 September 2018. In: IFAC-PapersOnLine, vol. 51, nº. 28, pp. 37-42, doi: 10.1016/j.ifacol.2018.11.674