Yes u r right, I also thinking the same, why not ICF making LHB coaches with inbuilt generator facility like ICF normal coaches. And why not other manufacturer of LHB coaches not making facility of inbuilt generator like ICF coaches. (EOG-END of Generating -Generator Coach) Because of every AC train with EOG coach taking place of passenger coach. And RM declare that they are going to increase the coaches from 24 to 26.