ACES Delta’s Hydrogen Electrolyzers Arrive

One kg of hydrogen contains about the same energy as a gallon of gasoline. Today a fuel-cell electric vehicle with 1 kg of hydrogen can drive approximately 60 miles, compared to conventional vehicles, which get about 25 miles on a gallon of gasoline.Feb 25, 2022

https://www.energy.gov/eere/vehicles/articles/hydrogens-role-transportation#:

The big problem with hydrogen is storage. Even liquid hydrogen has only 1/4 the energy per unit volume as gasoline, and it can't be liquified at room temperature. Volume storage is the most important factor for vehicles.

"On a mass basis, hydrogen has nearly three times the energy content of gasoline—120 MJ/kg for hydrogen versus 44 MJ/kg for gasoline. On a volume basis, however, the situation is reversed; liquid hydrogen has a density of 8 MJ/L whereas gasoline has a density of 32 MJ/L, as shown in the figure comparing energy densities of fuels based on lower heating values. Onboard hydrogen storage capacities of 5–13 kg hydrogen will be required to meet the driving range for the full range of light-duty vehicle platforms."

https://www.energy.gov/eere/fuelcells/hydrogen-storage

As can be seen from the figure, pressurized hydrogen fares poorly compared to other fuels in Energy Volumetric Density (vertical axis), and high pressure storage also adds weight to the vehicle.

Well that's true, but a fuel cell to electric is much more efficient than an ICE type drive....also I would think that most likely use of hydrogen fuel cell would be in a hybrid plug-in to increase range and adaptability...

https://www.motortrend.com/news/honda-cr-v-plug-in-fuel-cell-ev-preview/

..."The analysis suggests up to 40% less fuel energy is required from the fuel cell compared to an ICE to cover the same distance, and that a fuel cell can match the performance of a combustion engine range extender with up to twice the rated power output."... Apr 5, 2016

https://www.sae.org/publications/technical-papers/content/2016-01-1188/#:

...."Toyota thinks it has solved two of the main hurdles with mass electric vehicle adoption: battery range and charging time. Toyota’s new electric vehicle battery will offer a 745-mile range and only take 10 minutes to charge in what could be a breakthrough in electric vehicle adoption.

Toyota announced this week that it is close to manufacturing a new solid-state battery that could double the range of most electric vehicles—at 745 miles. The batteries could reach the market by 2027 or 2028, helping to catapult electric vehicles into mainstream use.

Battery range and charging time have continued to be a barrier to mass EV adoption, with consumers balking at the idea of driving a limited number of miles before spending significant time recharging.

While battery range and charge time would go a long way to easing car buyers’ reservations about electric vehicle adoption, EV makers will still have to battle another reservation that consumers have with electric vehicles—subpar charging infrastructure, which polls show has dampened enthusiasm for EVs in the United States."....

https://oilprice.com/Energy/Energy-General/Toyotas-Solid-State-Battery-Boasts-745-Miles-On-A-10-Minute-Charge.html

..."A study focused on turning waste plastics into high-value graphene just unlocked a new way of producing hydrogen that could transform the nascent industry and, on a grander scale, positively alter projected decarbonization pathways. The breakthrough could be a win-win for the environment, recycling plastic waste – of which the world has approximately 6.3 billion tons – while providing high-yield hydrogen gas which can be used as clean fuel, all while producing graphene as an end product which makes the whole process economically viable. The breakthrough is detailed in a new paper in Advanced Materials."....

..."The process involves a technique called flash joule heating, developed at Rice. “It involves grinding plastic into confetti-size pieces, mixing it with a conductive material, placing it in a tube, and then passing a very high voltage through it,” Singularity Hub recently reported. “This heats the mixture to around 5,000 degrees Fahrenheit in just 4 seconds, causing the carbon atoms in the plastic to fuse together into graphene and releasing a mix of volatile gases.” Of these gases, there was a significant amount of extremely pure hydrogen. Moreover, since all of the gases’ carbon is converted into graphene, the process does not release any carbon dioxide."...

https://oilprice.com/Energy/Energy-General/Plastic-Waste-Becomes-Clean-Hydrogen-Goldmine.html

"When used as part of a fuel cell, 1 kg of hydrogen can produce 33 kWh of electrical energy."

"Most EVs will cover between three and four miles per kWh"

One GWh = one million KWh

American drivers cover 3.2 trillion miles each year,...or 8,767,123,287 miles a day or 2,922,374,429 KWh for fuel cell vehicles all....or around 3000 GWh per day...or 88,556,800 kg of hydrogen...or about 90,000 tonnes = 900 plants this size

It didn't say how much charge the 10 minute charge would be. 10%? 20%? To fully charge the battery in 10 minutes would take a high voltage or a big connector and wire (probably a bus bar).

I think we can assume about 212 Kwh battery capacity for this vehicle...that would require 1200 kw charger or 1.2 MW..these already exist for trucks....

"A new MegaWatt Charging System (MCS) is set to be available in the UK from Q1 2024. This kind of infrastructure will be pivotal to the adoption of EVs, especially electric HGVs(heavy goods vehicle)...

The Kempower MCS, which will be ready to be installed by Vital EV Solutions from early next year, is estimated to allow the average electric HGV to travel up to 372 miles on a single 30-minute charge.

This new solution will follow Vital EV’s installation of what it claims to be “the UK’s fastest EV chargers” in Bedfordshire and “the UK’s largest electric truck charging depot in London”. While the chargers in Bedfordshire support 400kW charging, the new Kempower MCS will provide “up to 1.2 MW (1,200kW) of ultra-rapid DC charging”."...

https://www.logisticsmanager.com/new-megawatt-charging-system-to-support-hgv-electrification-from-2024/

https://ev-database.org/cheatsheet/useable-battery-capacity-electric-car

30 minutes is a long way from 10 minutes when you are waiting to fillup. And the 5 minute fillup for the hydrogen fuel cell will beat all.

The 30 minute charge is referring to the large semi trucks, which could have a battery capacity in excess of 800 kwh...