Brucey
Solar Wizard
The Tesla Victoria Big Battery had a fire during commissioning of the battery, here's what the investigation found:
Basically the unit that initially caught on fire was in a key lock off state as it wasn't part of the equipment being tested. This disabled a bunch of the protection controls that normally operate. Also there was a 24 hour delay prior to the SCADA network being connected to Tesla monitoring. So a coolant leak escalated internally arcing and a fire. The second mega pack which was sitting back to back at 6" spacing (per UL9540A unit testing) ended up catching on fire due to fire infiltration from the plastic battery vents on the enclosure roof. Winds were 30mph versus UL testing of 10mph. Impressively the fire was contained to the two mega packs without further spread.
Just an interesting example of how things can go wrong with the big boy units
Basically the unit that initially caught on fire was in a key lock off state as it wasn't part of the equipment being tested. This disabled a bunch of the protection controls that normally operate. Also there was a 24 hour delay prior to the SCADA network being connected to Tesla monitoring. So a coolant leak escalated internally arcing and a fire. The second mega pack which was sitting back to back at 6" spacing (per UL9540A unit testing) ended up catching on fire due to fire infiltration from the plastic battery vents on the enclosure roof. Winds were 30mph versus UL testing of 10mph. Impressively the fire was contained to the two mega packs without further spread.
Just an interesting example of how things can go wrong with the big boy units
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