DOST Hybrid Electric Train

The Hybrid Electric Train (HET) is a hybrid electric train built by the Department of Science and Technology's Metals Industry Research and Development Center. The headquarters office is located at Bo. 1, Calamba, Laguna, Philippines.

Hybrid Electric Train
In service2019present
ManufacturerFil-Asia Automotive and Industries
Family nameDOST Hybrid Electric Road Train
Entered service2020present
Number built5 vehicles
Formation5 cars per trainset (1 pilot car, 1 non-rideable power car, 3 passenger cars)
(non-articulated car body)
Fleet numbers30013073 (formerly 001-073)
Capacity175 passengers per car (design load)
220 passengers per car (crash load)
Operator(s)Philippine National Railways
Line(s) served2
Car body constructionMild steel
Train length60 m (200 ft)
Car length12 m (39 ft)
Width2.85 m (9.4 ft)
Height4.432 m (14.54 ft)
Doors2 double-sliding doors on each car
Maximum speed80 km/h (50 mph) (computed)
Weight25.5 t (25,500 kg)
Steep gradient1.2%
Traction systemVVVF
Power output1,250 hp (930 kW)
TransmissionSeries hybrid
Power supply650V DC
Bogies2 H-frame bogies per car
Minimum turning radius50 m (160 ft)
Braking system(s)Regenerative
Track gauge1,067 mm (3 ft 6 in)

It is the first Filipino-made train designed locally with parts imported from abroad. It was officially turned over to the Philippine National Railways on June 20, 2019.


The development of the Hybrid Electric Train (HET) is the project of the Metals Industry Research and Development Center (MIDRC) of the Department of Science and Technology of the Philippine government in partnership with the Philippine National Railways (PNR).[1]

The Hybrid Electric Train project began in 2012, with the designing of the train commencing the following year.[2] The bidding out process for the manufacture of the first train took place in 2013, with the manufacturing of the train taking place from 2014 to 2015.[3] The project was introduced to the public and the media in June 2016.[4]

The train was developed by ten Filipino engineers and technicians from MIDRC led by head engineer Pablo Acuin.[5]


The Hybrid Electric Train is a hybrid electric vehicle partly run by electricity and partly run by diesel.[6] The train has 260 lead acid batteries which is used to run the train and operate the train's automatic doors, air-conditioning and CCTV systems.[2] It is convertible to be able to make use of lithium battery.[6] The train makes use of regenerative braking technology converting and storing kinetic energy as electricity that would otherwise be lost every time the train slows down and also hosts a diesel-powered generator.[2]

Each train set has five non-articulated train cars measuring 12 m (39 ft) long, 2.85 m (9.4 ft) wide, and 4.432 m (14.54 ft) high with one double-sliding doors on each side of each car[7], which can carry 220 passengers each at 50 kilometers per hour (31 mph).[8][9]Four of the train cars in the train will carry passengers while the frontmost car serves as a locomotive that contains the driver's cab and a generator. The train does not require catenary lines to operate due to it being powered with its own generator and batteries.[3]

The train also has an automatic stop safety features that would activate in an event of a strong earthquake.[5]

The MIDRC contracted local bus and truck manufacturer Fil-Asia Automotive and Industries Corp. to build the trains. Fil-Asia in turn outsourced the motor, chassis, engine, motor, axle, and wheels from outside of the Philippines to be able to manufacture the Hybrid Electric Train.[2]

Operational history

The first commercial operations of the Hybrid Electric Train began on May 6, 2019. It is currently being used in the Alabang-Calamba Line once a day with its horn and headlights changed and modified by PNR themselves.[10][11] The train was officially turned over to the Philippine National Railways on June 20, 2019.[12]


According to DOST Secretary Fortunato Dela Pena, the DOST will find private sectors that will manufacture the rolling stock of the HET before Rodrigo Duterte ends his term as President in 2022.[13]

See also


  1. "PH-Made HET is DOST's proof that some dreams do come true". Calamba, Laguna: Metals Industry Research and Development Center. Retrieved 24 April 2019.
  2. Cruz, Cherryl Ann (21 February 2019). "Meet the First Filipino-Built Train: The Hybrid Electric Train (HET)". Carmudi. Retrieved 24 April 2019.
  3. Rey, Aika (22 January 2019). "PNR to run first Philippine-made train". Rappler. Retrieved 24 April 2019.
  4. "DOST Usec. Guevarra join the Hybrid Electric Train Project Team in its crush load testing". Metals Industry Research and Development Center. Retrieved 24 April 2019.
  5. Pa-a, Saul (24 April 2019). "1st Filipino hybrid train runs from Calamba to Manila". Philippine News Agency. Retrieved 24 April 2019.
  6. Velasco, Ed (21 January 2019). "PH-made trains to roll soon". Manila Times. Retrieved 24 April 2019.
  7. Puerto, Jonathan; Acuin, Pablo; Tamayo, Rodnel (2018). "Design and Development of a Five-Coach Hybrid Electric Train". Philippine Metals. 5. Retrieved 24 April 2019.
  8. "DOST urges public to try the PH-made hybrid electric train". Philippine News Agency. 19 July 2018. Retrieved 24 April 2019.
  9. "Details of the Hybrid Electric Train (HET) and Automated Guideway Transit (AGT)". Freedom of Information Philippines. Metals Industry Research and Development Center. Retrieved 8 May 2019.
  10. "Pinoy-made hybrid electric train to start operations May 6". ABS-CBN News. 24 April 2019. Retrieved 24 April 2019.
  11. "DOST's Hybrid Electric Train Inauguration". techmagus. 29 April 2019. Retrieved 29 April 2019.
  12. User, Super. "DOST-MIRDC turns over the Hybrid Electric Train (HET) to the PNR". The Official Website of Metals Industry Reseach and Development Center. Retrieved 2019-06-26.
  13. Hybrid electric train, itinurn-over na sa PNR [Hybrid electric train, to be turned over to the PNR] (Television production) (in Filipino). People's Television Network. 20 June 2019.
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