On the other hand, electricity can create almost "infinite temperature" with relative ease. Temperature is, roughly speaking, the average kinetic energy of a ma

On the other hand, electricity can create almost "infinite temperature" with relative ease. Temperature is, roughly speaking, the average kinetic energy of a material's molecules, and you can accelerate particles to extremely kigh kinetic energy with electromagnetic fields. So if you need that kind of "temperature", electricity is very suitable, even though it's expensive per unit of energy. Another example for how electricity is a very valuable type of energy.