Coal Generator

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Coal Generator
Coal Generator.png
Burns coal for electricity for your power grid.
Has an input so feeding coal can be automated.
Category Power
Subcategory Generators
Unlocks at Tier 3
Power Generated 50 MW
Fuel Coal, Compacted Coal
Overclockable Yes
Inputs 1
Outputs 0
Width 10m
Length 25m
Height 32m
Modular Frame.png
Resources breakdown [Expand]
3 × Modular Frame.png Modular Frame
9 × Reinforced Iron Plate.png Reinforced Iron Plate
36 × Iron Plate.png Iron Plate
72 × Iron Ingot.png Iron Ingot
72 × Iron Ore.png Iron Ore
216 × Screw.png Screw
36 × Iron Rod.png Iron Rod
36 × Iron Ingot.png Iron Ingot
36 × Iron Ore.png Iron Ore
18 × Iron Rod.png Iron Rod
18 × Iron Ingot.png Iron Ingot
18 × Iron Ore.png Iron Ore
5 × Rotor.png Rotor
110 × Screw.png Screw
19 × Iron Rod.png Iron Rod
19 × Iron Ingot.png Iron Ingot
19 × Iron Ore.png Iron Ore
15 × Iron Rod.png Iron Rod
15 × Iron Ingot.png Iron Ingot
15 × Iron Ore.png Iron Ore
15 × Cable.png Cable
30 × Wire.png Wire
10 × Copper Ingot.png Copper Ingot
10 × Copper Ore.png Copper Ore
Total Base Ingredients
160 × Iron Ore.png Iron Ore
10 × Copper Ore.png Copper Ore

The Coal Generator is a building that generates Power by using Coal.png Coal. It is the first fully automatable power source the player has access to and also the first power source to use a mined resource.

Fuel energy values[edit | edit source]

Energy is given in MJ. 1MJ provides 1 MW of power for 1 second or 50 MW of power (1 Coal Generator at 100% load) for 0.02 seconds.

Fuel Type Energy Stack Size Energy/Stack Burn time(sec) Burn time/stack (s) Burn time/stack (min)
Coal 270 100 27k 5.4 540 9
Compacted Coal 600 100 60k 12 1200 20

Generators per node[edit | edit source]

A single node can support the following number of coal generators operating at peak capacity:



Miner Coal Mined/Minute Number of

Coal Generator**

Total Power
Impure 30 2.7 100MW
Normal 60 5.4 250MW
Pure 120 10.8 500MW
Impure 60 5.4 250MW
Normal 120 10.8 500MW
Pure 240 21.6 1050MW
Impure 120 10.8 500MW
Normal 240 21.6 1050MW
Pure 480 43 2150MW

**The decimal in the Number of Coal Generator column means the last generator might not be able to run at 100%. Underclock the last generator to prevent power trip.

The equation is as follows:

Coal Mined Per Min\times Fuel Burn Time \over 60sec

For a coal generator that is not overclocked, its Fuel burn time is 5.4 seconds (displayed next to the stopwatch in the coal generator UI), i.e. it needs 100 / 9 = 11.11 coal/min

Fuel burn time and peak capacity[edit | edit source]

The real Fuel Burn Time with all generators depends on the amount of power actually being used. However, the UI does not show the real burn time, it shows the burn time if the generator is operating at peak capacity.

So, the 5.4 seconds burn time for Coal Generators shown in game is how long it takes to burn 1 Coal if all of the power that the generator can possibly produce is being used.

For example: if a base has 1 Coal Generator, and is using all of the possible 50 MW, the fuel burn time will be 5.4 seconds. But, if the base is only using 25 MW, the fuel burn time will be (supposedly) doubled. (More research needed on this).

Trivia[edit | edit source]

  • The Coal Generator, like all power generating buildings, behaves differently to other buildings when overclocked. See Clock Speed for more info.
  • The top part of the chimney is not inside the building collision box; it will stick through a foundation if the foundation is built 32meters above it.

See also[edit | edit source]