Yes it is profitable as long as done right. You will have to educate yourself and learn the right way, so ask a lot of questions. For example if you were to buy all lower processing Nvidia 1030 cards it wouldn't be profitable. And if you mined the wrong coins it wouldn't be profitable. But at .04Kwh you are at a very good price with electricity. Buy the right cards at a good price, mine the right coins and you should do okay.