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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.