|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|
|Power Generated||75 MW|
|Fuel||Coal, Compacted Coal, Petroleum Coke|
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|
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):
|Water m3/min||No. of
|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):
|Water m3/min||No. of
|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|
||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.
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
|Comp. Coal/min||Water Extractors
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 also[edit | edit source]
- Water Extractor
- Biomass Burner
- Fuel Generator
- Geo Thermal Generator
- Nuclear Power Plant
- Compacted Coal
- Petroleum Coke
Gallery[edit | edit source]
The flow rate analysis of the previous diagram, which is a pipe header design. Take note no segment of the pipe contains more than 300 m3/min of flow.
Top view of 3 Extractors to 8 Generators setup, using a common pipeline and 2 Mk.1 belts, each feed into 4 generators. The 2 Mk.1 belts can be merged to a single Mk.2 belt.
A few more Coal Generators, built in double manifold style.
Coal Generators built above Water Extractors. Each row has 9 Generators, fed by 2 vertical pipes in groups of 4. Two vertical pipes are combined at the bottom fed by 3 Extractors. The 9th generator has its own individual pipe and Extractor.
Coal running into a Coal Generator in a pre-alpha build of the game.
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.