Re:Tesla’s former CTO is building a giant lithium-ion batter...
by Robotbeat on Sunday August 30, 2020 @10:14AM
(#24323147)
BEVs are also now available at over 360-400 mile range.
And the 2021 model year Lucid Air has an estimated EPA range of over 500 miles.
So I disagree. Electric infrastructure is FAR more plentiful, and fundamentally so because we already have an electric grid but not a hydrogen grid. On-site production of hydrogen is very expensive and less efficient than centralized production, but central production has significant distribution costs. To get the 5 minute refuel time requires cryogenic cooling of hydrogen, which itself requires energy (continuously to keep it cool and ready). The 5 minute charge time is a best case, too, because it typically takes time to cool the hydrogen. So the first user may experience 5 minute refueling, but the next user has 15-20 minute refuel time. And because the refueling stations are so expensive and because workplace and home and destination refueling are not feasible, there end up being lines for the rare refueling stations, so practical refueling times can be (and often are) much higher. Not only that, but many hydrogen refueling stations only refuel up to half capacity, 5000psi instead of 10,000psi.
Another issue is that typically, hydrogen is delivered and not produced on-site. There is a limited amount of hydrogen available at any one time, therefore, and hydrogen fuel stations can and do run out. (I checked, and typical hydrogen fueling stations in California have around 50-200kg of hydrogen available at any one time, and each kg gets about 62 miles in the Mirai, so maybe equivalent to 70-300 gallons of gasoline... compared to about 10,000-30,000 gallons of capacity at a typical gas station, two orders of magnitude greater capacity and able to be refueled by one or two trucks which can also carry over an order of magnitude more gasoline than the gasoline-equivalent hydrogen in a hydrogen delivery truck.)
Even without home charging, it’s much more practical to have an electric vehicle than a hydrogen one because of the fundamentally cheaper electric charging infrastructure. For instance, you can charge your electric car in more places than just California!
Hydrogen is marketed as if it solves range anxiety when in reality it's far, far worse and electric cars are now accomplishing ranges equivalent to gas cars and so therefore can be recharged in a similar manner as to a gas car even without initiatives to make home, work, and destination charging more ubiquitous than it already is.
So I disagree. Electric infrastructure is FAR more plentiful, and fundamentally so because we already have an electric grid but not a hydrogen grid. On-site production of hydrogen is very expensive and less efficient than centralized production, but central production has significant distribution costs. To get the 5 minute refuel time requires cryogenic cooling of hydrogen, which itself requires energy (continuously to keep it cool and ready). The 5 minute charge time is a best case, too, because it typically takes time to cool the hydrogen. So the first user may experience 5 minute refueling, but the next user has 15-20 minute refuel time. And because the refueling stations are so expensive and because workplace and home and destination refueling are not feasible, there end up being lines for the rare refueling stations, so practical refueling times can be (and often are) much higher. Not only that, but many hydrogen refueling stations only refuel up to half capacity, 5000psi instead of 10,000psi.
Another issue is that typically, hydrogen is delivered and not produced on-site. There is a limited amount of hydrogen available at any one time, therefore, and hydrogen fuel stations can and do run out. (I checked, and typical hydrogen fueling stations in California have around 50-200kg of hydrogen available at any one time, and each kg gets about 62 miles in the Mirai, so maybe equivalent to 70-300 gallons of gasoline... compared to about 10,000-30,000 gallons of capacity at a typical gas station, two orders of magnitude greater capacity and able to be refueled by one or two trucks which can also carry over an order of magnitude more gasoline than the gasoline-equivalent hydrogen in a hydrogen delivery truck.)
Even without home charging, it’s much more practical to have an electric vehicle than a hydrogen one because of the fundamentally cheaper electric charging infrastructure. For instance, you can charge your electric car in more places than just California!
Hydrogen is marketed as if it solves range anxiety when in reality it's far, far worse and electric cars are now accomplishing ranges equivalent to gas cars and so therefore can be recharged in a similar manner as to a gas car even without initiatives to make home, work, and destination charging more ubiquitous than it already is.