Its basically a power plant cheat code

Ive found this useful in custom build specifically with Props and mods like the Procedural Objects Mod. This Asset provides power to your city in the form of a circular plot. It is listed under the power tab in game. doesn't provide infinite power, but it provides A LOT. I think my game generated somewhere in the 2000s MWh if i'm not mistaken. Can be plopped near city, but i recommend using Electric roads, or power cables and putting the plot in the outskirts of your city becasue it is easy to lose. 1x1 Circular

what is this for

I like the map and all, but what exactly is this asset and why do I need it for the map?