MJ
Minecraft Joules (MJ) are the energy units of all BuildCraft Engines and Machines. This is a list for reference about the MJ production and consumption of the different Engines and Machines.
Engines
| Engines | Max Energy (MJ) | Energy Generated | Max Input (MJ) | Max Output (MJ) | Piston Speed/Ticks to Extract | |||
|---|---|---|---|---|---|---|---|---|
| Blue | Green | Yellow | Red | |||||
 Redstone
|
1000 | 1 MJ/s | 50 | 1 | 0.01 | 0.02 | 0.04 | 0.08 |
| 102 | 52 | 26 | 14 | |||||
| File:Grid Steam Engine.png Steam | 10000 | 1 MJ/t | 200 | 100 | 0.02 | 0.04 | 0.08 | 0.16 |
| 52 | 26 | 14 | 8 | |||||
| File:Grid Combustion Engine.png Combustion | 100000 | 1,2, or 5 MJ/t (lava, oil, and fuel respectively) | 2000 | 500 | 0.04 | 0.05 | 0.06 | 0.07 |
| 26 | 24 | 18 | 16 | |||||
Conductive Pipes
| Conductive Pipes | Max Input (MJ) | Max Energy Stored (MJ) | Latency (ticks) | Power Loss (per pipe) (MJ) |
|---|---|---|---|---|
| Wooden | 1000 | 1000 | 50 | 0.01 |
| Stone | 1000 from each connected pipe | N/A | N/A | 0.01 |
| Cobblestone | 1000 from each connected pipe | N/A | N/A | 0.01 |
| Gold | 1000 from each connected pipe | N/A | N/A | 0.001 |
Data for pipe capacity is currently incomplete.
Machines
| Machine | Internal Energy Storage (MJ) | Min Input (MJ/t) | Max Input (MJ/t) | Min Activation Energy (MJ) | Min Time between Actions | Energy per Action (MJ) | |
|---|---|---|---|---|---|---|---|
| File:Grid Pump (BC).png Pump | 100 | 1 | 1 | 10 | 20 | 10 | |
| File:Grid Builder.png Builder | 25 | 2.5 | 2.5 | 25 | 10 | 25 | |
| File:Grid Filler.png Filler | 100 | 2.5 | 10 | 25 | 10 | 25 | |
| File:Grid Mining Well.png Mining Well | 1000 | 2.5 | 2.5 | 25 | 50 | 25 | |
| File:Grid Oil Refinery.png Refinery | 1000 | 2.5 | 2.5 | 25 | 1 | 10 | |
 Quarry (Build Phase)
|
7000 | 2.5 | 2.5 | 25 | 20 | 25 | |
| Quarry (Dig Phase)
|
7000 | 3 | 20 | 50 | 1 | 2-9 |
Filler
The filler has a 40% chance of not placing a block but still using the energy it would have.
Quarry
The quarry's mechanical arm moves at a speed dependent on how much energy it is able to draw from the internal storage. The exact formula for calculating movement speed is 0.015 + Energy Per Action / 200, meaning it will move at a minimum of 0.015 meters per tick, to a max of 0.015 + 9/200 = 0.06 meters per tick. In comparison, this is approximately the same speed as sneaking.
While digging, the quarry tries to perform an action every tick, which is why the energy per action is lower than other machines.
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