RF Windmills

1,963,822 Downloads Last Updated: Dec 8, 2015 Game Version: 1.7.10  

Note: Please delete your configuration file when updating to 0.7 as the new energy system uses different values and variables.


This mod adds four tiers of wind turbines based on Thermal Expansion's machine frames (basic, hardened, reinforced, and resonant) with increasing RF generation and internal storage. The exact RF/t varies depends on altitude, space around the block, and the efficiency of the attached rotor, with the turbine producing no energy at all at a height of 60 blocks or below, and producing maximum energy at an altitude of 100 blocks or more. The turbine also needs space for the air to flow, and so placing blocks in direct line (a 3x3 tunnel) of the rotor (closer than 10 blocks) will also reduce the turbines effectiveness. Weather also alters the effectiveness, with harsh weather conditions increasing the RF/t. The rotor can also be turned by hand to produce energy at a reduced rate.


By default the a maximum of 40 RF/t is assumed to be collected from the wind. This is then multiplied by an efficiency depending on the quality of the windmill as follows


  1. Basic - Efficiency factor of 0.1 and stores 16 000 RF
  2. Hardened - Efficiency factor of 0.3 and stores 32 000 RF
  3. Reinforced - Efficiency factor of 0.6 and stores 48 000 RF
  4. Resonant - Efficiency factor of 0.9 and stores 64 000 RF

Likewise the rotors have associated efficiency values which are


  1. Iron Rotor - 0.625
  2. Electrum/Gold Rotor -0.75
  3. Signalum/Nether Rotor - 0.875
  4. Enderium/Diamond Rotor - 1.0
  5. By Hand - 0.4

Placing Windmills

To create a windmill, first place the windmill block and then right click it with the rotor item to attach the rotor to the windmill on the side you clicked. Breaking the windmill will also drop the rotor, but breaking the rotor will not break the windmill, so swapping out rotors is easy.


Sneak-right clicking on a wind turbine will report its current (and maximum) energy storage as well as the amount of RF generated per tick (as of v0.41), and sneak-right clicking with a Buildcraft-compatible wrench will instantly drop the block with its storage intact.


Holding right-click on a rotor that is not producing RF will cause it to rotate at a slower rate, but still produce energy. This way you can use the windmills as makeshift (albeit expensive) dynamos. The height, air flow, and weather will not affect the generation values, but the efficiencies of the rotor and windmill will due to internal friction etc.



By default the rotors will take on the appearance of whatever material was used to make them, and the turbine blocks will also change texture depending on their material. You can disable this feature using the config file, and force the rotors to always display as the iron texture.



Whilst this mod is designed to work with Thermal Expansion, it isn't necessary and the mod will work perfectly well without, albeit with different recipes to compensate for the lack of machine parts. Thermal Foundation isn't actually necessary either, although both are recommended.



The code is licensed under the GPL and I'm by no means a Java dev so feel free to fork. If you find any bugs or have feature/enhancement requests please submit an issue.



Use this in whatever modpack you want, no need to ask!


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