" Due to its inability to switch on and off and ramp below 50%, nuclear has to continue to generate even when much lower cost RE is available and has to be spilled (See Figure 2). This is the major issue that makes nuclear unsuitable for integration with RE.
‘Nuclear with Existing RE’, (scenario 5 in Table 1) is the other ‘less implausible’ scenario. RE build is curtailed in 2027 and 3900 MW of nuclear would be completed after 2040. This would provide electricity at $203/ MWh, which is 59% higher the RE scenario 1.
Scenarios 6 and 7 – ‘Nuclear and natural gas’ and ‘Nuclear only’ – are included for cost comparison only. They could never be implemented as the electricity cost is exorbitant – 80% and 115% respectively higher than the RE equivalent scenarios. "
