How do CANDU reactors rank in performance against other designs?
A. CANDU performance ratings (percentage of production against rated capacity) have traditionally led all other designs, primarily due to the on-line refueling capability. Today the average lifetime performance rating of the world-wide CANDU fleet is comparable to its nearest competitors (PWRs and BWRs), and over 10 points higher if one considers only the commercial CANDU 6 units that actually compete against PWRs in the market for new capacity.