As Solingen 147.000 litres of Diesel saves

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The local public transport in Germany is to be clean. Solingen sets for new trolleybuses, the driving with E-Motor, if you go by the network. Makes the school?


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Steve Przybilla

Steve Przybilla

Monday, 22.10.2018
04:32 PM

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It buzzes like a power plant, then the trollino trolleybuses 18,75 in motion. From the inside of the articulated bus looks rather simple: yellow holding colorful seat covers, mobile phone outlets with USB connection rods. The particular you notice only when you get off the bus: The Bus depends on the power grid, just like a tram.

At the latest since the Diesel scandal is being discussed in Germany, according to the air quality in the inner cities. A clean urban public transport can make a contribution. Thus, in fine dust-ridden Stuttgart, starting in 2020, several electric buses. The Senate of Berlin toying in the recent local transport plan even with the construction of a new network for trolleybuses.

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Innovative Public Transport:
The development of the “pole taxis”

In North Rhine-Westphalia, Germany, the Stadtwerke have significantly more. The latest Vorzeigebus, the trollino trolleybuses, by the push of a button from the mains and still continue. He is one of four battery-powered O buses (“Bob”), which will be tested this year in the 160.000 inhabitants of the city. Your battery is charging when you are connected to the line.

In Solingen, the “pole taxis” since 1952, the city

“Riding these buses is a lot of fun,” says Thomas Schulz, 51, a bus driver and instructor with the transport operation. Private Schulz has a gas guzzler-a car with 400 HP. In the Job, he’s got the taste of electric mobility. “With this Bus, we even reach our neighboring city of Wuppertal,” says Schulz. Up to 20 kilometers, the Bus can travel solely on battery power.

In Solingen, the “pole taxis” since 1952, the city’s image. Complete electric O-buses do not go. If the power goes out once, you need to start your diesel engine. Since in Solingen, not all lines are electrified, driving half of all buses with internal combustion engine. Sometimes the power lines just before the last stop. In such cases, the entire line needs to be operated by diesel bus.

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Alternatives to the car:
Transport projects in EU cities

The new Hybrid trolley buses are intended to solve exactly this Problem. From 2019, they will be operating in the rule on line 695 used, which is only partially equipped with power lines. Thus, per year up to 147.000 litres of Diesel and 334 tons of CO2 could be saved, it is called by the Transport company.

The University of Wuppertal accompanied the project

“In the long term, we want to personalize our entire transportation electrification,” says Stadtwerke-managing Director Conrad Troullier. Today use of municipal operation of certified Eco-electricity. In the future, if you wanted to use the “Bob’s” completely emission-free. The Federal Ministry of transport, which supports the project with € 15 million, referred to as a “driving innovation laboratory”.

Around 900,000 Euro, the new Hybrid O costs-Bus – considerably more expensive than the previous model, which was delivered without a battery. Whether the noble goals really come true, one must only turn out yet. Since the beginning of the year, the four “Bobs” for testing purposes, roles by Solingen. It had been quite a few teething problems, the person in charge.

Also in the long term, many questions are open: How long will the batteries in the Winter? Their life span is long enough to justify the high investment? And the promise of zero Emissions is that really true? To find answers, to accompany the University of Wuppertal the project.

In Germany, there are only three cities O buses

Thoralf Knote, scientists at the Fraunhofer Institute for traffic and infrastructure systems in Dresden, Germany, is conducting research to buses that are longer in the Electric. “The O-Bus is an incredibly robust over many decades of proven technology,” said Knote. But also very expensive: “A kilometre of power line costs between € 700,000 and one Million euros,” said Knote. “The revenue is calculated only on lines with a high passenger.”

The pure Battery bus coming with a load of only up to 200 miles a day – too little for a big city. Hybrid trolley buses in Solingen, the scientist considers, therefore, an obvious Alternative. “If you know 40 percent of a line with power lines, it’s worth it.” The implementation of fail in Germany, more practical reasons: “In our inner cities of new overhead lines to assemble purely, would be very expensive.”

In fact, there are trolley buses in Germany in three cities: in addition to Solingen, you run in Esslingen (Baden-Württemberg), and Eberswalde (Brandenburg, Germany). And soon, perhaps, also in Berlin, provided the local transport plan is being implemented actually.

Also other equip

With the “Bob” Solingen not alone. The other two O-Bus-cities would like to ban using the state to promote the Diesel engines of your fleet. The Esslinger transport companies have also four battery-powered trolley buses in operation; six more are on order. The vehicles will be used, such as in Solingen, Germany, by the Polish bus manufacturer Solaris.

Eberswalde wanted from 2010 to 2012, the Park O transit buses to renew, with the goal of all vehicles with battery storage. “The industry was not initially, however, still be able to deliver such vehicles,” explains Frank Wruck, managing Director of the Barnimer bus company. For this reason, the company has been able to buy at that time, only such a vehicle.

In the meantime, the technology is more advanced. “We have placed the order, all of the O-buses with a corresponding battery storage equip,” says Wruck. The first battery was already delivered in December. “We think, until the summer of 2019 all of the O are then converted buses.”

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