[HN Gopher] Tesla Megapack battery ignites at substation after l...
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       Tesla Megapack battery ignites at substation after less than 6
       months
        
       Author : mikece
       Score  : 38 points
       Date   : 2022-09-21 17:05 UTC (5 hours ago)
        
 (HTM) web link (www.theregister.com)
 (TXT) w3m dump (www.theregister.com)
        
       | v8xi wrote:
       | link to an earlier thread:
       | https://news.ycombinator.com/item?id=32926557
        
       | bmcahren wrote:
       | AfTeR lEsS ThAN 6 MonThS! Where will we be in 10 years? Instead
       | of run-away ramps, we'll have to have a network of burn-boxes on
       | the side of every road for self-driving Teslas to drive into and
       | burn out. Who's going to pay for all that? I'll keep my kerosene
       | lamps and leaded gas thank you very much. /s
        
       | randyrand wrote:
       | I imagine they must design these things so that when a tiny spark
       | ignites, you don't lose your whole investment. With internal fire
       | breaks.
       | 
       | right?
        
         | brianwawok wrote:
         | Right. The facility is like 300 "containers". This is 1
         | container, which burned, but did not spread. This is why they
         | are spaced out on a concrete pad, vs smooshed together in a
         | row.
         | 
         | So other than the service disruption, it's not like the whole
         | thing burned down.
        
       | [deleted]
        
       | norwalkbear wrote:
       | So does this mean electric car fires are way way more difficult
       | to put out than regular gas fires?
        
         | brianwawok wrote:
         | Yes, there are many many car articles about it.
         | 
         | A car fire is out in 30-60 minutes, a EV fire could take a day
         | to burn out.
        
         | foxyv wrote:
         | Fire departments have had to buy special equipment to put them
         | out. One of them is pretty much an underbody nozzle similar to
         | those pressure washer attachments used to clean under your car.
         | 
         | Since car batteries contain both the oxidizer and reducer, they
         | are self sustaining. This makes smothering the fire impossible.
         | The only way to slow or stop them is to prevent thermal runaway
         | in uncompromised cells with a ton of water.
        
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       (page generated 2022-09-21 23:02 UTC)