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EEVblog 1441 - Electric Buses are NOT a SCAM (Adam Something)

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EEVblog:

--- Quote from: james_s on December 24, 2021, 01:25:29 am ---
--- Quote from: EEVblog on December 23, 2021, 11:40:18 pm ---With electric busses though you can always invest in the solar charging infrastructure yourself to offset the ongoing cost. Bus depots usually have no shortage of surface area to put panels.

--- End quote ---

Not to mention buses themselves have large, flat roofs and being utilitarian vehicles they are not nearly as bound by the whims of consumer fashion and styling. They are one of the few vehicles where it might actually make sense to put solar panels on top of them, if only to make up for the draw from the HVAC and auxiliary stuff.

--- End quote ---

IIRC the figure just for running the HVAC system was the equivalent capacity of my entire IONIQ car (37kWh), or roughly 1/10th of the busses consumption.

nctnico:

--- Quote from: EEVblog on December 24, 2021, 01:38:01 am ---
--- Quote from: james_s on December 24, 2021, 01:25:29 am ---
--- Quote from: EEVblog on December 23, 2021, 11:40:18 pm ---With electric busses though you can always invest in the solar charging infrastructure yourself to offset the ongoing cost. Bus depots usually have no shortage of surface area to put panels.

--- End quote ---

Not to mention buses themselves have large, flat roofs and being utilitarian vehicles they are not nearly as bound by the whims of consumer fashion and styling. They are one of the few vehicles where it might actually make sense to put solar panels on top of them, if only to make up for the draw from the HVAC and auxiliary stuff.

--- End quote ---

IIRC the figure just for running the HVAC system was the equivalent capacity of my entire IONIQ car (37kWh), or roughly 1/10th of the busses consumption.

--- End quote ---
Could be. BTW somewhere in the NL they have electric busses but the heating runs on -drum roll- diesel. And the heating consumes quite a lot of it  :scared: Who comes up with that?

SpookyGhost:
Something I have not seen mentioned yet (Correct me if I'm wrong) is that you could use these buses for emergency power if the infrastructure was setup right. Does it sound like a viable option?

Houston Metro has 1,236 buses, and lets assume 250kwh per bus. That's 309mwh

For a freeze situation like we had last year, or a hurricane, that power would be fantastic to have (And buses don't run in hurricanes anyway!)



nctnico:

--- Quote from: SpookyGhost on January 18, 2022, 07:49:34 pm ---Something I have not seen mentioned yet (Correct me if I'm wrong) is that you could use these buses for emergency power if the infrastructure was setup right. Does it sound like a viable option?

--- End quote ---
No. Calculate the amount of power a city needs. Think how to move a bus through water, a blocked road or snow. Also think why the power is out: broken infrastructure so there is nothing to power. Important infrastructure is equiped with generators so you don't need backup busses for that.

EEVblog:

--- Quote from: SpookyGhost on January 18, 2022, 07:49:34 pm ---Something I have not seen mentioned yet (Correct me if I'm wrong) is that you could use these buses for emergency power if the infrastructure was setup right. Does it sound like a viable option?
Houston Metro has 1,236 buses, and lets assume 250kwh per bus. That's 309mwh
For a freeze situation like we had last year, or a hurricane, that power would be fantastic to have (And buses don't run in hurricanes anyway!)

--- End quote ---

Possible, but you'd likely want the buses still operational during a blackout.
Bus depots, being a fairly essential public transport utility should actually be autonoymous in terms of backup and charging. So even if you had an extended multi-day blackout you could still charge the buses atthe depot during the day and operate them.

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