Energy of a Warframe is a resource used mainly to cast abilities. Warframes have 4 abilities that at base, cost up to 100 energy to cast. Almost every Warframe has their own energy-pool with varying capacities depending on the types and costs of their various abilities, with the exceptions of  Hildryn, who has no energy but uses shields, and  Lavos, having no energy but instead using a cooldown system.

Like health and shields, a Warframe's energy capacity scales with their rank and through the use of mods or buffs. It is also worth noting that the words "power" and "energy" are often used interchangeably by members of the community.

Increasing Energy Capacity[]

Mods[]

These are the only mods currently in the game that increase energy capacity. It is worth noting that  Flow,  Primed Flow, and  Archon Flow cannot be used together.  Auxiliary Power only works on Archwings, and  Adrenaline Boost in Conclave.

Formula For Modded Energy Capacity[]

These mods increase the energy capacity of a Warframe with the following the formula:

So taking  Volt Prime as an example, with 200 base energy and 300 max energy he will have:

Buffs[]

The only buff currently available to increase energy capacity is Cephalon Suda's Entropy effect. Entropy will release a 25-meter AoE radial attack around the player, dealing 1000  Magnetic damage and applying the Magnetic Status Effect to enemies in range, increasing damage dealt to their shields. It will also restore 25% of the player's base Energy, and provide a (base) Energy boost of +25% for 30 seconds.

Arcane Helmets[]

These Arcane Helmets are retired helmets that in the past used to grant increased energy capacity to their respective Warframes.

Azure Archon Shard[]

The Azure Archon Shard is a guaranteed reward from defeating Archon Boreal that can provide a flat increase to Energy Capacity after all bonuses are taken into account. Regular Shards provide 50 additional Energy Max, while Tauforged Shards provide 75.

Archon Shards can only be obtained through Archon Hunts, which are unlocked after completing Veilbreaker, or through activities in Albrecht's Laboratories like Netracells, which are unlocked after completing Whispers in the Walls, and Deep Archimedea, after obtaining Rank 5 for the Cavia Syndicate

Starting Energy[]

Starting Energy refers to how much energy a Warframe starts a mission with, when reviving from Death, or going through a Sanctuary Onslaught conduit.

Warframe	Starting Energy (energy on spawn)	Rank 0 Energy Capacity (base capacity)	Rank 30 Energy Capacity (after ranking bonus applied)
Ash	50	100	150
Ash Prime	50	100	150
Atlas	50	175	225
Atlas Prime	75	215	265
Banshee	100	175	225
Banshee Prime	125	215	265
Baruuk	150	200	300
Baruuk Prime	150	200	300
Caliban	75	140	190
Chroma	75	175	225
Chroma Prime	100	200	300
Citrine	50	130	180
Dagath	50	175	225
Dante	50	200	270
Ember	75	175	225
Ember Prime	75	175	225
Equinox	100	175	225
Equinox Prime	115	200	250
Excalibur	50	100	150
Excalibur Prime	100	175	225
Excalibur Umbra	100	175	225
Frost	50	100	150
Frost Prime	50	100	150
Gara	75	175	225
Gara Prime	75	175	225
Garuda	50	140	240
Garuda Prime	100	220	320
Gauss	100	175	225
Gauss Prime	100	175	225
Grendel	100	175	225
Grendel Prime	115	200	250
Gyre	100	190	240
Harrow	50	100	150
Harrow Prime	125	140	190
Hildryn	0	0	0
Hildryn Prime	0	0	0
Hydroid	75	140	190
Hydroid Prime	100	175	225
Inaros	50	100	150
Inaros Prime	75	140	190
Ivara	75	215	265
Ivara Prime	100	250	300
Jade	125	150	200
Khora	75	140	190
Khora Prime	100	175	225
Kullervo	150	175	225
Lavos	0	0	0
Limbo	100	175	225
Limbo Prime	125	215	265
Loki	100	175	225
Loki Prime	125	215	265
Mag	75	140	190
Mag Prime	100	215	265
Mesa	50	100	150
Mesa Prime	65	140	190
Mirage	125	175	225
Mirage Prime	125	175	225
Nekros	50	100	150
Nekros Prime	75	140	190
Nezha	125	175	225
Nezha Prime	125	175	225
Nidus	50	100	150
Nidus Prime	75	140	190
Nova	100	175	225
Nova Prime	150	215	265
Nyx	100	175	225
Nyx Prime	150	175	225
Oberon	75	175	225
Oberon Prime	100	215	265
Octavia	100	175	225
Octavia Prime	100	215	265
Protea	50	175	225
Protea Prime	50	200	250
Qorvex	50	150	200
Revenant	50	140	190
Revenant Prime	100	175	225
Rhino	50	100	150
Rhino Prime	50	100	150
Saryn	50	175	225
Saryn Prime	100	200	300
Sevagoth	75	140	190
Sevagoth Prime	100	175	225
Styanax	50	175	225
Titania	100	175	225
Titania Prime	125	215	265
Trinity	75	175	225
Trinity Prime	125	175	225
Valkyr	50	100	150
Valkyr Prime	100	175	225
Vauban	75	175	225
Vauban Prime	100	175	225
Volt	50	100	150
Volt Prime	125	200	300
Voruna	50	100	150
Wisp	150	200	300
Wisp Prime	150	200	300
Wukong	50	130	180
Wukong Prime	65	145	195
Xaku	50	160	230
Yareli	50	200	300
Zephyr	50	100	150
Zephyr Prime	75	175	225

Formula[]

Starting Energy can be increased with unspent mod capacity.

The formula followed is:

When  Preparation is equipped, the formula becomes:

Mods[]

Effective Energy Capacity[]

Casting Effective Capacity[]

Similarly to how one can define the concept of "Effective Health" by weighting the number of hit-points with the corresponding damage reduction, one can also define the concept of casting effective energy capacity by weighting the energy capacity using the Ability Efficiency factor:

Since casting cost can not be reduce under 25% of the base cost, the highest possible upper-bound for the effective energy capacity is:

Toggle Effective Capacity[]

Since the efficiency of toggle abilities depends also on the duration, in that case the formula becomes:

For the case where no energy is recovered and a constant rate of energy is drained, one can also consider the effective toggle duration as follows:

Due to the definition of the terms, there are many ways in-which the formula for effective toggle duration can be expressed.

Apart from toggle duration, this can be used to work out the effective duration granted per energy pick up.

Examples[]

Suppose a  Prowling  Ivara has a modded drain of 0.25 energy/sec. An orb of 50 energy would provide:

Considering the same Ivara with full energy pool of 744 capacity, she can remain in prowl for:

Restoring Energy[]

Energy does not naturally regenerate over time unless the  Energy Siphon aura mod is equipped by at least one member of the squad. Otherwise, energy must be restored either by picking up Energy Orbs (and Health Orbs with  Equilibrium) or by a few other means.  Trinity and  Harrow are the two Warframes with an inherent ability to explicitly restore energy to all Warframes within the squad, and  Nekros can  Desecrate nearby corpses for a chance to drop more Energy Orbs.  Limbo has, and grants, access to the Rift Plane, a dimension in which Warframes regenerate energy over time consistently. The  Zenurik Focus tree grants the  Energy Pulse and  Wellspring abilities; the former being a passive that restores additional energy over-time when picking up Energy Orbs, and the latter being an active ability that creates a dome that restores energy over-time to all Warframes that walk through it.

Two other mods can allow for what can be significant energy restoration by converting a portion of the damage received by enemy attacks on a Warframe's Health into energy:  Hunter Adrenaline and  Rage. However, these are obviously very risky for many frames and are only suitable for those that are rather "health-tough" with strong base Health, Armor and self-healing; frames that typically rely on constant Stealth or a Shield-Gating defense will not be able to benefit much from these mods.

Besides the Entropy effect from  Cephalon Suda, the Blight effect from Red Veil also restores 25% of the player's base energy, and provides a base movement speed boost of +10% for 30 seconds. Squad Energy Restores are consumables that can grant energy to nearby teammates in varying amounts, up to 400 total. When using a Prime Warframe, moving close to a Death Orb will cause it to release a radial wave that restores 250 energy to all nearby Warframes within a small radius, this effect can only occur once per orb.

It is important to note that on most occasions, toggled abilities disable energy generation from team abilities, consumables, or passive regeneration methods. Some exceptions to this are  Chroma ( Spectral Scream and  Effigy) and partially  Equinox ( Pacify & Provoke and  Mend & Maim).

***Casting any abilities will temporary stop any passive energy regeneration methods from working, due to the the "drain" needs to be accounted for, it is suspected that this draining is coded to be treated like any toggled/channeled abilities. Frames that casts frequently will benefit from passive energy regeneration far lesser than those who casts lesser due to this mechanic.

Abilities[]

Aside from the aforementioned abilities, there are a few others that have varying chances to drop/spawn Energy Orbs which can be picked up by anyone in a squad.

While not restoring energy directly nor indirectly,  Grendel has the unique ability to increase energy gained from all sources and methods mentioned so far, this affects the Warframe itself and allies.

	2 50	Nourish Regenerate health as Grendel absorbs nourishment from enemies in his gut. While he digests, enemies that attack or are attacked by Grendel suffer Viral Damage and energy sources provide more energy. These buffs extend to squad mates. Introduced in Update 26.0 (2019-10-31)	Strength:20% (damage on digestion) 600 / 700 / 800 / 1000 (self heal on cast) 1.5 / 1.65 / 1.8 / 2 x (energy multiplier) 100 / 150 / 200 / 250 ( Viral damage on hit) +40% / +50% / +60% / +75% ( Viral damage buff)
			Duration:10 / 15 / 20 / 25 s (buff duration)
			Range:10 / 15 / 20 / 25 m (buff radius) 12 m (splash radius)
			Misc: 10 ( Viral status stacks) 2 s (explosion cooldown)
			Subsumable to Helminth

Mods[]

Arcanes[]

Energy Reduction[]

Sorties with the Energy Reduction condition is the only way to reduce a Warframe's Total Energy capacity. This also reduces passive energy regeneration effects, like  Energy Siphon and  Zenurik's abilities.

There are also some instances where a Warframe's energy can be expended and/or stopped from regenerating. Nightmare Mode's Energy Drain condition slowly drains 15 energy per second throughout the mission. On top of its regular effects, a  Magnetic proc will drain 90 energy over 3 seconds, or 30 energy per tick. In Conclave,  No Current Leap nullifies passive energy regeneration in exchange for increased mobility.

Using Energy as Health[]

Mods[]

These mods stop lethal damage by allowing hits to drain your energy after your Health is depleted in exchange for occasionally staggering the player. They synergize extremely well with  Rage and  Hunter Adrenaline since all the health drained before taking lethal damage would ensure that there is enough energy for the mods to consume.

Patch History[]

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