NASA’s first fully electric plane, the X-57 Maxwell, is gearing up for flight after its cruise motor controllers successfully passed critical testing.
The X-57 project is part of NASA’s early efforts to develop sustainable aviation solutions as the agency’s first all-experimental electric aircraft.
The fully electric plane has been developing for several years now and is finally about to take flight. In December 2017, NASA Engineers successfully tested the X-57 battery system, validating it had the required capacity to safely power an entire flight profile.
After several configurations, the X-57, in its final form, features two larger electric cruise motors (60 kW) and 12 smaller electric high-lift motors (10.5 kW) along the front edge of the wings. The e-motors are specifically designed to generate enough power to take off at standard Tecnam P20006T speeds.
To get the X-57 plane airborne, the high lift motors and propels activate, along with the wingtip cruise motors. After the plane levels out to cruise, the high lift motors reactive, and five propeller blades from each motor will stop rotating and fold away to avoid drag.
NASA has three goals it wants to achieve with its electric plane, including:
Zero in-flight carbon emissions
A 500% increase in high-speed cruise efficiency
A quieter environment for those of us on the ground
The X-57 features two 400 lb air-cooled lithium-ion battery packs supplying 69.1 kWh energy (47 kWh usable).
NASA took a massive step toward the X-57 Maxwell’s first flight this week after passing a critical thermal test.
NASA’s first electric plane is almost ready for flight
In a press release, NASA said it has passed a critical milestone as the cruise motors on the X-57 Maxwell electric plane have successfully passed thermal testing.
The controllers were tested at NASA’s Glenn Research Center in Clevland under temperatures from minus 11 to 147 degrees Fahrenheit.
As the cruise motors power the propellers, the system must be able to withstand extreme weather conditions during flight. The controllers deliver 98% efficiency during high-power take-off and cruise settings using silicon carbide transistors. In other words, they don’t generate excessive heat and can be cooled by air flowing through the motor.
With thermal testing complete, NASA’s electric plane is one step closer to flight. An incoming flight readiness review will be the next step at the agency’s Armstrong Flight Research Center in California.
NASA has big ambitions for its first electric airplane, stating:
The design driver for X-57 will also seek to reach the goal of zero carbon emissions in flight, which would surpass the 2035 N+3 efficiency goals. Electric propulsion provides not only a five-to-ten times reduction in greenhouse gas emissions, but it also provides a technology path for aircraft to eliminate 100 Low Lead AvGas, which is the leading contributor to current lead environmental emissions.
In addition, the agency adds, the electric plane can run on renewable energy, making it the clear environmental and economical choice.
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Wind energy powered 20% of all electricity consumed in Europe (19% in the EU) in 2024, and the EU has set a goal to grow this share to 34% by 2030 and more than 50% by 2050.
To stay on track, the EU needs to install 30 GW of new wind farms annually, but it only managed 13 GW in 2024 – 11.4 GW onshore and 1.4 GW offshore. This is what’s holding the EU back from achieving its wind growth goals.
Three big problems holding Europe’s wind power back
Europe’s wind power growth is stalling for three key reasons:
Permitting delays. Many governments haven’t implemented the EU’s new permitting rules, making it harder for projects to move forward.
Grid connection bottlenecks. Over 500 GW(!) of potential wind capacity is stuck in grid connection queues.
Slow electrification. Europe’s economy isn’t electrifying fast enough to drive demand for more renewable energy.
Brussels-based trade association WindEurope CEO Giles Dickson summed it up: “The EU must urgently tackle all three problems. More wind means cheaper power, which means increased competitiveness.”
Permitting: Germany sets the standard
Permitting remains a massive roadblock, despite new EU rules aimed at streamlining the process. In fact, the situation worsened in 2024 in many countries. The bright spot? Germany. By embracing the EU’s permitting rules — with measures like binding deadlines and treating wind energy as a public interest priority — Germany approved a record 15 GW of new onshore wind in 2024. That’s seven times more than five years ago.
If other governments follow Germany’s lead, Europe could unlock the full potential of wind energy and bolster energy security.
Grid connections: a growing crisis
Access to the electricity grid is now the biggest obstacle to deploying wind energy. And it’s not just about long queues — Europe’s grid infrastructure isn’t expanding fast enough to keep up with demand. A glaring example is Germany’s 900-megawatt (MW) Borkum Riffgrund 3 offshore wind farm. The turbines are ready to go, but the grid connection won’t be in place until 2026.
This issue isn’t isolated. Governments need to accelerate grid expansion if they’re serious about meeting renewable energy targets.
Electrification: falling behind
Wind energy’s growth is also tied to how quickly Europe electrifies its economy. Right now, electricity accounts for just 23% of the EU’s total energy consumption. That needs to jump to 61% by 2050 to align with climate goals. However, electrification efforts in key sectors like transportation, heating, and industry are moving too slowly.
European Commission president Ursula von der Leyen has tasked Energy Commissioner Dan Jørgensen with crafting an Electrification Action Plan. That can’t come soon enough.
More wind farms awarded, but challenges persist
On a positive note, governments across Europe awarded a record 37 GW of new wind capacity (29 GW in the EU) in 2024. But without faster permitting, better grid connections, and increased electrification, these awards won’t translate into the clean energy-producing wind farms Europe desperately needs.
Investments and corporate interest
Investments in wind energy totaled €31 billion in 2024, financing 19 GW of new capacity. While onshore wind investments remained strong at €24 billion, offshore wind funding saw a dip. Final investment decisions for offshore projects remain challenging due to slow permitting and grid delays.
Corporate consumers continue to show strong interest in wind energy. Half of all electricity contracted under Power Purchase Agreements (PPAs) in 2024 was wind. Dedicated wind PPAs were 4 GW out of a total of 12 GW of renewable PPAs.
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In the Electrek Podcast, we discuss the most popular news in the world of sustainable transport and energy. In this week’s episode, we discuss the official unveiling of the new Tesla Model Y, Mazda 6e, Aptera solar car production-intent, and more.
As a reminder, we’ll have an accompanying post, like this one, on the site with an embedded link to the live stream. Head to the YouTube channel to get your questions and comments in.
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The Chinese EV leader is launching a new flagship electric sedan. BYD’s new Han L EV leaked in China on Friday, revealing a potential Tesla Model S Plaid challenger.
What we know about the BYD Han L EV so far
We knew it was coming soon after BYD teased the Han L on social media a few days ago. Now, we are learning more about what to expect.
BYD’s new electric sedan appeared in China’s latest Ministry of Industry and Information Tech (MIIT) filing, a catalog of new vehicles that will soon be sold.
The filing revealed four versions, including two EV and two PHEV models. The Han L EV will be available in single- and dual-motor configurations. With a peak power of 580 kW (777 hp), the single-motor model packs more power than expected.
BYD’s dual-motor Han L gains an additional 230 kW (308 hp) front-mounted motor. As CnEVPost pointed out, the vehicle’s back has a “2.7S” badge, which suggests a 0 to 100 km/h (0 to 62 mph) sprint time of just 2.7 seconds.
To put that into perspective, the Tesla Model S Plaid can accelerate from 0 to 100 km in 2.1 seconds. In China, the Model S Plaid starts at RBM 814,900, or over $110,000. Speaking of Tesla, the EV leader just unveiled its highly anticipated Model Y “Juniper” refresh in China on Thursday. It starts at RMB 263,500 ($36,000).
BYD already sells the Han EV in China, starting at around RMB 200,000. However, the single front motor, with a peak power of 180 kW, is much less potent than the “L” model. The Han EV can accelerate from 0 to 100 km/h in 7.9 seconds.
At 5,050 mm long, 1,960 mm wide, and 1,505 mm tall with a wheelbase of 2,970 mm, BYD’s new Han L is roughly the size of the Model Y (4,970 mm long, 1,964 mm wide, 1,445 mm tall, wheelbase of 2,960 mm).
Other than that it will use a lithium iron phosphate (LFP) pack from BYD’s FinDreams unit, no other battery specs were revealed. Check back soon for the full rundown.