Cookie Usage Statistics Colour Key Sudden Death Monthly Poll Caption Comp eMail Author Shops
Ships Fleets Weaponry Species People Timelines Calculators Photo Galleries
Stations Design Lineage Size Charts Battles Science / Tech Temporal Styling Maps / Politics
Articles Reviews Lists Recreation Search Site Guide What's New Forum
Constitution Class Klingon Battlecruiser Klingon Bird of Prey Magazine Capacity NX Class Phase Cannon Sovereign Changes Star Trek : Discovery The Defiant The USS Franklin Borg History Money Monoculture Religion in Trek Technology Levels The Ba'Ku Land Grab Trills / Dax Abrams Speed! Antimatter Phasers Romulan Warp Drive The Holodeck Torpedo Yields Transwarp Theories Tri-cobalt device Warp in a Solar System Warp Speed Anomalies D'Deridex Class Weapons Galaxy Class Shields Galaxy Class Total Output Galaxy Class Weapon Output Genesis Weapon Power Husnock Weapons Intrepid Class Total Output TOS Type 2 Phaser Power Trilithium Torpedo Power Dangling Threads Enterprise Ramblings Eugenics War Dates Franz Joseph's Star Trek Here be Remans? Live fast... Write Badly Maps Materials Nemesis Script Random Musings Scaling Issues Size of the Federation Stardates The Ceti Alpha Conundrum The Size of Starfleet Trek XI Issues

Intrepid Class Total Output


In this episode, Ensign Kim and Seven of Nine are working in one of Voyagers conduits. The scene progresses as follows :

Seven : "The optical assembly is properly aligned. I am ready to access the main power supply."
Kim : "After you."
They climb down to a lower level. Seven opens a panel and begins to reach inside. Kim pulls her back hurriedly.
Kim : "Wait! What are you doing, there are five million gigawatts running through there!"
Seven : "The exoskeleton on this limb can withstand it."

At this point Voyager is proceeding on impulse, and is not using any high power systems. This gives us a minimum figure for Voyagers total power output of 5 x 103 TeraWatts.

Warp Speed / Power Usage

We are told in Caretaker that Voyager has a maximum sustainable cruise speed of Warp 9.975. On the Galaxy class starship total output calculations, I worked out how much power it takes to drive a GCS at various warp speeds. No solid figures are available for a velocity of warp 9.975, but at warp 9.9 a GCS consumes some 6 x 1020 Watts. Voyager masses 700,000 tons compared to the 5 million tons of the Galaxy class; we do not know how the mass of an object affects the power required to maintain a given speed, but to make a guestiumate I will assume it is a linear relationship. The power required for Voyager to maintain Warp 9.9 would be given by :

=(7 x 105/5 x 106) x 6 x 1020
 =0.14 x 6 x 1020
 =8.4 x 1019

Or 84 million TeraWatts. Given the way power requirements increase as one nears warp ten, it is likely that warp 9.975 requires at least a tenfold increase in power over warp 9.9. Therefore, Voyagers maximum power output is likely to be in the region of 108 TeraWatts or more.


The Revulsion dialogue is the only clear reference to Voyagers power output I've been able to find so far. Although it is far lower than the million-plus terawatt figures calculated for the Galaxy class, you wouldn't expect a starship travelling on impulse to be using maximum power. In addition, this figure is the power running through that particular conduit - which is not necessarily the whole of the main power output.

Calculatiuons based on warp speeds indicate that Voyager has a maximum output roughly equal to that of a Galaxy class, despite her much smaller size. This seems reasonable given that she is more advanced, and so much faster.

Colour key

Canon source Backstage source Novel source DITL speculation

© Graham & Ian Kennedy Page views : 46,368 Last updated : 17 Jan 2021