This mod adds some aspects of a Dyson Sphere (https://en.wikipedia.org/wiki/Dyson_sphere) into Minecraft.
The goal is to provide an endgame automation goal, something that can be further expanded by changing the recipes into an "expert progression". The mod is not very useful on its own, it is designed to be used in a modpack.
The primary focus is to build and expand the Dyson Sphere. To achieve that a lot of Space Capsules with Solar Satellites need to be launched into the suns orbit. So a lof of energy and materials will be needed upfront before the Dyson Sphere can be used to produce near infinite free energy. Not mentioning the assembly of the Solar Satellites.
The main components are the Electromagnetic Orbital Launcher, used to add parts to the Dyson Sphere, and the heat based generator setup.
All components have a page in the guide to describe their use. Almost all values in the mod can be changed in the config file.
By the time the Dyson Sphere is complete its energy output will probably be irellevant in most modded playthroughs. That is somewhat intended as constructing the Dyson Sphere to completion is the goal. Using 100% of the energy from it might be impossible.
Having said that: Are you up to a challange? Can you complete the Dyson Sphere?