grk more expensive than nuclear

Have been running over the rough figure for the cost/MWh for Greenrock's Olympic Dam GELs, and they seem worrying.

At 210°C (the reasonable and expected final target), there will be roughly $85/MWh in electricity costs. On top of this, there will is about $5/MWh operating costs (using GDY's figure, which should be fairly constant across operations). This is a total of $90/MWh.
Transmission costs will be minimal enough not to include in a price calculation.

This price is not competitive with nuclear, the other realistic option for sustainable base-load energy production.

For comparison, GDY, who have a temperature target of 270°C-290°C, will be able to produce the electricity much cheaper and more competitively. From 210°C to 270°C, there is in increase in power output of over 100%. It will cost GDY roughly $40/MWh in electricity costs, $5/MWh in operating costs, and $8 in transmission costs, for a total of $53/MWh. Using a figure of 290°C brings this total down to around $45/MWh.

I think there is great scope for SP increases in GRK, but as a company, and in the long term, will GRK be able to produce electricity competitively?