Coal-Powered Generator
- Generators
- 1
- Gross MW
- 75 MW
- Fuel / min
- 15 items
- Water / min
- 45 m³ · 1 extractor
- Headroom · Before plant operating loads
- 63% · 29 MW
Satisfactory Power Calculator
Add your listed machines and clock speeds to calculate load, or enter a known MW target to plan generator capacity, fuel and water.
Factory loadPower plantsFuel → MWOverclock
Listed machines, without Somersloops. Add unlisted or additional amplified demand through Extra load in Buildings mode; use the Somersloop calculator for amplification.
Buildings
6
Listed machine load
46.0 MW
MW
16.0
MW
30.0
Power plant for this load
Compare generator capacity at 100% clock. Add a reserve for expansion.
Extra load adds to the listed machine load. Include unlisted demand and only the additional power for Somersloop amplification.
Gross output and headroom are before plant operating loads. Mining, Water Extractors, fuel production and pumps are not added automatically; include each once in your load.
Nuclear Power Plant
- Generators
- 1
- Gross MW
- 2,500 MW
- Fuel / min
- 0.2 items
- Water / min
- 240 m³ · 2 extractors
- Headroom · Before plant operating loads
- 5,334.8% · 2,454 MW
Fuel-Powered Generator
- Generators
- 1
- Gross MW
- 250 MW
- Fuel / min
- 20 m³
- Water / min
- 0 m³ · 0 extractors
- Headroom · Before plant operating loads
- 443.5% · 204 MW
Biomass Burner
- Generators
- 2
- Gross MW
- 60 MW
- Fuel / min
- 8 items
- Water / min
- 0 m³ · 0 extractors
- Headroom · Before plant operating loads
- 30.4% · 14 MW
Each option sizes gross capacity for the selected load and reserve. Headroom is spare MW divided by that load, after rounding up generators. Fuel and water cover full output; Biomass Burners use less fuel when demand is lower.
Water Extractors run at 100% (120 m³/min each). Gross MW is before extraction, fuel production and pumps; include those in your load. Nuclear waste handling needs a separate plan.
Geothermal is node-bound and its output fluctuates. Treat it separately when sizing a reliable supply for this load.
These plans keep generators at 100%. For other clocks, see generator overclocking: output and fuel use scale linearly, unlike production-machine power.
Game data v1.2.3.1 (exported 2026-06-25) · computed 2026-10-29 · Method
I have fuel — how much power?
Enter fuel per minute to find the whole generators it can keep running at 100%.
18 generators at 100% → 1,350 MW gross
Water: 810 m³/min · 7 Water Extractors.
Fuel used: 270 items/min · Left over: 0 items/min.
Gross output excludes mining, extraction, fuel production and pump power. For water distribution, see the coal and water setup; check pipe capacity and lift for your layout.
270 coal/min: how many generators?
270 Coal/min ÷ 15 per generator feeds 18 Coal-Powered Generators at 100% clock, producing 1,350 MW gross. They need 18 × 45 = 810 m³ water/min, so use 7 Water Extractors at 100% and split the flow across pipe runs within their capacity. Follow the coal and water setup for distribution and extractor connections. Allow extra power for mining, extraction and pumps.
Gross generator capacity for common loads
Whole generators at 100% clock, with no added reserve. Output is gross; mining, extraction, fuel production and pump loads are excluded unless included in the stated load. Each cell stacks generator count, fuel/min, water/min and Water Extractors. Nuclear uses Uranium Fuel Rods; Turbofuel uses Fuel-Powered Generators.
Game data v1.2.3.1 (exported 2026-06-25) · computed 2026-10-29
Scroll the comparison sideways to see all four options. Fuel and water are full-output requirements; MW is gross, before the plant's own running costs.
| Factory load | Coal | Fuel | Nuclear | Turbofuel |
|---|---|---|---|---|
| 100 MW | 2 generators150 MW gross30 items/min fuel90 m³/min water1 extractor | 1 generator250 MW gross20 m³/min fuel0 m³/min water0 extractors | 1 generator2,500 MW gross0.2 items/min fuel240 m³/min water2 extractors | 1 generator250 MW gross7.5 m³/min fuel0 m³/min water0 extractors |
| 250 MW | 4 generators300 MW gross60 items/min fuel180 m³/min water2 extractors | 1 generator250 MW gross20 m³/min fuel0 m³/min water0 extractors | 1 generator2,500 MW gross0.2 items/min fuel240 m³/min water2 extractors | 1 generator250 MW gross7.5 m³/min fuel0 m³/min water0 extractors |
| 500 MW | 7 generators525 MW gross105 items/min fuel315 m³/min water3 extractors | 2 generators500 MW gross40 m³/min fuel0 m³/min water0 extractors | 1 generator2,500 MW gross0.2 items/min fuel240 m³/min water2 extractors | 2 generators500 MW gross15 m³/min fuel0 m³/min water0 extractors |
| 1,000 MW | 14 generators1,050 MW gross210 items/min fuel630 m³/min water6 extractors | 4 generators1,000 MW gross80 m³/min fuel0 m³/min water0 extractors | 1 generator2,500 MW gross0.2 items/min fuel240 m³/min water2 extractors | 4 generators1,000 MW gross30 m³/min fuel0 m³/min water0 extractors |
| 2,500 MW | 34 generators2,550 MW gross510 items/min fuel1,530 m³/min water13 extractors | 10 generators2,500 MW gross200 m³/min fuel0 m³/min water0 extractors | 1 generator2,500 MW gross0.2 items/min fuel240 m³/min water2 extractors | 10 generators2,500 MW gross75 m³/min fuel0 m³/min water0 extractors |
| 5,000 MW | 67 generators5,025 MW gross1,005 items/min fuel3,015 m³/min water26 extractors | 20 generators5,000 MW gross400 m³/min fuel0 m³/min water0 extractors | 2 generators5,000 MW gross0.4 items/min fuel480 m³/min water4 extractors | 20 generators5,000 MW gross150 m³/min fuel0 m³/min water0 extractors |
Sizing your power grid
In Buildings mode, add the listed machines you expect to run together and any Extra load. Known MW target mode replaces both with your entered target, so it never adds the example buildings or saved Extra load. The planner adds your reserve percentage, divides by each generator's output and rounds up. Actual headroom before plant operating loads is (gross installed MW − load MW) ÷ load MW × 100, so rounding can give more than the requested reserve.
Fuel and water demand use the installed whole-generator count. Water Extractors = water/min ÷ 120, rounded up at 100% clock; the rate comes from the Water Extractor reference. Include extractors, fuel-making buildings and powered pumps in your load; generator MW here is gross. Check pipe capacity and lift when laying out water supply, and plan nuclear waste handling separately.
Machine clocks use base MW × (clock / 100)1.321929, with the game export's six-decimal exponent. The building total models listed machines without Somersloops. Add Converter, Particle Accelerator and Quantum Encoder demand through Extra load. For a listed machine with amplification, add only the difference between its amplified draw and the already-counted draw; use the Somersloop calculator to find amplified demand. The reverse tool rounds down to whole generators at 100% and reports unused fuel.
For per-generator burn rates, fuel comparisons and supply-chain details, see the power generators and fuel guide. Use the fuel calculator for Fuel Generator consumption, buffer time and power per crude oil, or the overclock calculator to tune production-machine power. For generator clocks, read the generator-overclocking explanation; output and fuel use scale linearly. These plant plans remain at 100%.
Building power reference
Assembler15 MW
Blender75 MW
Constructor4 MW
Foundry16 MW
Manufacturer55 MW
Miner Mk.15 MW
Miner Mk.215 MW
Miner Mk.345 MW
Oil Extractor40 MW
Packager10 MW
Refinery30 MW
Resource Well Pressurizer150 MW
Smelter4 MW
Water Extractor20 MW
Values at 100% clock without Somersloops, from the official game data. Converter, Particle Accelerator and Quantum Encoder use variable power and are not listed; include their demand through Extra load.
Power calculator FAQ
How do I calculate total power usage in Satisfactory?
For listed machines without Somersloops, add base power × (clock percentage / 100)^1.321929 × count. Use Extra load in Buildings mode for unlisted demand, including Converter, Particle Accelerator and Quantum Encoder. If an amplified machine is already listed, add only its extra Somersloop power; the Somersloop calculator gives its amplified draw. Known MW target mode replaces both the building total and Extra load.
How much power does a Constructor use?
Without Somersloops, a Constructor uses 4 MW at 100% clock, an Assembler 15 MW, a Manufacturer 55 MW, a Smelter 4 MW, a Foundry 16 MW, and a Refinery 30 MW.
How many coal generators do I need?
Divide your target MW by 75 and round up for generators at 100% clock. Multiply the count by 15 for Coal items/min. For 1,350 MW gross, 18 generators need 270 Coal/min. Include plant operating loads and the desired reserve before rounding; generator output is gross.
How much water does a coal generator use?
One Coal-Powered Generator needs 45 m³ of water per minute at 100% clock. Multiply by your generator count, then divide by 120 and round up for Water Extractors at 100%. For 18 generators, supply 810 m³/min with 7 extractors, and split the supply into pipe runs that each stay within their flow capacity. The coal and water setup in the power generators and fuel guide explains distribution.
How do I calculate power with overclocking?
For production buildings, power = base MW × (clock percentage / 100)^1.321929 × building count. A 4 MW Constructor at 200% uses about 10 MW. This calculator accepts machine clocks from 1% to 250%; the plant plans use generators at 100%. Generator output and fuel consumption scale linearly with clock speed; see the generator-overclocking explanation in the power generators and fuel guide for other clocks.