US transit agencies moving cautiously on electric buses
December 14 2017 12:48 AM

Communities across the United States are looking to replace their dirty diesel buses, ushering in what some analysts predict will be a boom in electric fleets.
But transit agencies doing the buying are moving cautiously.
Out of more than 65,000 public buses plying US roads today, just 300 are electric.
Among the challenges: EVs are expensive, have limited range and are unproven on a mass scale.
A typical 40-ft electric bus costs around $750,000, compared with about $435,000 for a diesel bus.
Cheaper fuel and maintenance expenses can lower the overall costs over the 12-year life of the vehicles.
But those costs can widely vary depending on utility rates, terrain and weather.
The technology is still a gamble for many cities at a time when bus ridership is falling nationwide and officials are trying to keep a lid on fares, says Chris Stoddart, an executive at Canadian bus maker New Flyer Industries Inc.
A top supplier of conventional buses to the US market, the company has just a handful of pure battery electrics in service.
“People worry about being an early adopter. Remember 20 years ago someone paid $20,000 for a plasma TV and then 10 years later it was $900 at Best Buy,” said Stoddart, senior vice president of engineering and customer service for New Flyer.”People just don’t want a science project.”
Rival electric bus manufacturers expect dramatic growth; the most ambitious forecasts call for all bus purchases to be electric by 2030.
But even green-energy advocates are sceptical of such rosy predictions.
CALSTART, a California-based nonprofit that promotes clean transportation, figures 50% to 60% of new buses will be zero emissions by 2030.
Market research firm Navigant Research expects electric buses to make up 27% of new US bus sales by 2027.
Transit agencies have found EV performance lags in extreme conditions.
In environmentally friendly San Francisco, officials have resisted electrics over concerns about the city’s famously steep hills.
“The technology isn’t quite there yet,” Erica Kato, a spokeswoman for the San Francisco Municipal Transportation Agency, said in a statement.
Weather is also a major challenge.
An electric bus tested last year near Phoenix wilted in the summer heat due to the strains of running the air conditioning.
The vehicle never achieved more than 89.9 miles on a charge, less than two-thirds of its advertised range, according to a report by the Valley Metro Regional Public Transportation Authority.
In Massachusetts, two agencies running small numbers of electric buses — the Pioneer Valley Transit Authority in Springfield and Worcester’s Regional Transit Authority — say the vehicles weaken in extreme cold and snow.
They have no plans to acquire additional EVs, officials at those agencies said.
Even places with successful pilots have downplayed expectations.
Seattle’s King County Metro transit agency soon will be operating more than a dozen vehicles by three manufacturers, according to Pete Melin, director of zero emission fleet technologies.
The agency likes what it has seen so far.
Still, Melin said, high electricity rates from the local utility at peak demand periods are a concern.
And the lack of a uniform charging system among bus makers has complicated Seattle’s goal of running an all-electric fleet by 2034.

There are no comments.

LEAVE A COMMENT Your email address will not be published. Required fields are marked*