Me and a friend originally started this mod back in 1.5.2. A new friend updated the code in a working "error" state to 1.6.4. even stated he doesn't work well with API's. I asked him about the errors and he couldn't provide much for me. However what i did get was quite perplexing.
The mod loads fine on its own without IC2. But whenever clicking any machine it crashes the client. (probably a bad method with the GUI) but when IC2 is loaded. It crashes MC before it fully loads. I'm no coder and would like answers to solve this. Even going as far as looking for someone to help get the mod on its way.
http://pastebin.com/pNhn4D64
I only ask for answers regarding these errors. If you wish to see the source let me know. It is on github and is open to the public for viewing. Its supposed to be a addon to IC-2 with a more interesting take on solar energy.