This paper examines global cost trends in nuclear energy, both in terms of historical contemporary costs and also historical forecasts of future costs. The rationale for the study is to support and inform the UKERC TPA report ‘Presenting the Future: An assessment of future cost estimation methodologies in the electricity generation sector’. Approximately 75 academic articles and grey literature reports have been reviewed for this case study, both for data gathering and analysis purposes, in order to achieve three specific aims:
- Examine the key trends in contemporary cost estimates and future cost projections (Section 2);
- Understand the drivers underlying these key trends and the reasons for disparities between anticipated cost levels and actual outcomes (Section 3);
- Identify implications for cost estimation methodologies (Section 4).