While searching for a low-power electric kettle, I found one that only consumes 500W. When measured with a power meter, it showed about 498W on the second setting and around 250W on the first setting. It says it can hold up to 1.2 liters, but when you put in 1 liter, it almost fills up and takes 12 minutes to boil. It seems like adding less water will shorten the time. Boiling two noodles seems like it would overflow and be difficult, but about one and a half seems okay.