Diego Tejada studied at the National University of Colombia, earning his degree in electrical engineering in 2005. He later obtained his PhD in electrical engineering from Comillas Pontifical University in 2019.

Currently, he works as a researcher at TNO in the Netherlands and has over 20 years of experience in various technical roles within the electricity sector in both Colombia and Spain.

For 6 years, he taught undergraduate and graduate courses in power systems and optimization in Colombia. In 2016, he began teaching at the Faculty of Engineering at Comillas Pontifical University. Since 2021, he has been teaching courses on models for the expansion of generation and transmission in the Master's program in the electricity sector (MEPI) and optimization techniques for doctoral students. Additionally, from 2019 to 2023, he served as the director of the Diploma in Fundamentals of Business Analytics (DFBA) at the Faculty of Economics and Business, and from 2021 to 2023, he directed the Executive Program in Business Analytics at ICADE-BS. Currently, he teaches the introductory Python module in the DFBA program.

Areas of interest:

Optimization. Unit Commitment. Generation and transmission expansion planning. Energy storage.

Highlighted Publications

Z. Gao, M. Gazzani, D.A. Tejada, A. S. Siqueira, N. Wang, M. Gibescu, G. Morales-España, "Fully flexible temporal resolution for energy system optimization", Applied Energy, Vol. 396, pp. 126267, October 2025. [Online: June 2025] doi: 10.1016/j.apenergy.2025.126267
JCR-JIF: 12,200 Q1 (2025); - SJR: 2,864 Q1 (2025);
S. Yamujala, M. J. Koivisto, M. Korpas, M. McPherson, N. Helistö, D. Lew, D.A. Tejada, G. Morales-España, D. Flynn, B. Frew, T. Heggarty, J. Kiviluoma, H. Holttinen, "Synergies and trade-offs between storage, transmission, and sector coupling in high renewable energy systems", Energy, Vol. 334, pp. 137701, October 2025. [Online: July 2025] doi: 10.1016/j.energy.2025.137701
JCR-JIF: 10,100 Q1 (2025); - SJR: 2,060 Q1 (2025);
T. Klatzer, S. Wogrin, D.A. Tejada, G. Morales-España, "Tight MILP formulation for pipeline gas flow with linepack", International Journal of Electrical Power & Energy Systems, Vol. 169, pp. 110734, August 2025. [Online: May 2025] doi: 10.1016/j.ijepes.2025.110734
JCR-JIF: 5,300 Q1 (2025); - SJR: 1,482 Q1 (2025);
D.A. Tejada, J. Kiviluoma, G. Morales-España, "Debunking the speed-fidelity trade-off: Speeding-up large-scale energy models while keeping fidelity", International Journal of Electrical Power & Energy Systems, Vol. 168, pp. 110674, July 2025. [Online: April 2025] doi: 10.1016/j.ijepes.2025.110674
JCR-JIF: 5,300 Q1 (2025); - SJR: 1,482 Q1 (2025);
S. Lumbreras, D.A. Tejada, D. Elechiguerra, "Explaining the solutions of the unit commitment with interpretable machine learning", International Journal of Electrical Power & Energy Systems, Vol. 160, pp. 110106, September 2024. [Online: June 2024] doi: 10.1016/j.ijepes.2024.110106
JCR-JIF: 5,000 Q1 (2024); 5,300 Q1 (2025) - SJR: 1,714 Q1 (2024); 1,482 Q1 (2025)

show 5 highlighted publications

Journal Publications

Z. Gao, M. Gazzani, D.A. Tejada, A. S. Siqueira, N. Wang, M. Gibescu, G. Morales-España, "Fully flexible temporal resolution for energy system optimization", Applied Energy, Vol. 396, pp. 126267, October 2025. [Online: June 2025] doi: 10.1016/j.apenergy.2025.126267
JCR-JIF: 12,200 Q1 (2025); - SJR: 2,864 Q1 (2025);
S. Yamujala, M. J. Koivisto, M. Korpas, M. McPherson, N. Helistö, D. Lew, D.A. Tejada, G. Morales-España, D. Flynn, B. Frew, T. Heggarty, J. Kiviluoma, H. Holttinen, "Synergies and trade-offs between storage, transmission, and sector coupling in high renewable energy systems", Energy, Vol. 334, pp. 137701, October 2025. [Online: July 2025] doi: 10.1016/j.energy.2025.137701
JCR-JIF: 10,100 Q1 (2025); - SJR: 2,060 Q1 (2025);
T. Klatzer, S. Wogrin, D.A. Tejada, G. Morales-España, "Tight MILP formulation for pipeline gas flow with linepack", International Journal of Electrical Power & Energy Systems, Vol. 169, pp. 110734, August 2025. [Online: May 2025] doi: 10.1016/j.ijepes.2025.110734
JCR-JIF: 5,300 Q1 (2025); - SJR: 1,482 Q1 (2025);
D.A. Tejada, J. Kiviluoma, G. Morales-España, "Debunking the speed-fidelity trade-off: Speeding-up large-scale energy models while keeping fidelity", International Journal of Electrical Power & Energy Systems, Vol. 168, pp. 110674, July 2025. [Online: April 2025] doi: 10.1016/j.ijepes.2025.110674
JCR-JIF: 5,300 Q1 (2025); - SJR: 1,482 Q1 (2025);
S. Lumbreras, D.A. Tejada, D. Elechiguerra, "Explaining the solutions of the unit commitment with interpretable machine learning", International Journal of Electrical Power & Energy Systems, Vol. 160, pp. 110106, September 2024. [Online: June 2024] doi: 10.1016/j.ijepes.2024.110106
JCR-JIF: 5,000 Q1 (2024); 5,300 Q1 (2025) - SJR: 1,714 Q1 (2024); 1,482 Q1 (2025)
D.A. Tejada, A. S. Siqueira, Ö. Özdemir, G. Morales-España, "TulipaProfileFitting.jl: a Julia package for fitting renewable energy time series profiles", SoftwareX, Vol. 27, pp. 101844, September 2024. [Online: August 2024] doi: 10.1016/j.softx.2024.101844
JCR-JIF: 2,400 Q2 (2024); 1,900 Q3 (2025) - SJR: 0,483 Q3 (2024); 0,499 Q2 (2025)
G. Morales-España, R. Hernández-Serna, D.A. Tejada, M. Weeda, "Impact of large-scale hydrogen electrification and retrofitting of natural gas infrastructure on the European power system", International Journal of Electrical Power & Energy Systems, Vol. 155, nº. Part B, pp. 109686, January 2024. [Online: November 2023] doi: 10.1016/j.ijepes.2023.109686
JCR-JIF: 5,000 Q1 (2024); 5,300 Q1 (2025) - SJR: 1,714 Q1 (2024); 1,482 Q1 (2025)
S. Wogrin, D.A. Tejada, S. Delikaraoglou, A.J. Lamadrid, A. Botterud, "The impact of convexity on expansion planning in low-carbon electricity markets", TOP, Vol. 30, nº. 3, pp. 574 - 593, October 2022. [Online: June 2022] doi: 10.1007/s11750-022-00626-4
JCR-JIF: 1,700 Q4 (2022); 1,500 Q4 (2025) - SJR: 0,671 Q2 (2022); 0,438 Q2 (2025)
S. Wogrin, D.A. Tejada, R. Gaugl, T. Klatzer, U. Bachhiesl, "LEGO: The open-source Low-carbon Expansion Generation Optimization model", SoftwareX, Vol. 19, pp. 101141, July 2022. [Online: July 2022] doi: 10.1016/j.softx.2022.101141
JCR-JIF: 3,400 Q2 (2022); 1,900 Q3 (2025) - SJR: 0,574 Q2 (2022); 0,499 Q2 (2025)
S. Wogrin, D.A. Tejada, A. Downward, A.B. Philpott, "Welfare-maximizing transmission capacity expansion under uncertainty", Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 379, nº. 2202, pp. 20190436, July 2021. [Online: June 2021] doi: 10.1098/rsta.2019.0436
JCR-JIF: 4,019 Q2 (2021); 3,700 Q1 (2025) - SJR: 0,973 Q1 (2021); 0,703 Q1 (2025)
S. Wogrin, D.A. Tejada, S. Delikaraoglou, A. Botterud, "Assessing the impact of inertia and reactive power constraints in generation expansion planning", Applied Energy, Vol. 280, pp. 115925, December 2020. [Online: September 2020] doi: 10.1016/j.apenergy.2020.115925
JCR-JIF: 9,746 Q1 (2020); 12,200 Q1 (2025) - SJR: 3,035 Q1 (2020); 2,864 Q1 (2025)
D.A. Tejada, S. Lumbreras, P. Sánchez, A. Ramos, "Which unit-commitment formulation is best? A comparison framework", IEEE Transactions on Power Systems, Vol. 35, nº. 4, pp. 2926 - 2936, July 2020. [Online: December 2019] doi: 10.1109/TPWRS.2019.2962024
JCR-JIF: 6,663 Q1 (2020); 8,700 Q1 (2025) - SJR: 3,312 Q1 (2020); 4,217 Q1 (2025)
D.A. Tejada, G. Morales-España, S. Wogrin, E. Centeno, "Power-based generation expansion planning for flexibility requirements", IEEE Transactions on Power Systems, Vol. 35, nº. 3, pp. 2012 - 2023, May 2020. [Online: October 2019] doi: 10.1109/TPWRS.2019.2940286
JCR-JIF: 6,663 Q1 (2020); 8,700 Q1 (2025) - SJR: 3,312 Q1 (2020); 4,217 Q1 (2025)
D.A. Tejada, S. Wogrin, A. Siddiqui, E. Centeno, "Opportunity cost including short-term energy storage in hydrothermal dispatch models using a linked representative periods approach", Energy, Vol. 188, pp. 116079, December 2019. [Online: September 2019] doi: 10.1016/j.energy.2019.116079
JCR-JIF: 6,082 Q1 (2019); 10,100 Q1 (2025) - SJR: 2,166 Q1 (2019); 2,060 Q1 (2025)
G. Morales-España, D.A. Tejada, "Modeling the hidden flexibility of clustered unit commitment", IEEE Transactions on Power Systems, Vol. 34, nº. 4, pp. 3294 - 3296, July 2019. [Online: March 2019] doi: 10.1109/TPWRS.2019.2908051
JCR-JIF: 6,074 Q1 (2019); 8,700 Q1 (2025) - SJR: 3,434 Q1 (2019); 4,217 Q1 (2025)
D.A. Tejada, A. Siddiqui, S. Wogrin, E. Centeno, "A review of energy storage system legislation in the US and the European Union", Current Sustainable/Renewable Energy Reports, Vol. 6, nº. 1, pp. 22 - 28, March 2019. [Online: January 2019] doi: 10.1007/s40518-019-00122-7
SJR: 0,888 Q1 (2025)
O.J. Guerra, D.A. Tejada, G.V. Reklaitis, "Climate change impacts and adaptation strategies for a hydro-dominated power system via stochastic optimization", Applied Energy, Vol. 233-234, pp. 584 - 598, January 2019. [Online: October 2018] doi: 10.1016/j.apenergy.2018.10.045
JCR-JIF: 8,848 Q1 (2019); 12,200 Q1 (2025) - SJR: 3,607 Q1 (2019); 2,864 Q1 (2025)
D. Yacar, D.A. Tejada, S. Wogrin, "Storage allocation and investment optimisation for transmission-constrained networks considering losses and high renewable penetration", IET Renewable Power Generation, Vol. 12, nº. 16, pp. 1949 - 1956, December 2018. [Online: October 2018] doi: 10.1049/iet-rpg.2018.5472
JCR-JIF: 3,605 Q1 (2018); 3,200 Q2 (2025) - SJR: Q2 (2018); 0,784 Q2 (2025)
D.A. Tejada, M. Domeshek, S. Wogrin, E. Centeno, "Enhanced representative days and system states modeling for energy storage investment analysis", IEEE Transactions on Power Systems, Vol. 33, nº. 6, pp. 6534 - 6544, November 2018. [Online: April 2018] doi: 10.1109/TPWRS.2018.2819578
JCR-JIF: 6,807 Q1 (2018); 8,700 Q1 (2025) - SJR: Q1 (2018); 4,217 Q1 (2025)
D.A. Tejada, P. Sánchez, A. Ramos, "Security constrained unit commitment using line outage distribution factors", IEEE Transactions on Power Systems, Vol. 33, nº. 1, pp. 329 - 337, January 2018. [Online: March 2017] doi: 10.1109/TPWRS.2017.2686701
JCR-JIF: 6,807 Q1 (2018); 8,700 Q1 (2025) - SJR: Q1 (2018); 4,217 Q1 (2025)
D.A. Tejada, S. Wogrin, E. Centeno, "Representation of storage operations in network-constrained optimization models for medium- and long-term operation", IEEE Transactions on Power Systems, Vol. 33, nº. 1, pp. 386 - 396, January 2018. [Online: April 2017] doi: 10.1109/TPWRS.2017.2691359
JCR-JIF: 6,807 Q1 (2018); 8,700 Q1 (2025) - SJR: Q1 (2018); 4,217 Q1 (2025)
O.J. Guerra, D.A. Tejada, G.V. Reklaitis, "An optimization framework for the integrated planning of generation and transmission expansion in interconnected power systems", Applied Energy, Vol. 170, pp. 1 - 21, May 2016. [Online: March 2016] doi: 10.1016/j.apenergy.2016.02.014
JCR-JIF: 7,182 Q1 (2016); 12,200 Q1 (2025) - SJR: Q1 (2016); 2,864 Q1 (2025)
D.A. Tejada, J.M. López-Lezama, M.J. Rider, G.E. Vinasco, "Transmission network expansion planning considering repowering and reconfiguration", International Journal of Electrical Power & Energy Systems, Vol. 69, pp. 213 - 221, July 2015. [Online: February 2015] doi: 10.1016/j.ijepes.2015.01.008
JCR-JIF: 2,587 Q1 (2015); 5,300 Q1 (2025) - SJR: 1,482 Q1 (2025)
G.E. Vinasco, D.A. Tejada, E.F. Da Silva, M.J. Rider, "Transmission network expansion planning for the Colombian electrical system: connecting the Ituango hydroelectric power plant", Electric Power Systems Research, Vol. 110, pp. 94 - 103, May 2014. [Online: February 2014] doi: 10.1016/j.epsr.2013.12.016
JCR-JIF: 1,749 Q2 (2014); 4,300 Q2 (2025) - SJR: Q1 (2014); 1,192 Q1 (2025)

show 24 journal publications

Projects

show 6 projects

Ph.D. Thesis

Developed:

D.A. Tejada, "Co-optimization of energy storage technologies in tactical and strategic planning models", PhD. dissertation, Comillas Pontifical University, Madrid, Spain, 2019.

show 1 Ph.D. Thesis

Conference Papers

show 14 conference papers

Books and Book Chapters

show 3 books and book chapters

International Exchanges

Oct - Dec 2018, Energy Transition Studies, ECN part of TNO. Amsterdam (Netherlands).

show 1 international exchanges

Invited Conferences and Seminars

Conference "Power-based generation expansion planning for flexibility requirements" 14th Workshop on Industrial Systems and Energy Technologies - JOSITE'2019. Instituto de Investigación Tecnológica. Universidad Pontificia Comillas. Madrid (Spain). May 2019.
Conference "Optimizing storage operations in transmission-constrained networks for medium-and long-term operation" 11th Workshop on Industrial Systems and Energy Technologies - JOSITE'2016. Instituto de Investigación Tecnológica. Universidad Pontificia Comillas. Madrid (Spain). May 2016.
Seminar "Challenges of the Colombian electricity system in the electrical and energy planning" Aula de Investigación. Universidad Pontificia Comillas. Madrid (Spain). Mar 2015.

show 3 invited conferences and seminars

Technical Reports

show 4 technical reports

Working Papers

show 2 working papers

External Training Courses

"Live Class on Latin American power sector regulation", in On-line Course on Regulation of the Power Sector. Florence School of Regulation y Universidad Pontificia Comillas, Feb 2018.

show 1 external training courses

Fellowships and Awards

"4th EASE Student Award for his PhD thesis «Co-Optimisation of energy storage technologies in tactical and strategic planning models »". European Association for Storage of Energy (EASE). Brussels (Belgium). Nov 2019.

show 1 fellowships and awards

Other Activities

Reviewer in "IEEE Transactions on Smart Grid". Institute of Electrical and Electronics Engineers Inc. - IEEE. Piscataway (United States of America). Nov 2017.
Reviewer in "International Journal of Electrical Power & Energy Systems - IJEPES". Elsevier SCI Ltd. Oxford (United Kingdom). Jan - Dec 2017.
Reviewer in "IEEE Transactions on Power Systems". Institute of Electrical and Electronics Engineers Inc. - IEEE. Piscataway (United States of America). Jun 2016 - Nov 2017.
Reviewer in "IET Generation, Transmission and Distribution". The Institution of Engineering and Technology (IET). Hertford (United Kingdom). May - Aug 2016.

show 4 other activities

Dr. Diego Alejandro Tejada Arango

Highlighted Publications

Journal Publications

D.A. Tejada, A. Siddiqui, S. Wogrin, E. Centeno, "A review of energy storage system legislation in the US and the European Union", Current Sustainable/Renewable Energy Reports, Vol. 6, nº. 1, pp. 22 - 28, March 2019. [Online: January 2019] doi: 10.1007/s40518-019-00122-7 SJR: 0,888 Q1 (2025)

Projects

Ph.D. Thesis

Developed:

Conference Papers

Books and Book Chapters

International Exchanges

Oct - Dec 2018, Energy Transition Studies, ECN part of TNO. Amsterdam (Netherlands).

Invited Conferences and Seminars

Conference "Power-based generation expansion planning for flexibility requirements" 14th Workshop on Industrial Systems and Energy Technologies - JOSITE'2019. Instituto de Investigación Tecnológica. Universidad Pontificia Comillas. Madrid (Spain). May 2019.

Conference "Optimizing storage operations in transmission-constrained networks for medium-and long-term operation" 11th Workshop on Industrial Systems and Energy Technologies - JOSITE'2016. Instituto de Investigación Tecnológica. Universidad Pontificia Comillas. Madrid (Spain). May 2016.

Seminar "Challenges of the Colombian electricity system in the electrical and energy planning" Aula de Investigación. Universidad Pontificia Comillas. Madrid (Spain). Mar 2015.

Technical Reports

Working Papers

External Training Courses

"Live Class on Latin American power sector regulation", in On-line Course on Regulation of the Power Sector. Florence School of Regulation y Universidad Pontificia Comillas, Feb 2018.

Fellowships and Awards

"4th EASE Student Award for his PhD thesis «Co-Optimisation of energy storage technologies in tactical and strategic planning models »". European Association for Storage of Energy (EASE). Brussels (Belgium). Nov 2019.

Other Activities

Reviewer in "IEEE Transactions on Smart Grid". Institute of Electrical and Electronics Engineers Inc. - IEEE. Piscataway (United States of America). Nov 2017.

Reviewer in "International Journal of Electrical Power & Energy Systems - IJEPES". Elsevier SCI Ltd. Oxford (United Kingdom). Jan - Dec 2017.

Reviewer in "IEEE Transactions on Power Systems". Institute of Electrical and Electronics Engineers Inc. - IEEE. Piscataway (United States of America). Jun 2016 - Nov 2017.

Reviewer in "IET Generation, Transmission and Distribution". The Institution of Engineering and Technology (IET). Hertford (United Kingdom). May - Aug 2016.

D.A. Tejada, A. Siddiqui, S. Wogrin, E. Centeno, "A review of energy storage system legislation in the US and the European Union", Current Sustainable/Renewable Energy Reports, Vol. 6, nº. 1, pp. 22 - 28, March 2019. [Online: January 2019] doi: 10.1007/s40518-019-00122-7
SJR: 0,888 Q1 (2025)