Steam Dynamo


Steam dynamo

A steam dynamo is a dynamo fueled by water and solid fuel.

Obtaining

A placed steam dynamo can be instantly picked up by dismantling it with a wrench. Its configuration is preserved in the item. It can also be mined using a pickaxe, though this can be much slower.

Crafting

Upgrading

A steam dynamo is initially at the lowest tier (basic). It can be upgraded to higher tiers using upgrade kits and conversion kits.

Usage

Placement

When placed, a steam dynamo faces up. When placed while sneaking, it faces away from the player. A steam dynamo can face any direction, and can be rotated using a wrench.

Energy generation

A steam dynamo has a fuel slot and a water tank. When fuel is placed in its fuel slot and the tank is filled with water, the dynamo will start consuming both to generate Redstone Flux. Every unit of fuel yields a certain amount of energy when consumed. Water is consumed in batches of 100 mB to generate 25,000 RF at a time.

The speed at which energy is generated and fuel is consumed depends on how much power can be emitted, and on the dynamo’s maximum power output. A basic steam dynamo has a maximum power output of 40 RF/t. This can be increased by upgrading the dynamo to a higher tier, and by installing certain augments.

When an active steam dynamo cannot emit the energy it generates, it will keep working at its minimum power output (a tenth of its maximum power output). Any more energy that is generated in this case is lost. This can be resolved by installing an excitation field limiter.

Input and output

A steam dynamo emits Redstone Flux from its coil, which points in the direction the dynamo is facing. It only emits energy when it is active. Fuel and water can enter a steam dynamo through its sides. They cannot enter it through the coil, unless transmission coil ducting is installed.

Redstone control

A steam dynamo may be configured to respond to redstone signals. It can be in one of three modes:

Ignored
Redstone control is disabled. The dynamo works whenever possible. This is the default mode.
Low
The dynamo works when not powered. When powered, it stops working.
High
The dynamo only works when powered.

The current mode can be set using the Redstone Control tab in the dynamo’s GUI.

When a steam dynamo is deactivated by a redstone signal and is still generating energy from a consumed unit of fuel, it will finish generating energy from that unit of fuel first.

Security

A steam dynamo can have a signalum security lock installed to restrict who can access it.

Redprints

A steam dynamo’s configuration can be saved on a redprint to be copied to other dynamos.

Light source

When a steam dynamo that produces Redstone Flux is active, it emits a light level of 7.

Tiers

Steam dynamos come in six tiers.

TierMax. power outputAugment slots
Basic40 RF/t0
Hardened60 RF/t1
Reinforced80 RF/t2
Signalum100 RF/t3
Resonant / Creative120 RF/t4

Augmentation

A steam dynamo can have augments installed to improve certain properties or to change how it works. The amount of augments that can be installed depends on the dynamo’s tier. A basic steam dynamo cannot be augmented.

Augments can be installed in the Augmentation tab in a steam dynamo’s GUI.

AugmentInstallable inDescription
Auxiliary Transmission CoilAuxiliary Transmission CoilAny dynamoIncreases a dynamo's maximum power output (speed). Can be installed multiple times.
Fuel CatalyzerFuel CatalyzerAny dynamoIncreases the amount of energy a dynamo generates from each unit of fuel. Can be installed multiple times.
Transmission Coil DuctingTransmission Coil DuctingAny dynamoAllows items and fluids to enter a dynamo through its coil, which can normally only emit energy.
Excitation Field LimiterExcitation Field LimiterAny dynamoLowers the minimum power output of a dynamo to zero, preventing energy loss when it is active and cannot emit the energy it generates.
Boiler ConversionBoiler ConversionSteam Dynamo or
Magmatic Dynamo or
Compression Dynamo
A specialization that changes an applicable dynamo to convert water into steam instead of generating Redstone Flux. This increases fuel efficiency.
Turbine ConversionTurbine ConversionSteam DynamoA specialization that changes a steam dynamo to work on steam supplied from an external source.

Fuels

A steam dynamo accepts all items that can be used as fuel in a furnace, except for those that leave items in a furnace’s fuel slot after being consumed, like lava buckets.

FuelEnergy per unit
Coal24,000 RF
Block of Coal240,000 RF
Pulverized Coal24,000 RF
Charcoal16,000 RF
Block of Charcoal160,000 RF
Pulverized Charcoal16,000 RF
Coal Coke40,000 RF
Block of Coal Coke400,000 RF
Any other furnace fuel*(Burn time in ticks × 10) RF

*: Items with very short burn times (less than 300 ticks) cannot be used as fuel.

Thermal Expansion (Minecraft 1.12)
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Dynamos
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Last updated: 2026-10-20 21:05:17 +0000