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As electric bicycles continue to grow in numbers in the US, so too have concerns over the safety of their lithium-ion battery packs. A new safety standard just passed in China may soon have a considerable impact on e-bike fire safety.

E-bike battery fires, while exceedingly rare, have become a major concern in the US with significant news coverage. NYC is often seen as the epicenter of e-bike battery fires due largely to the large population of e-bike delivery riders and the low-quality Chinese batteries used on such bikes. Delivery riders’ e-bikes usually feature inferior-quality batteries in order to reduce costs to their owners, who use them to perform low-wage delivery jobs.

Keeping the issue in perspective, more deaths in NYC are attributed to space heater fires each year than e-bike battery fires, but the rapid growth of e-bike use in the US means that fire safety will continue to be a growing concern.

rad power bikes safe shield battery e-bike batteries

With the vast majority of battery fires originating from poorly produced Chinese batteries designed for ultra-cheap e-bikes and e-scooters, it appears the Chinese government is attempting to address the issue head-on. The country just passed new technical standards for the production of lithium-ion batteries like those used in micromobility devices.

Known as the “Safety Technical Specification for Lithium-ion Batteries Used in Electric Bicycles,” the standards regulate the design, production, and sale of lithium-ion batteries for e-bikes.

The regulations specifically address technical concerns relating to production quality and fire risk, and cover 22 specific aspects of the batteries’ design and manufacturing. Issues addressed include battery over-charging and over-discharging, external short circuits, thermal abuse, battery punctures, and several more key areas.

Electric bicycle batteries at a Chinese factory, waiting to be installed in finished e-bikes

Enforcement of the new standard is expected to begin on November 1, 2024. After that date, no lithium-ion batteries for electric bicycles will be permitted for sale in the country without conforming to the new standard.

The standard currently only addresses the domestic market, which is much larger than China’s e-bike battery export market. There are an estimated 350 million e-bikes on the roads in China, with tens of millions produced each year. In fact, some major Chinese manufacturers alone produce tens of millions of e-bikes and e-scooters each year.

How could the Chinese standard impact US e-bikes?

The vast majority of US-based electric bicycles and their components originate in China. I’ve personally visited several such Chinese factories to see the scale of production that many of these massive suppliers have achieved.

The new Chinese e-bike battery standards are expected to change how electric bicycle batteries are produced in China. Many of the major suppliers of higher-quality batteries likely already meet or exceed the new standards, but the budget-priced batteries known for cutting corners in pursuit of lower costs will likely be weeded out by the regulations.

Unlike in the West, where penalties for breaching standards are often less severe, the Chinese government is more heavy-handed with its control over both private and state-related manufacturing businesses. While that comes with its own litany of issues, it also has the advantage of companies generally respecting and conforming to regulatory standards. That means it likely won’t take very long for battery manufacturers not already meeting these new safety standards to either upgrade their designs and manufacturing or else close down production and switch industries.

Importantly, it appears that the regulations will only apply to China’s domestic market, not products intended for export. However, with China’s market for e-bike batteries dwarfing the rest of the world, it likely won’t make sense for factories to maintain separate production lines and designs for a much smaller export market. Instead, this could very well be a case of a rising tide lifting all ships, where an increase in the manufacturing standards for local e-bike batteries means that export batteries will also come from the same improved production lines.

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European wind stocks tumble after Trump says he will stop new turbine construction

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European wind stocks tumble after Trump says he will stop new turbine construction

A Vestas wind turbine near Baekmarksbro in Jutland. 

Afp | Getty Images

European wind power stocks tumbled Wednesday after President-elect Donald Trump said he would prevent the construction of new turbines.

“We’re going to try and have a policy where no windmills are being built,” Trump told reporters at a press conference at his Mar-a-Lago home in Florida on Tuesday afternoon.

The Danish wind turbine manufacturer Vestas Wind Systems and Danish wind developer Orsted fell about 7% Wednesday in the wake of Trump’s remarks.

The president-elect went on a lengthy attack against wind turbines during yesterday’s press conference, arguing that they are too expensive, require subsidies and lack public support.

Trump’s opposition to wind power creates further challenges for an industry that has already struggled in the face of high interest rates that have raised the cost of developing new projects more expensive. In late 2023, for example, Orsted took a $4 billion writedown and canceled two offshore wind projects off the coast of New Jersey.

Still, wind power has expanded in the U.S., growing from 2.4 gigawatts in 2000 to 150 gigawatts by April 2024, according to data from the Energy Information Administration. Electricity generation from wind hit a record in April 2024 and beat generation from coal-fired plants, according to EIA data.

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New DOE report finds 90% of wind turbine materials are recyclable

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New DOE report finds 90% of wind turbine materials are recyclable

The US Department of Energy (DOE) has released an encouraging new report revealing that 90% of wind turbine materials are already recyclable using existing infrastructure, but tackling the remaining 10% needs innovation.

That’s why the Biden administration’s Bipartisan Infrastructure Law has allocated over $20 million to develop technologies that address these challenges.

Why this matters

The wind energy industry is growing rapidly, but questions about what happens to turbines at the end of their life are critical. Recyclable wind turbines means not only less waste but also a more affordable and sustainable energy future.

According to Jeff Marootian, principal deputy assistant secretary for the Office of Energy Efficiency and Renewable Energy, “The US already has the ability to recycle most wind turbine materials, so achieving a fully sustainable domestic wind energy industry is well within reach.”

The report, titled, “Recycling Wind Energy Systems in the United States Part 1: Providing a Baseline for America’s Wind Energy Recycling Infrastructure for Wind Turbines and Systems,” identifies short-, medium-, and long-term research, development, and demonstration priorities along the life cycle of wind turbines. Developed by researchers at the National Renewable Energy Laboratory, with help from Oak Ridge and Sandia National Laboratories, the findings aim to guide future investments and technological innovations.

What’s easily recyclable and what’s not

The bulk of a wind turbine – towers, foundations, and steel-based drivetrain components – is relatively easy to recycle. However, components like blades, generators, and nacelle covers are tougher to process.

Blades, for instance, are often made from hard-to-recycle materials like thermoset resins, but switching to recyclable thermoplastics could be a game changer. Innovations like chemical dissolution and pyrolysis could make blade recycling more viable in the near future.

Critical materials like nickel, cobalt, and zinc used in generators and power electronics are particularly important to recover.

Key strategies for a circular economy

To make the wind energy sector fully sustainable, the DOE report emphasizes the adoption of measures such as:

  • Better decommissioning practices – Improving how turbine materials are collected and sorted at the end of their life cycle.
  • Strategic recycling sites – Locating recycling facilities closer to where turbines are decommissioned to reduce costs and emissions.
  • Advanced material substitution – Using recyclable and affordable materials in manufacturing.
  • Optimized material recovery Developing methods to make recovered materials usable in second-life applications.

Looking ahead

The DOE’s research also underscores the importance of regional factors, such as the availability of skilled workers and transportation logistics, in building a cost-effective recycling infrastructure. As the US continues to expand its wind energy capacity, these findings provide a roadmap for minimizing waste and maximizing sustainability.

More information about the $20 million in funding available through the Wind Turbine Technology Recycling Funding Opportunity can be found here. Submission deadline is February 11.

Read more: The California grid ran on 100% renewables with no blackouts or cost rises for a record 98 days


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Mazda finally reveals plans to build its first dedicated EV: Here’s what we know so far

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Mazda finally reveals plans to build its first dedicated EV: Here's what we know so far

Mazda is finally stepping up with plans to build its first dedicated EV. The upcoming Mazda EV will be made in Japan and based on a new in-house platform. Here’s what we know about it so far.

The first dedicated Mazda EV is coming soon

Although Mazda isn’t the first brand that comes to mind when you think of electric vehicles, the Japanese automaker is finally taking a step in the right direction.

Mazda revealed on Monday that it plans to build a new module pack plant in Japan for cylindrical lithium-ion battery cells.

The new plant will use Panasonic Energy’s battery cells to produce modules and EV battery packs. Mazda plans to have up to 10 GWh of annual capacity at the facility. The battery packs will power Mazda’s first dedicated EV, which will also be built in Japan using a new electric vehicle platform.

Mazda said it’s “steadily preparing for electrification technologies” under its 2030 Management Plan. The strategy calls for a three-phase approach through 2030.

The first phase calls for using its existing technology. In the second stage, Mazda will introduce a new hybrid system and EV-dedicated vehicles in China.

Mazda-first-dedicted-EV
Mazda EZ-6 electric sedan (Source: Changan Mazda)

The third and final phase calls for “the full-fledged launch” of EVs and battery production. By 2030, Mazda expects EVs to account for 25% to 40% of global sales.

Mazda launched the EZ-6, an electric sedan, in China last October. It starts at 139,800 yuan, or around $19,200, and is made by its Chinese joint venture, Changan Mazda.

Mazda-first-dedicted-EV
Mazda EZ-6 electric sedan (Source: Changan Mazda)

Based on Changan’s hybrid platform, the electric sedan is offered in EV and extended-range (EREV) options. The all-electric model gets up to 600 km (372 miles) CLTC range with fast charging (30% to 80%) in 15 minutes.

At 4,921 mm long, 1,890 mm wide, and 1,485 mm tall with a wheelbase of 2,895 mm, Mazda’s EZ-6 is about the size of a Tesla Model 3 (4,720 mm long, 1,922 mm wide, and 1,441 mm tall with a 2,875 mm wheelbase).

Mazda-first-dedicted-EV-interior
Mazda EZ-6 interior (Source: Changan Mazda)

Inside, the electric sedan features a modern setup with a 14.6″ infotainment, a 10.1″ driver display screen, and a 50″ AR head-up display. It also includes zero-gravity reclining seats and smart features like voice control.

The EZ-6 is already off to a hot sales start, with 2,445 models sold in November. According to Changan Mazda, the new EV was one of the top three mid-size new energy vehicle (NEV) sedans of joint ventures sold in China in its first month listed.

Will Mazda’s first dedicated EV look like the EZ-6? We will find out with Mazda aiming to launch the first EV models on its new in-house platform in 2027. Stay tuned for more.

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