The Megapack off-gas hazard is toxicity, not explosion
Photo: Z22, CC BY-SA 4.0, via Wikimedia Commons
Tesla's sparker system (adapted spark plugs) ignites flammable gas early, like lighting a gas stove, so off-gases never reach explosive concentration. The unquantified gap is BI coverage that still assumes suppression, plus toxic exposure to first responders. | Source: same Houston training, Apr 2026; IR images from a Tesla-sanctioned event.