This has been a while in coming. For some time only mages and clerics have had to worry about energy, which let fighters get off the hook.
After some thought I’ve decided that it doesn’t make sense for there to be a per-round energy penalty; warriors fight for hours in battle, and our combats last a half-dozen rounds – three minutes or so – maximum. So the only thing to really assess is energy use due to travel.
Effective at once, therefore, everyone traveling distance will pay the following energy penalty:
- 25 EP for travel from sunup to noon, on foot or on horse;
- 25 EP for travel from noon to sunset on horse;
- 50 EP for travel from noon to sunset on foot;
- 25 EP for a full day’s travel by sea. (Wind and boats pitching and rolling.)
The GM may assess further penalties as necessary.
Recovering energy requires a full night’s sleep, and allows you to recover 50 EP. Note that this mechanic may make mages (and clerics!) even more disinclined to travel, which may lead to whining and complaint. Art imitates life. 
The solution to massive energy drain? Why, it’s Red Bull, of course. But read the next post.
[...] Deep Sleep Clearly, the addition of this mechanic is going to upset mages, who often use significant amounts of energy during combat, and expect to [...]
How then do we stand watches ? No one will ever recover their energy since a watch period breaks up the full nights sleep.
Also, how does this enhance the play of the game or the enjoyment of the player participation ? I’m not being snarky, I really would like to know. No, lets send this one back to the drawing board for reconsideration.
I notice that recovery isn’t scaled for stamina. Shouldn’t sleep recover STA x 25 EP, or something along those lines? It seems that STA should count for something.
Recovery is not scaled for Stamina, not for deep sleep anyway.
I have implemented a change to STA blocks to account for the amount of energy you have to start with (it’s STA+1 x 25 now).
This improves the game by making Red Bull useful for non-mage, non-cleric characters, and by making people be tired. If a mage is in Deep Sleep, he doesn’t get woken up for a combat unless it’s really necessary. That introduces some interesting game situations.