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| + | {{DisambigMsg|units of measurement|the vehicle nicknamed 'The Unit'|Truck}} |
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| − | This page is intended to cover various '''units''' of measurement used in [[Satisfactory]] as well as some derived units that are useful to know. |
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| + | This page covers various measurement '''units''' and derived units used in ''Satisfactory''. |
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| + | All units should follow [https://physics.nist.gov/cuu/Units/checklist.html SI unit styling guidelines]. More details about styling can be found in the [[Satisfactory Wiki:Style guide|style guide]]. |
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| − | ''This page is also a proposal during wiki population for a standardized set of units to use on pages. Please use the talk page to discuss the merits of whether or not this page should or should not exist or if different units exist.'' |
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| − | == Base |
+ | == Base units == |
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| + | The base unit of time is a second, or <code>s</code>. 60 seconds is one minute, 60 minutes is one hour, obviously. |
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| + | The duration of one day in ''Satisfactory'' is 50 minutes, consisting of a 45-min daytime and 5-min nighttime. |
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| − | The base unit for rates of items (either physical movement, production, or consumption) is items per minute. This may be shortened to items/min. |
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| + | Item transportation, production and consumption rate is measured in <code>items per minute</code> (items/min or ipm), also <code>parts per minute</code> (ppm). By default, per minute values are displayed in-game, except for fuel burn time in generators, where the burn duration of one item in seconds is shown instead. |
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| − | [[Conveyor Belt|Conveyor belts]] and [[Conveyor Lift|lifts]] are measured in these units which describe the capacity of a belt or lift at saturation. This does not describe the speed at which items move along the belt, though it should be proportional (given all items take up the same space on the belt). |
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| + | The game solely uses meters, <code>m</code>, to describe distance, with fractions of it being used in favor of decimeters, centimeters, etc. |
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| + | === Fluid volume === |
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| − | Power generators' consumption rates are measured in seconds/items. Generators that accept multiple fuels (all except [[Nuclear Power Plant|Nuclear]] and [[Geo Thermal Generator|Geothermal]]) have different consumption rates for different fuels. |
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| + | The volume of [[fluids]] is measured in cubic meters, <code>m{{Cubic}}</code>. Internally, liters are used instead, and to the player, 0.01 m{{Cubic}} is the smallest amount of fluid displayed (= 10 liters). |
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| + | === Fluid flow rate === |
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| − | Buildings that produce items, such as [[Miner (disambiguation)|miners]], or consume and produce items, such as [[Constructor|Constructors]], measure the inputs and outputs in items/min. Note that for a multi-input building like the [[Assembler]], the stated production rate will only be achieved if all inputs are provided at the stated (or higher) consumption rate. |
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| + | The flow rate of [[fluids]] is measured in cubic meters per minute, <code>{{m3pm}}</code>. Some buildings even indicate a direction, with positive values showing inflow and negative values for drainage. |
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| − | === |
+ | === Head lift === |
| + | [[Head lift]] is measured in unnamed units, where one unit of head lift equals 1 meter. It indicates how high a fluid can be pushed up without its flow rate being reduced below maximum, until stopping entirely. |
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| − | The amount of [[Fluids]] is measured by its volume in cubic meters or m³. The base unit for fluid throughput, production or consumption is m³/min. |
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| + | === Speed === |
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| − | Head Lift is another fluid-related unit, which sets how high can a fluid travel vertically in a [[Pipeline]]. It is measured in meters, where 1 m head lift equals a 1 meter vertical climb. [[Water Extractor]]s, [[Oil Extractor]]s and [[Refinery|Refineries]] output with 10 m head lift, and [[Pipeline Pump]]s reset the head lift to 20 m. Head lift does not stack, and such Pipeline Pumps have to be spaced out vertically every ~20 meters for maximum efficiency. |
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| + | [[Vehicle]] speed is measured in kilometers per hour, <code>km/h</code> or kph. This can be converted to meter/sec by dividing it by 3.6. |
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| − | === |
+ | === Power === |
| + | [[Power]], or rate of energy flow is measured in Megawatts, or <code>MW</code>, which is equal to 1,000,000 Watts. This unit is used to measure either [[building]]'s power production or consumption, as well as [[equipment]] or [[vehicle]]'s [[fuel]] burning rate. |
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| + | Larger amounts of power can be displayed with other prefixes, such as 1,000 MW = 1 GW, and 1 TW = 1,000 GW = 1,000,000 MW. The smallest amount of power both displayed and used in-game is 0.1 MW, which is how much all powered machines consume while their [[Indicator Light]] is red or yellow. |
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| − | The velocity of [[vehicles]] (i.e. a [[Tractor]] or [[Electric Locomotive]]) is measured in kilometers per hour (km/h or kph for short). |
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| − | === |
+ | === Fuel energy === |
| + | Every type [[fuels|fuel]] has a <code>MJ</code> value which determines how long it is burned in a generator or a vehicle. For example, one piece of [[Coal]] has 300 MJ, and one [[Coal Generator]] provides up to 75 MW at 100% clock speed. Generators scale their production based on how much power is being consumed, e.g. when that generator would be connected to a network where 25 MW is being consumed, it would burn three times as slow. One piece of Coal would, therefore, last for 300/25 = 12 seconds at this power usage. If power usage increased all the way to 75 MW (maximum capacity), it would last 300/75 = 4 seconds. Exceeding capacity causes a [[power trip]]. |
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| + | For fluid fuels, the MJ value is for one cubic meter. |
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| − | [[Power|Electricity]] in Satisfactory has no concept of voltage or current as in real electrical systems. Everything is measured in megawatts, or MW for short. This is a real-world unit of power equal to one million watts, also defined as one megajoule (MJ, a unit of energy) per second. |
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| − | Power generators will have a stated power production. For example, a [[Biomass Burner]] can produce up to 30 MW of power, while a [[Coal Generator]] can produce up to 75 MW of power (assuming their [[Clock speed|clock speed]] isn't altered). |
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| + | === Belt speed === |
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| + | Not to be confused with belt throughput, or item flow rate (see above). |
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| + | To measure belt speed, build a 48-meters long straight belt (six [[Foundations]]) and measure the time taken to transport the player from one end to the other. Divide the distance (48 m) by the time and you got the speed in meters per second, <code>m/s</code>. You can convert it into km/h by multiplying it by 3.6. |
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| + | Higher accuracy measurement can be achieved with longer belts, by chaining multiple belts in a straight line. |
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| ⚫ | |||
| + | === Crafting cycle energy === |
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| − | One can derive the velocity of items on a belt. The units for this are in meters per second (m/sec or m/s, though m/sec is preferred for clarity). A conveyor belt will have both a rating in terms of items/min and also a velocity in terms of m/sec. If all items take the same space on a belt, then these two units are proportional to each other. |
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| + | Similar to fuel energy, the <code>MJ</code> required to complete one crafting cycle or to produce one item of that crafting cycle can be calculated using <code>building power consumption * crafting cycle duration</code>, e.g. a building consuming 30 MW and completing one production cycle every five seconds consumes 150 MJ per crafting cycle, which equals to half of a piece of Coal being burned in a Coal Generator. If that crafting cycle yields 1 item, it cost 150 MJ, if two items 75 MJ, etc. |
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| + | Take note as idling buildings constantly consume 0.1 MW while not completing any crafting cycles. |
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| − | This can be measured in two ways. One way is to measure the time required for a single item to traverse a known distance. Taking the distance in meters and dividing by the time in seconds will give result in the velocity of items on the belt. |
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| − | '''Example:''' |
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| + | Power efficiency is measured in percentage <code>%</code>. It is calculated by dividing the net power by gross power. |
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| − | An item traverses 8 meters of a belt (two foundations length) in 6.67 seconds. |
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| + | The gross power is the total amount of power produced by a power generating setup. Net power is gross power minus the internal power consumption used to run the setup, which includes [[Miner]]s, [[Water Extractor]]s, [[Pipeline Pump]]s, etc. |
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| − | <var>8 / 6.67</var> |
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| + | {{PioneerNav}} |
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| − | This results in a measured velocity of '''1.20 m/sec'''. |
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| − | Another means of measuring the velocity of items on the belt is to count how many items fit on a saturated belt of a unit length (i.e. 1 meter). Given the known rate of item flow on the belt the velocity can be derived. |
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| − | <var>(distance / items) * (items / minute) / 60</var> |
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| − | |||
| − | '''Example:''' |
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| − | If 22 items fit on 24 meter of conveyor that runs at 60 items/minute then... |
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| − | <var>(24 / 22) * (60 / 60) = 24 / 22</var> |
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| − | The result is that an item traverses the conveyor at a velocity of '''1.09 meters per second'''. |
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| − | |||
| − | If the Mk 1 conveyor is swapped out for a Mk 2 conveyor, we recalculate for 120 items/minute: |
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| − | <var>(24 / 22) * (120 / 60) = 24 / 22 * 2</var> |
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| − | |||
| − | The result then becomes '''2.18 meters per second'''. |
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| − | |||
| − | Note, these two values were both calculated using the same formula. Using the number of items on a belt of a known length is not reliable due to how items overlap at the edges of a belt segment. If counting the number of items on a 24-meter segment of a belt, one might see 21 items, where counting the number of items on a 24-meter belt made up of three 8 meter segments may result in 22 items. Additionally, measuring the time required to traverse a known length is subject to human error (unless using video analysis in which case it can be somewhat accurate). The longer a belt is for both counting or timing items the more accurate the result is. |
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| − | |||
| − | === Production/Consumption Time === |
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| − | |||
| − | Production or consumption time is the inverse unit to item rates. Where item rates are measured in items/min, production or consumption time is measured in seconds per item. This can be shortened to sec/item or often just stated as sec (with an implied "per item"). Seconds can also be referred to as simply "s" as well, though sec would be preferred for clarity. This can be calculated from a stated item/min rate by dividing 60 by the rate. |
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| − | |||
| − | '''Example:''' |
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| − | A constructor producing iron rods operating at 100% produced 15 items/min. By dividing 60 by 15 one can determine that iron rods require '''4 sec''' to produce. |
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| − | Energy, both in the production of power and production of items can be measured in megajoules per item or MJ/item for short. The energy of one item may also be referred to simply as megajoules. As mentioned before, a watt is one joule/second and so a joule is equivalent to one watt-second (one watt consumed for one second). A megajoule is equal to 1,000,000 watt-seconds. |
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| − | |||
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| − | |||
| − | On the power production side of the equation, a [[Fuels|fuel]] will have an energy rating. This can be considered the specific energy of an item in Satisfactory. Where real-world specific energy would be measured in joules per unit mass, in this case, the unit mass is "1 item". This is not stated in-game but can be derived from known information. |
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| − | |||
| − | '''Example:''' |
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| − | A single item of [[Coal]] in a '''75MW''' Coal Generator can burn for '''4 sec'''. That means each coal has a fuel value of 75 * 4 MJ = '''300 MJ'''. |
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| − | '''Example 2:''' |
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| − | A single item of Coal last for '''4 sec'''. A [[Miner MK2|Miner Mk.2]] on a Pure [[Resource Node|Coal Node]] outputs item at '''240/min''', or 4/sec. Multiply both together, 4 sec * 4/sec = '''16''' |
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| − | |||
| − | In this case, a Miner Mk.2 can supply just enough coal to 16 Coal Generators. |
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| − | * Continue reading: [[Fuels]] (for energy values of each) |
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| − | |||
| − | ==== Item Production ==== |
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| − | When it comes to power consumption, each item output from a building will have an amount of energy associated with it. The lower the amount of energy per item produced, the more efficient the building. This energy per item produced can be derived by taking the power consumption of the building and multiplying it by the production time for the item. |
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| − | |||
| − | '''Example:''' |
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| − | A constructor producing iron rods operating at 100% produces a rod in 4 seconds. The building requires 4 MW to operate. This means that the iron rod requires 4 * 4 or '''16 MJ''' to produce. |
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| − | |||
| − | ==== Energy Efficiency ==== |
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| − | As hinted at in the item production section, the energy required to craft one item is a valuable unit for comparing energy efficiency. The [[Clock Speed|clock speed]] page describes the calculations for how much power a building requires. |
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| − | |||
| − | <var>(Power required multiplier) = (Clock speed / 100)<sup>1.6</sup></var> |
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| − | One can further derive from this formula the energy required for each item for a given clock rate. |
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| − | |||
| − | <var>(base seconds/item * 100 / clock speed) * power consumption * (clock speed / 100)<sup>1.6</sup></var> |
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| − | |||
| − | The components are expanded out... |
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| − | <var>base seconds/item * 100<sup>1</sup> * clock speed<sup>−1</sup> * power consumption * clock speed<sup>1.6</sup> * 100<sup>-1.6</sup></var> |
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| − | |||
| − | The clock speed exponents are combined... |
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| − | |||
| − | <var>base seconds/item * 100<sup>1</sup> * 100<sup>-1.6</sup> * power consumption * clock speed<sup>0.6</sup></var> |
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| − | |||
| − | The constants are combined... |
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| − | |||
| − | <var>base seconds/item * power consumption * (clock speed/100)<sup>0.6</sup></var> |
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| − | |||
| − | The resulting formula... |
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| − | |||
| − | <var>power consumption * base seconds/item * (clock speed/100)<sup>0.6</sup></var> |
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| − | |||
| − | Substituting in energy in place of MW * sec... |
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| − | <var>base energy/item / (clock speed/100)<sup>0.6</sup></var> |
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| − | '''Example:''' |
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| − | Using the above, a constructor making iron rods at 100% requires 16 MJ/item. If one were to overclock to 200%, plugging in the above formula with 16 MJ/item as a base and a clock speed of 200% you get |
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| − | |||
| − | <var>16 MJ/item * 2<sup>0.6</sup></var> |
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| − | <var>16 MJ/item * 1.51</var> |
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| − | The result is that at 200% overclock, each iron rod will require '''24.25 MJ''' of energy. |
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| − | |||
| − | Note: if the new production time of an item and the new power consumption of a building are already calculated, it is easier to then calculate the new energy per item by multiplying the two together. |
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| − | |||
| − | {{EngineerNav}} |
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[[Category:Gameplay mechanics]] |
[[Category:Gameplay mechanics]] |
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Revision as of 15:38, 23 April 2021
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This article is about units of measurement. For the vehicle nicknamed 'The Unit', see Truck. |
This page covers various measurement units and derived units used in Satisfactory.
All units should follow SI unit styling guidelines. More details about styling can be found in the style guide.
Base units
Time
The base unit of time is a second, or s. 60 seconds is one minute, 60 minutes is one hour, obviously.
The duration of one day in Satisfactory is 50 minutes, consisting of a 45-min daytime and 5-min nighttime.
Item throughput
Item transportation, production and consumption rate is measured in items per minute (items/min or ipm), also parts per minute (ppm). By default, per minute values are displayed in-game, except for fuel burn time in generators, where the burn duration of one item in seconds is shown instead.
Distance
The game solely uses meters, m, to describe distance, with fractions of it being used in favor of decimeters, centimeters, etc.
Fluid volume
The volume of fluids is measured in cubic meters, m3. Internally, liters are used instead, and to the player, 0.01 m3 is the smallest amount of fluid displayed (= 10 liters).
Fluid flow rate
The flow rate of fluids is measured in cubic meters per minute, m3/min. Some buildings even indicate a direction, with positive values showing inflow and negative values for drainage.
Head lift
Head lift is measured in unnamed units, where one unit of head lift equals 1 meter. It indicates how high a fluid can be pushed up without its flow rate being reduced below maximum, until stopping entirely.
Speed
Vehicle speed is measured in kilometers per hour, km/h or kph. This can be converted to meter/sec by dividing it by 3.6.
Power
Power, or rate of energy flow is measured in Megawatts, or MW, which is equal to 1,000,000 Watts. This unit is used to measure either building's power production or consumption, as well as equipment or vehicle's fuel burning rate.
Larger amounts of power can be displayed with other prefixes, such as 1,000 MW = 1 GW, and 1 TW = 1,000 GW = 1,000,000 MW. The smallest amount of power both displayed and used in-game is 0.1 MW, which is how much all powered machines consume while their Indicator Light is red or yellow.
Fuel energy
Every type fuel has a MJ value which determines how long it is burned in a generator or a vehicle. For example, one piece of Coal has 300 MJ, and one Coal Generator provides up to 75 MW at 100% clock speed. Generators scale their production based on how much power is being consumed, e.g. when that generator would be connected to a network where 25 MW is being consumed, it would burn three times as slow. One piece of Coal would, therefore, last for 300/25 = 12 seconds at this power usage. If power usage increased all the way to 75 MW (maximum capacity), it would last 300/75 = 4 seconds. Exceeding capacity causes a power trip.
For fluid fuels, the MJ value is for one cubic meter.
Derived units
Belt speed
Not to be confused with belt throughput, or item flow rate (see above).
To measure belt speed, build a 48-meters long straight belt (six Foundations) and measure the time taken to transport the player from one end to the other. Divide the distance (48 m) by the time and you got the speed in meters per second, m/s. You can convert it into km/h by multiplying it by 3.6.
Higher accuracy measurement can be achieved with longer belts, by chaining multiple belts in a straight line.
Crafting cycle energy
Similar to fuel energy, the MJ required to complete one crafting cycle or to produce one item of that crafting cycle can be calculated using building power consumption * crafting cycle duration, e.g. a building consuming 30 MW and completing one production cycle every five seconds consumes 150 MJ per crafting cycle, which equals to half of a piece of Coal being burned in a Coal Generator. If that crafting cycle yields 1 item, it cost 150 MJ, if two items 75 MJ, etc.
Take note as idling buildings constantly consume 0.1 MW while not completing any crafting cycles.
Power efficiency
Power efficiency is measured in percentage %. It is calculated by dividing the net power by gross power.
The gross power is the total amount of power produced by a power generating setup. Net power is gross power minus the internal power consumption used to run the setup, which includes Miners, Water Extractors, Pipeline Pumps, etc.
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