> Xie estimates that he pays around $500 to $700 a month on gas, and about $1,200 on electricity.
Since gas stoves are so inefficient, natural gas should provide no cost benefit. It's likely that much of that electricity use from higher AC and refrigerator compressors demand due to gas stoves heating up the interior space (commercial kitchens can get very hot).
It's interesting that Korean BBQ is mentioned since I already see many places using induction stoves for obvious safety reasons; customers are cooking their own food. Hot pot and Hibachi places also seem to either be using electric as well. IME doing KBBQ at home with a portable induction stove and it works very well.
I think overall its ideal for even commercial kitchens to move to electric, it would greatly improve indoor air quality and likely make the kitchen environment more comfortable due to less waste heat. That said there are some cases where having an actual flame is important so it would be nice to see some solution for those dishes - perhaps larger portable propane tanks?