Scania to test electrically powered trucks on “electric road” under real-life conditions
04 June 2015
In February 2016, Scania will start testing electric trucks on the electric road which will become a reality as the Swedish Transport Administration has now approved support for the Gävle Electric Road project. The project will demonstrate and evaluate conductive technology, which involves electrical transmission through overhead lines above vehicles equipped with a pantograph power collector.
The investment in the Gävle Electric Road project is in line with the Government’s goal of an energy-efficient and fossil-free vehicle fleet by 2030. The project consists of about SEK 77 million (US$9.3 million) in public financing combined with about SEK 48 million (US$5.8 million) in co-financing from the business community and the Gävleborg region.
Scania’s trucks will operate goods transport services on a two-kilometer test route, which is being built between the Port of Gävle and Storvik along European highway 16. The trucks are equipped with an electric hybrid powertrain developed by Scania.
Power to the trucks is transferred from overhead lines through a pantograph power collector mounted on the frame behind the cab. This technology has been developed by Siemens, which since 2013 has conducted trials of electrified trucks together with Scania at its research facility outside Berlin. (Earlier post.)
Siemens’ concept for the electrification of road-freight traffic has three core components:
- Diesel-electric hybrid technology
- Power supply via catenary lines and regenerative braking
- Intelligently controllable pantograph for energy transmission
In normal operation, the hybrid trucks draw electric energy from the catenary system using an adaptive pantograph to establish contact with the overhead wire. Wherever there is no overhead line, the trucks automatically switch over to their diesel-hybrid drive system. This means that they can be used just as flexibly and universally as conventional trucks.
The possibility of operating heavy trucks using electricity in this way means that the truck’s flexibility to perform transport tasks using electricity and as a regular hybrid truck is maintained, while up to 80-90% of the fossil fuel emissions disappear. Operating costs will be low as much less energy is required due to the efficiency of the electric engine, while electricity is a cheaper source of energy than diesel.
The potential fuel savings though electrification are considerable and the technology can become a cornerstone for fossil-free road transport services. Electric roads are also a way to develop more eco-friendly transport services by using the existing road network.—Nils-Gunnar Vågstedt, responsible for Scania’s research in this field
The demonstration facility for conductive technology is part of the Electric Roads Project, which is one of the largest innovation procurement projects currently under way in Europe. In cooperation with the Swedish Transport Administration, the Swedish Energy Agency and VINNOVA, industry and academia will demonstrate and evaluate electric roads as a possible method for reducing the use of fossil energy in the transport system.
Participants in the Gävle Electric Roads project include Gävleborg Region, Siemens and Scania as well as Boliden, SSAB, Sandvik, Stora Enso, Ernst Express, Midroc Elektro, Sandviken Energi, the Port of Gävle, Gävle Energi and the Stockholm School of Economics. The Swedish Transport Administration, the Swedish National Electrical Safety Board and the Swedish Transport Agency have also collaborated closely with the project.
Scania is also participating in another research initiative as part of the Electric Roads Project, where induction technology will be tested in city bus services. A Scania city bus featuring an electric hybrid powertrain will go into daily operation in Södertälje starting in June 2016. There will be a charging station at one of the bus stops where the bus will be able to refill with enough energy in just six-seven minutes to complete the entire journey. (Earlier post.)
WOW is this old school. We had electric buses in Chicago in the 50's? or was it 60's. A lot of maintenance due to weather.
Guess people can't figure out why we don't have those buses anymore.
Posted by: D | 04 June 2015 at 07:13 AM
Sounds like a good idea, a pantograph, batteries and diesel.
It will be a great idea until some fool drives down it with a crane up, or drives along it and puts a crane up.
@D, OK, bad weather may be a problem, but things have come a long way since the 60's and it is probably a solved problem.
Posted by: mahonj | 04 June 2015 at 09:05 AM
Vancouver has been using electric Trollybuses since 1948. It currently sill has 188 (2005) Flyer low floor E40LFR and 74 (2006/2007) low floor articulated Flyer E60LFR in operation on 23 routes.
So far, crane operators/transporters have NOT done any damages.
Posted by: HarveyD | 04 June 2015 at 10:56 AM
Next step is to eliminate railroads. Why have two separate electrical systems when it's already tough to justify commuter rail in most localities, and lack of bridges tunnels and track has slowed most to a crawl at rush hour? Where I live, the "one-seat ride" to NYC is some holy grail for the borough council. And they can't even keep the station clean and waiting room open.
Posted by: kalendjay | 04 June 2015 at 05:51 PM
A simpler solution is described on:
This uses a single overhead line (with both polarities) and conventional pantographs. Also the deviations from the straight path of the truck can be much bigger.
Posted by: Liviu Giurca | 05 June 2015 at 12:48 AM
I wouldn't count railroads out just yet. Because of the low rolling resistance of steel wheels on steel rails trains will always be a very efficient way to transport heavy loads. And of course they can be electrified too.
Posted by: ai_vin | 05 June 2015 at 07:23 AM
Simpler maybe but for trucks the idea would require there be a pantograph on both the tractor AND trailer. Tractor/trailer rigs are so utilitarian because you can trade out the trailer each trip with different types for different cargos. Your idea wouldn't work for a tractor returning without a trailer, would work for one pulling a flatbed, would be a problem if the load was a standard shipping container, etc. Scania’s system OTOH has the pantographs confined to the tractor - which makes trailer swap-outs a snap.
Posted by: ai_vin | 09 June 2015 at 02:58 PM
It is very easy to build a conductive rail into any pavement; A single overhead wire would be useful for many vehicles. With modern insulators a second isolated segmental pavement rail can supply the power when a vehicle signals the need; Electronic converters of small size, low cost and high power have been demonstrated in computers for about thirty years. No power drain from high voltage buried direct current cable when there is no vehicle traffic. Several similar solutions have been designed over the past century, and some are now operating for electric street cars. Two standard rails and an innovative third rail would allow the use of standard design San Francisco USA street cars and others slightly modified. One system uses magnets to pull up a conductor to electrify stationary conductors contacted by the vehicle. The flywheel storage systems mentioned elsewhere on this site from Ricardo can seamlessly supply energy for many feet of missing electrical contact as did the ancient flywheel locomotives of the London suburban electric railways. Actually the Artemis, Ricardo technologies can make internal combustion vehicles twice as efficient to save half the fuel and eliminate much need for electric vehicles on motorways. ..HG..
Posted by: Henry Gibson | 22 June 2015 at 02:07 PM