v1.0.0
Power
Substation
Transformers from 10 kW to 1 GW with losses, temperature and protection, grid stabiliser, switchgear with a live network diagram and distribution boxes with load shedding.
Power
Nuclear Power Plant
Reactor, steam turbine and cooling tower for about 1 MW of power, plus a large reactor and a 1.5 MW turbine – with radiation, a radiation shield gate, meltdown and nuclear waste.
v1.1.0
Server + client
Stable
Stationeers 0.2.6428.27798
A nuclear power station with a closed loop and about 1 MW of power – with real risk: radiation, meltdown, nuclear waste. The reactor makes main steam, the steam turbine makes power, the cooling tower releases the waste heat to the outside air, and at the control room desk you control it all. All parts have custom 3D models, displays, LEDs, buttons and full IC10 control.
Power plant
- Boiling water reactor with 6 fuel rods, up to 3 MW of heat, main steam at 280 °C. Control rods by hand or in AUTO, decay heat, a relief valve instead of bursting.
- Steam Turbine 1 MW: 35 % of the steam energy becomes power, the condensate goes back into the reactor. Bypass for load rejection, trip on a hot condenser.
- Cooling tower with steam plumes: up to 2.5 MW of waste heat to the outside air, needs air from 10 kPa. At full power about 60 L of water evaporate per hour.
- Control room desk with three displays and an alarm list: control rods, AUTO, setpoint in MW, SCRAM, ACK and a view for radiation and disposal.
- Fuel rod factory: 20 uranium ore + 5 steel per rod, one rod lasts 4 hours at full power.
- Large plant (since 1.1.0): large reactor with 9 fuel rods (4.5 MW heat) and steam turbine 1.5 MW. For full output connect two cooling towers to the cooling water loop.
Warning levels and meltdown
- Pre-warning from 650 K, alarm from 750 K, scram from 800 K, core damage from 1100 K with a countdown. Every level has its own sound, every warning gives the time to the next level.
- After 30 s of core damage the core melts: explosion, the reactor becomes a wreck, and a contaminated zone with 100 Sv/h at the centre forms around it. Meltdown and explosion can be switched off. In hardcore there is no automatic scram.
Radiation and disposal
- Radiation in mSv/h, it falls with distance and walls keep it out. The dose adds up per player. A freshly spent rod gives 2 Sv/h at 1 m.
- Geiger counter, radiation monitor and radiation detector measure and warn. Radiation suit and radiation helmet together keep out 95 %.
- Spent rods decay in the nuclear waste bunker with 12 slots. The reprocessing plant turns 3 spent rods into a new one and a nuclear waste barrel.
- Radiation shield gate (since 1.1.0): airtight, 99.9 % shielding, airlock, lockdown and emergency open from the radiation side. Shielded transport cask for 9 rods and fuel rod carrier for chutes. Uranium ore radiates weakly, by amount and distance.
For the 1 MW output you need Extreme Cable or Power Cable+: the turbine never supplies more than the weakest cable in the network carries. As with Steam Power, the connections only accept the right pipe type, and all structures are fireproof, on Venus too. Labels, displays and device names appear in German or English, depending on the game language. The server and all players need the mod.
Full guide: Nuclear Power Plant in the wiki
What it does
- Boiling water reactor, Steam Turbine 1 MW and cooling tower in a closed loop, about 1 MW of power.
- Control room desk with three displays, alarm list, AUTO control and SCRAM.
- Warning levels with their own sounds and the time left to the next level.
- Meltdown with explosion, wreck and contaminated zone, can be switched off; plus a hardcore mode.
- Radiation with dose per player, Geiger counter, radiation monitor, radiation detector and radiation suit.
- Fuel rod factory, nuclear waste bunker and reprocessing plant for the whole fuel cycle.
- Large reactor with 9 rods and steam turbine 1.5 MW as a second expansion stage.
- Radiation shield gate with airlock and lockdown, transport cask and fuel rod carrier.
- Custom 3D models, labels in German or English, full IC10 control and console commands.
Version history
-
v1.1.0Oct 14, 2026
New: large reactor (9 fuel rods, 4.5 MW heat) and steam turbine 1.5 MW as additional variants; radiation shield gate (airtight, 99.9 % shielding, airlock groups, lockdown at a threshold or monitor alarm, emergency open from the radiation side, obstacle detection, protection level, IC10, control room); transport cask for 9 rods (pull, rover or mount) and fuel rod carrier for 3 rods (fits through chutes); uranium ore radiates by amount and distance, crates, lockers and rovers dampen the radiation of their contents; new console commands akw tor, akw erz and akw behaelter; new parts paintable.
-
v1.0.2Oct 13, 2026
The fuel rod factory accepts steel ingots (it ejected them as foreign items). A turbine trip shows its cause on turbine, reactor and control room, a reset pressed too early is queued. Radiation monitor and radiation detector sit in front of finished walls and ceilings.
-
v1.0.0Oct 9, 2026
First release: boiling water reactor, Steam Turbine 1 MW, cooling tower with steam plumes, control room desk and fuel rod factory. Warning levels with their own sounds, meltdown (can be switched off) and hardcore mode. Radiation with dose and protection levels, nuclear waste bunker, reprocessing plant, Geiger counter, radiation monitor, radiation detector, radiation suit and radiation helmet. All structures fireproof, full IC10 control and the console command akw.
-
v1.0.1Oct 9, 2026
The running sounds of reactor, turbine, cooling tower and control room desk can now only be heard up to 25 m; alarms and sirens still carry far. New preview image showing all parts.
Frequently asked
Can I switch off the meltdown?
Yes. With KernschmelzeAktiv off the core takes no damage any more; alarm and scram still happen. With ExplosionAktiv off the meltdown happens without an explosion. If the core has already melted, akw reset restores the nearest reactor and akw zone entfernen clears the contaminated zone – both on the host only. If you like it harder, switch Hardcore on: then there is no automatic scram. More in the guide.
How do I protect myself against the radiation?
With distance, walls and gear. Double the distance gives a quarter of the radiation, and every wall keeps out half. A normal space suit with a closed helmet keeps out 50 %, the radiation suit and radiation helmet together 95 %. In the contaminated zone, next to nuclear waste barrels and at an open bunker there is dust in the air: without a closed helmet or a gas mask the dose doubles there. Spent rods belong in the nuclear waste bunker right away. Up to 250 mSv of accumulated dose nothing happens, above that you take radiation damage. The Geiger counter shows your dose and your protection level.
Why does the turbine not deliver the full 1 MW?
In AUTO the turbine only supplies what the network is asking for. If it stays below that despite demand, check the cables first: the turbine never offers more than 95 % of the weakest cable or fuse, so nothing burns out – 4.75 kW with normal cable, 95 kW with heavy cable, 475 kW with super heavy cable. For the full 1 MW you need a network made of Extreme Cable or Power Cable+. Separate consumers on thin cables with a transformer. The CABLE LED on the turbine shows whether the cable limit is holding it back. If it is not lit, look at the condenser: if cooling water is missing or the cooling tower cools poorly, the efficiency drops.
The turbine shuts down and shows a trip – what now?
The turbine display and the control room show the reason: condenser too hot (above 90 °C), no cooling water or manual or by IC10. Fix the cause first, so check the cooling tower, the cooling water and the pipes. You can reset with RESET on the turbine or ACK on the control room desk as soon as the condenser is below the warning temperature of 60 °C and cooling water arrives. Pressing too early queues the restart: the turbine then starts again by itself as soon as possible. More in the guide.
The fuel rod factory ejects the steel again – why?
Up to version 1.0.1 steel ingots counted as foreign items and ended up in the output slot again. This is fixed from 1.0.2. The factory needs Ingot (Steel), not steel sheets: sheets and everything else are still passed through. Each fuel rod takes 20 uranium ore and 5 steel, the store holds 200 steel. More in the guide.
My 1.5 MW turbine only delivers about 1 MW and the condenser sits at 90 °C. Why?
At full load the large turbine puts about 2.8 MW of heat into the cooling water, one cooling tower removes at most 2.5 MW. Connect a second cooling tower to the same cooling water loop (the warm and cold water pipes link both towers) – then it runs at the full 1.5 MW and 40 °C. More in the guide.
The radiation shield gate won't open any more. Am I locked in?
No. The gate is in lockdown (red beacon, STOP flashing) because the threshold was reached on one side or a radiation monitor on the data network is alarming. From the radiation side the red EMERGENCY OPEN mushroom always opens it for 15 s. From outside, OPEN releases the lockdown once the radiation is below 80 % of the threshold; with the full radiation protection set OPEN works earlier too (the lockdown stays, the gate closes again after 15 s). The display tells you why.
How do I move spent rods safely from the reactor to the bunker?
On foot or by rover use the transport cask: 9 rods, 99.99 % shielding when closed, pull it by the handle or wrench it onto the rover. For chutes there is the fuel rod carrier (3 rods, 99.9 %). Only open the lid to load and unload – with the lid open half the radiation escapes. Loose in the inventory, 9 freshly spent rods give more than 70 Sv/h.
More mods
v1.0.0
Power
Fluix Line
Gas pipe, liquid pipe and power cable in one bundle: one line instead of three, up to 500 kW or unlimited.
v1.0.0
Power
RTG – Isotope Generator
Power without fuel: 800 W in survival, as much as the network demands in creative – and never more than the cable carries.