The main policies are based around the infrastructure and powerlines. First point to note is that it's not a sale of the power infrastructure, it's a lease. What that means is that the Chinese don't own the infrastructure, they're just leasing it for a period of time, and they're only leasing about 49% of it. This could mean nothing for the general person, or it could mean higher power bills, or lower power bills. It's a little unpredictable.
Labor believe they have a better option which is to effectively increase taxes for both the public and the power sector. This will increase the amount we pay in tax and will increase the power bill but probably only slightly.
Honestly, neither option is good but it's one or the other. Personally I vote Greens as they tend to influence government policy in a good way but if the Greens actually took power we'd all be doomed. They're not the brightest group out there but at least they have their heart in the right place, most of the time.