To place it in the world hold the Portable Grid while sneaking.
When placed in the world, it's possible to toggle the redstone mode of the Portable Grid.
To use the Portable Grid the item or block needs Forge Energy.
It has no dependency on any storage network whatsoever. It's essentially a mini storage system running on Forge Energy.
The Portable Grid draws energy on following actions:
|Action||Amount of Forge Energy drawed|
|Opening the Portable Grid||30 FE|
|Pulling an item from storage||3 FE|
|Pushing an item to storage||3 FE|