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BYD B series

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BYD B series
A BYD B12A03 in Singapore, operated by SBS Transit
Overview
ManufacturerBYD Auto
Production2020–present
Assembly
DesignerWolfgang Egger
Body and chassis
ClassBattery electric bus
Body styleSingle-deck bus, double-deck bus and articulated bus
Doors2-3
Floor typeLow floor
Powertrain
EngineElectric wheel hub motor (TZ2912XSB/TZ290XSE) or single motor (TZ240XSA/TZ400XSA)
Electric motorPermanent-magnet synchronous motors
PropulsionIGBTVVVF
Battery301 kWh (B10)
355 kWh (B12)
Electric range355 km (B10)
315 km (B12)
Chronology
PredecessorBYD K series

The BYD B series are a line of battery electric buses produced by Chinese vehicle manufacturer BYD. It is the first bus model powered by BYD's Lithium Iron Phosphate Blade electric-batteries. It is available as a 10-metre single-deck (B10), a 11-metre double-deck bus (BD11), a 12-metre single-deck (B12), a 12-metre tri-axle double-deck (B12D), a 15-metre tri-axle single-deck (B15) and a 18-metre articulated bus (B18).[1][2][3]

History

[edit]

The BYD B series was launched on 29 July 2020, superseding the highly popular BYD K series. The bodywork was designed by Wolfgang Egger.[4] According to BYD, the new bus models feature LED water lamps, USB charging ports, newer-generation wheel hub motors which are 6% more energy-efficient, as well as a lightweight aluminum frame reducing the body weight by up to 10%.[1]

Operations

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BYD B10 operated by Western Bus in Shenzhen
A BYD B12D double-decker bus of Kowloon Motor Bus in Hong Kong
A BYD B12 bus arriving near Sudirman railway station, Jakarta

Mainland China

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  • Jinan: 340 BYD B10 buses were delivered in July 2022.[5]
  • Changzhou: The first B series buses entered service in 2021.[6]
  • Shenzhen:
    • Western Bus operated a fleet of 88 BYD B10s as of 2020.[7]
    • 10 BYD B12D double decker buses are used for tourist sightseeing services debut in October 2020.[8]
    • BYD BYD6871B2EV1 (B8) units was also first revenue service in 2021.
  • Zhongshan: 50 BYD B10s were delivered in 2022.
  • Yichang: A fleet of 10 BYD B18s entered service on the local BRT line.[9]
  • Many other Chinese cities have bought the B10 or B12, including Wuhan,[10] Guangzhou (as GAC BYD),[11] Guiyang[12] and Changzhou.

Asia Pacific

[edit]
  • Hong Kong:
    • 16 BYD B12A buses entered service with Kowloon Motor Bus in 2022. These electric buses were the first B series buses built to right hand drive specification.[13][14][15]
    • 41 BYD B12D buses were also delivered to KMB in 2023. These buses were first deployed on route 213M in July that year.[16][17]
  • Japan: 2 B10 units entered service with Keihin Kyuko Bus in 2024.[18]
  • Indonesia: 30 B12As were delivered to TransJakarta in 2022.[19][20]
  • Singapore:
    • In November 2022, ComfortDelGro took delivery of several BYD B12A03 buses with three doors, to be used on Internal Shuttle Bus services (ISB) within the National University of Singapore and Nanyang Technological University. These buses, along with Zhongtong N12 buses which entered service earlier, will gradually replace all diesel-powered buses on ISB routes.[21][22]
    • A BYD B12A03 single-decker, also featuring three doors, was showcased at the Singapore International Transport Congress & Exhibition 2022.[23][24][25] After the exhibition ended, the trial bus entered service with SBS Transit in January 2024 on routes 70, 162 and 265. The trial ended in February 2025 and the bus was returned to BYD Auto.[citation needed]
    • On 25 November 2023, the Land Transport Authority (LTA) announced that it had awarded a contract to BYD to deliver 240 BYD GTK6127BEVB (BC12A04) buses, with an option for 60 more exercised on 23 October 2024. They had entered revenue service on 2 December 2024,[26] initially deployed by SBS Transit on bus routes 86, 107/107M and 159. In October 2025, SMRT Buses also began to operate this model.
    • A new BYD GTK6127BEVS (BC12A05) (sold as B12DS) electric double-decker 3-door and 2-staircase bus made its debut in Singapore International Transport Congress & Exhibition (SITCE) 2024. This BYD GTK6127BEVS (BC12A05) was specially designed for the Singapore market, with bodywork by Zhuhai Guangtong Vehicle Manufacture. A demonstrator model is currently awaiting trial as of 2026.[citation needed]
    • In July 2025, a new batch of 14 BYD GTK6127BEVB (BC12A04) single-decker buses were delivered to Tower Transit Singapore for use on a 5-year operating contract on the island of Sentosa.[27]

Europe

[edit]
A BYD BD11 in London on London Buses route SL4
  • Finland: Nobina ordered 42 B15s for service in Turku.[28]
  • United Kingdom: BYD BD11s entered service for Transport for London (TfL) contractors in December 2024.[29] Additionally, B12 single-deck electric buses have also been made to TfL specification and are due to enter service.[30] The first BD11s for an operator outside London were delivered to Arriva North East for service in Northumberland in May 2026.[31]

South America

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Chile

[edit]

In May 2023, public-private company Metbus, which operates bus services for Red Metropolitana de Movilidad, the Chilean capital Santiago's public transport authority, imported and tested a single B18 articulated bus as part of a pilot program to test the model, with the goal of eventually renovating its entire articulated bus fleet with battery powered buses, during which it registered an overall energy consumption of 13% compared to their older models.[32] As of November of that year, the firm stated that it had very positive views on the bus' performance and was permitted to run it until March of 2024, having already pledged to renovate its entire 160-strong articulated bus fleet once financial conditions improve.[33] In October of that year, 10 B12 double-decker buses entered service on Route 520,[34] a temporary bus service that was originally meant to operate during the events of the 2023 Pan American and Parapan American Games, before Red Movilidad prolonged the service to 24 February due to the positive reception of the double-decker buses by its riders.[35][36] On 27 March 2024, Metbus their B12 double-decker buses on Route 555, which runs from Pajaritos metro station to Santiago's main airport, while the company studied other possible routes to run the buses in.[36]

On 30 September 2025, Metbus imported 10 new double-decker buses and permanently assigned them to Red Movilidad's Route 519, which was extended to run between Peñalolén and Pajaritos metro station, coinciding with Chile's hosting of the 2025 FIFA U-20 World Cup.[37] By December, Metbus had a total fleet of 950 electric buses, 30 of which are B12C01 double-deckers, and 94 are a fleet of brand new B18C01 articulated buses for use on Routes 406 and 506, both being the busiest bus routes in Santiago.[38]

Oceania

[edit]

Australia

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Sydney: Transport for NSW purchased BYD BC12A06 in 2026 with Volgren Optimus bodywork for Transit Systems NSW[39]

Awards

[edit]
B12 at Busworld Europe 2023

On 7 January 2022, it was announced that the BYD B10 had won the "2021 Transporter Word-of-Mouth New Energy Bus Award".[4]

References

[edit]
  1. ^ a b "B12". cv.byd.com. Archived from the original on 2022-12-10. Retrieved 2022-12-10. "全新一代轮边驱动桥,驱动效率提升6%,最大程度提高运营效益;" " 第四代铝合金车身,较上一代重量降低10%,同级别同电量车型整备质量最轻,最多可轻300-500kg。"
  2. ^ "B10". cv.byd.com. Archived from the original on 2022-12-12. Retrieved 2022-12-12.
  3. ^ "BYD's New Blade Battery Set to Redefine EV Safety Standards - BYD USA". BYD USA. Retrieved 2022-12-10.
  4. ^ a b laitimes (2022-01-27). "BYD B10 Bus won the "2021 Transporter Word-of-Mouth New Energy Bus Award"". laitimes. Retrieved 2022-12-22.
  5. ^ 电车汇 (2022-07-25). "400台比亚迪纯电动公交车在济南投运". finance.sina.com.cn (in Chinese). Retrieved 2022-12-10.
  6. ^ "Sina Visitor System". passport.weibo.com. Retrieved 2022-12-10.
  7. ^ "比亞迪B10爲何能夠成爲2020純電動公交車科技之王? - 人人焦點". ppfocus.com (in Chinese). Retrieved 2022-12-11. 2020年購入的88輛比亞迪B10純電動公交車,則成爲了深圳公交系統一道靚麗的風景線。
  8. ^ "10 units BYD Double-decker Tourist Buses B12D Debut at Shenzhen". m.chinabuses.org. Retrieved 2022-12-17.
  9. ^ "原创|技术引领,细节走心!首批比亚迪B18铰接车投运宜昌公交". www.sohu.com (in Chinese (China)). 2021-10-22. Retrieved 2026-05-22.
  10. ^ "武汉公交集团 比亚迪BYD6100B1EV1". Buspedia.top. Retrieved 2023-09-20.
  11. ^ "一汽巴士 广汽GZ6102B2EV". buspedia.top. Retrieved 2023-09-20.
  12. ^ "贵阳公交 比亚迪BYD6102B2EV2". buspedia.top. Retrieved 2023-09-20.
  13. ^ 黃文琪 (2021-05-27). "多圖|九巴訂購比亞迪B12純電動巴士即將付運". 香港01 (in Chinese (Hong Kong)). Retrieved 2022-12-17.
  14. ^ "KMB's new-generation electric single-decker to commence service Moving forward in upgrading the entire fleet to new energy buses". The Kowloon Motor Bus Co (1933) Ltd. 2022-04-25.
  15. ^ "Electric Bus | KMB's new domestic BYD single-deck electric bus arrives in Hong Kong, the world's first B12A right-handed version | Truck Bus Trailer - Directory & News - buslibrary - oemlibrary - trucklibrary". 24 July 2021. Archived from the original on 2022-12-12. Retrieved 2022-12-12.
  16. ^ "KMB received its first electric double-decker with 300 kilometres driving range, the highest in Hong Kong". The Kowloon Motor Bus Co (1933) Ltd. Retrieved 2022-12-17.
  17. ^ 鄧康翹 (2023-07-27). "九巴首部電動雙層巴士7.30投入服務 「電光綠」車身行走213M線". 香港01 (in Chinese (Hong Kong)). Retrieved 2023-09-20.
  18. ^ "(京急バス)3月上旬から大型電気バス2台運行開始". 京浜急行電鉄 (in Japanese). Retrieved 2024-02-18.
  19. ^ "Thirty Electric Buses Hit the Streets of Jakarta". Jakarta Globe. 2022-03-09. Retrieved 2022-12-10.
  20. ^ antaranews.com. "30 electric buses start rolling in Jakarta". Antara News. Retrieved 2022-12-17.
  21. ^ Ch'ng, Ryan (2022-11-06). "Three-Door Electric ISBs for NUS: BYD B12". The ISB Man. Retrieved 2022-12-10.
  22. ^ "Company Profile – BYD SINGAPORE". Retrieved 2022-12-10. 10 units of B12-A03 single-deck (3-door) bus was sold to Comfortdelgro Bus for NTU & NUS university shuttle bus operations.
  23. ^ "SITCE 2022". www.sitce.org. Retrieved 2022-12-10. In this SITCE showcase, BYD will be showcasing an exciting new range of electric vehicles ranging from a prime mover, commercial bus and a passenger car.
  24. ^ "BYD Unveils Singapore's First Blade Battery-powered Bus at SITCE". BYD. Retrieved 2022-12-17.
  25. ^ "BYD Blade-Battery Bus B12A03 Makes Debut at LTA-UITP SITCE_Buses News_chinabuses.org". m.chinabuses.org. Retrieved 2022-12-17.
  26. ^ Kok, Yufeng (2024-10-23). "Another 10 electric public buses to ply Singapore roads from December". The Straits Times. ISSN 0585-3923. Retrieved 2024-10-24.
  27. ^ "Tower Transit to run bus services, beach shuttle on Sentosa for 5 years". The Straits Times. 2025-05-30. Retrieved 2025-07-29.
  28. ^ BYD electrifies Finnish market for first time Coach & Bus Week 13 October 2020
  29. ^ "BYD BD11 electric buses set for London routes". Power Progress. 2024-06-04. Retrieved 2024-10-24.
  30. ^ Williams, Mark (18 November 2024). "BYD unveils new single-deck electric and production 'decker". Bus & Coach Buyer. Retrieved 18 January 2025.
  31. ^ "Arriva Blyth BYD BD11 electric fleet debuts ahead of service entry". routeone. Brighton: Diversified Business Communications UK. 12 June 2026. Retrieved 13 June 2026.
  32. ^ "Metbus prueba bus articulado eléctrico pensando en la renovación de su flota" [Metbus tests electric articulated bus, plans to renovate fleet]. Mobility Portal (in Spanish). 9 August 2023. Retrieved 20 June 2026.
  33. ^ "Esperando condiciones financieras favorables, Metbus sigue operando bus articulado eléctrico" [Awaiting favourable financial conditions, Metbus continues operating articulated electric bus]. Mobility Portal (in Spanish). 27 November 2023. Retrieved 20 June 2026.
  34. ^ "New electric double decker buses that will operate in the RED Movilidad system are unveiled". Government of Chile. Retrieved 2023-11-09.
  35. ^ Mondaca, Gabriela (15 March 2024). "¿Dónde están los buses de dos pisos?: la razón detrás de la desaparición de la novedad de los panamericanos" [Where are the double-decker buses?: the reason behind the disappearance of the novelty from the panamerican games]. La Tercera (in Spanish). Retrieved 20 June 2026.
  36. ^ a b Nieto, Benjamín (27 March 2024). "Buses eléctricos de dos pisos se suman al recorrido con destino al aeropuerto" [Double-decker electric buses will be added to the route that terminates at the airport]. EMOL (online edition of El Mercurio) (in Spanish). Retrieved 20 June 2026.
  37. ^ "RED Movilidad incorpora 10 nuevos buses eléctricos de dos pisos que permitirán llegar al Mundial Sub 20" [RED Movilidad incorporates 10 new electric double-decker buses which will allow to get to the U-20 World Cup] (Press release) (in Spanish). Red Metropolitana de Movilidad. 30 September 2025. Retrieved 20 June 2026.
  38. ^ "Metbus alcanza 950 buses eléctricos junto a BYD y un 94% de flota cero emisiones en Chile" [Metbus reaches 950 electric buses together with BYD and a 94% zero emission fleet in Chile]. Mobility Portal (in Spanish). 22 December 2025. Retrieved 20 June 2026.
  39. ^ https://volgren.com.au/driving-australias-next-generation-of-public-transport/