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myscreenname said..
Does net zero mean we stop exporting coal and gas?
I think this is a big issue msn. I don't think anyone really understands what it actually means in practice.
And I don't think anyone knows exactly why either.
I do find it interesting that one big anti-nuke argument is cost, and a lack of actual costings from Dutton.
But nobody has ever costed net zero in electricity generation without nuclear. Mainly I assume because they don't have an answer as to what it is, let alone what it costs. Maybe if FN doesn't like the seven sites Dutton proposed could somebody list the sites required for wind, solar and hydro for net zero without nuclear (I am guessing it will be more than seven!)#.
So, yes if we can realistically only need 2% generating capacity outside of wind/solar renewables then gas would seem to be the cheapest, most sensible solution for Australia. Not resulting in zero CO2, but is it close enough to zero to be immaterial ?
# if my Sunday evening maths doesn't fail me :
1 single reactor nuclear plant = say 1.5GW = (1.5GW * 365*24) = 13,140 GWh
1 wind turbine = say 3 MW = (3MW * 365 * 24 * 25%) = 7GWh
13,140 / 7 = say 2,000 turbines for one reactor, plus storage capacity
At scale assume requirements are a 800m spacing x 4km row spacing footprint for turbines = 6,400 sqkm per reactor equivalent
So to replace seven single reactor nuke stations would need an area about 44,800 sqkm, Assuming wind only, no solar underneath but storage of somesort as well.
So, as a concept of scale, that is about 50% of the area of Tasmania on a 800m spacing x 4km between rows of efficient large turbines. Add in solar and hydro and I'd assume it gets less, but is still a fairly big number.