 Estimating the cost of constructing nuclear power plants can be challenging. This week, nuclear experts from around the world are in Vienna to discuss those challenges at the IAEA's first ever technical meeting on nuclear power cost estimation. The experts hail from member states with established nuclear power programs as well as newcomer countries that are actively considering adding nuclear power to their future energy mix. Nuclear power construction projects are complex and require large capital investments. All countries considering the introduction of nuclear power will need to well plan the reactor construction phase in order to optimize costs and delivery schedules. The meeting provides a unique opportunity for nuclear newcomer countries to learn from experienced countries how to manage this construction, identifying factors affecting costs and delays and exploring ways to reduce them.