This is the thing, a 14 volt reading is so 'normal' as to not be worth mentioning. If you put a voltmeter across the battery, or at the output terminal of the alternator, you can rev the motor. Watch the voltage, it should remain around the 14 volt (+/- 1 volt) level, If it shoots above 15 volts and rises with the RPM, your regulator is definitely bad (or you have a short somewhere). A typical alternator is capable of putting out over 25 volts. Just for a frame of reference, 13.8 is the ideal, perfect voltage level. 12 volt or less, the alternator is not working at all. Over 16+ volts (ball park) and the alternator is working overtime (bad regulator or shorted wire). An overvolt condition will eventually fry any electronic circuits and likely blow out some light bulbs. It could even set the wire harness on fire (seriously). I am just warning you to be cautious. Overvolts is bad, very bad. Undervolts is not good but will typically just give you a dead battery.
If you are not sure what is going on, get professional help with it. Do not take chances (unless you are well insured).