Eight-hour energy reserve

An eight-hour energy reserve (or 8HER) is mentioned on B263 under the Machine meta-trait.
:the name resembles Energy Reserve from GURPS Powers, but clearly is not linked to a "source" ... or IS it?
==buying it up or down==
It's plausible for machines to have larger storage tanks, to store more fuel, but still guzzle it at a high rate. Decreased Consumption wouldn't make sense here.
conversely you might want to design something which is fuel efficient (decreased consumption) but which doesn't last more than 8 hours: it stores less fuel, but uses it better.
==Humans==
They essentially have a Food Reserve too, it's just that they don't immediately shut down after 8 hours, they just lose FP.
Their FP is basically the actual food reserve, though it's also a Water Reserve for Dehydration, an Oxygen Reserve for Suffocation, etc which can be pretty confusing.
Metabolism might be represented as ER limited to different functions which is interdependent, with FP having -10% "only while X" dependencies on all those other ER.
==Magic and Food and Fuel==
M79 for Create Food measures quantity as a meal. This is a problem since (see SM note in following section) a "meal" is a different quantity for different SM.
M179 measures Create Fuel energy costs "per TL per pound".
M178 says "one kilowatt-hour (kWh) is equal to 10 energy;"
==Zombies==
Z80 "Endurance follows the assumptions given for the Machine meta-trait" is present under the Internal Energies interpretation of one type.
Z79 uses Dependency to represent starvation causing direct HP damage instead of FP
*there is a Horror version of Dependency allowing it to reduce FP but that should probably be banned for "no FP" creatures
**although, if you're at 0 FP, suffering 1 FP reduces 1 HP too
***which begs the question why Fatigue Attack can't harm no-FP creatures
****Immunity shouldn't be enough, that's for resistible stuff, Damage Resistance or Injury Tolerance is the traditional means
==Toolkit==
Fuel Supply is the name of this feature.
It is the baseline without applying modifiers like Increased Consumption or Reduced Consumption which reduces how many hours the "supply" lasts. Another way of looking at it though, is that there's still the same "8 hour supply" but that it's consumed at different rates: less energy per hour with advantages, more energy per hour with disadvantages.
==Size Modifier==
Bio-Tech discusses what an "hour of energy" would be on page 62: the "meal size" is inherently assumed to adjust with SM.
Category:Concepts