Battery electric bus

Last updated
Solaris Urbino 12 electric from Braunschweiger Verkehrs-GmbH (Germany) at an inductive charging station at the front of Braunschweig Hauptbahnhof BSVAG Solaris Urbino 12 electric "EMIL" Hauptbahnhof.jpg
Solaris Urbino 12 electric from Braunschweiger Verkehrs-GmbH (Germany) at an inductive charging station at the front of Braunschweig Hauptbahnhof

A battery electric bus is an electric bus that is driven by an electric motor and obtains energy from on-board batteries. Many trolleybuses use batteries as an auxiliary or emergency power source.

Contents

Battery electric buses offer the potential for zero-emissions, in addition to much quieter operation and better acceleration compared to traditional buses. They also eliminate infrastructure needed for a constant grid connection and allow routes to be modified without infrastructure changes, in contrast with a trolleybus. They typically recover braking energy to increase efficiency by a regenerative brake. With energy consumption of about 1.2 kW⋅h/km (4.3 MJ/km; 1.9 kW⋅h/mi), the cost of ownership is lower than diesel buses. [1] [2]

In 2018, the National Renewable Energy Laboratory (NREL) found that total operating costs per mile of an electric bus fleet in the United States in some cases may be less expensive than a diesel bus fleet.

History

Battery bus, 1899 Kuhlstein-Batteriebus.jpg
Battery bus, 1899

The London Electrobus Company started running the first ever service of battery electric buses between London's Victoria station and Liverpool Street on 15 July 1907. However, the weight and inefficiency of batteries meant that other propulsion technology - such as electric trolleybuses or diesel buses - became commonplace.

The first battery buses were mostly small, mini- or midi- buses. The improvement of battery technology from around 2010 led to the emergence of the mass-produced battery bus, including heavier units such as 12.2-meter (40 ft) standard buses and articulated buses. China was the first country to introduce modern battery electric buses in large scale. In 2009 Shanghai catenary bus lines began switching to battery buses. [3] In September 2010, Chinese automobile company BYD began manufacturing the BYD K9, one of the most popular electric buses

The first city to heavily invest in electric buses was Shenzhen, China. The city began rolling out electric buses made by BYD in 2011, with the objective of having a fully electric fleet. By 2017, Shenzhen's entire fleet of over 16,300 buses was replaced with electric buses, the largest fleet of electric buses of any city in the world. [4]

LionC all-electric school bus LionC all-electric school bus 07.tif
LionC all-electric school bus

According to Bloomberg , "China had about 99 percent of the 385,000 electric buses on the roads worldwide in 2017, accounting for 17 percent of the country’s entire fleet." Chinese cities are adding 1,900 electric buses per week. [5]

As of 2016 battery buses have less range, higher weight, higher procurement costs. The reduced infrastructure for overhead lines is offset by the costs of the infrastructure to recharge the batteries. In addition, the additional weight of batteries in a battery electric bus means that they have a lower passenger capacity than trolleybuses in jurisdictions where there is a legal limit on axle loads on roads. Battery buses are used almost exclusively in urban areas rather than for long-haul transportation. Urban transit features relatively short intervals between charging opportunities. Sufficient recharging can take place within 4 to 5 minutes (250 to 450 kW [340 to 600 hp]) usually by induction or catenary. [1]

Charging

Bus charging from an overhead charger Electric bus (2022).jpg
Bus charging from an overhead charger
An Arriva Shires & Essex Wright StreetLite EV bus whilst using induction to recharge its batteries at a bus stop. ArrivaTheShires-WrightStreetLiteEV-WolvertonAgora-P1340897.JPG
An Arriva Shires & Essex Wright StreetLite EV bus whilst using induction to recharge its batteries at a bus stop.

Commonly, metropolitan electric busses are charged on-route with 6-8 minutes of charging at 450 kW for every hour of operation. Opportunity charging is available at bus stops with overhead chargers utilizing the SAE J3105 standard and at terminals at the end of the bus route. Slower, 50kW to 175kW overnight charging at plug-in chargers is utilized too. [6] Sometimes wireless charging pads are utilized, but plug-in stations are more common due to the fact that are faster and more efficient. [7]

The bus's daily schedule takes into account the need to charge, keeping the overall schedule as close to optimal as possible. [8] Today, there are various software companies that help bus operators manage their electric bus charging schedule. These solutions ensure that buses continue to operate safely, without any unplanned stops and inconvenience to passengers. [8]

Supercapacitors can be charged rapidly, reducing the time needed to prepare to resume operation. [9]

The Society of Automotive Engineers has published Recommended Practice SAE J3105 to standardize physical automated connection interfaces for conductive charging systems since 2020. [10] For communication between charger and electric bus the same ISO 15118 protocol is used as for passenger car charging. The only differences are in the charging power, voltage and physical interface. [11] [12]

Pantographs and underbody collectors can be integrated in bus stops to quicken electric bus recharge, making it possible to use a smaller battery on the bus, which reduces the initial investment and subsequent costs. [13] [14] [15] [16] [17] [18]

Total operating cost per mile

NREL publishes zero-emission bus evaluation results from various commercial operators. NREL published following total operating cost per mile: with County Connection, for June 2017 through May 2018, for an 8-vehicle diesel bus fleet, the total operating cost per mile was $0.84; for a 4-vehicle electric bus fleet, $1.11; [19] with Long Beach Transit, for 2018, for a 10-vehicle electric bus fleet, $0.85; [20] and with Foothill Transit, for 2018, for a 12-vehicle electric bus fleet, $0.84. [21] [22]

Examples

Asia

VinBus's roof with battery and air conditioner NewOne - VinBus roof 01.jpg
VinBus's roof with battery and air conditioner

Europe

Double-decker battery electric bus in London 20200916 RATP London BCE47005 (cropped).jpg
Double-decker battery electric bus in London

North America

A New Flyer Xcelsior XE60 CHARGE articulated electric bus in New York City 4953 M86.jpg
A New Flyer Xcelsior XE60 CHARGE articulated electric bus in New York City

See also

Related Research Articles

<span class="mw-page-title-main">Trolleybus</span> Electric bus taking power from overhead wires

A trolleybus is an electric bus that draws power from dual overhead wires using spring-loaded trolley poles. Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole. They are also distinct from other kinds of electric buses, which usually rely on batteries. Power is most commonly supplied as 600-volt direct current, but there are exceptions.

<span class="mw-page-title-main">Electric vehicle</span> Vehicle propelled by one or more electric motors

An electric vehicle (EV) is a vehicle whose propulsion is powered fully or mostly by electricity. EVs include road and rail vehicles, electric boats and underwater vessels, electric aircraft and electric spacecraft.

<span class="mw-page-title-main">Plug-in hybrid</span> Hybrid vehicle whose battery may be externally charged

A plug-in hybrid electric vehicle (PHEV) or simply plug-in hybrid is a type of hybrid electric vehicle equipped with a rechargeable battery pack that can be directly replenished via a charging cable plugged into an external electric power source, in addition to charging internally by its on-board internal combustion engine-powered generator. While PHEVs are predominantly passenger cars, there are also plug-in hybrid variants of sports cars, commercial vehicles, vans, utility trucks, buses, trains, motorcycles, mopeds, military vehicles and boats.

<span class="mw-page-title-main">Toronto Transit Commission bus system</span> Bus system serving the Greater Toronto Area in Ontario, Canada

The Toronto Transit Commission (TTC) uses buses and other vehicles for public transportation. In 2018, the TTC bus system had 159 bus routes carrying over 264 million riders over 6,686 kilometres (4,154 mi) of routes with buses travelling 143 million kilometres in the year. As of 2021, the TTC has 192 bus routes in operation, including 28 night bus routes. In 2023, the system had a ridership of 362,041,400, or about 1,179,700 per weekday as of the third quarter of 2024.

<span class="mw-page-title-main">Electric bus</span> Bus powered by electricity

An electric bus is a bus that is propelled using electric motors, as opposed to a conventional internal combustion engine. Electric buses can store the needed electrical energy on board, or be fed mains electricity continuously from an external source such as overhead lines. The majority of buses using on-board energy storage are battery electric buses, where the electric motor obtains energy from an onboard battery pack, although examples of other storage modes do exist, such as the gyrobus that uses flywheel energy storage. When electricity is not stored on board, it is supplied by contact with outside power supplies, for example, via a current collector, or with a ground-level power supply, or through inductive charging.

<span class="mw-page-title-main">Electric truck</span> Battery propelled freight motor vehicle

An electric truck is a battery electric vehicle (BEV) designed to transport cargo, carry specialized payloads, or perform other utilitarian work.

<span class="mw-page-title-main">Los Angeles Metro bus fleet</span> Transit bus fleet operated and contracted by LACMTA

The Los Angeles County Metropolitan Transportation Authority operates a vast fleet of buses for its Metro Bus and Metro Busway services. As of September 2019, Metro has the third largest bus fleet in North America with 2,320 buses.

Environmental Performance Vehicles (EPV), previously DesignLine Corporation, is a manufacturer of coach, electric and range-extended electric (hybrid) buses. It was founded in Ashburton, New Zealand in 1985. Initially it was a manufacturer of tour coaches. In the 1990s it diversified into conventional transit buses and then added hybrid city buses in the late 1990s. It was acquired by American interests in 2006, and DesignLine Corporation's headquarters was relocated to Charlotte, North Carolina. Following a bankruptcy in 2013, the assets of DesignLine were sold and the company was renamed.

<span class="mw-page-title-main">San Francisco Municipal Railway fleet</span> LRV and Bus Fleet of the San Francisco Municipal Railway (Muni)

With five different modes of transport, the San Francisco Municipal Railway runs one of the most diverse fleets of vehicles in the United States. Roughly 550 diesel-electric hybrid buses, 300 electric trolleybuses, 250 modern light rail vehicles, 50 historic streetcars and 40 cable cars see active duty.

<span class="mw-page-title-main">Battery electric vehicle</span> Type of electric vehicle

A battery electric vehicle (BEV), pure electric vehicle, only-electric vehicle, fully electric vehicle or all-electric vehicle is a type of electric vehicle (EV) that uses energy exclusively from an on-board battery. This definition excludes hybrid electric vehicles. BEVs use electric motors and motor controllers instead of internal combustion engines (ICEs) for propulsion. They derive all power from battery packs and thus have no internal combustion engine, fuel cell, or fuel tank. BEVs include – but are not limited to – motorcycles, bicycles, scooters, skateboards, railcars, watercraft, forklifts, buses, trucks, and cars.

<span class="mw-page-title-main">Capacitor electric vehicle</span> Type of transportation vehicle

A capacitor electric vehicle is a vehicle that uses supercapacitors to store electricity.

<span class="mw-page-title-main">Proterra (bus manufacturer)</span> American electric bus manufacturer

Proterra Inc. was an American electric vehicle and powertrain manufacturer based in Burlingame, California. The company designed and manufactured battery electric transit buses, powertrain systems for other heavy-duty vehicle builders and charging systems for fleets of heavy-duty vehicles.

<span class="mw-page-title-main">Trolleybuses in Seattle</span> Electric transit system serving Seattle, Washington

The Seattle trolleybus system forms part of the public transportation network in the city of Seattle, Washington, operated by King County Metro. Originally opened on April 28, 1940, the network consists of 15 routes, with 174 trolleybuses operating on 68 miles (109 km) of two-way parallel overhead lines. As of the third quarter of 2024, the system carries riders on an average of 39,500 trips per weekday, comprising about 18 percent of King County Metro's total daily ridership.

<span class="mw-page-title-main">BYD K series</span> Motor vehicle

The BYD K series bus are a line of battery electric buses manufactured by the Chinese automaker BYD, powered with its self-developed lithium iron phosphate battery, featuring a typical operating range of 250 kilometres (160 mi) per charge under urban road conditions. It is available in several different nominal lengths, from 7.0 to 13.7 m and also as a 18 m (60 ft) (articulated) bus. The rear axle is powered by two electric traction motors; the battery capacity and motor power of each model varies depending on the nominal length and passenger capacity.

<span class="mw-page-title-main">New Flyer Xcelsior</span> Line of transit buses built by New Flyer

The New Flyer Xcelsior is a line of transit buses available in 35-foot rigid, 40-foot rigid, and 60-foot articulated nominal lengths manufactured by New Flyer Industries since 2008. In addition to the different available lengths, the buses are sold with a variety of propulsion systems: conventional diesel, compressed natural gas (CNG), diesel-electric hybrid, hydrogen fuel cell, overhead electric wire and battery electric. A future autonomous bus variant was announced in January 2021.

As of 2019, King County Metro operates the seventh largest fleet of buses in the United States, with a total of 1,583 buses. The agency's buses traveled a total of 53 million miles (85,000,000 km) and transported over 123 million passengers in 2019.

<span class="mw-page-title-main">Link Transit</span> Bus operator in Chelan and Douglas counties, Washington, U.S.

Link Transit is the public transit authority of Chelan and Douglas counties in the U.S. state of Washington. It operates fixed bus and paratransit services between 17 communities in the Wenatchee–East Wenatchee metropolitan area, including the cities of Chelan, Leavenworth, Waterville and Wenatchee. In 2014, Link Transit carried 987,376 passengers on its 18 bus routes.

<span class="mw-page-title-main">Proterra EcoRide</span> American battery electric transit bus

The Proterra EcoRide BE35 is a 35 foot (11 m) fast-charge battery electric bus that seats 38 with a total passenger capacity of 60 in its composite low floor body. Foothill Transit was the first transit agency to operate the buses in revenue service, starting in September 2010. It is the first 30 ft (9 m) or larger, heavy-duty all-electric bus ever to complete federally required durability, reliability and safety testing at the Bus Research and Testing Center in Altoona, Pennsylvania. The 12yr/500,000 miles (800,000 km) STURAA test was completed on March 5, 2012.

<span class="mw-page-title-main">ENC Axess</span> Motor vehicle

The ENC Axess is a line of low-floor transit buses available in 35-foot and 40-foot nominal lengths manufactured by ENC in Riverside, California starting from 2003. In addition to the different available lengths, the buses are sold with a variety of prime movers, ranging from conventional diesel, LNG/CNG combustion engines, diesel-electric hybrid and hydrogen fuel cell with a traction motor.

References

  1. 1 2 Fraunhofer-Institut für Verkehrs- und Infrastruktursysteme Praxistest mit einem Fahrzeug zwischen 03.11.2014 bis zum 30.01.2015
  2. BYD erhält Rekordbestellung über 2000 eBusse und 1000 Elektroautos Archived 2016-01-06 at the Wayback Machine V. 12. May 2014. Retrieved, 15 July 2015.
  3. Shanghai: Investitionen im Netz bleiben aus, Meldung auf www.trolleymotion.ch vom 12. November 2012
  4. 1 2 Ximin, Han. "All Shenzhen public buses now electric 全球规模最大!深圳专营公交车辆实现纯电动化". Weixin Official Accounts Platform. Retrieved 2022-10-26.
  5. "Electric Buses Are Hurting the Oil Industry". Bloomberg News . 2018-04-23. Retrieved 2020-09-08.
  6. "Charging Infrastructure for Battery-Electric Buses", NEMA Communications, May 26, 2020
  7. Kennedy, Sarah (5 December 2019). "Electric buses charge up quickly using new wireless systems". Yale Climate Connections. Retrieved 8 December 2019.
  8. 1 2 Watt, Adrienne (2014-08-14). "2. Project Management Overview".{{cite journal}}: Cite journal requires |journal= (help)
  9. MIT-Technology Review: Next Stop: Ultracapacitor Buses Archived 2013-03-26 at the Wayback Machine , aufgerufen 18. November 2013
  10. "Electric Vehicle Power Transfer System Using Conductive Automated Connection Devices". SAE International. January 20, 2020. Retrieved 8 June 2022.
  11. Köhler, Sebastian; Baker, Richard; Strohmeier, Martin; Martinovic, Ivan (February 2022). "Brokenwire: Wireless Disruption of CCS Electric Vehicle Charging". arXiv: 2202.02104 [cs.CR].
  12. US20180001776A1,KIM, Ji Hown; Yang, Chang Min& Lee, So Jin,"In-cable control box mounted on electric vehicle charging cable and method for charging electric vehicle using the same",issued 2018-01-04
  13. Large-capacity, flash-charging, battery-powered pilot bus takes to the street.
  14. "Current collectors for electric busses". www.schunk-sbi.com. Schunk Carbon Technology. Archived from the original on 2017-01-21. Retrieved 2019-09-18.
  15. Golson, Jordan. "A Giant Charger That Juices Up Electric Buses in Three Minutes". Wired.
  16. Ultrafast Electric Bus Charging Archived 2017-08-09 at the Wayback Machine , Opbrid
  17. Trolley:Motion, 27. Mai 2013: Shanghai - Weitere Reduzierung des Trolleybusnetzes - ungewisse Zukunft Archived December 3, 2013, at the Wayback Machine , aufgerufen 8. Oktober 2013
  18. Verbrugge, Boud; Hasan, Mohammed Mahedi; Rasool, Haaris; Geury, Thomas; El Baghdadi, Mohamed; Hegazy, Omar (2021). "Smart Integration of Electric Buses in Cities: A Technological Review". Sustainability . 13 (21): 12189. doi: 10.3390/su132112189 .
  19. Eudy, Leslie; Jeffers, Matthew (2018), Zero-Emission Bus Evaluation Results: County Connection Battery Electric Buses (PDF), National Renewable Energy Laboratory, NREL/TP-5400-72864
  20. Eudy, Leslie; Jeffers, Matthew (2020), Zero-Emission Bus Evaluation Results: Long Beach Transit Battery Electric Buses, Federal Transit Administration, doi:10.21949/1518335
  21. Eudy, Leslie; Jeffers, Matthew (2018), Foothill Transit Agency Battery Electric Bus Progress Report: Data Period Focus: Jan. 2018 through Jun. 2018 (PDF), National Renewable Energy Laboratory, NREL/TP-5400-72207
  22. Eudy, Leslie; Jeffers, Matthew (2018), Foothill Transit Agency Battery Electric Bus Progress Report: Data Period Focus: Jul. 2018 through Dec. 2018 (PDF), National Renewable Energy Laboratory, NREL/TP-5400-72209
  23. BYD Archived 2014-11-29 at the Wayback Machine Internetauftritt des Herstellers. Retrieved, 23 November 2014.
  24. Bild.de, 8. August 2013: Südkorea setzt Straßen unter Strom, aufgerufen 21. Oktober 2013
  25. BYD anticipated sales of 6,000 electric buses worldwide in 2015 vom 6. Januar 2016. Retrieved, 6 January 2016.
  26. China’s BYD is World’s Largest EV Manufacturer vom 28. Dezember 2015. Retrieved, 6 January 2016.
  27. "SHETAB electrical bus, the first vehicle designed with PLM technology in Iran". www.linkedin.com. Retrieved 2021-04-27.
  28. "اتوبوس برقی شتاب، اولین خودروی طراحی شده با فناوری PLM در ایران". روزنامه دنیای اقتصاد (in Persian). Retrieved 2021-04-27.
  29. muenchen.de. "SWM und MVG testen neuen Elektrobus".
  30. Der SOR-Elektrobus auf www.inmod.de Archived February 28, 2015, at the Wayback Machine
  31. Elektrobusse ab 2013 in der City. auf wien.orf.at, retrieved, 10 September 2012.
  32. DOSSIER DE PRESSE AVRIL 2013, TOSA Archived 2015-08-29 at the Wayback Machine (PDF; 543 kB)
  33. "London's first pure electric 'emission free' buses hit the streets". Transport for London. 18 December 2013. Retrieved 2022-10-26.
  34. GmbH, Regionalverkehr Ruhr-Lippe. "Seite nicht gefunden". Archived from the original on 2016-03-14.
  35. 1 2 , 30. Juni 2013: Elektromobilität für Bonn: Positive Testergebnisse mit chinesischem Elektrobus, aufgerufen 16. Juli 2013
  36. Braunschweiger Verkehrs AG: Elektrobusse mit induktiver Ladetechnik – der Schritt in ein neues Zeitalter Archived August 20, 2014, at the Wayback Machine , aufgerufen 8. Oktober 2013
  37. YouTube: EmiL - Elektromobilität mittels induktiver Ladung, Videoanimation, aufgerufen 8. Oktober 2013
  38. eurailpress.de, 11. September 2013: Bombardier: Primove-Station in Braunschweig in Betrieb, aufgerufen 8. Oktober 2013
  39. Fraunhofer-Elektrobus wird auf Linie 61 getestet
  40. "OmnibusRevue - Erste E-Buslinie Sachsens nimmt Betrieb auf". Archived from the original on 2019-09-03. Retrieved 2015-07-10.
  41. Stadtwerke kaufen sechs Elektrobusse, 7. Juli 2015
  42. Neuer batteriebetriebener E-Bus fährt in Pinneberg Archived 2015-07-05 at the Wayback Machine , 12. Mai 2014
  43. Die BVG präsentiert ihre neuen Elektrobusse, 1. Juli 2015
  44. Video: Elektrische Buslinie in Berlin startet in die Testphase, 8. Juli 2015
  45. Umweltfreundlich, leise, aber noch nicht ausgereift, 7. Juli 2015
  46. Elektromobilität in Rumänien: Gemeinde plant 100% elektrischen ÖPNV, 23. Juni 2015
  47. "Elektrifizierung[Electrification]" (in German). vbsh. Retrieved 2024-10-19.
  48. "Bus fleet audit—31 March 2023" (PDF). Transport for London. 31 March 2023. Retrieved 15 June 2023.
  49. "World's First Zero Emission Electric Double Decker | Metroline News". Metroline. Archived from the original on 2018-07-25. Retrieved 2021-08-07.
  50. "ГУП «Мосгортранс»: 1700 электробусов в Москве" [1,700 electric buses in Moscow]. mosgortrans.ru. 16 June 2024. Retrieved 2024-06-17.
  51. "Bus fleet audit—31 March 2023" (PDF). Transport for London. 31 March 2023. Retrieved 15 June 2023.
  52. EarthTechling, 4. November 2013: Electric School Bus Idea Set To Debut In California, aufgerufen 16. November 2013
  53. Münder, Peter (28 October 2014). "Elektromobilität: Die Bergziege summt jetzt". Die Zeit.
  54. "Aktuell – SAT.1 REGIONAL". Archived from the original on 2015-09-24. Retrieved 2015-07-10.
  55. it-times.de, 12. Februar 2016: BYD: Großauftrag für Elektrobusse aus Kalifornien, aufgerufen 8. März 2016
  56. oekonews.at, 17. Februar 2016: Kalifornien: Die erste 100% elektrische Busflotte rollt demnächst, aufgerufen 8. März 2016
  57. "Capital Metro Board Approves Nation's Largest Electric Vehicle Procurement" (Press release). CapMetro. September 27, 2021. Retrieved 8 June 2022.