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Current issue

ELEKTRO 7/2020 was released on June 24th 2020. Its digital version will be available on July 24th 2020.

Topic: Cables, conductors and cable engineering

Main Article
New traction power supply technology 25 kV/50 Hz (part 2)

SVĚTLO (Light) 3/2020 was released on June 8th 2020. Its digital version will be available on July 8th 2020.

Professional organizations activities
Announcement: LUMEN V4 2020 is cancelled
What is new in CIE, April 2020

Accessories of lighting installations
Foxtrot as a “Master Control” in Hotel Breukelen
Lighting regulators – control of lighting on the constant level

This New Electric Bus Can Drive 350 Miles on One Charge

21. 9. 2016 | Wired | www.wired.com

The bus from Proterra, a leading North American manufacturer, is set to hit the streets next year. With up to 350 miles per charge - enough, in many places, for a full day’s worth of routes. Last month, this Goliath logged 600 miles on a Michelin track on one juice.

Personal electric cars are great, but larger vehicles like buses and trucks (at least those that operate in cities) are arguably better. Public buses, in particular, are perfect candidates for electrification. They drive predictable routes, so don’t need a sprawling charging infrastructure. Long charge times  don’t matter, since they’re usually parked overnight. Electric buses save money on fuel and maintenance, and some cities qualify for pro-electrification local and federal subsidies.

New Proterra electric bus

The secret to the new Proterra bus’s longevity is its twin mattress-sized battery pack. It can store up to 660 kWh, helpful when motoring a 27,000-pound, 40-foot bus. Compare that to the relatively mini batteries behind your favorite electric passenger car: 60 kWh in the Chevy Bolt, and 100 kWh in the largest Tesla Model S.

Lightweight materials help on range. So does the Prius-style regenerative braking system, which can help re-capture up to 92 percent of the bus’s kinetic energy. This is the only thing that current bus drivers will have to relearn.

Read more at Wired

Image Credit: Proterra

-jk-