How to create the practical energy power mix

I visited the NIIGATA SCIENCE MUSEUM today.

https://www.sciencemuseum.jp/

I thought that human history served to create power. First, horses were used as a source of power. Next, steam replaced the horses. Then nuclear power was viewed as a promising energy source.

Now Japan is faced with the optimization of the energy source mix. Nuclear power plants have been unreasonably and emotionally rejected. After the Great East Japan Earthquake of 2011, the use of fossil fuel has increased while nuclear plants have been reduced. The time has come to discuss resuming nuclear use with an additional and realistic countermeasure for Tsunamis. Keeping this energy mix would not be sustainable.

https://www.enecho.meti.go.jp/about/special/johoteikyo/energyissue2020_1.html