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In the first part of this series, I projected and explained the plummeting hydrogen demand from petroleum refining and fertilizer, the biggest sources of demand today, through 2100. In the second part, I explored the flat demand segments, and the single source of significant demand increase I see for hydrogen in the next 20 years. In this final assessment, I look at the great but false hopes for a hydrogen economy: transportation, long-term storage, and heat.

Hydrogen demand through 2100 by author

Hydrogen demand through 2100, by author.

Transportation — 0 rising to 1 (one) million tons H2

This is one of the great hopes of the current fossil fuel industry, and a couple of car companies which have managed to capture their governments in Korea and Japan. However, there’s no significant place for hydrogen or synthetic fuels made from it in ground transportation. Electrification is simply too easy, prevalent, cheap, and effective. Hydrogen can’t compete outside of tiny niches like vintage vehicles. For short- and medium-haul aviation, and short- and medium-haul water freight shipping, the clear path is battery electric as well.

That only leaves long-haul shipping and long-haul aviation as areas where hydrogen might have a play. Mark Z. Jacobson and I discussed this on CleanTech Talk a year and a half ago. His perspective was that in order to get to a zero-carbon world, hydrogen would have to be used for long-haul shipping and aviation.

His perspective on shipping was that we needed to eliminate black carbon, with its 100-year global warming potential of 1,055–2,240. Subsequently, I spent a couple of hours talking with Hadi Akbari, a PhD of mechanical engineering who has spent the last several years of his fascinating career spanning two continents building scrubbers for heavy marine vessels. Just as particulates are scrubbed from coal plant emissions, they can be scrubbed from marine emissions, and so biofuels with their lower black carbon emissions will be fit for purpose in my opinion. (Note: this is my opinion after talking with Hadi and researching further, not Hadi’s expressed opinion.) Biofuels use nature to do most of the heavy lifting and have advanced substantially over the past decade. There is no value in using them in ground transportation, they no longer consume food sources and there is little real concern about them competing with agriculture, although there is a lot of expressed concern nonetheless.

On aviation, Jacobson rightly points out that we have to solve emissions, but it’s a hard problem, with CO2 emissions, nitrous oxide emissions (anything burned in our atmosphere combines the nitrogen and oxygen into nitrous oxides), and the water vapor which creates contrails. In discussion with Paul Martin, it’s clear that both hydrogen storage and fuel cells would have to be in the fuselage, leaving a lot less room for passengers and luggage or making the fuselage bigger with attendant efficiency losses, and creating a heavy burden of excess heat from the fuel cells that makes them deeply unlikely. In his perspective, hydrogen would be burned directly in jet engines in this model, and that wouldn’t eliminate nitrous oxides or water vapor hence contrails.

Once again, low-carbon biofuels are likely to be the solution here. Certified versions have existed since 2011, after all, while there are exactly zero certified hydrogen drive train planes in the world. And contrails require fairly minimal operational changes, as a regular CleanTechnica reader who holds my feet the fire pointed out (and thank you for doing so, Hazel). Those operational changes still have to be mandated for the airlines, but it’s not as significant a problem as I had originally assumed.

Biofuels are enhanced with some hydrogen in some cases, and there are always going to be edge cases where hydrogen persists, but my projection for all modes of transportation including biofuel use is still only an increase from effectively 0 tons today to a million tons a year by 2100.

Long-term storage — 0 rising to 1 (one) million tons

Hydrogen is also projected as a solution for the dunkelflaute, long dreary periods when there is little wind or sunshine. However, it only makes into the also-ran categories of my projections for grid storage, not into the three major technologies.

Projection of grid storage capacity through 2060 by major categories by author

Even there, it’s not going to be a big player in the also ran category, fighting for scraps with all the other contenders a long way back in the pack. Some of the reasons are the same as always. It’s ineffective, it’s inefficient and it will be vastly more expensive. But more than that, the need just isn’t there unless you assume a whole bunch of other solutions aren’t already occurring.

High-voltage direct current (HVDC) transmission has been around since the 1950s, but in 2012 they finally solved a major technical inhibitor to its wide scale use. Despite the presence of multiple grids on continents already sharing electricity with HVDC asynchronous connections between high-voltage alternative current (HVAC) synchronized grids, despite massive HVDC construction projects under way, planned and proposed, despite electricity already being transmitted long-distances today with much more lossy HVAC, many people seem to think that electricity won’t be transmitted from renewables between opposing ends of continents and even across continents.

Electricity already flows from Africa to Europe across the Bosphorus Strait. Expanding that with big HVDC pipes from solar installations and wind farms in northern Africa is trivial, just as getting more HVDC pipes to ease the logjam from North Sea offshore wind into the population centers of Europe is straightforward and being constructed.

Renewables are cheap to build, and just as with every other form of electrical generation except nuclear, will be overbuilt and run under capacity part of the year.

Demand management strategies vs V2g projection

Demand management strategies vs V2g projection by author

And the emergence of massive electrification increases the ability to do demand management at much larger scales.

The assumption of the need for long-term storage assumes narrow geographical boundaries, an archaic concept of energy independence in a world of global trade, and actively hostile neighbors. Liebreich and I have started this conversation online, with his opening salvo being a question of whether Japan would ever accept the proposed HVDC links with China, to which I respond now that China is already 20% of Japan’s annual trade, so why is electricity different?

Germany will likely be the one outlier in this space. They have underground salt deposits that they can turn into caverns, they have a weird love affair with hydrogen too, and dunkelflaute being a German word isn’t a coincidence. If anybody builds significant hydrogen storage, it will probably be them.

As a result, my projection for global demand for hydrogen for electricity storage rises from effectively zero tons today to a million tons in 2100. Someone will waste the money, but very few.

Heating — 0 tons rising to … 0 (zero) tons

And finally, heating, the beloved hope of natural gas utilities globally, all of whom are lobbying hard to convince governments to let them ship hydrogen into homes and buildings to replace natural gas, and to allow them to inject tiny amounts of hydrogen into existing natural gas lines to produce close to zero emissions reductions.

There are no certified hydrogen home furnaces or stoves today. The existing natural gas distribution network would have to be completely replaced to handle hydrogen. Current challenges with leaking natural gas would be multiplied vastly by leaking hydrogen due to the tiny size of the molecule. SGN in Scotland is trying to retrofit 300 homes in Fife with hydrogen appliances for free, one of the many efforts going on around the world by utilities whose life is rapidly ending.

No, what will happen is that all of that natural gas distribution infrastructure will be shoved into electrical minimills to create steel for useful things, and the world will convert to heat pumps and induction stoves.

My projection for global demand for hydrogen for heating is effectively zero tons today, and remaining at so far under a million tons through 2100 that it rounds down to zero.


And so, that’s the projection. It’s flawed, of course, but not fatally in my opinion. It’s my first iteration of the projection, and it’s withstood me writing 4,000 words over three articles explaining it, so there’s that. But as with my projections on grid storage and vehicle-to-grid, I offer it to create a useful discussion about what the world will become, and welcome challenges to it.

Hydrogen demand today is two-thirds for petroleum refining and fertilizer manufacturing. Both of those uses are going to drop precipitously in the coming decades. The one growth area, steel, will not replace them, in my opinion. Green hydrogen only has to replace the useful two-thirds of hydrogen demand seen today, and grow to 75% of 2021 demand by 2100 to fulfill all needs.

 

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Honda now has an electric Ruckus. Will they bring it to the US?

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Honda now has an electric Ruckus. Will they bring it to the US?

The Honda Ruckus has earned cult status thanks to its minimalist styling, exposed frame, and seemingly endless customizability. The scooter, also known in international markets as the Honda Zoomer, has spent years being seen as a blank canvas for scooter tuners, urban commuters, and anyone who just wanted something simple, small, and kind of weird to zip around town. A few years ago, Honda finally answered the call for an updated version by announcing and producing the “Zoomer e:”, which was an electric version of the Honda Ruckus. So where is it?

When Honda launched the all-electric version of the Ruckus, the Zoomer e:, back in 2023, many fans hoped it was only a matter of time before we saw it quietly glide onto U.S. streets.

But two years later, there’s still no sign of a stateside release, and no indication that Honda plans to change that anytime soon.

The Zoomer e: was first introduced in China in early 2023 alongside two other retro-inspired electrics: the Cub e: and Dax e:.

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The Zoomer e: keeps the stripped-down, industrial look of the classic gas-powered Ruckus, but swaps the 49cc engine for a 400W rear hub motor and a 48V 24Ah battery (around 1.15 kWh).

It was originally given a top speed of a mere 25 km/h (15.5 mph) to keep it street legal as an electric bicycle in its first market of China, where it also came with functional but stubby pedals so riders could pretend it was actually pedalable.

The first version of the electric scooter claimed a range of up to 80–90 km (50–56 miles) from its removable lithium-ion battery, depending on conditions.

An advertisement for a Honda Zoomer e: in the Philippines via Facebook

We’ve since seen the performance bumped up to 40 km/h (25 mph) top speeds when the scooter was introduced into the Philippines market, where the local L1B classification allowed for higher speeds. It’s fairly obvious that the performance can be software-tweaked by Honda depending on the market, though likely to a limit. To achieve speeds much higher than 25 mph, a motor and controller swap may be required, though neither would be complicated.

In other words, the electric Ruckus’ debut revealed an ultra-lightweight, street-legal runabout designed for countries with expansive low-speed e-bike laws. But in the U.S., these types of quasi-e-bikes that are actually scooters are few and far between. The same performance can be had from a $1,000 electric bicycle, and in fact, Class 3 e-bikes in the US can go nearly twice as fast as the original electric Ruckus.

So Honda obviously hasn’t been in a rush to bring its low-spec version of the bike to the US market, where it would be a slower and heavier competitor to the wide range of cheap imported electric bicycles. However, its iconic design and cultural legacy have kept enthusiasm up for riders who have managed to privately import their own models. One Redditor appears to have imported two Honda Zoomer e: models in parts to assemble in the US, while someone else posted a YouTube video of his completely assembled Honda Dax e: model that was launched along the Zoomer e:.

Despite clear consumer interest and a growing market for low-speed electric vehicles, as well as Honda’s own proven interest in growing its electric scooter market, the company hasn’t made any moves to release the Zoomer e: in the US. That’s not surprising since America still lacks a robust electric scooter culture (or even a gasoline scooter culture, for that matter), and anything motorcycle-shaped that doesn’t hit 30+ mph tends to get passed over by mainstream buyers.

But perhaps that could change one day. Technically, bringing the Zoomer e: to the US wouldn’t be a monumental task for Honda. The U.S. is a self-certify country, meaning Honda could design a version that meets federal vehicle safety standards, beef up the motor and controller for higher speeds, and sell it as either a Class 2/3 e-bike, or perhaps more appropriately, as a low-speed motorcycle with a top speed in the 35-45 mph range (55-70 km/h).

With the rise of micromobility, electrification, and growing frustration with car-centric cities, now might actually be the perfect time for a reborn electric Ruckus to hit US roads. But until Honda decides to take that step, American riders will have to keep dreaming – or start importing.

A private import of a Honda Zoomer e: to the US

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BMW ups the ante with the fastest, most powerful electric maxi-scooter

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BMW ups the ante with the fastest, most powerful electric maxi-scooter

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.

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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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I found this cheap Chinese e-cargo trike that hauls more than your car!

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I found this cheap Chinese e-cargo trike that hauls more than your car!

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.

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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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