Right.... because I have nothing better to do today...
This is based on Larry and Danimal's data back to the introduction of the Master's tier, which was about the same time as the glitch got stopped. You'll see that with a couple of outliers, energy requirements are actually pretty stable on a per day basis, 500-550k for faction masters, 240-280k for prestige masters, 55-60k for masters indy and 16-18k for prestige indy.
I suspect if I did the analysis on a per hour basis the spread would be even tighter, as i know that some of the end of cycle 1 day events, were 21 hours as opposed to the full day. There are a couple of others where the event length might be slightly out, but I think it's 95% accurate.
So, to reiterate... energy reqs are broadly stable... what has changed is the value of the prizes and the introduction of equipment, which changes peoples willingness to do the indy events vs exclusively focusing on the faction part.