Oh, and personally, if I were *expecting* to use this at least once every 2 years (I've only had ONE power outage of about 45 mins in the past 10 years - I don't live in "storm country") then I would probably have a hefty 12V lead-acid (pickup truck) battery in the garage with the capability/hardware to hook it up in parallel to the Bolt's wimpy 12V acc battery, and hang the inverter off of the "garage battery". Yes, the power is supplied by the DC-to-DC converter from the main propulsion battery, however the 12V battery is the "buffer" for short over-draws of power as well as being, well - the buffer. So having another one to double or triple the capacity and safeguard the car's electric battery would be something anal-retentive, overly cautious me might do. If it were something "OK, just in case - I don't think I'll every use this", then I wouldn't. And if power outages happen a lot, then a 3500W portable generator would probably be a better choice (unless you had to stay quiet because the gas generator would attract the zombies to your house and eat your brains).
If you decide to invest such that your Bolt can be used as an emergency power source, PLEASE do several closely-supervised dry runs with regular (?10 minute?) checks to make sure that the car doesn't turn itself off and completely drain (destroy) the 12V battery(ies). Write the instructions (your checklist) for setting up the Bolt to be a long-term energy source for easy, no-forget reference (just like pilots do).
And there is a "trick" to keeping your Bolt turned on long term (so that it won't auto-shut-off after X minutes) - which is required to run the inverter and your appliances all the time without quickly draining the 12V battery. I am not going to search for the exact steps, but I have read them. One method involved exiting the vehicle through the passenger door instead of the driver's door.
Lastly, hooking an inverter up to the 12V battery so that the Bolt can be a 120V power source isn't just useful for home power outage emergencies. If you go car-camping, you can power a lot of portable appliances - like LED lights or a small TV or just portable device (radio, laptop) chargers - from the inverter.