Review: Haibike Sduro Trekking 4.0 brings durable and reliable components to a solid all-arounder

Haibike, a worldwide locally sold electric bike brand, carves a place in the middle of the road with the flexible Sduro Trekking 4.0.

In the past, Haibike carried about 50 different models in a variety of sizes, component level, tire size, and frame option. Lately, they’ve reduced their USA offering to less than 20 models, and I think it’s a change for the better. One of the models that made the cut is the quite flexible model called the Sduro Trekking 4.0.

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Source: Charge Forward

IEA case study #2: electric buses in Santiago, Chile

The International Energy Agency’s Global EV Outlook is an annual publication that reports on the current state of electric mobility around the world. This year’s report notes the rapid proliferation of plug-in vehicles—from a mere 17,000 in 2010 to some 7.2 million in 2019. The growth has been concentrated in a few regions—47% of the world’s plug-ins are in China—but it is gradually expanding geographically. Nine countries had more than 100,000 plug-in cars on the road in 2019, and market share has passed 1% in at least 20 countries.

One country that has been aggressively deploying electric buses is Chile. In 2017, Metbus, a private bus operator in the capital, Santiago, partnered with Italian utility Enel and BYD to bring two electric 12-meter BYD K9FE buses to Santiago. After a year-long pilot, operating costs were calculated at $0.10/km, compared to a cost of $0.43/km for a comparable diesel bus.

Following the pilot, Metbus worked with BYD and Enel X, an Enel subsidiary, to add an additional 100 BYD K9FE buses in 2019. Each bus costs an estimated $295,000. Enel X financed the buses, and leased them to Metbus for 10 years, after which ownership will be transferred to Metbus. Metbus operates the buses and provides basic maintenance. BYD handles major maintenance operations, including battery packs and electric drivetrains, for a fixed rate of $0.09/km.

The charging infrastructure consists of 100 BYD EVA 080KI AC chargers that deliver up to 80 kW.

The total amount of the agreement between Metbus and Enel X is estimated to be in the range of $40 million. This amount includes the costs of grid upgrades at two charging locations, estimated to have been around $3 million at each depot.

The e-buses operate along Avenida Grecia, a major axis in Santiago. There are 40 new state-of-the-art bus stops, which include free WiFi, USB chargers, bus arrival time displays, solar panels, LED lighting and wheelchair access.

Metbus has now increased its fleet to 285 BYD e-buses, and plans to add 150 more by the end of 2020.

Also in 2017, a similar partnership led by French utility Engie launched a pilot with a Yutong E12 12-meter bus in Santiago. This bus had estimated operational costs of around $0.05/km. Following the pilot, Engie agreed to finance an additional 100 e-buses for two local operators: Buses Vule and STP. The total cost of this deal is estimated at around $30 million, or $300,000 per bus.

The STP terminal will have 13 150 kW DC chargers to operate 25 electric buses, and the Buses Vule terminal at Rinconada, which opened in March 2019, includes 37 150 kW DC chargers to handle 75 buses. The cost per charger is estimated to be between $20,000 to $40,000 per unit.

In March 2020, NEoT Green Mobility financed 25 King Long DM2800 electric 12-meter buses for operator Redbus. The financial arrangements mirror the Engie and Enel business model of providing separate asset ownership for infrastructure and buses to a local transport operator.

Chile’s federal government has set a goal of electrifying the country’s entire bus fleet by 2040.

SEE ALSO: IEA case study: electric buses in Helsinki, Finland

EGEB: More then 350,000 UK homes will have EV home chargers by 2025

In today’s Electrek Green Energy Brief (EGEB):

  • More than 350,000 UK homes will be fitted with an EV home charger by 2025 as EV popularity surges.
  • British Gas makes the largest EV order for a commercial fleet in the UK with Vauxhall.
  • If you live in the US and you think your home electricity bill is higher, you’re not imagining things.

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Source: Charge Forward

First picture of Tesla Model Y and Mustang Mach-E side by side as Ford benchmarks them

The first picture of a Tesla Model Y and Ford Mustang Mach-E side by side has emerged as part of Ford’s effort to benchmark the electric vehicles. This gives us a quick size comparison in the process. more…

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Source: Charge Forward

Silica-based cathodes could enable long-life lithium-sulfur batteries

Scientists from the Daegu Gyeongbuk Institute of Science and Technology (DGIST) have developed a silica-based cathode for lithium-sulfur batteries, which they say could enable batteries that last for over 2,000 charge/discharge cycles. 

Lithium-sulfur batteries (LSBs)—composed of a sulfur-based cathode and lithium anode submerged in a liquid electrolyte—are promising candidates to replace lithium-ion batteries because of their low cost, non-toxicity and the abundance of sulfur. But using sulfur in batteries is tricky for two reasons. First, during the discharge cycle, soluble lithium polysulfides (LiPS) form at the cathode, diffuse into the electrolyte, and easily reach the anode, where they progressively degrade the capacity of the battery. Second, sulfur is non-conducting, so a conductive and porous host material is required to accommodate sulfur and simultaneously trap LiPS at the cathode. In the past, carbon-based host structures have been explored because of their conductivity. However, carbon-based hosts cannot trap LiPS.

First author of the study and Ph. D. candidate Byong-June Lee next to Prof Jong-Sung Yu.

In a recent study published in Advanced Energy Materials, DGIST scientists proposed a novel host structure called “platelet ordered mesoporous silica” (pOMS). What is unusual about their choice is that silica, a low-cost metal oxide, is actually non-conducting. However, silica is highly polar and attracts other polar molecules such as LiPS.

Upon application of a conductive carbon-based agent to the pOMS structure, the initial solid sulfur in the pores of the structure dissolves into the electrolyte, where it diffuses toward the conductive carbon-based agent to be reduced to generate LiPS. In this manner, the sulfur effectively participates in the necessary electrochemical reactions despite the silica’s non-conductivity. Meanwhile, the polar nature of the pOMS ensures that the LiPS remains close to the cathode and away from the anode.

The scientists also constructed an analogous non-polar, highly conductive conventional porous-carbon host structure to run comparative experiments with the pOMS structure. Professor Jong-Sung Yu, who led the study, remarked, “The battery with the carbon host exhibits high initial capacity that soon drops due to the weak interaction between non-polar carbon and LiPS. The silica structure clearly retains much more sulfur during continuous cycles; this results in much greater capacity retention and stability over as many as 2,000 cycles.”

According to the researchers, host structures for LSBs need not be as conductive as was previously thought. Yu commented, “Our results are surprising, as no one ever thought that non-conductive silica could be a highly efficient sulfur host and even outperform state-of-the-art carbon hosts.” This study broadens the selection of host materials for LSBs and could lead to next-generation sulfur batteries.

Leipzig electric buses to use Siemens fast charging infrastructure

Public transport operator Leipziger Verkehrsbetriebe (LVB), which serves the city of Leipzig, Germany, has ordered 21 electric low-floor buses from VDL Bus & Coach. Siemens Smart Infrastructure will provide the charging infrastructure.

“Switching to electric bus transport requires not only the vehicles but also an efficient charging infrastructure that guarantees reliable operation,” said Boris Höltermann, Managing Director of VDL Bus & Coach Germany.

Siemens will deliver four terminal stations, with a total of five Sicharge UC 600 fast charging units, with effective power of 450 kW, for opportunity charging. The medium-voltage connection, the transformer and the low-voltage power distribution will be integrated into the charging stations to keep them compact.

At the depot, buses will be charged overnight or during breaks, using 21 Sicharge UC 100 charging units, with charging power of up to 100 kW. In both systems, the connection is realized via contact hoods—pantograph devices that extend upwards from the bus roofs to initiate charging.

Leipzig’s new e-buses are scheduled to go into operation in 2021.

“During the planning stage, it is important to design the overall system according to the customer’s individual needs, including power supply, charging technology and control of the charging processes,” said Jean-Christoph Heyne, Head of Future Grids at Siemens Smart Infrastructure. “This requires the best possible combination of the energy, mobility, and building worlds.”

British Gas places the UK’s largest EV commercial fleet order with Vauxhall

British Gas has ordered 1,000 of the new Vauxhall electric Vivaro-e vans for its engineers — the largest EV order for a commercial fleet in the UK. They’ll arrive over the next 12 months.

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Source: Charge Forward