Commentary on news from India: A comparative techno-economic analysis of CANDU-type heavy-water reactors (PHWRs) in the context of Serbia's energy strategy.

In modern discussions about the development of nuclear energy, a binary choice between large-scale light-water reactors (PWR) and promising small modular reactors (SMR) often dominates. However, there is a third technological category—the Canadian Deuterium-Uranium reactors (CANDU), with 50 years of commercial operation experience in seven countries worldwide. This report examines the technical characteristics of CANDU and their potential to secure Serbia's energy sovereignty.