Energy Capacity

Energy of a Warframe is used mainly to power abilities and melee channeling. All Warframes have 4 abilities that at base, cost up to 100 energy to cast. Every Warframe has their own energy-pool with varying capacities depending on the types and costs of their various abilities, with the exception of  Hildryn who has no energy but draws from her shield pool instead. For channeling, energy is used to provide bonus damage and other effects such as  life steal, and to enable parrying while blocking which will nullify all incoming damage, reflect some damage back, and open up melee attackers for finishers, but will drain energy on every blocked attack.

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

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These are the mods currently available in the game. It is worth noting that  Flow and  Primed Flow cannot be used in the same build.

Formula For Modded Energy Capacity

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

$\text{Energy}_{total}=\text{Energy}_{max}+(\text{Energy}_{base}\times \text{Mod Multiplier})$

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

• With  Flow: $300 + (200 \times 1.5)=600$
• With  Primed Flow: $300+(200 \times 2.75)=850$
• With  Primed Flow and  Endurance Drift: $300+(200 \times 2.90)=880$

Buffs

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

 Synoid Gammacor

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 Synoid Simulor

Arcane Helmets

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

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Ash Locust Helmet

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Banshee Reverb Helmet

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Ember Phoenix Helmet

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Mag Gauss Helmet

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Vauban Esprit Helmet

Warframe Starting Energy In a Mission

Formula

Upon loading into any mission, each Warframe has a fixed amount of energy that they start with. This amount of energy is calculated based on the Warframe's free mod capacity and a base value specific for each Warframe (differs even between normal and prime variants). The formula followed is:

$\text{Starting Energy}=\text{Initial Energy}+5(\text{Free Mod Capacity})$

Table of Initial Energies

The initial energy of a Warframe is given from the following table. Do note that this table is currently still under construction and it is still unknown whether these values are calculated off some other attributes or simply fixed parameters for each Warframe. This area of research is still very actively pursued.

View Initial Energy of Rank 30 Warframes at 0 Mod Capacity List▾▾

Warframe	Energy Pool
Ash	??
Ash Prime	50
Atlas	50
Banshee	100
Banshee Prime	125
Baruuk	150
Chroma	75
Chroma Prime	100
Ember	75
Ember Prime	75
Equinox	100
Equinox Prime	115
Excalibur	50
Excalibur Prime	100
Excalibur Umbra	100
Frost	??
Frost Prime	50
Gara	75
Garuda	50
Gauss	100
Harrow	50
Hildryn	N/A
Hydroid	??
Hydroid Prime	100
Inaros	50
Ivara	75
Limbo	100
Limbo Prime	100
Loki	100
Loki Prime	125
Mag	50
Mag Prime	50
Mesa	50
Mesa Prime	65
Mirage	??
Mirage Prime	125
Nekros	50
Nekros Prime	75
Nezha	125
Nidus	50
Nova	50
Nova Prime	150
Nyx	100
Nyx Prime	150
Oberon	??
Oberon Prime	150
Octavia	100
Revenant	50
Rhino	50
Rhino Prime	50
Saryn	??
Saryn Prime	100
Titania	50
Trinity	??
Trinity Prime	125
Valkyr	??
Valkyr Prime	100
Vauban	??
Vauban Prime	100
Volt	50
Volt Prime	125
Wisp	150
Wukong	50
Wukong Prime	65
Zephyr	50
Zephyr Prime	75

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:

$\text{Effective Energy Capacity}_{casting}=\frac{\text{Energy Capacity}}{2-\text{Ability Efficiency}}$

Since casting efficiency is currently capped at 175%, the highest possible upper-bound for the casting effective energy capacity is:

$\text{Effective Energy Capacity}_{casting}\leq 4\times\text{Energy Capacity}$

Toggle Effective Capacity

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

$\text{Effective Energy Capacity}_{toggle}=\frac{\text{Energy Capacity}\times\text{Ability Duration}}{2-\text{Ability Efficiency}}$

For the case where no energy is recovered and a constant rate of energy drain, one can also consider the effective toggle duration as follows: $\text{Effective Toggle Duration}=\frac{\text{Effective Energy Capacity}_{toggle}}{\text{Base Drain Rate}}$

$\text{Effective Toggle Duration}=\frac{\text{Energy Capacity}\times\text{Ability Duration}}{\text{Base Drain Rate}(2-\text{Ability Efficiency})}$

$\text{Effective Toggle Duration}=\frac{\text{Energy Capacity}}{\text{Modified Drain Rate}}$

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:

$\frac{50}{0.25}=200\text{ seconds}$

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

$\frac{744}{0.25}=2,976\text{ seconds}\approx 50\text{ minutes}$

Restoring Energy

In missions, there are various ways to restore energy:

• Energy can be picked up during a mission from Blue Orbs. Blue Orbs dropped by enemies restore 25 energy, while containers drops will restore 50 Energy.
• The Aura  Energy Siphon slowly restores energy for all players. A squad running multiple Energy Siphon auras allow for faster energy recovery.
•  Harrow's  Thurible grants players inside the aura a variable amount of energy from kills made by Harrow, depending on how long the ability was charged and whether the enemies were killed by body shot or headshot.
•  Trinity's  Energy Vampire allows Warframes to regain energy through the four energy pulses the target releases.
•  Limbo's Rift Plane slowly restores energy for all players within it.
•  Octavia's Inspiration passive slowly restores energy over-time for all players that were near Octavia when she cast an ability.
• Team Energy Restores are consumables that grant Energy to nearby teammates in varying amounts, up to 400 total.
• Weapons triggering an Entropy (Syndicate: Cephalon Suda) effect restore 25% of the player's base energy, and provide a base energy boost of +25% for 30 seconds.
• Weapons triggering a Blight (Syndicate: Red Veil) effect restore 25% of the player's base energy, and provide a base movement speed boost of +10% for 30 seconds.
• Zenurik Focus:
  • Energy Pulse passively restores additional energy over-time on picking up blue orbs.
  • Energizing Dash creates a dome on Void Dash that restores energy over-time for all Warframes that walk through it.
• Notable mods that affect energy generation:
  •  Rage or  Hunter Adrenaline: Converts damage on health to energy.
  •  Kinetic Diversion: Converts damage on health to energy for Archwing.
  •  Equilibrium: Health pickups restore a certain amount of energy alongside health recovery.
  •  Quick Thinking or  Gladiator Finesse: Converts energy into health to provide a last resort buffer against death.
  •  Endurance Drift: Increases maximum energy and parkour velocity.
  •  Energy Siphon: Slowly restores energy for all players. Multiple copies of this aura allow for faster energy recovery.
    •  Coaction Drift: Improves the Warframe's equipped aura, including Energy Siphon.
• Arcane Enhancements:
  •  Arcane Energize has a chance to replenish energy for the user and nearby allies on picking up blue orbs.
  •  Exodia Brave restores energy on melee channeling kill.

Mods

• Warframes
• Archwing
• Augments
• Syndicate
• Weapons

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Can restore energy with channeled abilities active

It is important to note that on most occasions, toggle abilities disable energy generation from team abilities, consumables, or passive regeneration methods.

Using Energy as Health

Mods

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These mods stop lethal damage by allowing hits to drain your energy after your health is depleted in exchange for occasionally staggering the player

Notes

• These mods 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.

Last updated: Hotfix 25.7.8 (2019-09-26)