Some are simplified versions of current reactors, others involve entirely new technologies.

All current fast reactors are liquid metal cooled reactors.

"But there is no way if you think what they did with their current reactor."

In fusion, atoms are joined together rather than split apart as they are in fission, the process that powers current nuclear reactors.

Almost all current reactors are of this type.

They are the majority of current reactors.

Recycling spent fuel is the core of its design and it therefore produces only a fraction of the waste of current reactors.

In order to replace the current 58 reactors, one new large unit will have to be built about every year for about 40 years.

Develop technologies and other solutions that can improve the reliability, sustain the safety and extend the life of current reactors.

As the current 103 nuclear reactors continue to generate electricity for the next few decades, the line on the chart remains mostly flat.