 |
Horses for Courses
Author: Commenter
Date: 10-15-2023 - 14:18
All of the modes under discussion here have their place.
Looking at the specs of the FLIRT Akku, specifically with respect to SMART, one can see that having a thousand feet of catenary at each end of the route would allow recharging in ten minutes. Looking at the schedule, the turn around time is equal to or greater than this. The present route is less than 2/3 of the FLIRT Akku range, which is why the charge time is only ten minutes.
If one has excess off peak electricity production that would just go to waste otherwise, then the production of hydrogen by electrolysis is a fit. The fact that storing energy via electrolysis of water and compression of the resulting hydrogen is not as efficient as battery storage or direct use then becomes irrelevant. Present technology also gives the advantage of range to hydrogen over battery energy storage.
If you want speed over 130 mph or have a very busy route you are going to use catenary. Just for reference, the diesel speed record is 148 mph.
Looking at the specs of the FLIRT Akku, specifically with respect to SMART, one can see that having a thousand feet of catenary at each end of the route would allow recharging in ten minutes. Looking at the schedule, the turn around time is equal to or greater than this. The present route is less than 2/3 of the FLIRT Akku range, which is why the charge time is only ten minutes.
If one has excess off peak electricity production that would just go to waste otherwise, then the production of hydrogen by electrolysis is a fit. The fact that storing energy via electrolysis of water and compression of the resulting hydrogen is not as efficient as battery storage or direct use then becomes irrelevant. Present technology also gives the advantage of range to hydrogen over battery energy storage.
If you want speed over 130 mph or have a very busy route you are going to use catenary. Just for reference, the diesel speed record is 148 mph.
| Subject | Written By | Date/Time (PST) |
|---|---|---|
 Electrify SMART, Well Sort of
|
Commenter | 10-14-2023 - 11:18 |
|
Re: Electrify SMART, Well Sort of
|
david vartanoff | 10-14-2023 - 12:00 |
|
Re: Electrify SMART, Well Sort of
|
Commenter | 10-14-2023 - 12:48 |
|
Re: Electrify SMART, Well Sort of
|
FUD | 10-14-2023 - 14:06 |
|
Re: Electrify SMART? And the usual line of nonsense about H2 from the we like expensive wires lobby...?
|
BOB2 | 10-14-2023 - 14:48 |
|
Re: Electrify SMART? And the usual line of nonsense about H2 from the we like expensive wires lobby...?
|
FUD | 10-15-2023 - 09:53 |
|
Horses for Courses |
Commenter | 10-15-2023 - 14:18 |
|
Re: Horses for Courses - diesel speed record is 159 mph not 148
|
Community Notes | 10-16-2023 - 13:04 |
|
Or perhaps diesel speed record is 168 mph not 148
|
Commenter | 10-19-2023 - 12:46 |