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.”
Environment
NIO’s EV sales top 20,000 for the sixth straight month as new low-cost SUV shows promise
With its new electric SUV rolling out, NIO’s (NIO) sales topped the 20,000 mark again in Oct, its sixth straight month hitting the milestone.
NIO sold 20,976 vehicles last month, up 30.5% from October 2023. The NIO brand sold 16,657 vehicles, while its new “family-oriented smart vehicle brand,” Onvo, contributed 4,319 in its first full sales month.
After launching its new mid-size Onvo L60 electric SUV in September, NIO said production and deliveries are steadily ramping up.
At the end of October, NIO’s Onvo had 166 Centers and Spaces throughout 60 cities. Onvo plans to continue expanding its network to drive future growth.
NIO’s new electric SUV starts at around $21,200 (149,900) and is a direct rival to Tesla’s Model Y. The base $21K model is if you rent the battery. Even with the battery included, Onvo L60 prices still start at under $30,000 (206,900 yuan), with a CLTC range of up to 341 miles (555 km). That’s still less than the Model Y.
Tesla’s Model Y RWD starts at around $35,000 (249,900 yuan) with 344 mi (554 km) CLTC range in China.
NIO’s new Onvo brand drives higher Oct sales
NIO has often compared its new electric SUV to the Model Y, claiming it’s superior in many ways. The L60 has better consumption at 12.1 kWh/100km compared to the Model Y at 12.5 kWh/100km).
With a longer wheelbase (2,950 mm vs 2,890 mm), NIO’s electric SUV also provides slightly more interior space.
Despite the L60’s success so far, NIO believes its second Onvo model will be an even bigger hit. It could be a potential game-changer.
“If you think the L60 is good, then this new model is a much more competitive product,” NIO’s CEO William Li told CnEVPost after launching the L60. Onvo will launch a new EV every year. Following the L60, Onvo will launch a new mid-to-large-size electric SUV next year.
NIO’s leader claims the new model will be revolutionary. According to Li, it will offer even more surprises than the L60. Deliveries are planned to begin in Q3 2025.
| NIO Onvo L60 vs Tesla Model Y trims | Range (CLTC) |
Starting Price |
| NIO Onvo L60 (Battery rental) | 555 km (341 mi) 730 km (454 mi) |
149,900 yuan ($21,200) |
| NIO Onvo L60 (60 kWh) | 555 km (341 mi) | 206,900 yuan ($29,300) |
| NIO Onvo L60 (85 kWh) | 730 km (454 mi) | 235,900 yuan ($33,400) |
| NIO Onvo L60 (150 kWh) | +1,000 km (+621 mi) | TBD |
| Tesla Model Y RWD | 554 km (344 mi) | 249,900 yuan ($34,600) |
| Tesla Model Y AWD Long Range | 688 km (427 mi) | 290,900 yuan ($40,300) |
| Tesla Model Y AWD Performance | 615 km (382 mi) | 354,900 yuan ($49,100) |
Local reports suggest a six-or seven-seat electric SUV could hit the market even sooner. With rumors of a launch around Q1 2025, deliveries could happen as soon as May 2025.
According to sources close to the matter, the L60 is just a “stepping stone” with even more exciting EVs on the way. The source claimed the new six-seat option will start at around $42,100 (300,000 yuan).
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Velotric Ebikes are designed by some of the most brilliant minds in the business. And now, you have the opportunity to own one (or two!) of these high-performance, elegant, reliable rides. You won’t want to miss these fantastic early-bird Black Friday deals running from November 1-14, and, also get a sneak peek at special offers that start on November 8.
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Dominion Energy has hit a major milestone in the construction of its Coastal Virginia Offshore Wind (CVOW) project. The company has put in place 78 monopile foundations and four offshore substation foundations during the first installation season, surpassing its initial target of 70 monopiles.
The 2.6-gigawatt (GW) project is located 27 miles off the coast of Virginia Beach and is the US’s largest offshore wind farm under construction.
When complete, CVOW will feature 176 turbines generating enough clean energy to power up to 660,000 homes. Dominion Energy expects the project to save customers $3 billion in fuel costs over the first decade of operation. Construction is on track and on budget, with a projected completion date in late 2026. The project is currently 43% finished.
For the next few months, Dominion will focus on installing the first offshore substation, laying export cables, continuing onshore transmission work, and placing transition pieces on top of monopiles to prepare for turbine installation in 2025.
The monopiles, which are single vertical steel cylinders that support the wind turbines, are being staged at Portsmouth Marine Terminal. They were manufactured by Rostock, Germany-based EEW SPC, and will support turbines supplied by Siemens Gamesa. Installation of the remaining monopiles will resume in May 2025 as planned.
The planned pause is to safeguard the endangered North Atlantic right whale during its migration period through the project area.
CVOW is also boosting Virginia’s economy. Nearly 1,000 workers from the state, including more than 800 in the Hampton Roads area, have been involved in the project so far. Once operational, the CVOW wind farm is expected to create over 1,000 local jobs for ongoing maintenance and operations.
Read more: The US’s largest offshore wind farm just got its first monopile
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