Page 8 - Innovation in energy management: contribution of railways to sustainable mobility
P. 8


                  Spain is currently immersed in a period of energy transition with established and binding
                  decarbonisation objectives for the economy for 2030 and 2050 that affect all sectors, and
                  therefore transport. In this process, the public sector will play an essential role in designing
                  policies and mechanisms to address the challenges to be faced in the coming decades.

                  During the last five years, the technological activity in the field of energy on the railway
                  sector has been especially important, both in terms of the development of technological
                  projects as well as on the application of effective solutions for energy efficiency. In relation
                  to the projects, technological initiatives of significant importance and impact for the sector
                  have been developed (and continue to be developed). Specifically, since November 2016,
                  more  than  fifteen  projects  have  taken  place  with  the  participation  of  different  national
                  agents, evidencing the extensive activity of the sector in this field.

                  Regarding  energy  efficiency  initiatives  and  solutions,  all  railway  administrators  and
                  operators have new plans (or updates of previous ones) for energy efficiency at company
                  level.  In  the  case  of  electricity  consumption,  considering  that  more  than  70%  of  this
                  consumption is used for traction electricity, the implementation of saving measures in this
                  area has been, and continues to be, very effective.

                  DC RAILWAY SERVICES

                  Focusing the analysis on DC electrical infrastructure, the most widely used in the Spanish
                  railway,  highlights  the  penetration  of  energy  recovery  technology  in  electrical  traction
                  substations.  Companies  such  as  ADIF,  Metro  de Madrid or  TMB continue  to  install  this
                  technology in their networks.

                  On the other hand, operators have continued to evolve and implement energy optimisation
                  modules in their ATO systems. Thus, for example, FGC will implement an ATO system with
                  an efficient driving module in 2023.

                  In general, the promotion of a culture of energy efficiency within the driving staff through
                  the training of drivers and the preparation and distribution of manuals of good practices to
                  carry out efficient driving, are other positive actions.

                  One  aspect  of  significance  refers  to  the  progressive  use  of  electric  traction  by  freight
                  operators. It is worth mentioning here the FGC initiative which, from mid-2022, will begin
                  to  change  its  diesel  locomotives  for  the  transport  of  goods  for  dual  electric  and  diesel
                  traction  locomotives,  with  savings  of  70%  in  emissions.  Additionally,  some  private
                  operators have begun to introduce electric locomotives with the latest technology.

                  AC RAILWAY SERVICES
                  An independent area of analysis would be that of railway services that use AC systems, such
                  as high-speed. These are very efficient services from an energy point of view (use higher
                  electrical  voltage  and  electrical  regeneration  without  the  need  to  specify  energy
                  recuperators in the traction substations). However, they are responsible for 45% of the
                  General Interest Rail Network (RFIG)'s total traction electricity consumption, which is why

                           Position paper: Innovation in energy management: contribution of railways to sustainable mobility
   3   4   5   6   7   8   9   10   11   12   13