ChickenChunks

What is Chicken Chunks
Chicken Chunks is a mod by ChickenBones, which can load chunks, to keep machines, plants, etc. working/growing. Normally chunks would unload and thus stop updating their contents, if no player is closer than a certain distance. To prevent this from happening, the mod adds two blocks, the Chunk Loader and the Spot Loader.

Advantages of Chicken Chunks

 * Chunks will be loaded again after a server restart.
 * Works with RP Frames.
 * 100% guaranteed bug free according to ChickenBones.
 * External window to check which chunks are currently loaded (open via /chunkloaders).
 * Server owners can configure how many chunks each player can keep loaded via the chunkloaders: per player, per dimension, or globally.
 * Server owners can configure that a Chunk Loader only works, if the owning player is online.

Disadvantages of Chicken Chunks
There's one, but its REALLY big and annoying:
 * There's no option to delete every single anchor from the world, so you eventually have to throw away your entire world because it became laggy.