There’s a buzz about green hydrogen. But pink, produced using nuclear, may have a huge role to play too
Both pink and blue have been used to differentiate between different methods of hydrogen production.
Eve Livesey | Moment | Getty Images
From Tesla’s Elon Musk to European Commission President Ursula von der Leyen, the past few years have seen many high-profile names talk about the role hydrogen may — or may not — play in the planet’s shift to a more sustainable future.
Musk has expressed skepticism about hydrogen’s usefulness, but many think it could help to slash emissions in a number of sectors, including transportation and heavy industry.
While there’s a major buzz about hydrogen and its importance as a tool in securing a low-carbon future — a topic that’s generated a lot of debate in recent months — the vast majority of its production is still based on fossil fuels.
Indeed, according to a Sept. 2022 tracking report from the International Energy Agency, low-emission hydrogen production in 2021 accounted for less than 1% of global hydrogen production.
If it’s to have any role in the planned energy transition, then hydrogen generation needs to change in a pretty big way.
“The first thing to say is that hydrogen doesn’t really exist naturally, so it has to be produced,” said Rachael Rothman, co-director of the Grantham Centre for Sustainable Futures at the University of Sheffield.
“It has a lot of potential to help us decarbonize going forwards, but we need to find low-carbon ways of producing it in the first place,” she said, adding that different methods of production had been “denoted different colors.”
“About 95% of our hydrogen today comes from steam methane reforming and has a large associated carbon footprint, and that’s what’s called ‘grey’ hydrogen,” Rothman told CNBC.
Grey hydrogen is, according to energy firm National Grid, “created from natural gas, or methane.” It says that the greenhouse gases associated with the process are not captured, hence the carbon footprint that Rothman refers to.
The dominance of such a method is clearly at odds with net-zero goals. As a result, an array of sources, systems and colors of hydrogen are now being put forward as alternatives.
These include green hydrogen, which refers to hydrogen produced using renewables and electrolysis, with an electric current splitting water into oxygen and hydrogen.
Blue hydrogen, on the other hand, indicates the use of natural gas — a fossil fuel — and carbon capture utilization and storage. There has been a charged debate around the role blue hydrogen could play in the decarbonization of society.
Pink potential
Alongside blue and green, another color attracting attention is pink. Like green hydrogen, its process incorporates electrolysis, but there’s a key difference: pink uses nuclear.
“If you split … water, you get hydrogen and oxygen,” Rothman said. “But splitting water takes energy, so what pink hydrogen is about is splitting water using energy that has come from nuclear.”
This means that “the whole system is low carbon, because … there’s no carbon in water … but also the energy source is also very low carbon because it’s nuclear.”
Alongside electrolysis, Rothman noted that nuclear could also be used with something called a thermochemical cycle.
This, she explained, harnessed very high temperatures to split water into oxygen and hydrogen.
Pink hydrogen already has some potentially significant backers. These include EDF Energy, which has floated the idea of producing hydrogen at Sizewell C, a 3.2-gigawatt nuclear power station planned for the U.K.
“At Sizewell C, we are exploring how we can produce and use hydrogen in several ways,” the firm’s website says. “Firstly, it could help lower emissions during construction of the power station.”
“Secondly, once Sizewell C is operational, we hope to use some of the heat it generates (alongside electricity) to make hydrogen more efficiently,” it adds.
EDF Energy, which is part of the multinational EDF Group, said in a statement sent to CNBC: “Hydrogen produced from nuclear power can play a substantial role in the energy transition.”
The company also acknowledged there were challenges facing the sector and its development.
“Hydrogen is currently a relatively expensive fuel and so the key challenge for low carbon electrolytic hydrogen, whether produced from renewable or nuclear energy, is to bring down the costs of production,” it said.
This needed “supportive policies which encourage investment in early hydrogen production projects and encourage users to switch from fossil fuels to low carbon hydrogen.”
“Growing the market for low carbon hydrogen will deliver the economies of scale and “learning by doing” which will help to reduce the costs of production.”
While there is excitement about the role nuclear could play in hydrogen production and the wider energy transition — the IEA, for example, says nuclear power has “significant potential to contribute to power sector decarbonisation” — it goes without saying that it’s not favored by all.
Critics include Greenpeace. “Nuclear power is touted as a solution to our energy problems, but in reality it’s complex and hugely expensive to build,” the environmental organization says. “It also creates huge amounts of hazardous waste.”
A multi-colored future?
During her interview with CNBC, the University of Sheffield’s Rothman spoke about the bigger picture and the role different types of hydrogen might play. Could we ever see a time when the level of blue and grey hydrogen drops to zero?
“It depends how long a timeframe you’re looking at,” she said, adding that “in an ideal world, they will eventually drop very low.”
“Ultimately, we ideally get rid of all of our grey hydrogen, because grey hydrogen has a large carbon footprint and we need to get rid of it,” Rothman said.
“As we improve carbon capture and storage, there may be a space for blue hydrogen and that’s yet to be evaluated, depending on the … developments there.”
“The pink and green we know there has to be a space for because that’s where you really get the low carbon [hydrogen], and we know it should be, it’s possible to get there.”
Fiona Rayment, chief scientist at the UK National Nuclear Laboratory — which, like EDF Energy, is a member of trade association Hydrogen UK — pressed home the importance of having a range of options available in the years ahead.
“The challenge of net zero cannot be underestimated; we will need to embrace all sources of low carbon hydrogen generation to replace our reliance on fossil fuels,” she told CNBC.
While there has been a lot of talk about using colors to differentiate the various methods of hydrogen production, there is also a lively discussion about whether such a classification system should even exist at all.
“What we want is low carbon hydrogen,” Rothman said. “And I know there is a lot of confusion about the various colors, and I’ve heard some people say … ‘why do we even have the colors, why do we not just have hydrogen and low carbon hydrogen?'”
“And ultimately, it’s the low carbon bit that’s important, and both pink and green would do that.”
BMW Motorrad’s futuristic electric scooter just got its first real refresh since beginning production in 2021. The BMW CE 04, already one of the most capable and stylish electric maxi-scooters on the market, now gets a set of upgraded trim options, new aesthetic touches, and a more robust list of features that aim to make this urban commuter even more appealing to riders looking for serious electric performance on two wheels.
The BMW CE 04 has always stood out for its sci-fi styling and high-performance drivetrain. It’s built on a mid-mounted liquid-cooled motor that puts out 31 kW (42 hp) and 62 Nm of torque. That’s enough to rocket the scooter from 0 to 50 km/h (31 mph) in just 2.6 seconds – quite fast for anything with a step-through frame.
The top speed is electronically limited to 120 km/h (75 mph), making it perfectly capable for city riding and fast enough to hold its own on highway stretches. Range is rated at 130 km (81 miles) on the WMTC cycle, thanks to the 8.9 kWh battery pack tucked low in the frame.
But while the core performance hasn’t changed, BMW’s 2025 update focuses on refining the package and giving riders more options to tailor the scooter to their taste. The new CE 04 is available in three trims: Basic, Avantgarde, and Exclusive.
The Basic trim keeps things clean and classic with a Lightwhite paint scheme and a clear windshield. It’s subtle, sleek, and very much in line with the CE 04’s clean-lined aesthetic. The Avantgarde model adds a splash of color with a Gravity Blue main body and bright São Paulo Yellow accents, along with a dark windshield and a laser-engraved rim. The top-shelf Exclusive trim is where things get fancy, with a premium Spacesilver metallic paint job, upgraded wind protection, heated grips, a luxury embroidered seat, and its own unique engraved rim treatment.
There are also a few new tech upgrades baked into the options list. Riders can now spec a 6.9 kW quick charger that reduces the 0–80% charge time to just 45 minutes (down from nearly 4 hours with the standard 2.3 kW onboard charger). Tire pressure monitoring, a center stand, and BMW’s “Headlight Pro” adaptive lighting system are also available as add-ons, along with an emergency eCall system and Dynamic Traction Control.
BMW has kept the core riding components in place: a steel-tube chassis, 15-inch wheels, Bosch ABS (with optional ABS Pro), and the impressive 10.25” TFT display with integrated navigation and smartphone connectivity. The under-seat storage still swallows a full-face helmet, and the long, low frame design means the scooter looks like something out of Blade Runner but rides like a luxury commuter.
With these updates, BMW seems to be further cementing the CE 04’s role at the high end of the electric scooter market. It’s not cheap, starting around €12,000 in Europe and around US $12,500 in the US, with prices going up from there depending on configuration. However, the maxi-scooter delivers real motorcycle-grade performance in a package that’s easier to live with for daily riders.
Electrek’s Take
I believe that the CE 04’s biggest strength has always been that it’s not trying to be a toy or a gimmick. It’s a real vehicle. Sure, it’s futuristic and funky looking, but it delivers on its promises. And in a market that’s still surprisingly sparse when it comes to premium electric scooters, BMW has had the lane mostly to itself. That may not last forever, though. LiveWire, Harley-Davidson’s electric spin-off brand, has teased plans for a maxi-scooter-style urban electric vehicle in the coming years, but as of now, it remains something of an undefined future plan.
Meanwhile, BMW is delivering not just a concept bike but a mature, well-equipped, and ready-to-ride electric scooter that keeps improving. For riders who want something faster and more capable than a Class 3 e-bike but aren’t ready to jump to a full-size electric motorcycle, the CE 04 hits a sweet spot. It delivers the performance and capability of a commuter e-motorcycle, yet with the approachability of a scooter. And with these new trims and upgrades, it’s doing it with even more style.
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If you’ve ever wondered what happens when you combine a fruit cart, a cargo bike, and a Piaggio Ape all in one vehicle, now you’ve got your answer. I submit, for your approval, this week’s feature for the Awesomely Weird Alibaba Electric Vehicle of the Week column – and it’s a beautiful doozie.
Feast your eyes on this salad slinging, coleslaw cruising, tuber taxiing produce chariot!
I think this electric vegetable trike might finally scratch the itch long felt by many of my readers. It seems every time I cover an electric trike, even the really cool ones, I always get commenters poo-poo-ing it for having two wheels in the rear instead of two wheels in the front. Well, here you go, folks!
Designed with two front wheels for maximum stability, this trike keeps your cucumbers in check through every corner. Because trust me, you don’t want to hit a pothole and suddenly be juggling peaches like you’re in Cirque du Soleil: Farmers Market Edition.
To avoid the extra cost of designing a linked steering system for a pair of front wheels, the engineers who brought this salad shuttle to life simply side-stepped that complexity altogether by steering the entire fixed front end. I’ve got articulating electric tractors that steer like this, and so if it works for a several-ton work machine, it should work for a couple hundred pounds of cargo bike.
Featuring a giant cargo bed up front with four cascading fruit baskets set up for roadside sales, this cargo bike is something of a blank slate. Sure, you could monetize grandma’s vegetable garden, or you could fill it with your own ideas and concoctions. Our exceedingly talented graphics wizard sees it as the perfect coffee and pastry e-bike for my new startup, The Handlebarista, and I’m not one to argue. Basically, the sky is the limit with a blank slate bike like this!
Sure, the quality doesn’t quite match something like a fancy Tern cargo bike. The rim brakes aren’t exactly confidence-inspiring, but at least there are three of them. And if they should all give out, or just not quite slow you down enough to avoid that quickly approaching brick wall, then at least you’ve got a couple hundred pounds of tomatoes as a tasty crumple zone.
The electrical system does seem a bit underpowered. With a 36V battery and a 250W motor, I don’t know if one-third of a horsepower is enough to haul a full load to the local farmer’s market. But I guess if the weight is a bit much for the little motor, you could always do some snacking along the way. On the other hand, all the pictures seem to show a non-electric version. So if this cart is presumably mobile on pedal power alone, then that extra motor assist, however small, is going to feel like a very welcome guest.
The $950 price is presumably for the electric version, since that’s what’s in the title of the listing, though I wouldn’t get too excited just yet. I’ve bought a LOT of stuff on Alibaba, including many electric vehicles, and the too-good-to-be-true price is always exactly that. In my experience, you can multiply the Alibaba price by 3-4x to get the actual landed price for things like these. Even so, $3,000-$4,000 wouldn’t be a terrible price, considering a lot of electric trikes stateside already cost that much and don’t even come with a quad-set of vegetable baskets on board!
I should also put my normal caveat in here about not actually buying one of these. Please, please don’t try to buy one of these awesome cargo e-trikes. This is a silly, tongue-in-cheek weekend column where I scour the ever-entertaining underbelly of China’s massive e-commerce site Alibaba in search of fun, quirky, and just plain awesomely weird electric vehicles. While I’ve successfully bought several fun things on the platform, I’ve also gotten scammed more than once, so this is not for the timid or the tight-budgeted among us.
That isn’t to say that some of my more stubborn readers haven’t followed in my footsteps before, ignoring my advice and setting out on their own wild journey. But please don’t be the one who risks it all and gets nothing in return. Don’t say I didn’t warn you; this is the warning.
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