Energy

Energy is a motive in The Sims series that slowly decreases while Sims are awake. If a Sim runs out of energy, he/she will collapse from exhaustion and fall asleep on the floor.
In The Sims Social, this need was renamed to Sleep, possibly to avoid confusion with energy in that game.
==Replenishing==
Sims can replenish their energy by sleeping. Toddlers will awaken whenever their energy bar reaches 100%. If an older Sim's energy bar reaches 100% before midnight, the Sim will awaken when it becomes full. Otherwise, children, teens, young adults, and adults will usually sleep until 6:00 am (06:00) unless they are awakened earlier, though they will automatically wake up when their energy bar is at 100% if they have other actions queued up by the player. In addition, if Sims with full energy bars have autonomous reactions pushed on them, they may wake up. Elders who are asleep past midnight will usually awaken shortly after their energy bar reaches 100%. In The Sims 3, the player can drag the action handle to specify a time for the Sim to wake up.
If a Sim needs a quick boost of energy, they can drink coffee or espresso. Children cannot do this, but in The Sims 2: Seasons, they can get some energy by drinking hot chocolate from the Perfect Packets Hot Chocolate Maker; they can also gain some energy by drinking energy drinks in The Sims 4: Jungle Adventure. Sims can get coffee from a coffeemaker or an espresso machine, or buy an espresso from the espresso bar while on community lots. Drinking coffee, espresso, hot chocolate, or energy drinks will decrease the bladder motive as a consequence, however.
Sims also gain a small amount of energy from sitting down. Sims can nap on lounge chairs, recliners, and sofas, but it doesn't replenish energy as effectively as sleeping in a bed, and active Sims may wake up before they're fully refreshed. In The Sims 3 and The Sims 4, Sims will automatically wake up from a nap after a few hours, with a moodlet that counteracts the effects of low energy.
The more expensive a bed, the faster energy will rise and will also deplete at a slower rate. The more cheaper a bed, the slower energy will rise and will also deplete faster. Expensive sofas will allow sims to raise energy faster with a slower depletion rate but will not fill energy all the way, however, the more expensive the sofa, the higher it will rise. Cheap sofas will raise energy slower as well as giving it a faster depletion rate. Energy will also be at a low level when the sofa has given its maximum energy rise.
==Consequences==
Sims will pass out when they run out of energy. They will collapse onto the floor, or will fall asleep standing up if there is not enough room. In The Sims 2: University, a Sim who passes out while eating will fall asleep face-first into their food. Sims cannot pass out on community lots. Sims cannot pass out while at work or school, but may do so as soon as they are finished. Like with most motives, Sims may refuse to perform certain interactions if they are too tired.
In The Sims 4, infants will automatically lie down and fall asleep on the floor if they run out of energy.
While Sims will not die from exhaustion, they can drown if they become extremely tired while in a swimming pool. They will normally get out of the pool autonomously before this happens unless they are prevented from doing so, such as by trapping the sim into the pool.
==Equivalents for other life states==
===The Sims 2===
For Servos, the equivalent of energy is Power. Servos can replenish this by sleeping or napping, the same as Sims can. If it's daylight, they can use the "Recharge" self-interaction to go outside and stand in the sun until their power is replenished. If they are in gold or platinum aspiration, they can also restore their power by using The Eclectic and Enigmatic Energizer or drinking the Elixir of Life. If the power need gets too low, a Servo will either go outside to recharge, or go berserk and require repairs by a Sim with high mechanical skill, preferably one with a gold talent badge in robotics.
For PlantSims, the need for sunlight has many aspects of the energy motive. If a PlantSim's sunlight need becomes too low during the day, the PlantSim will go outside to be in the sun. If the sunlight need becomes critically low at night, the PlantSim will go outside and collapse, and will revive after dawn the next day.
===The Sims 3===
For SimBots, the equivalent of energy is Charge. SimBots recharge while sleeping, but can also recharge if they get electrocuted.
Mummies do not have an energy motive at all, but move very slowly.
At night, a vampire's energy decays much much slower between 6:00 pm (18:00) and 6:00 am (6:00).
For Aliens, energy is replaced with Brain Power when they become teens.
For plumbots, the equivalent of energy is Battery Power. A plumbot recharging station is available in Buy mode, and plumbots will recharge while turned off. Charging at a recharging station does not appear to be that pleasant however, as the plumbot will repeatedly twitch and sometimes bend down and put its hand to the side of its head as if in pain while charging. If a plumbot's battery power is completely drained, it will shut down. A plumbot with the Solar Powered trait chip will gain battery power while outdoors in daylight. Unlike Servos, plumbots can remain active while using solar power, but the chip may not always provide enough power to completely offset the power drain caused by whatever the bot is doing. Plumbots can syphon power from appliances, but at a cost to their maintenance need.
===The Sims 4===
For vampires, the equivalent of energy is Vampire Energy. Vampires recharge vampire energy by sleeping in a normal bed, sleeping in a coffin, or dark meditating. Vampire energy is also used for vampire powers.
==Energy moodlets==
===The Sims 3===
Image	Moodlet Name 	Mood Effect 	Time Period	From 	Game Dialog/Description 	Notes 	EP
 	Sleepy 	No Mood effect 	3 Hours 	Low Energy Need 	Get (Sim Name) to bed soon, to avoid the wrath of the truly tired. 	if the Sim doesn't sleep after 3 hours, s/he will become tired. 4 hours for Babies and Toddlers. 	
 	Tired 	-40 	3 Hours 	Very Low Energy Need 	When Sims get too tired, their mood begins to go south. 	If the Sim doesn't sleep after 3 hours, s/he will become exhausted. 	
 	Exhausted 	-50 	Until Sleep	Critically Low Energy Need	At this level of sleep deprivation, even the floor looks like a good bed to this Sim. 	Sim may pass out. (They can be woken up using an interaction on the Sim.) Can also be caused by a Moodlet Manager backfire. The sim will also drown to death if its in the swimming pool. 	
 	Well Rested 	+10-30 	10 Hours 	High Energy Need 	It's easy to wake up on the right side of the bed when you got plenty of time in the bed. 	Varies depending on the quality of the bed. +10 mood for each + in the catalog. There is a mood glitch associated with this moodlet, in which it gives a Sim a bad or good mood prior to patch 24.	
 	Slow 	No Mood Effect 	3 Hours 	Low Energy Need 	Even the mighty vampire must sleep from time to time. Seek out a comfortable bed for restful slumber.	Vampires only; receive instead of "Sleepy". Changes to Lethargic after 3 hours. 	
 	Lethargic 	-40 	3 Hours 	Very Low Energy Need 	When Vampires grow too tired, their powers are nonexistent and their mood grows sour. 	Vampires only; receive instead of "Tired". Changes to Drained after 3 hours. 	
 	Drained 	-50 	Until sleep	Critically Low Energy Need	At this level of energy a Vampire is powerless, worse than a normal Sim. 	Vampires only; receive instead of "Exhausted". Vampires may pass out. 	
 	Slept Like The Dead	No mood effect, +10-30	10 Hours 	High Energy Need 	Vampires enjoy sleeping deeply, which is a fair trade off for the lack of a pulse. 	Vampires only; receive instead of "Well Rested". 	
====Equivalents====
Image	Moodlet Name 	Mood Effect 	Time Period 	From 	Game Dialog/Description 	Notes 	EP
 	Need Restoration 	No Mood Effect	8 Hours 	Low Brain Power 	(Sim Name) is feeling a little low on the ol' brain juice. An alien can't keep this kind of thing up all day, you know! 	Aliens only 	
 	Restoration Required 	-40 	6 Hours 	Very Low Brain Power 	It's getting hard to concentrate... (Sim Name) definitely needs to take a break and restore his/her brain energy! 	Aliens only 	
 	Mentally Ravenous 	-50 	Until Sim meditates	Critically Low Brain Power 	Brain... burning! Must... meditate! Regain precious, precious... brainergy! 	Aliens only. Can be caused instantly when summoning meteors.	
 	I Have the Power 	+10 	4 Hours 	High Battery Power Need 	Surging electric currents have filled (Plumbot Name) with power! Only the First Law of Plumbotics keeps him / her from conquering the world. 	After 4 hours, plumbots will have a half battery power. 	
 	Batteries Running Low	No Mood Effect	8 Hours 	Low Battery Power Need 	Systems are still running optimally, but (Plumbot Name) doesn't have much power left in his / her batteries. 	After 8 hours, it will change to "Batteries Depleted." 	
 	Batteries Depleted 	No Mood Effect	3 Hours 	Very Low Battery Power Need 	(Plumbot Name) went too long without a recharge. Find the nearest Recharge Station or Syphon some energy before he's / she's forced to shut down! 	After 3 hours, it will change to "Forced Shut Down" 	
 	Forced Shut Down 	-40 	8 Hours 	Critically Low Battery Power Need	Utterly depleted batteries forced (Plumbot Name) into a temporary shutdown. He / She will need some time to recover from this sudden system shutdown.	During this moodlet, plumbots' batteries will recharge. 	
===The Sims 4===
Image	Moodlet Name 	Effect	Emotion 	Time Period 	From 	Game Dialog/Description 	Notes 	EP
 	Sleeping Soundly 	10000 	Asleep 	Until Sim wakes up	Sleeping 	ZZZzzzzzzzzzzzz... 	 	
 	Tired 	1 	Uncomfortable	3 Hours 	Low Energy Need 	(Sim Name) is Tired, and will need to rest soon. 	Changes to "Exhausted" when timer expires. 	
 	Exhausted 	3 	Uncomfortable	3 Hours 	Critically Low Energy Need	This level of sleep deprivation will make any Sim miserable! 	Sim will pass out when timer expires. 	
 	Tired 	1 	Sad 	Timer not shown 	Low Energy 	(Sim Name) is tired and will need to rest soon. 	Angelic toddlers only. 	
 	Exhausted 	3 	Sad 	Timer not shown 	Critically Low Energy 	This toddler is near passing out, it's time to get him under some covers for some much needed sleep.	Angelic toddlers only. Sim will pass out when moodlet expires.	
 	Revitalized by Nap	1 	Energized 	6 Hours 	Taking a Nap 	Nothing revitalizes the body like a quick little cat nap. 	Randomly appears. Does not appear on Lazy sims 	
==Gallery==
File:TS2-Bed.png|A bed, which is used in all games to satisfy the Energy need.
Energy.png|Energy stages for a normal Sim in The Sims 3.
Ts2 sim passed out.png|A Sim who collapsed from exhaustion in The Sims 2.
Ts2 sim passed out in food.png|A Sim in The Sims 2 who fell asleep in his food.
FaintedSim.jpg|A Sim who collapsed from exhaustion in The Sims 3.
Sim passed out TS4.png|A Sim who collapsed from exhaustion in The Sims 4.
Energy Failure.png|The icon for an energy failure in The Sims 4
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