Some Aspects of Darlington Status Schedule and Complexity

Abstract

Darlington is a four unit station, 50 miles east of Toronto. The units each have a net capacity of 881 megawatts, When originally started in 1977 they were to be in service by 1989. However, basic delays were introduced by the turndown in demand growth and the first concrete placement was in 1981. When the project was delayed, the engineering was slowed down because of the other massive projects underway. As a result the engineering design has been done in parallel with the construction and commissioning. This has introduced further delay in the schedule. Safety and licensing issue analysis, construction and commissioning experience have all pointed out problems which have been dealt with by engineering changes. These changes are still being fitted into most key systems. The overall result will be a very complex station. Staffing estimates for maturity have increased from 850 to 1150. This is driven by both actual field activities and massive record, procedure and followup requirements. We have had a good relationship with the community and look forward to the same in the future. The present discussions on building permits will be resolved.