Smart and Green Networks Research Group
Área de Redes Inteligentes Sostenibles (REDES)
Research topics related with Green Energy Integration
Long-term energy prospective
Distributed energy resources (DER) and removable energy sources (RES) integration
Design of ancillary service markets
This research group has participated in different national and European projects on energy prospective in the
medium and long term. The focus of these analyses is the impact of renewable energy sources on the power
system, from a technical, economic and regulatory point of view. Another key topic considered in the analysis
has been the impact of renewable energy sources on the reliability of supply and required operational reserves.
Among the alternatives for improving the penetration of renewable generation into the power system this research
group has presented different market proposals for the procurement of ancillary services (voltage control and
Projects related with Green Energy Integration
DSO Observatory: Study and systematic investigation for distribution system operators in the field of smart grid project development, developed for: European Commission - Joint Research Center / IET.
Beyond state-of-the-art technologies for re-powering ac corridors & multi-terminal hvdc systems, developed for: Comisión Europea.
Impact assessment of the connection of gas based micro-cogeneration in electric distribution networks, developed for: ENI.
Post 2020 framework in a liberalised electricity market with large share of Renewable Energy Sources, developed for: Comisión Europea.
ERRA-MEDREG Training Course on Economic and technical aspects of the deployment of renewable energy sources (RES), developed for: ERRA-MEDREG.
The Utility of the Future, developed for: MIT (Massachusetts Institute of Technology).
Power networks. Technology, economics and regulation: book chapter for AECYA, developed for: Academia Europea de Ciencias y Arte.
Building the European internal market for gas and electricity, developed for: Fundación de las Cajas de Ahorro (FUNCAS).
The utility of the future study, developed for: Enel.
SUSTAINABLE: Smart distribution system operation for maximizing the integration of renewable generation, developed for: Comisión Europea.
ADVANCED: Active Demand Value and Consumer Experience Discovery, developed for: Comisión Europea.
PV GRID: Reducing barriers hampering large-scale integration of PV electricity into the distribution GRID, developed for: Comisión Europea.
GridTech: impact assessment of new technologies to foster RES-electricity integration into the European transmission system, developed for: Comisión Europea.
Large-scale demonstration of smart electricity distribution networks with distributed generation and active customer participation, developed for: Comisión Europea.
Field current tests of a new alternator design, developed for: SERTECOR.
European renewable energy network, developed for: Parlamento Europeo.
PRICE-GDI: Joint Project of smart grids in the Corredor del Henares area: Distributed Generation management, developed for: Ministerio de Ciencia e Innovación.
Smart grids: Book of the Fundacion Gas Natural , developed for: Fundación Gas Natural.
Analysis of the impact of wind power on future electricity prices in Spain, developed for: Acciona.
Transmission system operation with large penetration of wind and other renewable electricity sources in networks by means of innovative tools and Integrated Energy Solutions, developed for: Comisión Europea.
MERGE - Mobile Energy Resources in Grids of Electricity, developed for: Comisión Europea.
Optimal integration of distributed energy resources, developed for: Ministerio de Ciencia e Innovación.
Technology trends and economic impact of renewable energy sources in 2020-2030, developed for: Iberdrola.
Technological surveillance in Active Demand Management and Distributed Generation Technologies, developed for: Iberdrola, ITE.
Technical advice for development of a R+D+I project: Stage 1, developed for: Iberdrola Renovables.
SUSPLAN: Development of regional and Pan-European guidelines for more efficient integration of renewable energy into future infrastructure, developed for: Comisión Europea.
Improvement of the Social Optimal Outcome of Market Integration of DG/RES in European Electricity Markets, developed for: Comisión Europea.
Load and distributed generation forecasting for an efficient management of distribution networks, developed for: Everis.
Future scenarios within the Framework DENISE (Intelligent, Secure and Efficient distribution of electricity), developed for: Endesa Servicios.
Wind energy trading in the new context of the electricity market in Spain, developed for: Iberdrola.
Renewable electricity supply interactions with conventional power generation, networks and demand, developed for: Comisión Europea.
Technical and economical study on logistic centers of biomass in the autonomous region of Madrid, developed for: Gamesa Energía.
SOLID-DER: Coordinated action to consolidate RTD activities for large scale integration of DER into the European electricity market, developed for: Comisión Europea.
DG-GRID - Enhancement of sustainable electricity supplythrough improvements of the regulatory framework of the distribution network for DG, developed for: Comisión Europea.
Virtual Balkan Power Centre for advance of renewable energy sources in Western Balkans, developed for: Comisión Europea.
Feasibility study of CO2 capture and sequestration technologies in Spain and a case study, developed for: BESEL, S.A..
Technical analysis of a high renewable energy penetration into the Spanish electricity generation system, developed for: GREENPEACE España.
Feasibility study of energy crop bioethanol production and production and utilizacion as transport fuel, developed for: Abengoa Bioenergía.
External cost internalization of bioethanol to be used as transport fuel, developed for: Ministerio de Ciencia y Tecnología.
Economic impact on wind power generation of the valley hours limitation, developed for: Energía Hidroeléctrica de Navarra, S.A..
The impact of the development of solar photovoltaic energy on Iberdrola´s markets and networks, developed for: Iberdrola.
Conference Papers related with Green Energy Integration
C. Calvillo, A. Sánchez, J. Villar, "Evaluation and optimal scaling of distributed generation systems in a smart city", 8th International Conference on Urban Regeneration and Sustanability. ISBN: 978-1-84564-746-9, pp. 845-857, Putrajaya, Malaysia, 3-5 December 2013
C. Calvillo, A. Sánchez, J. Villar, "Distributed energy generation in smart cities", 2nd International Conference on Renewable Energy Research and Applications - ICRERA 2013. ISBN: 978-1-4799-1464-7, pp. 161-166, Madrid, Spain, 20-23 October 2013
R. Moreno, H.R. Chamorro, S. Izadkhast, "A framework for the energy aggregator model", 2013 Workshop on Power Electronics and Power Quality Applications -PEPQA. pp. 1-5, Bogotá, Colombia, 6-7 July 2013
C. Fernandes, M. Vallés, P. Frías, "Economic assessment of using FACTS technology to integrate wind power: a case study", PowerTech 2013. Grenoble, France, 16-20 June 2013
D. Fitiwi, F. de Cuadra, L. Olmos, M. Rivier, I.J. Pérez-Arriaga, "A formulation for large-scale transmission expansion planning problem and a solution strategy", IEEE 10th International conference on the european energy market - EEM2013. Estocolmo, Sweden, 28-30 May 2013
L. González, C. Mateo, T. Gómez, J. Reneses, M. Rivier, A. Sánchez, "Assessing the impact of distributed generation on energy losses using reference network models", Cigrè International Symposium on The Electric Power System of the Future: Integrating Supergrids and Microgrids. Bolonia, Italy, 13-15 September 2011
R. Cossent, T. Gómez, J. Peças, "Does distributed generation require new regulatory tools? A comparative analysis of distribution network regulation in Spain and Portugal", 17th Power Systems Computation Conference - PSCC'11. Estocolmo, Sweden, 22-26 August 2011
C. Mateo, T. Gómez, A. Sánchez, A. Candela, L. Maqueda Hernando, "Large-scale planning models to assess economies of scale in distribution grids in the presence of distributed generation", 17th Power Systems Computation Conference - PSCC'11. Estocolmo, Sweden, 22-26 August 2011
C. Fernandes, P. Frías, "Impact of intermittent generation on the expansion of the spanish power system interconnection capacity", IEEE PES Trondheim PowerTech 2011. ISBN: 978-1-4244-8419-5, Trondheim, Norway, 19-23 June 2011
M. Stadler, I. Momber, O. Mégel, T. Gómez, C. Marnay, S. Beer, J. Lai, V. Battaglia, "The added economic and environmental value of plug-in electric vehicles connected to commercial building microgrids", 2nd European Conference SmartGrids & E-Mobility. ISBN: 978-3-941785-14-4, pp. 5-13, Bruselas, Belgium, 20-21 October 2010
T. Gómez, "Enabling the uptake of distributed generation", Markets and Regulation: financing the Smart Grid. Madrid, Spain, 27-28 September 2010
J. García-González, J.L. Mata, R. Veguillas, "Improving the integration of renewable sources in the European electricity networks", 2010 IEEE Power and Energy Society General Meeting. ISBN: 978-1-4244-6549-1, pp. 1-2, Minneapolis, USA, 25-29 July 2010
T. Gómez, "Benefits of smart DER integration", 2010 Symposium on Microgrids. Vancouver, Canada, 20-21 July 2010
P. Frías, P. Linares, T. Gómez, "Economic impact of 2020 renewable energy scenarios on the Spanish electricity market", 7th Conference on the European Energy Market - EEM10. Madrid, Spain, 23-25 June 2010
C. Fernandes, P. Frías, L. Olmos, A. Ramos, T. Gómez, "A long-term prospective for the Spanish electricity system", 7th Conference on the European Energy Market - EEM10. ISBN: 978-1-4244-6838-6, Madrid, Spain, 23-25 June 2010
R. Cossent, L. Olmos, T. Gómez, C. Mateo, P. Frías, "Mitigating the impact of distributed generation on distribution network costs through advanced response options", 7th Conference on the European Energy Market - EEM10. ISBN: 978-1-4244-6838-6, Madrid, Spain, 23-25 June 2010
C. Fernandes, P. Frías, L. Olmos, A. Ramos, T. Gómez, "Economic impact of plug-in hybrid electric vehicles on power systems operation", 33rd IAEE International Conference. Río de Janeiro, Brazil, 6-9 June 2010
T. Gómez, "Benefits of smart DER integration into electricity distribution grids", CADER Conference 2010. San Diego, USA, 28-29 April 2010.
L. Rouco, "Wind power generation: Generator technology Vs. Grid integration", Cigré Study Committee A1 Meeting 2009. Sidney, Australia, 20-25 September 2009
E. Lobato, "Mastering renewables energies by combined wind and conventional energy production in Spain", Smartgrids ERA-NET Workshop Electrosuisse. Berna, Switzerland, 16 September 2009
L. Olmos, T. Gómez, E. Lobato, R. Cossent, "Policy and Regulatory Changes for T&D networks to facilitate the integration of high shares of Wind, PV and CHP in the Supply system", 10th International Association for Energy Economics European Conference (IAEE): "Energy, Policies and Technologies for Sustainable Economies". Viena, Austria, 7-10 September 2009
J. García-González, T. Gómez, J. Rivier, P. Ostos, "Optimal strategies for selling wind power in mid-term energy auctions", 2009 IEEE PES General Meeting. Calgary, Canada, 26-30 July 2009
L. Olmos, E. Lobato, T. Gómez, "Increasing integration of variable RES-E: Policy and regulatory measures for T&D networks", 6th International Conference on the European Energy Market - EEM'09. Leuven, Belgium, 27-29 May 2009
R. Cossent, L. Olmos, T. Gómez, "Case studies of system costs on DSO level", SmartGrids 2009. Proyecto IMPROGRES. Salzburgo, Austria, 12-13 May 2009
E. Lobato, L. Olmos, T. Gómez, R. Cossent, F.M. Andersen, P.E. Grohnheit, P. Mancarella, P. Pudjianto, G. Strbac, A. van der Welle, F. van Oostvoorn, "Barriers in the implementation of response options aimed at mitigating unpredictability and variability of wind energy", European Wind Energy Conference - EWEC 2009. Marsella, France, 16-19 March 2009
A. Ramos, L. Olmos, J.M. Latorre, I.J. Pérez-Arriaga, "Modeling medium term hydroelectric system operation with large-scale penetration of intermittent generation", XIV Congreso Latino Ibero Americano de Investigación de Operaciones - CLAIO 2008. ISBN: 978 958 825283-4. Asociación Latino-Americana de Investigación de Operaciones. ISBN: 978-958-825283-4, Cartagena de Indias, Colombia, 9-12 September 2008
T. Gómez, "Integration of distributed generation on distribution networks. Regulatory issues:an European perspective", Seminario: A Logical and EDP forum for InovGrid. Lisboa, Portugal, 26 May 2008
P. Frías, T. Gómez, R. Cossent, "Overview of costs and benefits and regulatory improvements needed for more DER integration in EU", i-SUP 2008 - Innovation for Sustainable Production. Flemish Institute for Technological Research. Brujas, Belgium, 22-25 April 2008
T. Gómez, "Integración de la generación distribuida. Proyecto DG_GRID: Interacción DSO/DG", Seminario UCUF: Aula Calidad, Medioambiente e I+D. Madrid, Spain, 24 January 2008
P. Frías, T. Gómez, J. Rivier, "Regulation of distribution system operators with high penetration of distributed generation", Power Tech 2007. Lausanne, Switzerland, 1-5 July 2007
J. Rivier, V. Méndez, T. Gómez, "Limits in the integration of wind farms in the Spanish wholesale electrical market", Sixth International Workshop on Large-Scale Integration of Wind Power and Transmission Networks for Offshore Wind Farms. Pp. 60-65. Delft, Netherlands, 26-28 October 2006
B. Cova, E. Lobato, L. Olmos, J. Karacsyoni, C. Skerk, "Methodology of estimation of future investments in interconnection capacity within the Enlarged European Union", 11th International Energy Conference & Exhibition (ENERGEX'06). Stavanger, Norway, 12-15 June 2006
P. Frías, T. Gómez, J. Rivier, "DG network integration. Regulatory review and international comparison of EU-15 MS", Virtual Balkan Power Centre (VBPC), Workshop 2.3. Skopje, Macedonia, 2-3 March 2006
Journal Publications related with Green Energy Integration
J.P. Chaves, C. Fernandes, "The Spanish intraday market design: A successful solution to balance renewable generation?", Renewable Energy. vol. 74, pp. 422-432, February 2015. [Online: September 2014] 10.1016/j.renene.2014.08.017 JCR impact factor 3.361 (2013) - CIRC: A
I. Boie, C. Fernandes, P. Frías, M. Klobasa, "Efficient strategies for the integration of renewable energy into future energy infrastructures in Europe - an analysis based on transnational modeling and case studies for nine European regions", Energy Policy. vol. 67, pp. 170-185, April 2014. [Online: January 2014] 10.1016/j.enpol.2013.11.014 JCR impact factor 2.696 (2013) - CIRC: EX
F.J. Becerro González, P. Frías, A. Junquera Delgado, "Integración de plantas termosolares en ciclos combinados. Hibridación de fuentes renovables y fósiles en la generación eléctrica", Anales de Mecánica y Electricidad. vol. XC, no. VI, pp. 27-32, December 2013.
I. Fernández, C. Calvillo, A. Sánchez, J. Boal, "Capacity fade and aging models for electric batteries and optimal charging strategy for electric vehicles", Energy. vol. 60, pp. 35-43, October 2013. [Online: September 2013] 10.1016/j.energy.2013.07.068 JCR impact factor 4.159 (2013) - CIRC: EX
J.P. Chaves, R.A. Hakvoort, A. Ramos, "Short-term strategies for dutch wind power producers to reduce imbalance costs", Energy Policy. vol. 52, pp. 573-582, January 2013. 10.1016/j.enpol.2012.10.011 JCR impact factor 2.696 (2013) - CIRC: EX
C. Fernandes, P. Frías, L. Olmos, "Expanding interconnection capacity to integrate intermittent generation in the Iberian Peninsula", IET Renewable Power Generation. vol. 7, no. 1, pp. 45-54, January 2013. 10.1049/iet-rpg.2012.0151 JCR impact factor 2.280 (2013) - CIRC: EX
D. Trebolle, P. Frías, J.M. Maza Ortega, J. Tello, A. Rodriguez, "El control de tensión en redes de distribución con generación distribuida (III)", Anales de Ingeniería Mecánica. vol. LXXXIX, no. III, pp. 11-18, August 2012.
P. Sánchez, G. Sánchez González, G. Morales-España, "Direct load control decision model for aggregated EV charging points", IEEE Transactions on Power Systems. vol. 27, no. 3, pp. 1577-1584, August 2012. 10.1109/TPWRS.2011.2180546 JCR impact factor 3.530 (2013) - CIRC: EX
D. Trebolle, P. Frías, J.M. Maza Ortega, J. Tello, "El control de tensión en redes de distribución con generación distribuida (II)", Anales de Mecánica y Electricidad. vol. LXXXIX, no. II, pp. 11-19, May 2012.
E. Saiz, J. García-González, J. Barquín, E. Lobato, "Economic assessment of the participation of wind generation in the secondary regulation market", IEEE Transactions on Power Systems. vol. 27, no. 2, pp. 866-874, May 2012. 10.1109/TPWRS.2011.2178618 JCR impact factor 3.530 (2013) - CIRC: EX
S. Beer, T. Gómez, D. Dallinger, I. Momber, C. Marnay, M. Stadler, J. Lai, "An economic analysis of used electric vehicle batteries integrated into commercial building microgrids", IEEE Transactions on Smart Grid. vol. 3, no. 1, pp. 517-525, March 2012. 10.1109/TSG.2011.2163091 JCR impact factor 4.334 (2013)
D. Trebolle, P. Frías, J.M. Maza Ortega, J.L. Martínez Ramos, "El control de tensión en redes de distribución con Generación Distribuida (I)", Anales de Mecánica y Electricidad. vol. LXXXIX, no. I, pp. 21-28, February 2012.
R. Cossent, T. Gómez, L. Olmos, "Large-scale integration of renewable and distributed generation of electricity in Spain: current situation and future needs", Energy Policy. vol. 39, no. 12, pp. 8078-8087, December 2011. 10.1016/j.enpol.2011.09.069 JCR impact factor 2.696 (2013) - CIRC: EX
T. Gómez, I. Momber, M. Rivier, A. Sánchez, "Regulatory framework and business models for charging plug-in electric vehicles: infrastructure, agents, and commercial relationships", Energy Policy. vol. 39, no. 10, pp. 6360-6375, October 2011. 10.1016/j.enpol.2011.07.037 JCR impact factor 2.696 (2013) - CIRC: EX
L. Olmos, R. Cossent, E. Lobato, T. Gómez, "Barriers to the implementation of response options aimed at mitigating the impact of wind power on electricity systems", Wind Energy. vol. 14, no. 6, pp. 781-795, September 2011. 10.1002/we.439 JCR impact factor 2.556 (2013) - CIRC: EX
R. Cossent, L. Olmos, T. Gómez, C. Mateo, P. Frías, "Distribution network costs under different penetration levels of distributed generation", European Transactions on Electrical Power. vol. 21, no. 6, pp. 1869-1888, September 2011. 10.1002/etep.503 JCR impact factor 0.631 (2013) - CIRC: A
C. Fernandes, P. Frías, "Análisis del impacto en España de la generación renovable en el periodo 2020-2050", Anales de Mecánica y Electricidad. vol. LXXXVIII, no. II, pp. 13-19, April 2011.
A. Arenas, T. Gómez, C. Baquero , "Modelo de negocio para el suministro integral de energía a edificios de viviendas en áreas urbanas", Anales de Mecánica y Electricidad. vol. LXXXVII, no. V, pp. 60-68, October 2010.
D. Soler, P. Frías, T. Gómez, C.A. Platero, "Calculation of the elastic demand curve for a day-ahead secondary reserve market", IEEE Transactions on Power Systems. vol. 25, no. 2, pp. 615-623, April 2010. 10.1109/TPWRS.2009.2033604 JCR impact factor 3.530 (2013) - CIRC: EX
P. Frías, R. Cossent, T. Gómez, "How traditional regulation of Distribution System Operators can be improved to accommodate higher levels of distributed generation", Modern Energy Review. vol. 2, no. 1, pp. 102-104, March 2010.
P. Linares, P. Frías, T. Gómez, "Evaluación del potencial de las diversas fuentes de energía renovable y de las tecnologías para su aprovechamiento: oportunidades y retos para el sector de la energía", Nota d'Economia. no. 95-96, pp. 89-101, January 2010.
T. Gómez, ""Special Issue on the 16th Power Systems Computation Conference (PSCC), 2008", Edited by Tomas Gomez, Wolfram H. Wellssow and Tharam Dillon", International Journal of Electrical Power & Energy Systems. vol. 31, no. 9, pp. 427-576, October 2009.
JCR impact factor 3.432 (2012) - CIRC: EX
P. Frías, T. Gómez, D. Soler, "A reactive power capacity market using annual auctions", IEEE Transactions on Power Systems. vol. 23, no. 3, pp. 1458-1468, August 2008. 10.1109/TPWRS.2008.922650 JCR impact factor 3.530 (2013) - CIRC: EX
A. Fabbri, T. Gómez, J. Rivier, V. Méndez, "Assessment of the cost associated with wind generation prediction errors in a liberalized electricity market", IEEE Transactions on Power Systems. vol. 20, no. 3, pp. 1440-1446, August 2005.
JCR impact factor 3.530 (2013) - CIRC: EX
J. Riesco, P. Romera, P. Linares, "Central solar fotovoltaica de la Universidad Pontificia Comillas. Monitorización y difusión en la web", Era Solar. vol. 111, pp. 26-31, November 2002.
S. Izadkhast, P. García-González, P. Frías, "An aggregate model of plug-in electric vehicles for primary frequency control", IEEE Transactions on Power Systems. [Online: August 2014] 10.1109/TPWRS.2014.2337373 JCR impact factor 3.530 (2013) - CIRC: EX
C. Eid, J. Reneses, P. Frías, R.A. Hakvoort, "The economic effect of electricity net-metering: consequences for network cost recovery, cross subsidies and policy objectives", Energy Policy. [Online: October 2014] 10.1016/j.enpol.2014.09.011 JCR impact factor 2.696 (2013) - CIRC: EX
Books and Book chapters related with Green Energy Integration
P. Frías, P. Linares, T. Gómez, "Análisis prospectivo general", en Tratado de energías renovables. Vol. 1: Aspectos socioeconómicos y tecnológicos. Editores Sánchez Galán, I.; Becker Zuazua, F.; Cazorla Prieto, L.M. y Martínez-Simancas Sánchez, J.. Ed. Aranzadi. Pamplona, Spain, 2010.
M. Rivier, I.J. Pérez-Arriaga, P. García-González, T. Gómez, L. González, C. Mateo, L. Olmos, A. García-Cerrada, "El papel de la electricidad en el futuro modelo energético", en El Ingeniero del ICAI y el desarrollo sostenible. Editores Sancha Gonzalo, J.L. et al.. Ed. Asociación Nacional de Ingenieros del ICAI. Madrid, Spain, 2009.
J. Montes, M.M. Cledera-Castro, M. Tejero, A. García-Cerrada, "Recursos y tecnologías energéticas con energías renovables para la producción de electricidad", en El Ingeniero del ICAI y el desarrollo sostenible. Editores Sancha Gonzalo, J.L. et al.. Ed. Asociación Nacional de Ingenieros del ICAI. Madrid, Spain, 2009.