Cerdin

Seems like a bug. Have you tried to delete .techniclauncher directory and redownload everything with launcher ? Or maybe you are near the spawn point and spawn-point protection is turned on (default) ?

I put electrical engine (from forestry) on arboretum and logger (no power pipes) and power it with geogenerator (for now, till a get some solars). Works very well and maybe it will work for you too.