Proterra has announced the first sale of its second-generation battery-electric bus to Foothill Transit of West Covina, California. Foothill Transit, which became Proterra’s first customer in 2010, has agreed to purchase two more buses from the company, to be delivered in December. The new model has a 220 kW peak permanent magnet motor, a Proterra… Read more »
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Get ready for the Tesla Model III
Tesla is a trendsetter and ground-breaker in many areas, but thinking up model names for its cars doesn’t seem to be one of them. Following the Roadster, Model S and Model X will be the company’s third-generation vehicle, the Tesla Model III. The historic mass-market vehicle was originally to be named the Model E, which… Read more »
BMW and Samsung expand supply agreement for battery cells
BMW and Samsung SDI plan to expand their supply relationship for EV battery cells. The two companies have signed a memorandum of understanding that includes an increase in quantities delivered as well as further technological development of battery cells. BMW produces high-voltage batteries for the i3, i8 and other future hybrid vehicles at its plant… Read more »
Phinergy CEO on aluminum-air batteries and 1,000-mile range-extended EVs
Along with its industry giant partner Alcoa, Israeli startup Phinergy says it has aluminum-air batteries for EVs in the can. More than 550 feet over the National Mall in Washington, DC, the single most significant piece of American aluminum triangulates a point between the White House, the US Capitol, and the Lincoln Memorial. It is… Read more »
White House response to pro-Tesla petition (a year later): We can’t pre-empt state law
Remember that petition that circulated a year ago, asking the White House to intervene in the War of the Car Lots, and allow Tesla to sell its vehicles directly to consumers? An answer finally came this week and, as expected, it merely states that the federal government has no authority in the matter. The official response,… Read more »
Q&A with Ian Wright: The CEO of Wrightspeed on Tesla, gas turbines and electric trucks
Ian Wright is originally from New Zealand. He came to California in 1993, where he happened to be a neighbor of Tesla founder Martin Eberhard. He worked with optical switching systems at a company called Altamar Networks until it went out of business, then decided he wanted to start his own company. Eberhard and his… Read more »
Powerful and clean: Volvo’s new XC90 PHEV
Volvo’s new XC90 SUV, to be launched later this year, claims to be the world’s most powerful and cleanest SUV. The all-wheel-drive seven-seater will offer a range of powertrain options, of which the top of the line will be the “Twin Engine” PHEV. A two-liter, four-cylinder supercharged and turbocharged Drive-E gasoline engine powers the front… Read more »
For a better battery, hit the beach!
Who knew? The miracle material that could enable a game-changing battery breakthrough is (drumroll, please)…beach sand. Researchers at the University of California Riverside have created a lithium-ion battery that outperforms the current industry standard by three times, using a nanoscale silicon dioxide anode. “This is the holy grail – a low cost, non-toxic, environmentally friendly… Read more »
ChargePoint public chargers are more numerous than McDonald’s
One of the top reasons people cite for not buying an EV is a lack of charging stations. But as the number of public chargers explodes, that’s looking more and more like a lack of information. In fact, there are a lot of public charging stations out there, especially in the more EV-savvy regions of… Read more »
A closer look at the semiconductor switch
In this article I’ll be giving an overview of that most important of power electronics components: the semiconductor switch. I’ll first address what a switch is, and then delve into some of the more important compromises and shortcomings that exist in real-world switches that engineers must contend with when designing chargers, motor controllers, DC-DC converters… Read more »