No electrical power

Hello,

Just so we cover all the possibility, have you tried to jump start the vehicle?
Many times a bad battery will give you the no power. If you are able to jump start it then it is a bad battery.

https://www.2carpros.com/articles/symptoms-of-a-bad-car-battery
https://www.2carpros.com/articles/how-to-jump-start-car-battery-using-jumper-cables

If you tried jump starting but still the same outcome. Then there are few other possibility.
It could be a faulty ignition switch, could be a bad wiring in the starting system, etc.

Please let me know little more about what you are observing with this vehicle.

Thank you.