Suggestion: Switch cable

a) check suggestion thread

b) use batbox/MFE/MFSU

1. Chain of batboxes/MFEs/MFSUs can't be efficiently switched off because of "head" unit to be full of energy. It is needed to connect eath and every batbox in a chain to redstone wire to prevent them from emitting.

2. I have a batbox chain and separate single MFE to charge crystals. I want to disable it from charging itself because my workshop is LV-powered from the batbox chain and I don't want an additional MV->LV transformer in my workshop. I have not enougth energy in a young world to fully fill that separate MFE.

3. Maybe some defense measures like a naked HV cable to be safely switched off for maintainance. I don't want to be occasionly killed due to a fully filled energy storage.

Now, you can use transformers like a switch cable.
Look:
MFSU---------MV-trans-------Fabricator
If you apply redstone to transformer, it will stop emitting MV-pulses

It works, thank you. It is a solution for most cases. And even it is possible to place a lever on a transtormer directly, without any wiring. But in some rare cases it looks like a resource and space wasing. It requires 2 transformers and a golden (or better) wire placed as 3 blocks instead of a small and cheap device than everyone knows by real life. It takes 8 copper bars and a part of golden one per simple switch!

You can avoid of using two transformers - use only one.
Example:
Batbox-------------LV-transformer------------Miner
3-dotted side faces the batbox, and it still emits 32 eu/t
If you'll switch it in "upwards" mode it won't send MV-impulses, because the output of the batbox can't recieve power (and miner doesn't generate anything ^_^)

*cough* pistons *cough*

Quote from Xaiier

*cough* pistons *cough*

*cough* tile entities *cough*

Quote from Ranakastrasz

*cough* tile entities *cough*

Seriously... ARGH...