Environment

Hydrogen planes, electric propulsion and new regulations: Aviation is changing

Published

3 years ago

June 19, 2021

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In this article

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A commercial plane takes off after sunset from Geneva Airport, Switzerland.

FABRICE COFFRINI | AFP | Getty Images

From the Wright brothers’ historic flight in 1903 to the development of supersonic aircraft, the history of aviation has been driven by technology and ambition.

Now, as the 21^st century progresses, the sector continues to show its appetite for innovation and radical design.

Last September, for instance, a hydrogen fuel-cell plane capable of carrying passengers took to the skies over England for its maiden flight.

The same month also saw Airbus release details of three hydrogen-fueled concept planes, with the European aerospace giant claiming they could enter service by the year 2035.

More recently, United Airlines announced it had signed a commercial agreement to purchase aircraft from a firm called Boom Supersonic.

In a statement, United said the Overture aircraft — which is yet to be built — was set to be “optimized to run on 100% sustainable aviation fuel.”

All of the above are linked by a focus on technologies designed to reduce aviation’s environmental footprint. This represents a major task, even if the number of flights last year slumped due to the coronavirus pandemic.

According to the International Energy Agency, carbon dioxide emissions from aviation “have risen rapidly over the past two decades,” hitting almost 1 gigatonne in 2019. This, it notes, equates to “about 2.8% of global CO2 emissions from fossil fuel combustion.”

Elsewhere, the World Wildlife Fund describes aviation as “one of the fastest-growing sources of the greenhouse gas emissions driving global climate change.” It adds that air travel is “currently the most carbon intensive activity an individual can make.”

A variety of solutions

Iain Gray is director of aerospace at the U.K.’s Cranfield University. In a phone interview with CNBC, he described zero carbon as “the top priority” for the industry and sought to emphasize the importance of developing a range of solutions to tackle the challenge.

“The really big technology driver is around the propulsion system,” he explained, “but that doesn’t take away from the importance of new technologies around … new lightweight materials, enhanced carbon composite materials, and the systems itself.”

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Expanding on his point, Gray provided an example of why the innovations on planes flying above our heads should not be viewed in isolation.

“There’s a lot of effort goes into reducing the weight on an aeroplane for it only to spend half an hour circling an airport,” he said.

“So the whole interaction of air traffic management with the aircraft itself is a … very important development and new technologies on airspace management are emerging all the time.”

The power of propulsion

Alongside the development of hydrogen fuel-cell planes there’s also been a lot of discussion around electric propulsion in recent years, with firms such as Volocopter and Lilium developing eVTOL, or electric vertical take-off and landing aircraft.

The key with technologies such as these is the types of journeys to which they can be applied.

“If you look at hydrogen fuel cells and you look at batteries, that really is very much aimed at the smaller aircraft, that’s the sub 1,000 kilometer range,” Cranfield’s Iain Gray said.

“You have to do that in a zero carbon way, there’s no question,” he added. “Is that going to make a big difference to the overall CO2 contributions that aviation makes? No.”

“We need to focus on the longer range flights, flights greater than 1,000 kilometers, flights greater than 3,000 kilometers in particular.”

Fueling change

This focus on long-haul trips will be important in the years ahead, even though they make up a small proportion of flights.

According to a sustainability briefing from Eurocontrol published earlier this year, “some 6% of flights from European airports were long-haul” in 2020, measuring over 4,000 kilometers (around 2,485 miles) in length.

The intergovernmental organization went on to state that “more than half of European aviation’s CO2 emissions were from this tiny proportion of the overall number of flights.”

This viewpoint was echoed by Jo Dardenne, aviation manager at Transport & Environment, a campaign group headquartered in Brussels.

“We shouldn’t forget that the biggest chunk of aviation emissions are linked to long haul flights because you fly longer, you fly higher,” she told CNBC.

“So all in all you’re producing more CO2 … those long haul flights can only be decarbonized by replacing the kerosene that they’re using.”

It’s on these longer journeys that sustainable aviation fuel could have a significant role to play in the future.

Although the European Union Aviation Safety Agency says there’s “not a single internationally agreed definition” of sustainable aviation fuel, the overarching idea is that it can be used to reduce an aircraft’s emissions.

For its part, Airbus describes SAF as being “made from renewable raw material.” It adds that the most common feedstocks are based on crops or used cooking oil and animal fat.

“Currently, the big challenges of sustainable aviation fuel are producing it in the right volumes that are required, and at the right cost point,” Cranfield’s Gray said.

The provenance of feedstocks used for SAF is also important, he explained. “If what you’re doing … to produce sustainable aviation fuel is transporting fuel right across the world using feedstocks from the other side of the planet, then is it really sustainable?”

“The big effort at the moment is looking at how you can produce sustainable aviation fuels in a … green way.” This could be fuel from waste or local resources, Gray added.

One type of fuel generating interest is e-kerosene, which also goes by the name of synthetic kerosene. According to a briefing from T&E published in February, e-kerosene is produced by combining carbon dioxide and hydrogen.

“What’s great about it is that it can be dropped into these jets without any modification of the engine and of the technology of the plane,” Dardenne said.

“It’s a carbon neutral fuel, it’s something that can be easily dropped in,” she added. “The only problem is that it’s very expensive.”

Driving cost down will indeed be key in the years ahead, but organizations like T&E are keen to emphasize the potential environmental benefits of using it.

If the CO2 is “captured from the atmosphere” and hydrogen produced using renewables, T&E says “the combustion of e-kerosene will, apart from some residual emissions, be close to CO2 neutral.”

The future

While technology may be developing, the world also needs to come up with rules and regulations focused on the environmental footprint of air travel.

Examples of these efforts include the Carbon Offsetting and Reduction Scheme for International Aviation and the European Union including carbon dioxide emissions from aviation in its emissions trading system since the year 2012.

In her interview with CNBC, T&E’s Dardenne stressed the importance of “proper regulation.”

She said: “If you price emissions and pollution effectively, then mandate the use of clean technologies, you send the right signals to investors, private and public, to invest in them.”

“The clearer the regulatory framework the more certainty you can provide to the market that these technologies will have a future,” she added.

“And that will actually bring added value, financial added value, as well as environmental added value.”

Looking at the bigger picture, she went on to state that “proper regulation” would come via effective carbon pricing and fuel mandates, describing the latter as an obligation to use clean fuels. These were, she argued, “the cornerstone of effective aviation decarbonization strategy.”

Environment

Kempower, Proviridis partner on novel electric semi truck charging solution

Published

6 hours ago

November 23, 2024

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Kempower, Proviridis partner on novel electric semi truck charging solution

Proviridis develops underground electric truck charging solution

French infrastructure specialists Proviridis have partnered with EVSE manufacturer Kempower to deliver a novel, underground charging solution for electric semi trucks designed to easily integrate into existing truck depots.

By installing its high-powered charging cabinets underground and integrating the charging cables into a solid metal pipe, Kempower and Proviridis have been able to make room for high-powered charging points in an existing truck depot that didn’t have enough space to install either conventional EVSE or overhead “drop lines.”

For the pilot, the metal pipe is painted in a striking yellow color to make it easier to see while maneuvering the lot, and keeping the dispensers themselves more protected than conventional concrete bollards. The 600 kW power cabinet is positioned a few yards away – a typical space-saving Kempower solution – and connected to the charge points by underground cable.

Proviridis believes their solution provides enough of a competitive advantage that fleet buyers looking to electrify will be eager to give it a try.

“The product is durable across a wide spectrum of temperatures and conditions, requires minimal ventilation, and can cater for a wide range of customer needs,” explains Olivier Verdu, Technical Director at Proviridis. “These are features which perfectly place the Kempower solution for this type of charging configuration in a logistics environment.”

Electrek’s Take

While traditional charging equipment can cause up to 20% of an existing truck depot’s parking capacity to be lost, the Kempower products have already gained recognition for the efficient size footprint of its overground Satellites. If this underground version proves to be even better, you can expect to see a lot more Kempower installations near you.

SOURCE | IMAGES: Kempower.

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Environment

For a limited time, save $500 on a Centris folding eBike from Buzz Bicycles

Published

7 hours ago

November 23, 2024

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For a limited time, save 0 on a Centris folding eBike from Buzz Bicycles

In honor of Black Friday and Cyber Monday, eBike specialist Buzz Bicycles is offering an exclusive discount for Electrek readers on its Centris Class 2 Folding Bike.

Buzz Bicycles is back with an exclusive new deal

Buzz Bicycles has been a mainstay on Electrek for a few years now, as we have covered several of its electric bikes, which suit riders of all skill levels and help them “Buzz through life.” Buzz is an omnichannel eBike brand that prioritizes direct-to-consumerism and has found success in its mission to deliver ultimate transportation solutions at an excellent value for its growing base of eBike enthusiasts.

The company strives to deliver riders a “Wow moment,” which is usually brought on as they feel the pedal assist function kick in. This feature delivers all you need to conquer hills and longer rides while enjoying new adventures with friends.

The Buzz team has utilized decades of industry experience into its portfolio of eBikes, all conceived and designed in Dayton, Ohio. The company, which operates under the United Wheels umbrella alongside brands like Huffy Bicycles, Niner Bikes, and Batch Bicycles, has adopted an ethos that the freedom of riding should be fun and accessible for everyone, no matter what adventure lies ahead.

By leveraging the global presence of its parent company, Buzz Bicycles can make good on its promise to deliver affordable eBikes that are comfortable, powerful, and safe, much like the Centris Folding eBike, which is as versatile and compact as it is fun. The exclusive deal Buzz Bicycles is offering on the Centris makes it even more fun. You can take advantage of it below.

But first, you’ll want to learn about the capabilities of this foldable eBike to truly understand its value, as well as what accessories are available to level up your purchase.

The Buzz Centris is an easy to ride foldable eBike for all

The Buzz Centris is a Class 2 Folding eBike built for comfort and convenience no matter where you take it. At full size, the Centris’ step-through frame offers a low step-over height of just 16 inches, perfect for riders of all sizes, enabling easy transitions from ground to saddle for its riders.

When you’re not riding, the Centris from Buzz Bicycles folds neatly to 34 inches in length and 22 inches in height, making it easy to store at home or to carry in a vehicle on the way to your next ride. Furthermore, the assembled bike only weighs 68 pounds, making it easy to transport.

You can easily navigate tougher terrain on the Centris thanks to the eBike’s 20″ x 4″ knobby tires and front suspension. The bike is powered by a 48V, 500-watt-hour (Wh) battery pack that can propel it to a top speed of 20 mph for an all-electric range of up to 40 miles on a single charge.

Additionally, this folding model from Buzz Bicycles comes equipped with both a front and rear rack, offering versatile cargo-carrying options so you can customize your ride with a variety of Buzz accessories.

Like all Buzz eBikes, the Centris is tested and deemed compliant with the UL2849 standard. This standard covers the entire electric bicycle system, including the motor, battery, controller, and charger, offering the highest safety standards for added peace of mind.

The Centris Class 2 folding bike from Buzz is available in two colors: Gloss White or Matte Black. This $1,199 eBike is currently reduced to $899 – and you can score an additional $200 off with this exclusive promo, but only for a limited time.

With the purchase of any Buzz eBike, including the Centris, you are guaranteed the following:

10-year limited warranty (lightweight aluminum frame protected for full 10 years)
2-year limited warranty (electrical components covered by 2-year warranty for peace of mind)
6-month limited warranty (additional bike components protected by a 6-month warranty)

Are you interested in the Centris from Buzz Bicycles? You’ve come to the right place. Starting today, while supplies last, you can take advantage of an additional $200 off the sale price by using promo code “ELECTREK200.“ That’s a $500 discount in total!

Don’t wait, because this deal only runs through 11:59 PM on December 8, 2024.

We highly recommend perusing Buzz’s entire lineup of products. They are designed for commuters and casual riders, with technology and features that help you quickly feel comfortable riding. If you are new to the world of E-transportation, Buzz Bicycles is the brand for you.

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Environment

It begins: Mercedes eActros 600 electric semi truck enters production

Published

8 hours ago

November 23, 2024

admin

It begins: Mercedes eActros 600 electric semi truck enters production

Production starts on eActros long haul electric truck

With up to 500 km (310 miles) of all-electric range, the new Mercedes eActros 600 electric semi truck was designed for long-haul trucking – and now, it’s officially in production at the company’s Wörth plant in Bavaria.

The electrification of Daimler Truck’s Mercedes line is progressing nicely, with the eActros 300 and 400 models handling drayage and short-haul duties, and the eEconic seeing duty in waste disposal and airport refueling. The addition of the new 600 model expands on that work with a truly capable long-haul solution that will help Mercedes’ customers clean up their operations.

“The start of series production of our eActros 600 is a further proof of our ambition to transform the industry,” offers Karin Rådström, CEO of Daimler Truck. “With a range of 500 kilometers on a single battery charge, our eActros 600 is addressing the long-haul segment in Europe which is responsible for two-thirds of CO2 emissions from heavy road freight. Our battery-electric long-haul truck will therefore make a real difference.”

In addition to the 600’s additional range, the newest eActros marks another milestone by becoming the first electric Mercedes semi to be manufactured on a single line (the eActros 300/400 and eEconic leave their standard production lines to have their electric drive components installed at Mercedes’ Future Truck Center in Wörth).

“With the start of series production of the eActros 600, we are expanding our Wörth product portfolio with an important vehicle for the future,” says Andreas Bachhofer, Head of the Wörth site and Production at Mercedes-Benz Trucks. “Construction of this first battery-electric truck made in Wörth will be fully integrated into the existing assembly hall, flexibly alongside the manufacturing of combustion-engine trucks. This means that we are ideally positioned for the production of larger quantities. Our production team is well prepared for the successive ramp-up over the coming months.”

The new electric semi truck features a 600+ kWh battery (hence, eActros 600) that sends power to a new, highly efficient electric drive axle developed in-house by Mercedes-Benz, good enough to “be able to travel significantly more than 1,000 kilometers per day. This is made possible by intermediate charging during the legally prescribed driver breaks – even without megawatt-charging.”

The company claims the massive, 600 kWh battery in the eActros can be charged from 20 to 80 percent in about 30 minutes at a megawatt charging station, which will soon (?) be available across Europe. First deliveries of the new 600 series Mercedes electric semi trucks are expected to begin Q1 of 2025, with production ramping up to full speed soon after.