
A 5 kW peak stovetop is already more power than anyone can reasonably use with the amount of space available on a standard stove. Literally the only useful thing you can do at full power is bring water to a boil, because no actual cooking can happen at full power unless your diet is carbonized food. I have a 3.5 kW stovetop and it’s perfectly adequate.
After the first 15-20 minutes of cooking (bringing water to a boil while preparing some onions/garlic/sauce/seasonings) it gets very hard to keep using 1 kW. By that point you’ll be leaving things on medium heat at most. I can’t think of a single home-cooked meal that would require continuously drawing a full 2 kW from the stove for multiple hours, that’s a truly crazy amount of energy. Even an oven at full blast won’t use anywhere near 2 kW once it has reached 250 °C.










Wanna make a bet that I can boil some water and safely touch (for a short time) the stove top right after? I’m willing to bet a lot of money. 'cause I’ve done it. And because of physics.
The pot is 100 °C (because of physics), which is heating the glass. Glass is not as conductive as metal, so it’s not as dangerous to touch. Touching a pot of boiling water is not pleasant, but not very dangerous if you immediately remove your hand, and touching the stove is even less dangerous than that. Completely different ball game to vitroceramic resistive heating which heats the stove itself well above boiling temperatures.