Proterra, Inc.

Proterra, Inc.
Private
Industry Automotive
Founded 2004 (2004) in Golden, Colorado
Headquarters 1815 Rollins Road
Burlingame, California
Area served
 North America
Key people
 Ryan Popple (CEO)
Number of employees
 51-200[1]
Website www.proterra.com

Proterra, Inc. is an American automotive and energy storage company based in Burlingame, California. The company designs and manufactures electric transit buses and electric charging systems. Proterra's Catalyst series includes transit buses ranging from 35 feet (11 m) to 40 feet (12 m) in length and various battery configurations. Buses are charged through an overhead charging station that is placed at maintenance facilities as well as route terminals.

History

Proterra, Inc. was founded in Golden, CO by Dale Hill in 2004. Hill had previously founded Trans Tech, a Denver, CO-based bus manufacturing company that built CNG hybrid buses throughout the 1990s, as well as Alumatech, a manufacturing company that made aluminum dump trailers.

Following the Federal Transit Administration (FTA)'s push for alternative fuels and forms of mobility through such programs as the Clean Fuels Grant Program Bus and Bus Facilities,[2] and the TIGER and TIGGER programs, Hill wanted go beyond the success of his CNG buses that launched the world’s first fleet of alternative fuel buses at the 16th Street Mall in Denver, Colorado. He wanted to create a company that would take the lead in creating zero-emission, U.S.-based transit buses.

This was particularly important since many of the programs, including the Clean Fuels Grant Program[3] and the TIGGER[4] program, either exclude CNG buses and facilities, explicitly require capital investments that assist in reducing the energy consumption of a transit agency, and/or reduce greenhouse gas emissions of a transit agency.

In February 2010, Proterra announced that it would move its manufacturing plant from Golden, Colorado to Greenville, South Carolina due to its close proximity to Clemson University International Center for Automotive Research (CU-ICAR).[5] In October 2011, the company announced it would consolidate all operations in Greenville, moving management and research teams from Colorado.[6]

Ryan Popple, formerly of Tesla Motors, was appointed CEO in 2014.[7]

In 2015, Proterra was awarded a $3 million grant from the California Energy Commission to fund the design, development and construction of the company’s battery-electric transit bus manufacturing line in the City of Industry, California.

Proterra moved its headquarters from Greenville, South Carolina to Burlingame, California in October 2015.[8]

As of January 2017, the company has sold more than 375 buses to municipal, corporate and university transit agencies in 20 states.

In September 2018, Daimler invested $155 million in Electric Bus Maker Proterra.[9][10]

Products

EcoRide BE35

BE35 bus

Proterra's EcoRide BE35 is a 35 ft (11 m) composite body, fast-charge, battery electric bus that seats 38 (including the driver) and has a passenger capacity of 60. Foothill Transit was the first user of the buses, which rolled out in September 2010[11][12] and the first series-produced bus was completed in December 2010.[13] 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 at Altoona, Pennsylvania. The 12yr/500,000 mi (800,000 km) STURAA test was completed on March 5, 2012.[14]

Results from the STURAA test showed an average, combined fuel economy of 1.81 kWh/mi (1.12 kW⋅h/km) or 20.84 miles per US gallon (8.86 km/l) diesel equivalent.[15] Compared to the buses it replaces—conventional diesel buses average 3.86 miles per US gallon (1.64 km/l); CNG buses return 3.27 miles per US gallon (1.39 km/l) diesel equivalent; and diesel-hybrid buses average about 4.6 miles per US gallon (2.0 km/l)[16]—the results are up to 600% better.

Foothill Transit has been working with the California Air Resources Board and the United States Department of Energy National Renewable Energy Laboratory (NREL) to study the real-world performance of its Proterra buses.[17][18][19] Observed economy for twelve BE35 buses in the Foothill Transit fleet was 17.24 miles per US gallon (0.1364 l/km) diesel equivalent, compared to an observed 4.15 miles per US gallon (0.567 l/km) diesel equivalent for a fleet of eight NABI 42-foot CNG-fueled buses. However, the BE35 fleet operates on circulator routes at slower speeds compared to the NABI CNG fleet, which were dispatched as needed to any Foothill Transit route. The BE35 fleet achieved an availability of 80.6%, less than the desired 85% availability due to constraints on parts availability and low-voltage battery (i.e., not the propulsion batteries) reliability; the NABI CNG fleet achieved an availability of 96.8%. Total maintenance costs for the BE35 fleet ($0.41/mi) is also higher than the maintenance cost for the NABI CNG fleet ($0.27/mi).[19]

Battery technology and recharging

Docked in the overhead charger terminal (Feb 2016)
Curbside charging station (Nov 2015)
Charging infrastructure for Proterra Catalyst under evaluation with King County Metro Transit at Eastgate Park & Ride

The vehicle's 220-kW electric motor is powered by a Lithium–titanate battery supplied by Altairnano that can be recharged in 5–10 minutes while stopped at a bus stop via overhead terminals connected to a charging station, without driver involvement.[20] Charging, which would normally take place during a brief layover, typically provides sufficient charge for a further 26 miles (42 km) of operation.[21][22] As of June 2016, Proterra will grant royalty-free access to the patents covering their overhead charging system.[23]

Catalyst

Proterra introduced the Catalyst, a new, fast-charge, 100% electric bus in 2014 to replace the EcoRide BE35. The all-new bus built on the EcoRide’s design and engineering and delivered a longer, lighter and more fuel-efficient bus.

The second-generation bus measures 40 ft (12 m) and weighs approximately 27,000 lb (12,000 kg), which is less than any other 40 ft (12 m) transit bus on the market today.[24] The bus is built from lightweight, durable carbon composite. The overall lower weight helps reduce wear and tear on streets. It has no tailpipe and runs virtually silent.

Proterra Catalyst

With the on-route fast charging system, the Catalyst can be operated continuously, 24/7, without the need to head to the depot for lengthy charge times. Catalyst buses equipped with the FC battery pack can charge at a rate of up to 500 kW.[25] The company added a 35 ft (11 m) model of the Catalyst to its product line October 2015.

It is one of the world’s most efficient transit buses; it thus leaves a very small carbon footprint. Like other all-electric vehicles, there are zero tailpipe emissions. Collectively, Proterra buses have been estimated to have reduced greenhouse gas emissions by more than 5,000,000 lb (2,300,000 kg) CO2 equivalent when compared to conventional diesel and CNG buses—assuming average US mix for energy generation.[26] Although the initial purchase cost of the vehicle is higher than conventional and hybrid buses, Proterra assert the total cost of ownership over a twelve-year lifecycle is lower thanks to reduced maintenance and energy/fuel costs.[25]

Catalyst is a modular system, offered with two different lengths, two different drivetrains, and seven different batteries, depending on the required passenger capacity, speed (hill performance),[32] and range, respectively.[27] The buses were initially offered with lithium-titanate batteries, which Proterra redesignated the TerraVolt FC. The TerraVolt XR lithium nickel manganese cobalt oxide batteries[25] were introduced in 2015 with improved range but slower charging,[29] and the TerraVolt E2 batteries were introduced in 2016 with the longest range and slowest charging.[30] Buses equipped with the FC (Fast Charge) family of batteries are intended for circulator routes; XR (eXtended Range) battery buses are intended for intermediate-mileage routes; and E2 (Efficient Energy) battery buses are intended for high-mileage routes.[30] Batteries are carried under the Catalyst chassis, and use an interchangeable mounting system, so each Catalyst can hold between four to ten battery packs. The batteries can be swapped out, upgraded, or reconfigured as needs change.[25]

NREL also studied two Catalyst 40FC buses in the Foothill Transit fleet operating in 2017. The two Catalyst 40FC were slightly less efficient at 16.99 miles per US gallon (0.1384 l/km) diesel equivalent compared to the BE35s and suffered from the same low-voltage battery issues, resulting in an availability of 81.3% and a maintenance cost of $0.32/mi.[19]

Others

In July 2018, Foothill Transit announced they had ordered two Alexander Dennis Enviro500EV double-decker buses with powertrains built by Proterra.[33] The Enviro500EV will use Proterra Catalyst E2 battery packs, on-board charging hardware, and thermal management.[34]

Development and manufacturing

Proterra Catalyst

Proterra is a national company with its headquarters in Silicon Valley and manufacturing in San Gabriel Valley within metro Los Angeles and in South Carolina’s Upstate Region—utilizing strengths and competitive advantages of all locations. The Proterra headquarters is centrally-located in California, home to America’s largest concentration of electric vehicle and transportation technology development in North America and the number one market for transit in the U.S. The company also operates a West Coast manufacturing facility in the City of Industry, California. Proterra’s East Coast manufacturing and engineering operations are located in Greenville, South Carolina and sits directly outside CU-ICAR. CU-ICAR’s 250-acre campus—its research is focused entirely on industry needs and economic development—gives Proterra access to research and development resources that help further development of its EV buses and charging stations.

Current and future operations

A Proterra Catalyst operated by King County Metro.

As of 2017, Proterra stated it had sold more than 400 vehicles to more than 45 customers in 20 states.[35] Current operations and future purchases include:

Year[lower-alpha 1] City/Location State Agency Vehicles[lower-alpha 2] Refs
2010 PomonaCA Foothill Transit 31 [36][37]
2012 TallahasseeFL StarMetro[lower-alpha 3] 5 [37][40][41][42]
2013 San AntonioTX VIA Metropolitan Transit 3 [43]
2013 StocktonCA San Joaquin Regional Transit District 11 [44][45]
2013 WorcesterMA Worcester Regional Transit Authority 7 [37][46][47]
2014 ChicagoIL Chicago Transit Authority 22 [48]
2014 Reno[lower-alpha 4]NV Regional Transportation Commission of Washoe County 8 [50]
2015 King CountyWA King County Metro Transit[lower-alpha 5] 23[lower-alpha 6] [53][54]
2015 LouisvilleKY Transit Authority of River City 16 [55]
2015 NashvilleTN Nashville Metropolitan Transit Authority 9 [56][57][58]
2015 SenecaSC Clemson Area Transit[lower-alpha 7] 7 [59]
2016 ChicagoIL JLL[lower-alpha 8] 10 [60]
2016 MissoulaMT ASUM Transportation 2 [61]
2016 Pioneer ValleyMA Pioneer Valley Transit Authority 3 [62][63]
2016 PortervilleCA Porterville Transit 2 [64]
2017 AtlantaGA Metropolitan Atlanta Rapid Transit Authority[lower-alpha 9] 1 [65]
2017 EverettWA Everett Transit[lower-alpha 10] 4 [67][68]
2017 FresnoCA California State University, Fresno 3 [69]
2017 FresnoCA Fresno County Rural Transit 4 [69]
2017 LexingtonKY Lexington Transit Authority[lower-alpha 10] 6 [67]
2017 ModestoCA Modesto Area Express 4 [70]
2017 Park CityUT Park City Public Works[lower-alpha 10] 6 [67][71][72]
2018 Pierce CountyWA Pierce Transit[lower-alpha 10] 6 [67][68]
2017 Port ArthurTX Port Arthur Transit[lower-alpha 10] 6 [67][73]
2017 ShreveportLA Shreveport Area Transit System[lower-alpha 10] 5 [67][74]
2017 VisaliaCA City Of Visalia Transit Division 4 [69]
2017 WilmingtonDE Delaware Transit Corporation[lower-alpha 10] 6 [67][75]
2018 AnchorageAK PeopleMover[lower-alpha 11] 1 [76]
2018 BaltimoreMD Baltimore Gas and Electric 2 [77][78]
2018 BremertonWA Kitsap Transit 1 [79]
2018 DallasTX Dallas Area Rapid Transit[lower-alpha 12] 7 [80][81][82]
2018 DuluthMN Duluth Transit Authority 7 [83][84]
2018 GreensboroNC Greensboro Transit Authority[lower-alpha 13] 4 [85]
2018 MolineIL Quad Cities MetroLINK 2 [86]
2018 New York CityNY Metropolitan Transportation Authority[lower-alpha 14] 5 [87]
2018 San JoséCA Mineta San José International Airport 10 [88]
2018 Santa Clara CountyCA Santa Clara Valley Transportation Authority[lower-alpha 10] 5 [67][89]
2018 Washington, DC DC Circulator 14 [90]
2018 YosemiteCA United States National Park Service 2 [91]
2019 San Mateo CountyCA San Mateo County Transit District 10 [92]
2019 Los AngelesCA Los Angeles Department of Transportation[lower-alpha 3] 25 [93]
2019 TorontoON Toronto Transit Commission[lower-alpha 15] 10 [94]
2020 EdmontonAB Edmonton Transit Service 25 [95]
  TOTAL 344
Notes
  1. ↑ Year of initial deployment
  2. ↑ Deliveries, leased, and firm orders
  3. 1 2 Selected under the 2017 FTA Low or No Emission Program — 5339(c) enacted by the FAST Act.[38] 55% of the funds granted in 2017 went to 29 agencies that intend to purchase or lease Proterra electric buses.[39]
  4. ↑ Proterra has also partnered with University of Nevada, Reno to deploy a single autonomous bus in Reno based on the Catalyst.[49]
  5. ↑ Demonstrations began in 2015,[51] with regular service in 2016.[52]
  6. ↑ Of the 23, 3 are in service and 20 are on firm order from an option held for 73 additional buses.[52]
  7. ↑ World's first all-electric municipal bus fleet.
  8. ↑ Leased by JLL.
  9. ↑ On loan as a pilot program.
  10. 1 2 3 4 5 6 7 8 Selected under the 2016 FTA Low or No Emission Program — 5339(c) enacted by the FAST Act.[66]
  11. ↑ Under a four month sponsored trial. Sponsored by the local waste management company Anchorage Solid Waste Services.
  12. ↑ First customer for the 35-foot Catalyst.
  13. ↑ GTA holds a five-year contract with Proterra and expects to purchase more than 4 buses.[85]
  14. ↑ 3-year pilot program testing 10 all-electric buses: 5 from Proterra and 5 from New Flyer.
  15. ↑ TTC is purchasing 30 electric buses (10 each from the leading manufacturers) as part of an evaluation program.

Investors

Since inception, Proterra has been funded through FTA grants as well as venture capital funding. Since 2011 Proterra has raised more than $130 million in private equity funding. Investors include:

  • Kleiner Perkins Caufield & Byers, a venture capital private equity firm based in Silicon Valley.[7]
  • General Motors Ventures LLC.[7]
  • Mitsui & Co. Global Investment Inc.,a subsidiary of Mitsui & Co., Ltd.
  • Vision Ridge Partners LLC, a Boston-based organization that advises and invests in transformative growth companies with a focus on sustainability.[96]
  • 88 Green Ventures LLC, an investment firm that manages asset capabilities to assist emerging green companies.[96]
  • TAO Capital Partners, invests in technology, alternative energy, healthcare, consumer, and real estate businesses that have a sustainable positive impact.[7]
  • BMW i Ventures [97]

See also

References

  1. ↑ "Proterra, Inc". LinkedIn. Retrieved February 15, 2015.
  2. ↑ "Clean Fuels Grant Program Bus and Bus Facilities (5309, 5318)". Federal Transit Administration. Archived from the original on 15 January 2012. Retrieved 12 July 2018.
  3. ↑ "Clean Fuels Grant Program (5308)". US: Federal Transit Administration. Retrieved April 18, 2016.
  4. ↑ Eudy, Leslie (2012). FTA’s TIGGER Program Supporting Sustainable Transit Operations (PDF). Sustainability and Public Transportation Workshop. Colorado, US. Retrieved April 18, 2016.
  5. ↑ Gouch, John. "Proterra selects CU-ICAR for research, development and assembly of hybrid commercial vehicles". Newsstand - Clemson University News and Stories, South Carolina. Retrieved 28 August 2018.
  6. ↑ "Proterra Moves Headquarters to South Carolina Facility". Mass Transit. Retrieved 28 August 2018.
  7. 1 2 3 4 Vance, Ashlee (June 20, 2014). "Proterra, an Electric Bus Maker, Aims to Follow the Tesla Model". Bloomberg. US. Retrieved April 18, 2016.
  8. ↑ "Proterra Joins the San Francisco Bay Area's Highly Touted Transportation and Tech Hubs". US: Proterra. October 5, 2015. Retrieved April 18, 2016.
  9. ↑ Ohnsman, Alan. "Next Stop Unicorn? Daimler Leads $155 Million Round For Silicon Valley Electric Bus Maker Proterra". Forbes. Retrieved 2018-09-20.
  10. ↑ "Electric bus maker Proterra secures $155 million investment led by Daimler". Electrek. 2018-09-19. Retrieved 2018-09-20.
  11. ↑ "L.A. Gets World's First Rapid-Charge Electric Bus". TechChunks. US. September 20, 2010. Retrieved April 18, 2016.
  12. ↑ Barry, Keith (13 September 2010). "Quick-charge electric bus rolls into L.A. County". Wired. Retrieved 12 July 2018.
  13. ↑ "Proterra Completes First All-Electric Transit Bus Manufactured in Greenville, S.C., Implementing Scale Production Capabilities" (Press release). Cision PR Newswire. 16 December 2010. Retrieved 12 July 2018.
  14. ↑ "BE-35". US: Altoona Bus Research and Testing Center. Retrieved April 18, 2016.
  15. ↑ "PARTIAL STURAA TEST 12 YEAR 500,000 MILE BUS from PROTERRA INC. MODEL BE35" (PDF). US: Altoona Bus Research and Testing Center. May 2013. p. 39. Retrieved April 18, 2016.
  16. ↑ Argonne GREET model 2012, assuming 36,000 mi (58,000 km) per year and fuel consumption of 3.86 miles per US gallon (1.64 km/l) diesel and 3.27 miles per US gallon (1.39 km/l) diesel equivalent for CNG.
  17. ↑ Eudy, Leslie; Prohaska, Robert; Kelly, Kenneth; Post, Matthew (January 2016). Foothill Transit Battery Electric Bus Demonstration Results (PDF) (Report). National Renewable Energy Laboratory. Retrieved 13 July 2018.
  18. ↑ Eudy, Leslie; Jeffers, Matthew (June 2017). Foothill Transit Battery Electric Bus Demonstration Results: Second Report (PDF) (Report). National Renewable Energy Laboratory. Retrieved 13 July 2018.
  19. 1 2 3 Eudy, Leslie; Jeffers, Matthew (May 2018). Foothill Transit Battery Electric Bus Progress Report (PDF) (Report). National Renewable Energy Laboratory. Retrieved 13 July 2018.
  20. ↑ Barry, Keith (4 November 2009). "Altairnano batteries make Proterra a magic bus". Wired. Retrieved 12 July 2018.
  21. ↑ "California City First To Get 2nd-Generation Proterra Electric Bus".
  22. ↑ "Electric bus manufacturers BYD and Proterra are making serious moves".
  23. ↑ "Proterra Opens Its Electric Vehicle Fast-Charging Technology to Mass Transit Industry". Proterra. June 28, 2016. Retrieved August 4, 2016.
  24. ↑ Based on testing done at Altoona for manufacturers currently in operation
  25. 1 2 3 4 "Proterra Catalyst Platform Introduction" (PDF). Louisiana Alternative Fuels Conference & Expo. 14 April 2016. Retrieved 13 July 2018.
  26. ↑ "Transit Bus Life Cycle Cost and Year 2007 Emissions Estimation". July 2, 2007. p. 11.
  27. 1 2 "The Proterra Catalyst 35-foot transit vehicle". Proterra. Retrieved 12 July 2018.
  28. ↑ "Proterra introduces two-motor DuoPower drivetrain for its Catalyst electric buses; partnership with Van Hool". Green Car Congress. 9 October 2017. Retrieved 12 July 2018.
  29. 1 2 3 "Proterra introduces new extended range battery pack for electric transit buses; up to 180 miles". Green Car Congress. 24 February 2015. Retrieved 12 July 2018.
  30. 1 2 3 "Proterra launches new Catalyst E2 series electric bus with nominal range of up to 350 miles". Green Car Congress. 12 September 2016. Retrieved 12 July 2018.
  31. ↑ Marshall, Aarian (12 September 2016). "This new electric bus can drive 350 miles on one charge". Wired. Retrieved 12 July 2018.
  32. ↑ "Proterra 40 Foot Bus drivetrain performance" (PDF). Proterra. Retrieved 12 July 2018.
  33. ↑ "We're Bringing All-Electric Double Decker Buses To The SGV!" (Press release). Foothill Transit. 12 July 2018. Retrieved 20 July 2018.
  34. ↑ "Global double deck bus market leader, Alexander Dennis, selects Proterra to power North America's first electric double deck transit bus" (Press release). Proterra. 12 July 2018. Retrieved 20 July 2018.
  35. ↑ "Proterra Company Overview" (PDF). Proterra. 12 September 2017. Retrieved 8 August 2018.
  36. ↑ Barry, Keith (13 September 2010). "Quick-charge electric bus rolls into L.A. County". Wired. Retrieved 7 August 2018.
  37. 1 2 3 Gross, Daniel (5 September 2014). "Further: Forget Tesla. If you really want to reduce vehicle emissions, it's unglamorous buses, not flashy sedans, that need to go electric". Slate. Retrieved 7 August 2018.
  38. ↑ "Fiscal Year 2017 Low or No-Emission (Low-No) Bus Program Projects". Federal Transit Administration. 19 March 2018. Retrieved 7 August 2018.
  39. ↑ "Proterra congratulates the winners of FTA Low-No Grant funding for battery-electric buses" (Press release). Proterra. 26 September 2017. Retrieved 8 August 2018.
  40. ↑ "Proterra Signs Contract with StarMetro to Deliver Zero-Emission EcoRide Transit Buses" (Press release). BusinessWire. 3 October 2011. Retrieved 7 August 2018.
  41. ↑ "Proterra congratulates the winners of FTA Low-No Grant funding for battery-electric buses" (Press release). Proterra. 26 September 2017. Retrieved 7 August 2018.
  42. ↑ Ash, Jim (21 September 2017). "U.S. DOT Giving Star Metro A Miollion-Dollar Re-Charge". WFSU News. Retrieved 7 August 2018.
  43. ↑ Davila, Vianna (26 February 2013). "VIA rolls out electric buses". San Antonio Express-News. Retrieved 7 August 2018.
  44. ↑ Breitler, Alex (11 December 2012). "All-electric mass transit rolling into town". The Stockton Record. Retrieved 7 August 2018.
  45. ↑ "Proterra continues North American market leadership with milestone deployment to San Joaquin RTD" (Press release). Proterra. 13 April 2017. Retrieved 7 August 2018.
  46. ↑ "Proterra to Provide Three EcoRide Zero-Emission Battery-Electric Transit Buses to WRTA" (Press release). Mass Transit. 26 September 2012. Retrieved 7 August 2018.
  47. ↑ Kane, Mark (6 February 2014). "Proterra delivers three additional EcoRide BE35 buses to WRTA". InsideEVs. Retrieved 7 August 2018.
  48. ↑ "CTA Expands Electric Bus Fleet" (Press release). Chicago Transit Authority. 13 June 2018. Retrieved 7 August 2018.
  49. ↑ Baker, David R. (2 May 2017). "Proterra to test self-driving bus in downtown Reno". San Francisco Chronicle. Retrieved 7 August 2018.
  50. ↑ "Reno unveils 4 new electric buses". Las Vegas Review-Journal. Associated Press. 15 April 2014. Retrieved 7 August 2018.
  51. ↑ Lindblom, Mike (August 18, 2015). "5 new trolleys arrive as part of Metro's replacement plan". The Seattle Times. Retrieved September 7, 2015.
  52. 1 2 Ayre, James (16 January 2017). "King County Metro To Buy 120 All-Electric Buses By 2020 (73 Coming From Proterra)". Clean Technica. Retrieved 8 August 2018.
  53. ↑ "King County launches next generation of electric trolleys and previews new battery-powered bus" (Press release). King County Metro. August 18, 2015. Retrieved September 7, 2015.
  54. ↑ "King County Executive announces purchases of battery buses, challenges industry to build next-generation transit" (Press release). King County Executive. 10 January 2017. Retrieved 8 August 2018.
  55. ↑ Ryan, Jacob (12 January 2015). "Zero Emission, All-Electric Buses Take To Louisville Streets". WFPL. Retrieved 7 August 2018.
  56. ↑ "Proterra Sells Seven Battery-Electric Transit Buses to Nashville MTA" (Press release). Proterra. 26 February 2014. Retrieved 7 August 2018.
  57. ↑ Hubbard, Alex (16 May 2016). "Nashville MTA awarded for electric buses". The Tennessean. Retrieved 7 August 2018.
  58. ↑ "Nashville Embraces Zero-Emission Proterra Buses to Achieve Transit Goals". Mass Transit. 13 September 2017. Retrieved 7 August 2018.
  59. ↑ Barnett, Ron (27 February 2015). "Seneca celebrates start of 'world's first' all-electric bus fleet". Greenville News. Retrieved 7 August 2018.
  60. ↑ Gross, Daniel (22 November 2016). "The Electric Company". Slate. Retrieved 7 August 2018.
  61. ↑ "UM Orders Zero-Emission Electric Buses for UDASH Fleet" (Press release). The University of Montana. February 2, 2016. Retrieved April 14, 2016.
  62. ↑ "Zero-emission buses expand west from Worcester". Worcester Business Journal. State House News Service. 12 December 2016. Retrieved 7 August 2018.
  63. ↑ "PVTA Introduces First Battery Electric Buses into Fleet". Mass Transit. 16 December 2016. Retrieved 7 August 2018.
  64. ↑ Hess, Jeffrey (21 July 2015). "Electric Buses Headed To Porterville". Valley Public Radio. Retrieved 7 August 2018.
  65. ↑ "MARTA Goes Green with New Electric Bus Unveiling, Tour March 17th" (Press release). Metropolitan Atlanta Rapid Transit Authority. 13 March 2017. Retrieved 7 August 2018.
  66. ↑ "Fiscal Year 2016 Low or No-Emission (Low-No) Bus Program Projects". Federal Transit Administration. 7 September 2016. Retrieved 7 August 2018.
  67. 1 2 3 4 5 6 7 8 "8 FTA Low-No Grant Winners To Purchase 35 Proterra Electric Transit Buses" (Press release). Cision PR Newswire. 27 July 2016. Retrieved 7 August 2018.
  68. 1 2 Englehardt, Bruce (2 August 2016). "Everett Transit and Pierce Transit to Buy Electric Buses". Seattle Transit Blog. Retrieved 7 August 2018.
  69. 1 2 3 Panoo, Ashleigh (16 November 2016). "Zero-emission buses coming to San Joaquin Valley". The Fresno Bee. Retrieved 7 August 2018.
  70. ↑ "Modesto accepts grant for electric buses". The Modesto Bee. 2 July 2016. Retrieved 7 August 2018.
  71. ↑ Vaifanua, Tamara (17 January 2017). "Park City rolls out its first electric express bus". Fox 13 Salt Lake City. Retrieved 7 August 2018.
  72. ↑ Hamburger, Jay (5 August 2016). "Park City opts for electric buses on a lightning-fast route". Park City Record. Retrieved 7 August 2018.
  73. ↑ Moore, Chris (16 November 2016). "New buses on the way for Port Arthur". The Port Arthur News. Retrieved 7 August 2018.
  74. ↑ "SporTran and Proterra deploy Louisiana's first battery-electric buses in Shreveport" (Press release). Proterra. 8 November 2017. Retrieved 8 August 2018.
  75. ↑ Baker, Karl (25 July 2016). "Electric buses on way to Dover after DART wins grant". The News Journal. Retrieved 7 August 2018.
  76. ↑ "Electric Bus". Municipality of Anchorage. Retrieved 2018-03-09.
  77. ↑ "BGE Adds State-of-the-Art Electric Buses to Company Vehicle Fleet" (Press release). BGE, an Exelon Company. 15 March 2018. Retrieved 8 August 2018.
  78. ↑ "Baltomire Gas and Electric and Proterra deploy nation's first electric shuttle buses at a utility campus" (Press release). Proterra. 15 March 2018. Retrieved 8 August 2018.
  79. ↑ Vosler, Christian (29 April 2018). "Kitsap Transit debuts new electric bus". Kitsap Sun. Retrieved 8 August 2018.
  80. ↑ "Proterra Expands its Catalyst™ EV Bus Platform to Include a Nimbler Bus" (Press release). Proterra. 5 October 2015. Retrieved 7 August 2018.
  81. ↑ Ptacek, Karen (10 January 2018). "DART Demos New Proterra Zero-Emission, All-Electric Buses". DART Daily. Retrieved 7 August 2018.
  82. ↑ Branham, Dana (10 July 2018). "DART's fleet of electric buses roll out in downtown Dallas". Dallas Morning News. Retrieved 7 August 2018.
  83. ↑ Slater, Brady (25 August 2016). "Duluth's electric buses delayed". Duluth News Tribune. Retrieved 7 August 2018.
  84. ↑ Slater, Brady (13 May 2018). "Electric buses arriving soon in Duluth". Duluth News Tribune. Retrieved 7 August 2018.
  85. 1 2 "Greensboro Transit orders Proterra electric buses". Metro Magazine. 13 November 2017. Retrieved 8 August 2018.
  86. ↑ Lagerstam, Leon (17 April 2018). "MetroLINK introduces battery-operated fleet". The Rock Island Dispatch·Argus. Retrieved 7 August 2018.
  87. ↑ "MTA Testing 10 New, All-Electric Buses to Reduce Emissions & Modernize Public Transit Fleet" (Press release). MTA. 8 January 2018. Retrieved 8 August 2018.
  88. ↑ "Mineta San José International Airport selects Proterra to deliver Bay Area's first electric airport bus fleet" (Press release). Proterra. 7 November 2017. Retrieved 8 August 2018.
  89. ↑ Harnack, Leah (23 April 2018). "VTA Pilots Smart Charging System with Rollout of New Electric Buses". Mass Transit. Retrieved 7 August 2018.
  90. ↑ "Washington D.C. Circulator Deploys Proterra Battery Electric Busses Across Nation's Capital" (Press release). Proterra. 20 April 2018. Retrieved 2018-07-04.
  91. ↑ "Yosemite becomes first U.S. National Park to purchase zero-emission buses from Proterra" (Press release). Proterra. 4 December 2017. Retrieved 8 August 2018.
  92. ↑ "SamTrans orders 10 Proterra Catalyst® E2 buses and sets a 100 percent zero-emission fleet goal by 2033" (Press release). Proterra. 14 March 2018. Retrieved 8 August 2018.
  93. ↑ "Los Angeles Department of Transportation wins FTA Low-No Grant and selects Proterra to provide 25 zero-emission buses for one of California's largest bus fleets" (Press release). Proterra. 21 December 2017. Retrieved 8 August 2018.
  94. ↑ "Proterra Enters Canadian Market with First Catalyst® E2 Electric Bus Order from Toronto Transit Commission" (Press release). Cision PR Newswire. 15 June 2018. Retrieved 7 August 2018.
  95. ↑ "Edmonton Transit Makes Move To Battery Electric Buses" (Press release). Indie Garage. 23 August 2018.
  96. 1 2 "Electric bus maker Proterra raises more than $30M; Kleiner Perkins and GM led". Green Car Congress. US. June 19, 2014. Retrieved April 18, 2016.
  97. ↑ http://www.bmwblog.com/2017/06/13/bmw-ventures-announces-strategic-investment-proterra/
  • Official website
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