Simple Generators Mod 1.16.5/1.12.2/1.11.2 by the ValkyrieofNight team has added 8 new types of generators to the game. All of them are able to produce RF power.

Every Feature of Simple Generators
Each of the eight generators will have its upgradable version that can fit 4 stacks of speed modifiers. The library will offer a digital guide that owns the exact specifications of machines.
Note! Machines have two sorts, Simple and Upgradable.
List of generators
Combustion Generator
Culinary Generator
Ender Generator
Nether Generator
Soul Generator
Fluid Combustion Generator
Geothermal Generator
Turbine Generator
Other information
It’s free for everybody to include the release in their mod pack.
Environmental Tech and Valkyrie Lib are two mods of the owner. In which, the latter is the creation that other mods of the author will need to use.
Simple Generators is a technology mod for Energy. It requires Minecraft Forge and Valkyrie Lib to install.
Screenshots