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Steam Turbine

The Steam Turbine can now be built lying on its side as well as standing up. Build the same 7x7 shell along the East/West or North/South axis instead of straight up, and it works exactly the same way - pipe in steam, collect rotational force from the end of the rotor column.

Firebox Boiler

Added the Firebox Boiler, a cheap early-game way to make Steam. Craft it with iron, a furnace, and a bucket, feed it any furnace fuel, and pipe water in to get Steam out - no Salt or Solar Power Tower required. It's much weaker per block than a fully built Solar Power Tower, so it's meant to get a Steam Turbine running early rather than replace the tower later on.

Solar Mirrors

Solar Mirrors have been reworked into a proper heliostat field. Instead of bolting onto the tower's walls, place them on the ground nearby and they'll link to a Solar Power Tower automatically, as long as they have open sky above them and a clear view of it. Linked mirrors turn and tilt throughout the day to track the sun and reflect it toward the tower - taller towers can reach farther and track more mirrors at once. A tower can now track up to 128 mirrors at once (up from 64), and Solar Mirrors cost a bit more to craft to match - 2 Redstone Dust alongside their existing materials.

QoL

• The Solar Heater's JEI page now also shows its Water-to-Salt evaporation, alongside the existing item-melting recipes.
• Updated the Solar Power Tower's Ponder scenes to show the new mirror field and sun-tracking behavior.

Bug Fixes

• Fixed list-based config options (pollution blacklist, per-block pollution, geyser biomes) silently reverting to their defaults when a single entry was malformed. A bad entry is now logged and skipped on its own, leaving the rest of your list intact.
• Fixed Geyser Vents spawning in mountain biomes instead of the documented desert, badlands, and savanna, and fixed the geyser biomes and geyser spawn chance config options doing nothing at all. Both now actually control where and how often Geyser Vents generate.
• Fixed Solar Mirrors sometimes failing to link to any tower at all.

Achievements

Added a dedicated Create: Solarpunk advancement tab with achievements that guide you through the mod from your first piece of Salt all the way to a running Steam Turbine.

Compatibility

• Diesel engines from Create: Diesel Generators now count as pollution sources when Global Warming is enabled.

Bug Fixes

• Fixed Create: New Age's Generator Coil incorrectly producing pollution.
• Fixed the Biomass Gasifier shaft not spinning when the machine was active.
• Fixed the Steam Turbine efficiency calculation requiring 2 blades per arm for full output. One brass blade per arm (4 per layer) is now enough to reach 100% efficiency.

QoL

• Added a pollution blacklist config option, letting you exclude specific blocks from ever counting as pollution sources.
• The Biomass Gasifier, Biofuel Engine, and Geyser Cap now support rotation direction control. Scroll on the side of the block (away from the shaft faces) to toggle between clockwise and counter-clockwise output, the same way the Andesite Solar Panel works.
• Updated the Steam Turbine Ponder scenes: walls now use Turbine Casing Glass between the corner frame columns, blades are shown facing the correct direction, and the max-size scene zooms out far enough to see the full structure.

Just a small little update to add something i forgot about.

Bug Fixes

• Fixed Turbine Blades always facing the same direction regardless of placement. They now orient to the direction you're looking when placed, like stairs. Also fixed the hitbox being a full block - it now matches the thin flat shape of the model.

Steam Turbine

Added the Steam Turbine multiblock. Build a 7x7 shell of Turbine Casing (or Turbine Casing Glass) around a column of Turbine Rotors, then fill each interior layer with Turbine Blades in a plus pattern - two blades per arm, four arms. Pipe steam in from any side face and rotational power exits from the top of the rotor column.

Blade type determines efficiency: Andesite Blades are cheaper but waste more steam, Brass Blades squeeze the most power out of every bucket. Mixing types is fine - efficiency scales smoothly. Taller turbines consume more steam and produce more SU, with condensate water draining from the bottom.

Steam

Added Steam as a new fluid. It is the fuel source for the Steam Turbine and can be bucketed and piped like any other fluid.

Solar Power Tower Steam Mode

The Solar Power Tower can now produce Steam in addition to Molten Salt. Right-click the tower with a Wrench to toggle between the two modes. Switching clears the stored fluid, so you cannot accumulate both at once. Steam can be piped directly to a Steam Turbine, making the tower a self-contained solar-to-power chain without needing a Heat Battery and boiler.

Turbine Casing Crafting

Turbine Casing is crafted by right-clicking a Block of Industrial Iron with a Zinc Ingot, or by running it through a Deployer holding zinc. Right-click a Turbine Casing with Glass to get the glass variant. Both work in-world and in a Deployer contraption.

Solar Mirror

The Solar Mirror has a new model and texture, replacing the old glass-and-stone design with a single dedicated texture.

Bug Fixes

• Fixed milling crops, leaves, and saplings in the Millstone producing nothing. The recipes were missing a processing time, so the mill would spin forever without completing.

Balance

• Solar Power Tower (Salt Mode): Molten Salt output has been substantially reduced. The previous rate was tuned for steam production and left the salt chain with far more capacity than a Heat Battery setup could ever use. A max-size tower now produces enough to run 9 Heat Batteries continuously.
• Fermentation Vat: Now requires a minimum height of 4 blocks to operate in addition to the existing 2x2 footprint requirement. This is configurable.

Create: Aeronautics Compat

Pollution sources inside Aeronautics sublevels (engines on airships) now correctly accumulate pollution in the real-world chunk where the airship is located. Previously they had no effect on the pollution system at all. Requires Sable/Aeronautics to be installed; has no effect otherwise.

Bug Fixes

• Fixed the Solar Heater not producing salt from water evaporation. Water buckets were filling the wrong internal tank, so evaporation never started.
• Fermentation Vat biofuel output now scales super-linearly with height, using the same curve as the Solar Power Tower. A minimum-height vat produces very little; building taller is now the main way to scale up biofuel production. Goggle overlay now shows the actual mB output per batch.

Biomass Pellet

Biomass Pellets now have a distinct role in the Biomass Gasifier. Raw Biomass burns quickly (200 ticks) with 1 Biochar per piece. Pellets burn slower (400 ticks) and produce 2 Biochar each, making them the dedicated path for farming Biochar and Fertilizer. All values are configurable.

Global Warming

Added an optional global warming system (disabled by default, toggle in the config).

Active pollution sources - campfires, furnaces, blast furnaces, smokers, blaze burners, steam engines, biofuel engines, and biomass gasifiers - emit black smoke and accumulate pollution in their chunk. When a chunk's pollution level crosses the threshold, it starts to decay: grass withers into Dead Grass, dirt crumbles into Ruined Dirt, and ruined dirt turns to Ash. Plants, leaves, and other fragile blocks are cleared along the way. Push a chunk far enough and the biome itself converts to a dead wasteland. Custom textures for the decay blocks are coming in the next release.

All rates, thresholds, and the target dead biome are configurable. The system is designed to make renewable energy the only sustainable long-term choice. For full details on pollution sources, mod compatibility, and config options, see the wiki.

Cleanup reverses the damage: as pollution clears, dead blocks gradually heal back toward grass, and once a chunk drops below the threshold its biome restores to what it was before.

Biofilter

Added the Biofilter, a brass-tier machine. Connect rotational power to its bottom face and it absorbs pollution from chunks within a configurable radius, gradually healing blocks and eventually restoring the biome. It draws stress from the kinetic network while running. Wearing goggles shows the current chunk pollution level and how fast the filter is removing it.

Kinetic Sprinkler

Added the Kinetic Sprinkler. Pipe water into it from any face and it will hydrate farmland and accelerate crop growth in a 5x5 area below it. Pipe in Fertilizer instead for forced instant growth every cycle.

Fertilizer

Added Fertilizer, a liquid made by mixing Biochar with water in a Create basin. Pipe it into the Kinetic Sprinkler for forced crop growth on every cycle.

Biochar

Added Biochar, a byproduct of the Biomass Gasifier. Each fuel item burned produces one Biochar in the Gasifier's output slot. The Gasifier pauses if the output is full, so keep it drained with a funnel or chute.

Biochar acts as a direct bonemeal substitute - right-click crops, grass, and other growable blocks to fertilize them. It is obtained only from the Gasifier, closing the biofuel loop with a useful agricultural byproduct.

Comparator Support

Comparators now read stored levels from three blocks:

• Heat Battery - signal proportional to stored heat
• Kinetic Battery - signal proportional to stored charge
• Biofuel Engine - signal proportional to fuel in the tank

Config

Every machine and generator is now configurable in the mod config file. You can adjust tank sizes, generator RPM and stress output, production speeds, output amounts, and geyser spawn rates and biomes.

Tooltips

All machines now show a description tooltip when hovering over them in the inventory, matching Create's style. Generators also display their stress capacity tier and, when wearing goggles, the exact SU output.

Bug Fixes

• Fixed a crash where Andesite and Brass Solar Panels could tick after their block was removed, causing a crash during day/night transitions in large connected networks.
• Fixed Solar Mirror blocks becoming excessively dark when another mirror is placed directly above them on the tower.
• Fixed the Brass Solar Panel showing the brass gearbox texture on its underside instead of the brass casing.
• Geyser Vents can no longer be moved by pistons or Create contraptions.

Solar Power Tower

Added the Solar Power Tower multiblock and Solar Mirror heliostat block.

The tower concentrates reflected sunlight to produce large quantities of Molten Salt from water. Build it in a 1x1, 2x2, or 3x3 footprint (maximum heights 5, 10, and 20 blocks respectively) and surround the sides with Solar Mirrors to increase output. Mirror efficiency follows a triangle curve - filling roughly half the available wall faces is optimal; over-mirroring past twice the optimal count reduces output to zero.

The tower requires a minimum 3x3 footprint to produce anything. Water consumption scales with footprint area (9:1 water-to-salt for a full 3x3 tower), making larger towers a serious infrastructure investment.

The Solar Mirror is a wall-mountable heliostat that can be placed on floors, walls, and ceilings. It must touch the tower's side face directly to count. Use a Create wrench to cycle it through all six facing orientations.

Both blocks are wrenchable: sneak + right-click breaks them and returns them as items.

Fermentation Vat

The Fermentation Vat now requires a minimum 2x2 footprint to operate. In exchange, production now scales with footprint area: a 2x2 vat processes 4 batches per cycle and a 3x3 processes 9, consuming water and biomass proportionally. Height still only adds tank capacity. This makes larger vats meaningfully more productive than stacking many small ones. Goggles now display the current batch scale and warn when the vat is too small to function.

Ponder Scenes

Added in-game Ponder tutorials (press W on a block in the creative menu or use a Ponder Wand) for all machines:

• Solar Power Tower & Solar Mirror - two scenes: multiblock assembly and mirror placement. Both blocks share the same entry.
• Fermentation Vat - two scenes: basic usage (2x2 minimum, water and biomass input, biofuel output) and scaling (how footprint area increases batch size and tank capacity).
• Biomass Gasifier - shows biomass insertion, ignition, and shaft output below.
• Biofuel Engine - shows biofuel piping, ignition, and shaft output below.

Ponder entries are organised into three tag groups in the index: Solar Machines (Solar Heater, Solar Panels, Heat Battery, Kinetic Battery, Geyser Cap), Bio Machines (Gasifier, Engine, Fermentation Vat), and Solar Power Tower.

JEI Integration

Added JEI recipe categories for the Fermentation Vat (Biomass + water -> Biofuel). Click either block in the JEI item list to open its category.

Bug Fixes

• Added missing cross-mod fluid tags: c:molten_salt and c:molten for Molten Salt, c:biofuel for Biofuel.

Biofuel Chain

Added a full biofuel energy chain: Biomass, Biomass Gasifier, Fermentation Vat, and Biofuel Engine. Biomass is a new item crafted from organic matter. The Biomass Gasifier processes raw biomass using rotational force. The Fermentation Vat then converts it into liquid biofuel using water: it's a multiblock structure that can be stacked vertically to increase capacity. Finally, the Biofuel Engine burns that fuel to generate rotational force (SU).

Geyser Cap

Geyser Vents now spawn naturally in desert, badlands, and savanna biomes. Placing a Geyser Cap on top of one harnesses the geothermal energy and converts it into rotational force (SU): a completely passive power source that works day and night, regardless of weather. The cap has an animated model, can be picked up and rotated with the Create wrench, and has a Ponder entry.

Improvements

• The Brass Solar Panel now plays an ambient electrical hum while generating power.

Bug Fixes

• Fixed a bug where SU generators (Solar Panels, Geyser Cap) would double their stored capacity on every world reload.