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Extend Shields icon (Federation).png
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Extend Shields icon (Klingon).png
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Extend Shields icon (Romulan).png
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Extend Shields icon (Federation).png
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Extend Shields icon (Dominion).png
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Extend Shields is an Engineering Bridge Officer space ability. It increases the shield regeneration of an ally that is within 7.5 Km from the player and increases the target's shield damage resistance. Recommended for players in a healing role.

Basic Information[]

  • Profession: Engineering
  • Locale: Space
  • Game Description: Extend Shields regenerates the shields of the target ally and improves their damage resistance. Increases in effectiveness based on current shield power level.
  • Usage Notes
    • Be aware that the ability has a 7.5 Km range. This means that if you apply it to an ally, and then they go beyond 7.5 Km, they stop benefiting from the heal. However, targets can sail back into the 7.5 Km sphere and regain the heal. Hence, it is important to corral your team-mates (in-game chat/voice, or 3rd party applications), as well as being mindful of your spatial proximity to your team-mates too.
    • This is NOT an ability that you can apply to yourself. Therefore, if you only play solo content (namely the Foundry and story content), then this ability should be avoided.

Detailed Information[]

Ability Ranks[]

Ability/User Rank CD Ability Effects
Rank I: Lieutenant
(in Tier 2 ship)
45 sec
  • 37.5 Shield Regeneration each sec for 30 sec
  • Reduces Damage to Shields by 19% for 30 sec
Rank II: Lt Commander
(in Tier 2 ship)
45 sec
  • 66.5 Shield Regeneration each sec for 30 sec
  • Reduces Damage to Shields by 27% for 30 sec
Rank III: Commander
(in Tier 4 ship)
45 sec
  • 83.2 Shield Regeneration each sec for 30 sec
  • Reduces Damage to Shields by 35% for 30 sec


  • The numbers given above are based on 50 shield power with 0 points in the Science Skill 1 R1.png Shield Restoration skill.
  • The damage resistance buff depends exclusively on Shield power. No other skills or abilities affect this buff, but the buff does stack with other damage resistance buffs, items and skills.
  • The heal provided by Extend Shields depends heavily on three factors.
  • Fractional points in skills (from Threat-Scaling Science Consoles) or shield power Efficient Captain icon.pngCommon icon.png Trait: Efficient Captain, Engineering Skill 3 R1.png Warp Core Efficiency,Engineering Skill 3 R1.png Warp Core Potential, and other items which affect power levels) and other items which affect power levels) will affect the formulas below.
  • Formula for Heal over Time
    • HoT = (Ship Tier + 1) / 2) * ((Ability Rank + 2) / 3) * ((Skill / 200) + 1) * 25
  • Formula for Damage Reduction Buff
    • Rank I = (Shield Power * 0.1) + 14
    • Rank II = (Shield Power * 0.1) + 22
    • Rank III = (Shield Power * 0.1) + 30
  • Extend Shields was significantly reworked on February 2, 2011[1], increasing the range from 5km to 7.5km and allowing the target to leave that range without breaking the buff. Now, if a target goes outside the 7.5km range, the buff will drop; but if the target comes back into range, the buff will be restored.
  • Because Emergency Power to Shields is a shield ability, it was added to the shared cooldown that already existed between Extend Shields and Reverse Shield Polarity on October 10, 2012[2]. Emergency Power to Shields was subsequently removed from that shared cooldown in the following patch on October 18, 2012[3], but the shared cooldown between Extend Shields and Reverse Shield Polarity still exists.
  • Unlike other heals, Extend Shields is actively generated by the caller. Because of this, the buff cannot be removed from the target by using abilities like Subnucleonic Beam on the target. The caster must be targeted instead. In many ways, it is similar to Shield Frequency Modulation.


  • There are no images for this ability yet.


v · d · e
Console eng icon.png Engineering
Ground BOff or Player Chroniton Mine BarrierCombat SupplyCover ShieldEquipment DiagnosticsFuse ArmorMedical Generator FabricationQuantum Mortar FabricationQuick FixReroute Power to ShieldsShield Generator FabricationShield RechargeSupport Drone FabricationTurret FabricationWeapons Malfunction
Player only Engineering ProficiencyForce Field DomeOrbital StrikeSeeker Drone FabricationPlace Transphasic Bomb
Space BOff or Player Aceton BeamAuxiliary to BatteryAuxiliary to DampersAuxiliary to StructuralBoarding PartyDeploy Construction Shuttle WingDirected Energy ModulationEject Warp PlasmaEmergency Power to AuxiliaryEmergency Power to EnginesEmergency Power to ShieldsEmergency Power to WeaponsEmit Unstable Warp BubbleOverload Integrity FieldEndothermic Inhibitor BeamEngineering TeamExtend ShieldsReverse Shield PolarityStructural Integrity Collapse
Player only Engineering FleetEPS Power TransferMiraculous RepairsNadion InversionRotate Shield FrequencyIntrusive Energy Redirection
Console sci icon.png Science
Ground BOff or Player Anesthizine GasDampening FieldElectro-Gravitic FieldHyperonic RadiationHypospray - DyloveneHypospray - MelorazineMedical TricorderNanite Health MonitorNeural NeutralizerSonic PulseStasis FieldTachyon HarmonicTricorder ScanVascular Regenerator
Player only Biofilter SweepExothermic Induction FieldNanoprobe InfestationScientific AptitudeTriage
Space BOff or Player Charged Particle BurstDelayed Overload CascadeDestabilizing Resonance BeamEnergy SiphonFeedback PulseGravity WellHazard EmittersJam Targeting SensorsMask Energy SignaturePhotonic OfficerPhotonic ShockwavePolarize HullScience TeamScramble SensorsSubspace VortexStructural AnalysisTachyon BeamTractor BeamTractor Beam RepulsorsTransfer Shield StrengthTyken's RiftVery Cold In SpaceViral Matrix
Player only Photonic FleetScattering FieldScience FleetSensor ScanSubnucleonic BeamCo-opt Energy Weapons
Console tac icon.png Tactical
Ground BOff or Player AmbushBattle StrategiesDraw FireFire on my MarkLungeMotion AcceleratorOverwatchPhoton GrenadePlasma GrenadeSmoke GrenadeStealth ModuleStun GrenadeSuppressing FireSweeping StrikesTarget Optics
Player only Rally CrySecurity EscortStrike TeamTactical Initiative
Space BOff or Player Attack Pattern BetaAttack Pattern DeltaAttack Pattern OmegaAugment Boarding PartyBeam Array: Fire at WillBeam Array: OverloadCannon: Rapid FireCannon: Scatter VolleyDispersal Pattern AlphaDispersal Pattern BetaFocused AssaultKemocite-Laced WeaponryDistributed TargetingTactical TeamTarget Auxiliary SubsystemsTarget Engines SubsystemsTarget Shields SubsystemsTarget Weapons SubsystemsTorpedo: High YieldTorpedo: Spread
Player only Attack Pattern AlphaFire on my MarkGo Down FightingTactical FleetTactical InitiativeVulnerability Assessment Sweep
Ground BOff or Player Feign DisintegrationFrictionless Particle GrenadeHarmlessIncite ChaosNeurolytic Hypo InjectionPhotonic DecoyResonant Tachyon StreamSite-to-Site EnsnareSonic Suppression FieldSubspace Anesthezine MineTripwire Drone
Space BOff or Player Electromagnetic Pulse ProbeEnergy Weapons: Surgical StrikesEvade Target LockIntelligence TeamIonic TurbulenceKinetic MagnetOverride Subsystem SafetiesSubnucleonic Carrier WaveSubspace BeaconTorpedo: Transport WarheadViral Impulse Burst
Ground BOff or Player Coordinated Bombing StrikeDelegated DevastationHammer and AnvilOverwhelm ShieldsReturn FireSanctuaryStrategic AnalysisShock and AweTake CoverTimely Intervention
Space BOff or Player Ambush Point MarkerCall Emergency ArtilleryConcentrate FirepowerNeeds of the ManyOverwhelm EmittersPhalanx FormationRally Point MarkerReroute Power from Life SupportSubspace InterceptionSuppression Barrage
Space BOff or Player Attack Pattern LambdaDeploy CountermeasuresLock TrajectoryPilot TeamClean GetawayFly Her ApartHold TogetherReinforcements SquadronCoolant IgnitionForm UpReroute Reserves to WeaponsSubspace Boom
Temporal Operative
Ground BOff or Player

Causal EntanglementChronometric DiffusionChronoplastyDegenerationParadox BombRecursive AfflictionSpread DecayTachyonic ConversionTemporal NarcosisUncertainty Burst

Space BOff or Player

Channeled DeconstructionHeisenberg AmplifierEntropic RedistributionCausal ReversionEntropic CascadeShared FateRapid DecayGravimetric ConversionChronometric Inversion FieldTimeline CollapseRecursive Shearing

Miracle Worker
Ground BOff or Player

Generate Ablative ProtectionGravitic Induction FieldHarmonized ShieldsLogic BombOverload Power CellsTechnical MishapThrow Regenerative Nanite CanisterVISOR Emulation Overlay

Space BOff or Player

Null Pointer Flood Narrow Sensor BandsReroute Shields to Hull ContainmentAlign Shield FrequenciesDeploy Gravitic Induction PlatformEnergy Weapons: Exceed Rated LimitsTorpedoes: Nanite Repair PayloadDestabilize Warp CoreOverwhelm Power RegulatorsMixed Armaments Synergy

Ground Player only Chroniton JoltCrystalline SpikeDeploy Gravimetric TrapsJam Subspace TransmissionsMass Gravimetric DetonationOvercharge Turret FabricationPlasma Feedback CascadeSubspace RiftGenerate Solar GatewaySompek Lightning
See also Bridge officer abilityBridge Officer TrainerKitsPlayer abilitySingularity Core abilitiesCruiser commandsStarship Separation