Electro-diesel multiple unit

Hybrid overhead line-/fossil fuel engine-powered passenger train

Not to be confused with Diesel-electric multiple unit (DEMU).

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SNCF Class B 81500, an example of an electro-diesel multiple unit

An electro-diesel multiple unit (EDMU) or bi-mode multiple unit (BMU) is a form of a multiple unit train that can be powered either by electric power picked up from the overhead lines or third rail (like an electric multiple unit – EMU) or by using an onboard diesel engine, driving an electric generator, which produces alternating current (AC) or direct current (DC) electric power (like a diesel-electric multiple unit – DEMU).[1][2]

## List of EDMUs

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This section needs expansion. You can help by adding to it. (September 2019)

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### Asia

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#### China

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China Railway CR200J-SG Fuxing high-speed train is a power-concentrated electro-diesel (bi-mode) multiple unit specifically designed for plateau operation. Each train consists of HXD1D-J electric locomotive (power car) at one end, FXN3-J two-unit diesel locomotive (two power cars) at another end, and 9 25-T passenger coaches between them. Electric and diesel power cars have their own independent traction motor systems, but can be operated from cabs of each other. HXD1D-J is a special version of HXD1D electric locomotive manufactured by CRRC Zhuzhou Locomotive and FXN3-J is a special version of a FXN3 locomotive manufactured by CRRC Dalian – both of them have changed body design and are adapted for joint operation as part of a train.[3][4] These trains are served on Sichuan–Tibet railway.[5]

### Oceania

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#### Australia

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NSW TrainLink Regional Train Project is building 117 bi-mode R set carriages (1.5 kV DC) to replace its diesel fleet of interstate and regional XPT, Xplorer and Endeavour trainsets to be delivered by CAF from 2023.

### Europe

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#### France

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SNCF B 82500 BMU

Bombardier has built dual-mode variants of its AGC series[6] for the French operator SNCF; the electricity is collected by means of a pantograph.

* B 81500 – multiple unit trains using 1.5 kV DC catenary. In service since 2005.
* B 82500 – multiple unit trains using both 1.5 kV DC and 25 kV AC catenary. In service since October 2007.
* Alstom Régiolis (B 83500, B 84500, B 85000, B 85900). In service since April 2014 (B 83500 and B 84500).

#### Italy

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* BTR 813,[7] first electro-diesel version of the Stadler Flirt, service in the Valle d'Aosta region[8] since October 2019.

#### Netherlands

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* 18 bi-mode units of the Stadler WINK have entered service in 2021 with Arriva Netherlands. In addition to electric and diesel propulsion, these trains can also run on battery power.[9]

#### Norway

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* 14 bi-modal variants of the Stadler Flirt trains, called Norske Tog Class 76 [no][10] in Norway, held by the state owned Norske Tog and operated by the line operator SJ AB (as SJ Nord) entering service in 2021.[11] This class is used on the regional train services around Trondheim.

#### Poland

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EN63H West Pomerian Voivodeship operated by Polregio

* Newag Impuls is offered in electro-diesel (hybrid) version.[12] The first units were delivered to West Pomeranian Voivodeship and started regular revenue service in early 2021.[13]

#### Russia

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* DT1 (ДТ1) Russian-gauge multiple unit. In service since 2009.

#### Spain

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Renfe Class 730

Renfe Class 730 – a bi-mode subversion of Renfe Class 130, a dual-gauge, dual-voltage high-speed power-concentrated electric multiple unit, a part of Talgo 250 family. In 2012, 15 original Class 130 trainsets were modified to Class 730 by replacing their end passenger coaches with diesel-generator cars. Each train consists of 13 cars, including 2 electric locomotive-like power cars, 2 diesel-generator cars and 9 passenger coaches.[14] One train crashed in 2013, another 14 are still in use on Alvia services.[15]

#### United Kingdom

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British Rail Class 802

Electro-diesel multiple units whose electricity source is 25 kV 50 Hz AC overhead line include:

* Hitachi-built British Rail Class 800, Class 802, and Class 805 – high-speed multiple unit used by multiple train operating companies
* British Rail Class 768 – multiple unit converted from Class 319 (with external dual-system/voltage support), for use by Rail Operations Group on parcel services.
* British Rail Class 769 – multiple unit converted from Class 319 (with external dual-system/voltage support), for use on, Northern and Transport for Wales regional services. In service since November 2019.
* Stadler-built British Rail Class 755 – multiple unit for use on Greater Anglia regional services. In service since July 2019 (755/4).[16][17]

### North America

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New Haven #140 "Roger Williams", unique Budd railcar-based train at Danbury Railway Museum, Connecticut

#### United States

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The following were retired from New York City service:

* "Roger Williams" – streamlined 6-car lightweight DMU passenger train, built by Budd Company in 1956 for New York, New Haven and Hartford Railroad; primarily diesel-hydraulic, third-rail electric mode for short-term use only. Three cars preserved.
* GE/Garrett gas turbine MUs – primarily electric, but built with gas turbines to allow operation outside of third rail electrification. All scrapped.

#### Mexico

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* X'Trapolis Tsíimin K'áak – 42 trains ordered for Tren Maya, 32 of which are EDMU[18]

## See also

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* Electro-diesel locomotive

## References

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1. ^ "[UK] Greater Anglia: First FLIRT UK on the tracks for testing". Railcolornews. 15 May 2018.
2. ^ "Bi-mode multiple unit – FLIRT" (PDF). Stadler. "The bi-mode units enable an interruption-free service on electrified and non-electrified lines. The necessary power is generated by diesel engines[…]. When running under catenary the diesel engines can be shut off"
3. ^ "CR200JS-G". china-emu.cn (in Chinese).
4. ^ "CR200JS-G (video)". bilibili.com.
5. ^ "秦岭山间舞小青——内电双源高原动车组宝天铁路精彩亮相". sohu.com (in Chinese). 14 May 2021. Retrieved 13 April 2022.
6. ^ "MITRAC Hybrid The Dual Power Propulsion Chain" (PDF). Bombardier.
7. ^ (in Italian) it:Treno Bimodale Stadler BTR.813
8. ^ "First electro-diesel Flirts ordered". Archived from the original on 2020-11-26. Retrieved 2019-04-11.
9. ^ "WINK-treinen van Arriva gaan 12 april officieel in de dienstregeling rijden".
10. ^ "Bi-mode Multiple Unit – FLIRT Nordic" (PDF). Stadler Rail.
11. ^ "[NO / Expert] Bi-mode Flirt for Norske Tog leaving the Stadler factory [updated]". 28 September 2020.
12. ^ "Hybrid Multiple Unit | NEWAG SA". Newag. Retrieved 14 July 2021.
13. ^ ms (21 January 2021). "Pierwszy dwunapędowy Impuls 2 pojechał z pasażerami [zdjęcia]" [First bi-mode Impuls 2 carried passengers [photos]]. Rynek Kolejowy (in Polish). Retrieved 14 July 2021.
14. ^ "Talgo 250 Dual". talgo.com.
15. ^ "Trayectos y Servicios - clase preferente". Renfe.es (in Spanish).
16. ^ Roden, Andy (8 October 2016). "New trains as Abellio scoops East Anglia franchise". Rail Magazine.
17. ^ Government gives green light for more state-of-the-art intercity trains, Department for Transport, 18 July 2013
18. ^ Fender, Keith (5 September 2023). "Passenger equipment from Britain, US heads to Mexico". Trains. Retrieved 24 November 2023.

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Railway electrification

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