There are a litany of products on the market which offer protection against the power grid. Shopping for them is a mess, with numerous offerings that all seem to overlap in one way or another. Product titles include: Hardwire Surge Suppression, Voltage Regulators, Active Power Conditioners, and Passive Power Conditioners, and probably more that I'm not aware of. Researching them is a nightmare. Like a surge protector or Uninterruptible Power Supply (UPS), these products are designed to protect your electrical equipment. Unlike surge protectors and UPSes, these products don't go inside your home. They stay outside, to protect you from the power company. Does Powerwall have any such protections built-in? It seems like a major oversight if it doesn't, since the power company at any time could convert your $5k Powerwall into a brick -- or worse, a flaming brick.