Jords dude... to get into the electrical field you need to do an apprenticeship. There is no way around it. To increase your chances of an electrical apprenticeship do a pre-apprenticeship at TAFE. But as mentioned already its run on a calander year. Although... you may be able to get in for semester two? Then pick up the first semester next year? Im not sure, you will have to contact the campus.
All this chit chat and talk about what you want to do is just getting you nowhere Jords.
Contact EGT as Grumps has said a number of times. I did my last 1 1/2 years of my apprenticeship with them and they sent me to the gas plant on the north west shelf because I expressed interest in getting industrial experience. I am 30 and have only been out of my time for 3 years and wish wish wish I did it at your age.
You know what you want to do so go and do it! Continue to go to school and look for an appenticeship. Then when you get one, leave school. Dont just drop out of school with nothing to go to as this will make you lazy and you will get bored and probably end up pushing trollys at your local supermarket. You are just waisting every day you put it off. The sooner you get it done the sooner you will be making big dollars. By the time you are 21 you could be working in Kununarra on $166,000.
God speed brother
