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Firefighters bring large battery fire near Geelong under control

news.cfa.vic.gov.au

21–30 of 66 posts

Re: Firefighters bring large battery fire near Geelong under control

#21

Another link to a story about the Megapack fire, with photos: https://www.theverge.com/2021/7/30/22602411/neoen-tesla-mega...

It's interesting how closely placed the two center rows are. That seems to invite a spread of the fire. The land looks pretty remote/rural, so I can't imagine space is a constraint. I wonder if there's a technical reason for them to be so close together.

Re: Firefighters bring large battery fire near Geelong under control

#22

Not a car battery. > a 13-tonne lithium battery inside a shipping container The other ~99 container battery packs survived.

The fire spread to a second pack. You can see in the images that they are laid out in pairs. So two out of 80 burned completely, and we don't know what damage was caused to the others. One at least looks pretty singed.

Re: Firefighters bring large battery fire near Geelong under control

#23

>> inside a shipping container These things don't look like shipping containers. They appear to be the same size/shape and have the proper attachment points to be handled as shipping containers, but are they actual containers? Even Tesla wouldn't go so far as to mount batteries inside standard shipping containers. They might make ok housing but with all the thermal/electrical issues a bespoke design would be appropri…

Who claimed that these were shipping containers? It comforms to the applicable ISO standards, it is transported like a shipping container. It is a shipping container

Re: Firefighters bring large battery fire near Geelong under control

#24
post #15
post #10

Whats stopping them from erecting a barrier around the battery in question and just burying it in sand?

Wouldnt it just burn for years then?

This battery chemistry is self-oxidizing. It doesn't need contact with the air to burn.

Re: Firefighters bring large battery fire near Geelong under control

#25

Wow something from Melbourne comes to the first rank in HN! actually I still can't find any explanation why the fire starts at all. Or maybe they haven't found out yet Edit: I don't get the downvotes, I am from Melbie, nothing is controversial here

It happens, unless there's something surprising/unusual to be found that caused it like remnants of oily rag, or empty bottle marked 'molotov cocktail', I assume more time & energy will be spent on 'are the existing racks/containers/etc. enough to contain and isolate fires' (or no they're not, why, we thought they were).

If a phone battery say catches fire it's generally not such a big deal - it's not surrounded by a million other phone batteries, and won't take four days to burn out.

Re: Firefighters bring large battery fire near Geelong under control

#26
post #9

According to recent reports[1], Tesla is transitioning to using Iron Phosphate (LFP) Li-ion cells in it's Megapack stationary storage products. Unlike nickel-based cells, LFP is highly resistant to fire and thermal runaway. Presumably, this particular installation was still using nickel-based cells. [1] https://cleantechnica.com/2021/05/11/tesla-transitions-to-lf...

Who's paying for the transition? The customer or Tesla? Funny this got downvoted. Was this comment controversial in any way?

I don't mind your question, but I find the answer is undefined.

It's not as if someone somewhere sits down and makes this choice. Tesla charges prices the market wants to pay, at volumes Tesla can manufacture, and tries to minimize its expenses. What happens in the end in terms of profit and loss is subject to literally thousands of variables, not just a change in a battery pack tech.

This is especially the case for an industry that's heavily into R&D and innovation.

Re: Firefighters bring large battery fire near Geelong under control

#27
post #20

Earlier quoted context omitted.

Oh, so only the 1 would be likely to start a massive bushfire if this happened in summer? That makes me feel better.

Any more likely than a gas/diesel fire? I'd imagine most of the fire risk is at the start, when first responders haven't arrived yet. Once they arrive any wildfire risk is minimal because it can be immediately put out. In that respect there probably isn't a big difference between a gas fire that burns for 1hr and a battery fire that burns for 4 days.

As per article, the CFA wasn't able to put it out, and had to just let it burn. If this was in summer then that would be taking resources away from quickly responding to the hundreds of other callouts they get - I'm not super happy with the idea of volunteers spending their time to babysit a chemical fire from equipment that clearly hasn't been designed for local conditions.

You're right most of the risk is at the start - my anger is directed at a big U.S. tech company landing Victorian firefighters with a babysitting job.

Re: Firefighters bring large battery fire near Geelong under control

#28

Wow something from Melbourne comes to the first rank in HN! actually I still can't find any explanation why the fire starts at all. Or maybe they haven't found out yet Edit: I don't get the downvotes, I am from Melbie, nothing is controversial here

Fire root cause analysis is tricky. There is a high probability that no precise root cause will ever be identified.

Re: Firefighters bring large battery fire near Geelong under control

#29
post #15
post #10

Whats stopping them from erecting a barrier around the battery in question and just burying it in sand?

Wouldnt it just burn for years then?

If that was the case we would just set fire to them and extract energy from the heat produced.

Re: Firefighters bring large battery fire near Geelong under control

#30
post #9

According to recent reports[1], Tesla is transitioning to using Iron Phosphate (LFP) Li-ion cells in it's Megapack stationary storage products. Unlike nickel-based cells, LFP is highly resistant to fire and thermal runaway. Presumably, this particular installation was still using nickel-based cells. [1] https://cleantechnica.com/2021/05/11/tesla-transitions-to-lf...

Who's paying for the transition? The customer or Tesla? Funny this got downvoted. Was this comment controversial in any way?

You get downvoted because the question is redundant. It's like asking who is paying for the next gen iPhone or whatever. You buy the product as is and when a new better generation of the same product comes out you don't get a free upgrade because you bought the old version.
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