https://youtu.be/xQzwCDuA394
This is an interesting video addressing an alternative to our existing nuclear energy. While I hope that Thorium as a fuel could be developed. Where Uranium as a fuel costs billions to build a plant (and about 20 years).  Using Thorium as a fuel costs millions to build a plant and can be built in about two years. 

This video demonstrates the size that the core would be.
https://youtu.be/woNU2Vgl7j0

This video demonstrates the scalability of the plants.
https://youtu.be/jzN3YXJhFmA

Another type of process that has be discounted is a cold fusion reactor ... name because the reactions occur at room temperature.
https://youtu.be/UTvaX3vRtRA