I can’t find the icon for power plants. There is no option to build them. Does anyone know why?

Power Plant buildings are found n the build menu under the Electricity option. You should be able to build 1 early on. You will also have access to the wind turbine that generates some electricity. The solar panel is only available if you subscribe to the Arms Supply paid add on.

These generic app gamer answers are ridiculous. You can't build them because there are not there. Just like I have 4 farms I can't build them with. There is something seriously wrong with the game with all these glitches

You need to do the quests in the beginning and eventually you'll get to a quest that makes you build a power plant. Have to do the quest first just follow the instructions until you can get it built. I was dealing with same problems with farms until I figured it out