Refrigeration

In a gas, the molecules are moving in a random, so called Brownian motion. This movement implies a kinetic energy and we commonly refer to that as temperature. If there was a way to align this motion such that all molecules would be moving in the same direction, the total kinetic energy would not change, but this temperature would be converted into translatory motion.
In other words, the temperature would drop to zero, and the kinetic energy would be converted into "flow energy".

The ideal gas law says:
Pressure x Volume = Boltzmann constant x number of molecules x Temperature
which implies the same: If the pressure is reduced - quicker than the gas will expand - the temperature will decrease.

This is what most cooling devices use. For example in an airco the working gas is compressed outside your house, which brings out the internal heat. This compressed gas is then cooled again to the outside temperature, and transferred to the indoor part of the airco. There it is forced through an expansion nozzle which reduces the pressure and "aligns" the motion of the gas molecules. This reduces the temperature and this cold gas is then used to cool an airflow.

Now that we have established that electricity is a gas, we could do the very same thing using electricity as working gas.
With the help of a Tesla coil we can increase the pressure and in a discharge we can release this pressure and align the motion of the constituting particles. This last step will actually work better with electricity as working medium because the movement of electrified particles will cause a magnetic field that will "pinch" the discharge into a thin channel.
The fast flowing particles will collide with air molecules and thus heat up and ionize the air. But the electricity itself will be cooled, and since the outside pressure is reduced it will attract more charges from the environment.