Rolls-Royce to build mini nuclear reactors in the U.K.

The video discusses the plan to install small modular reactors (SMRs) in old nuclear sites across the UK by 2029. Rolls Royce aims to build 10 to 15 mini nuclear stations, each lasting 60 years. These reactors will be mass-produced with prefabricated components to reduce costs. The reactors will be about 1.5 acres in size, significantly smaller than major stations like Hinkley Point, and will provide 220 to 440 megawatts of energy, equivalent to up to 150 onshore wind turbines.

What is the purpose of prefabricated components in the construction of these reactors?

What is the energy output range of one reactor in megawatts?