Thermal Power Plant

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Thermal Power Station
Power Facility
Facility that use combustible materials (such as coal) as fuel to generate electrical energy. Between the energy output and the calorific value of the consumed fuels has energy efficiency.
Icon Thermal Power Plant.png
Energy TypeThermal
Power2.16 MW
Energy Efficiency80%
Made InAssembler
Stack Size50

Icon Thermal Power Plant.png
5 s
Icon Iron Ingot.png
Icon Stone Brick.png
Icon Gear.png
Icon Magnetic Coil.png


Thermal Generators are a descendant of the old 20th century powerplants. Burning fossil fuels heats and boils water into steam, which spins generator turbines. Modern Advancements have allowed the water to be recycled, and more energy to be captured from the combustion process. Even with modern improvements, these generators still suffer from an 20% efficiency loss, reducing the amount of energy captured from fuel. Even with the efficiency loss, thermal generators are very compact, allowing only a few of them to power large factories. In the same space that 2 wind turbines take up, Thermal Generators produce over three times the power. They also run full time, unlike solar panels which are restricted to daytime operations.

Production Chain

Recipe Building Replicator? Technology
Icon Thermal Power Plant.png
5 s
Icon Iron Ingot.png
Icon Stone Brick.png
Icon Gear.png
Icon Magnetic Coil.png
Icon Assembling Machine Mk.I.pngIcon Assembling Machine Mk.II.pngIcon Assembling Machine Mk.III.png
Tech Thermal Power.png
Component Time Sub componet 1 Sub componet 2
1x Icon Iron Ingot.png 1 sec 1x Icon Iron Ore.png
1x Icon Stone Brick.png 1 sec 1x Icon Stone.png
1x Icon Gear.png 1.5 sec 1x Icon Iron Ingot.png
2x Icon Magnetic Coil.png 2 sec 2x Icon Magnet.png 1x Icon Copper Ingot.png

Total Raw Materials

Item Used for
16x Icon Iron Ore.png Icon Iron Ingot.png Icon Gear.png Icon Magnetic Coil.png
4x Icon Stone.png Icon Stone Brick.png
2x Icon Copper Ore.png Icon Magnetic Coil.png

Player Tips & Tricks

Burn Rates

The duration a piece of fuel will last is based on its MJ value. Thermal generators suffer a 20% loss due to inefficiency. To calculate how long a Fuel unit will last, multiply the MJ rating by 80% (or 0.8), then divide it by the 2.16MW that the generator produces per second. The resulting number will be how long one unit of that fuel will last.
Example 1: Coal has a energy density of 2.7MJ. take away the efficiency loss (2.7 * 0.8) and you are left with 2.16MJ. Divide that by the thermal generators max production (2.16MJ / 2.16MW) and you get that one piece of coal will burn for one second at full use.
Example 2: Hydrogen Fuel Rods has a energy density of 40MJ. take away the efficiency loss (40MJ * 0.8) and you are left with 32MJ. Divide that by the thermal generators max production (32MJ / 2.16MW) and you get that one Fuel Rod will burn for 14.8 seconds at full use. Or 20.25/min (for Hydrogen destruction)

Fuel burn times at 100% load
Fuel Energy 80% in TPS Burn time
Plants 500 KJ 400 KJ 0.185 s / 27 every   5 s / 324 per min
Wood 1.5 MJ 1.2 MJ 0.555 s /   9 every   5 s / 108 per min
Coal 2.7 MJ 2.16 MJ 1.000 s /   1 every   1 s / 60 per min
Energetic Graphite 6.75 MJ 5.4 MJ 2.500 s /   2 every   5 s / 24 per min
Crude Oil 4.05 MJ 3.24 MJ 1.500 s /   2 every   3 s / 40 per min
Refined Oil 4.5 MJ 3.6 MJ 1.667 s /   3 every   5 s / 36 per min
Hydrogen & Deuterium 9 MJ 7.2 MJ 3.333 s /   3 every 10 s / 18 per min
Fire Ice 4.8 MJ 3.84 MJ 1.777 s /   9 every 16 s / 33.75 per min
Hydrogen fuel rod 54 MJ 43.2 MJ 20.00 s /   1 every 20 s / 3 per min

Note that fuel is consumed at the rate of power draw. Thermal Power Plants will burn fuel at the maximum burn time (listed above) when the Satisfaction is below 100%, and fuel will be consumed at a slower burn time when the Satisfaction is at a constant 100%.

Fuel Production Costs

Since fuel production has its own energy cost, dedicated power production should take into account whether denser crafted fuels are a net gain over the components to make them.
Example 1: Coal has an energy density of 2.7MJ. Coal can be smelted into Energetic Graphite at a 2:1 ratio, which has an energy density of 6.3MJ, 16% more joules. However, smelting Energetic Graphite requires 720 kJ, and the sorters to access the smelter adds ~36 kJ. This leaves a mere 5.6kJ over coal when processed, while increasing the overhead usage. Which requires more thermal generators for the same available wattage.


Thermal Power Plants can be chained together by placing them next to each other and using a sorter to move fuel from one Plant to the next. Using chaining can help minimize the number of belts and the total ground space needed for a generator farm.

Mixed Fuel Types

A single Thermal Power Plant can take and use different types of fuel. The power output will remain constant (up to 2.16MW), but the burn time of the fuel will vary depending on its energy content. Note that when Plants are chained, only the fuel type picked up by the first one in the chain can be passed along to others in the chain; the first one acts as a filter.