What is the earning potential of Australian electrical businesses?

I am currently getting paid 150k a year working as a commercial electrician,

I am wondering if it would be worth my time to go out full time on my own and what the earning potential would be?

My partner is an entrepreneur & experienced in scaling businesses so I would have her help with that side of things, I am just wondering if there’s potential for both of us to eventually draw an income of at least 150k-200k each (400k+) from an electrical business?