Coal Generator

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Coal Generator
Coal Generator.png
Burns Coal to boil Water, the produced steam rotates turbines to generate electricity for the power grid.
Has a Conveyor Belt and Pipe input, so both the Coal and Water supply can be automated.
Resource consumption will automatically be lowered to meet power demands.
Unlocked at Tier 3 - Coal Power
Category Power
Subcategory Generators
Power Generated 75 MW
Fuel Coal, Compacted Coal, Petroleum Coke
Overclockable Yes
Inputs
  • 1 Pipeline
  • 1 Conveyor
Dimensions
Width 10 m
Length 26 m
Height 36 m
Required Items
Reinforced Iron Plate.png
20
Rotor.png
10
Cable.png
30

The Coal Generator is a building that generates Power using  Coal and  Water. It is the first fully automate-able power source the engineer has access to and also the first power source to use a mined resource.

Fuel consumption[edit | edit source]

All type of Fuels and Water consumption are proportionally reduced when the Power usage is not at 100%. For instance, if only half of the power is being used, then both the Fuel and Water last 2x as long. At 100% power usage and 100% Clock speed, the Water consumption rate is 45 m3/min regardless the type of fuel provided. The following types of fuels are accepted:

Fuel Type Energy (MJ) Stack Size Energy/Stack (MJ) Burn time (sec) Items per Minute
 Coal 300 100 30,000 4 15
 Compacted Coal 630 100 63,000 8.4 7.143
 Petroleum Coke 180 200 36,000 2.4 25

Generators per Coal node[edit | edit source]

A 100% Miner on a Coal node can support the following number of Coal Generators operating at 100% power usage (decimal amounts of machines means that the last machine needs to be underclocked for maximum efficiency):

Miner Node
purity
Coal/min Water
Extractors
(@ 100%)
Water
Extractors
(@ 75%)
Water m3/min No. of
Coal Generators
Gross Power Net Power
Mk.1 Impure 30 0.75 1 90 2 150 MW 130 MW
Normal 60 1.5 2 180 4 300 MW 265 MW
Pure 120 3 4 360 8 600 MW 535 MW
Mk.2 Impure 60 1.5 2 180 4 300 MW 258 MW
Normal 120 3 4 360 8 600 MW 528 MW
Pure 240 6 8 720 16 1200 MW 1068 MW
Mk.3 Impure 120 3 4 360 8 600 MW 510 MW
Normal 240 6 8 720 16 1200 MW 1050 MW
Pure 480 12 16 1440 32 2400 MW 2130 MW

A 250% Miner on a Coal node can support the following number of Coal Generators operating at 100% power usage (decimal amounts of machines means that the last machine needs to be underclocked for maximum efficiency):

Miner Node
purity
Coal/min Water
Extractors
(@ 100%)
Water
Extractors
(@ 75%)
Water m3/min No. of
Coal Generators
Gross Power Net Power
Mk.1 Impure 75 1.875 2.5 225 5 375 MW 315.8 MW
Normal 150 3.75 5 450 10 750 MW 653.3 MW
Pure 300 7.5 10 900 20 1500 MW 1328.3 MW
Mk.2 Impure 150 3.75 5 450 10 750 MW 623 MW
Normal 300 7.5 10 900 20 1500 MW 1298 MW
Pure 600 15 20 1800 40 3000 MW 2648 MW
Mk.3 Impure 300 7.5 10 900 20 1500 MW 1220 MW
Normal 600 15 20 1800 40 3000 MW 2570 MW
Pure 780 1200 19.5 26 2340 52 3900 MW 3380 MW

Use the following equations:
Number of Coal Generators required:
Coal generator = Coal mining rate / 15
Number of Water Extractors required:
Water extractor = Coal generator / 2.6666
Spread out the water supply across multiple pipelines as following:
Pipelines required = Coal generator / 6.6666

  • Coal burn time is 4 seconds, which means that a single Coal Generator consumes 15 Coal/min.
  • Pipelines only have a capacity of 300 m3/min. Thus, when connecting Water Extractors to a line feeding 7 or more Coal Generators, Water inputs either need to be spaced out or be separated.
    • Alternatively, underclock Water Extractors to 75% and connect each of them to exactly 2 Coal Generators. That way, the amount of Water Extractors is half the amount of Coal Generators.
    • Using Water Extractors underclocked to 75% require an additional extractor for every 8 Coal Generators, trading space for ratio simplicity. For 8 Coal Generators you either need 3 Water Extractors at 100% (3*20 = 60MW) or 4 Water Extractors at 75% (12.6 * 4 = 50.4MW). This can be useful early on when you still need to save up on energy consumption on Water Extractors.
    • A Water Extractor has about the same width as 2 Coal Generators so it would be easier to tile the layout.
  • A Miner Mk.3 on a pure Coal node should only be overclocked to 163%, as due to the throughput limit of Mk.5 conveyors.
  • As the Miner and Water Extractors consume power, the net power capacity is less.
    • Water Extractors use about 10% of the gross Power generated. After subtracting 10% from the gross Power, subtract the Power consumption from the Miners, Pipeline Pumps, vehicles, etc. to calculate the net Power produced.

Generators fueled by Compacted Coal[edit | edit source]

This is a simplified version of the table above that does the same calculations for Compacted Coal as input, so only 7.143 items per minute instead of 15 are needed.

Each Assembler operates at 25 parts per minute.

Coal and Sulfur/min No. of

Assemblers (@100%)

Comp. Coal/min Water Extractors

(@100%)

No. of

Coal Generators

Total Power
60 2.4 60 3.15 8.4 630 MW
120 4.8 120 6.3 16.8 1260 MW
240 9.6 240 12.6 33.6 2520 MW
480 19.2 480 25.2 67.2 5040 MW
780 31.2 780 40.95 109.2 8190 MW

Overclocking the generator[edit | edit source]

  • The Coal Generator, like all power generation buildings, behaves differently to power consumer buildings when overclocked. See Clock Speed for more info.
  • As the fuel & Water consumption rate are directly proportional to the Power production of Coal Generators (similar also applies to all Power generators), it is not advised to overclock any of these generators. It is just a waste of Power Shards.

Coal power setup tutorial[edit | edit source]

See the pages below for guides. The guide is written based on Rocky Desert starting area, but can also be applicable for other area with 4 Coal nodes and with Water nearby.

See also[edit | edit source]

Gallery[edit | edit source]

History[edit | edit source]

  • Patch 0.3: Now requires Water to operate, appearance changed accordingly to include a Pipeline input. The chimney is now fully within the hitbox.