And this is the BWRX-300 Advanced NPP
The second significant cost is O&M. The National Renewable Energy Laboratory (NREL) in the USA predicts a 2020 cost of US$10.5/kW/yr. At the current exchange rate, that equates to A$16.0/kW/yr. For 500 MW of installed capacity, that's a total cost over 30 years of A$240 million. The O & M cost content works out at A$7.97/MWh.
NREL Operation and Maintenance (O & M) Costs
The third significant cost is fuel and since it is stated frequently that this is 'free energy' the fuel cost content is A$0.00/MWh.
The fourth and final significant cost is decommissioning. An Oct 2017 RFF Report gives a cost for decommissioning a 300 MW US Solar PV Project at $45,976/MW. That's $22.99 million for 500 MW Robertstown Solar. Using 2017 exchange rate and adding in Australia's inflation brings it to A$31.45 million This Decommissioning cost content is A$1.04/MWh.
RFF Report. P.36; Table 9.
The significant cost total is A$66.45/MWh. When applied to the 30.12 million MWh, the cost is A$2.00 billion.
For the Advanced NPP, the BWRX-300, 505 MW of installed 'capacity would generate 3.98 million MWh of 24/7 electricity every year and 238.9 million MWh over their 60 years lifespan. The first significant cost is a investment capital content of A$7.24/MWh.
It is then possible to ascertain all of the remaining costs: Fuel fabrication; O&M; waste fund; decommissioning fund - from an analysis of Hinkley Point C npp. All of these costs add up to €23.00/MWh in 2018. Factor in the 2018 € to A$ exchange rate and Australia's inflation to 2020 and this significant cost is A$37.17/MWh.
The significant cost total is A$44.41/MWh. When applied to 238.9 million MWh, the cost is A$10.61 billion.
After a 30 years lifespan of economical operation, by 2052, Robertstown Solar will have generated an income of £2.59 billion, with significant costs of A$2.00 billion. That's a potential for dividend payments from earnings of A$590 million.
Again,thinking in terms of a Wholesale Electricity Price of A$86.00/MWh:
After 22 years of operation, by 2052, the BWRX-300 generation will have raised an income of A$7.53 billion, with significant costs of A$3.89 billion. That's a potential for dividend payments from earnings of A$3.64 billion (6X more).
But it will carry on for another 38 years of economical operation to reach A$9.94 billion
Working out at A$5.75 for every A$1.00 of capital invested (17X more).