As for how to perform the exorcism, standard procedure is to make an unbroken ring of salt round the entire exterior of the building, and burn white sage in each room, whilst commanding the demon to leave, burning the resin of asafoetida also is good for driving away evil, followed by in this case, the burning of the heart and liver of a fish, and while standing in a pentagram marked out in salt, pronounce a banishment ritual to get rid of the demon for good.
The heart and liver thing isn't the norm, but is specific to the hellspawn in question, the aforementioned we think to be an underling of a rage and lust demon by the name of Asmodae, also known as Asmodeus or ashmedai, I must find my copy of Waite's book the occult sciences and look up said evil one further.
High voltage, now there is an interesting idea, as apparently many supposed hauntings/manifestations etc. are accompanied by some quite intense EM fields.