Аннотация:This chapter presents the current status of electricity generation in the world, and the role of nuclear power with an emphasis for this book on the contribution of pressurized heavy water reactors (PHWRs). This is viewed in the context of competitive global energy markets, emerging concerns on climate change, and meeting the growing world energy demands in a sustainable manner.
Recently, electricity generation with nuclear power has decreased from ~14% before the severe accident at Fukushima Nuclear Power Plant in 2011 to about ~10% as some countries accelerate closure and decommissioning and avoid new nuclear plant builds. Therefore it is important to make projections on near-term and long-term trends over the next 25 years, and to develop innovative nuclear technologies that would become cost-competitive with other sources of energy. For PHWRs this requires looking at their historical development, their raison d’etre and competition with light water reactors, and their potential role in a future energy mix that supports the global environmental, economic, and political goals of reduced emissions, less waste streams, improved efficiency, and addressing proliferation concerns.