Procuring Energy Efficient Rolling Stock - SBB Experiences Markus Halder, SBB Energy Management Copenhagen, 2016 May 17
29.9 l/100km 29.4 l/100km 30.5 30.5 l/100km l/100km 29.9 l/100km
Agenda. Procuring Energy Efficent Rolling Stock. 1. Challenges and Objectives 2. Methodology according to TecRec 100_001 / pren 50591 3. Experiences at SBB SBB Infrastruktur I-ET-EM 02.05.13 3
Challenges and Objectives 4
Challenges for Procuring Energy Efficient Rolling Stock. Railway rolling stock not a mass product (like cars, refrigerators, ). Too detailed specification of solutions can be a barrier for innovation and system optimisation. High costs for tenders each specification is different. LCC approach vs. investment price. Legal issues, specially with bonus/malus contracts. SBB Infrastruktur I-ET-EM 02.05.13 5
Objectives of a standardised methodology. Facilitating procurement process. Reducing costs for sector (industry and operator) in the process of specification, tendering, verification/acceptance. Setting incentives for energy efficiency. Energy efficient solutions are rewarded. Enforcing competition and innovation. Specifying intended service not solutions. Manufacturer can optimise the vehicle for needed service profile. SBB Infrastruktur I-ET-EM 02.05.13 6
Methodology according to pren 50591.
Specification and verification of energy consumption for railway rolling stock History of standardisation. 2004: UIC Feasibility Study «Energy Consumption Standards for New Rolling Stock». 2007-09: EU Railenergy WP 2.2 «Standard Operational Profiles» 2010: UIC-UNIFE TecRec 100_001 2013 : Conversion to CLC/TS 50591 (minor adjustments). 11/2015-Mid 2017: Conversion to EN 50591. Working group consists of 3 Operators, 3 Vehicle Integrators, 3 Research institutes / consultants from 6 countries (FR, CH, NL, DE, SP, IT). Good progress in all areas, HVAC-methodology will be revised and aligned with new EN13129. SBB Infrastruktur I-ET-EM 02.05.13 8
Methodology / Process according to EN 50591. Purchaser Reference to Energy Efficiency in Invitation to Tender Specification of Service Profile - Infrastructure description - Operational requirements (e.g. timetable data) Evaluation of tender according to LCC Contract Verification (energy consumption measurement) Consequences according to contract (e.g. Bonus/Malus/ possibility for further optimisation) Simulation of energy consumption Tender Construction of vehicle Manufacturer Defined in EN 50591 Individual procurement/ contractual issues (out of scope of EN 50591) Online course for applying methodology: www.railenergy.eu/elearningtecrec 9
Experiences at SBB.
Application of methodology in procurement processes. Vehicle Service Profile Regional traffic double deck train (Stadler): Long distance traffic double deck train (BT) Line: Brugg-Winterthur-Brugg, Defined Timetable of S-Train line S12. St. Gallen Brig St. Gallen, Defined Timetable. Giruno (Stadler) Shunting (Alstom) and construction service vehicles (Windhoff). Bern Zürich Bern, Defined Timetable (incl. passing times). Defined reference work profile for typical use cases. 11
Experiences made by applying the methodology. Comparable, standardized approach facilitates the procurement process. Allows to decide on life cycle costs (LCC). Industry on a learning curve to give better simulations. Ensures optimization of energy efficiency of new rolling stock for intended service. Sets clear incentives for industry to innovate in energy efficiency, e.g. forced feedback on drivers lever for dedicated use of recuperation brake (Stadler) permanent magnet motor, complete switch-off during standstill with remote wake-up (BT) bi-modal (diesel/electric) with two diesel power generators, coupled with an automatic start-stop system (Alstom) 12
Learnings SBB. Documentation required for plausibility check: e.g. assumed driving style has to be documented. Definition of passing times, if needed due to operational needs. Challenge to do verification measurements: Difficult to find a slot to drive the given timetable in networks with dense traffic and maintenance work during night. Little experience with shunting projects: Definition of realistic reference profile which can be verified. HVAC measurements challenging (reproducibility, reflection of real conditions). 13
EN 50591 for higher energy efficiency. Just use it! 14