Here's the list of all the mods I have installed:
Jar:
Forge 3.3.8.164
CodeChickenCore 0.5.5
NEI 1.2.2.4 (1.3 crashes due to an EE error)
Mystcraft 1.2.5.0.8.6b-Forge-3.3.7.135
Optifine_1.2.5_HD_S_C6
Mod Folder:
Advanced Machines 1.5
All Buildcraft 3.1.5
BC Additional Pipes 3.1.0
BC Additional BC Objects
EE2 1.4.6.6
EnderStorage 1.1.3
Forestry 1.4.8.6
Forestry IC2 Crops 1.1
IC2 1.97
InvTweaks 1.41b
Laser Mod 1.5
Logistics Pipes BC3 0.2.5B
compactsolars 2.3.2.10
Ironchests 3.8.0.40
NEI Forestry Plugin 1.0.5.17
NEI Redpower Plugin 1.2.2.3
NEI Thaumcraft Plugin 1.0.6.15
Railcraft 5.4.7
All Redpower pr5b2
Rei's Minimap 3.2_04
SneakyPipes 0.1.1
Steve's Carts 1.4.4
Thaumcraft 2.1.6d
Treecapitator 1.2.5h
All WR-CBE
Here's the error from the console:
[IC2] adding ic2.common.TileEntityTransformerLV@27df34b4 to the EnergyNet failed, already added: true
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Unknown Source)
at ic2.common.EnergyNet.addTileEntity(EnergyNet.java:139)
at ic2.common.TileEntityTransformer.onCreated(TileEntityTransformer.java:97)
at ic2.common.TileEntityBlock$1.tickCallback(TileEntityBlock.java:36)
at mod_IC2.tickStart(mod_IC2.java:1311)
at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:16)
at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:164)
at cpw.mods.fml.client.FMLClientHandler.onPreWorldTick(FMLClientHandler.java:269)
at net.minecraft.client.Minecraft.k(Minecraft.java:1505)
at net.minecraft.client.Minecraft.x(Minecraft.java:825)
at net.minecraft.client.Minecraft.run(Minecraft.java:753)
at java.lang.Thread.run(Unknown Source)
Maybe it's my version of forge? I don't crash, it's just that the LV Transformer doesn't work. Storage blocks work fine, as well as the transformer upgrade. I haven't tried any of the other transformers, but I'm afraid that they might not work as well. I can provide more of the console if required.