You should start looking here:http://www.immi.gov.au/
This site is commercial but seems easier to navigate than the official government site:http://www.nationalvisas.com.au/
Electricians are in demand and are on the Skilled Occupation List (SOL) http://www.nationalvisas.com.au/skilled/eligibleskilledoccupations.htm
You also speak English and are young so that will count a lot with the eligibility points system.
Australian immigration visas are generally expensive so if you do some homework you will save by applying directly.