Every nuclear plant here has a real image, its reactor count and an output computed from the blueprint. Sort by output, filter by fuel handling or Aquilo, and copy the string.
Nuclear plants by output and reactor count
108 / 108
Reactors
Fuel handling
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Sort the gallery by output to find a plant for the power you need. The 108 designs run from a single 40 MW reactor to an 83,840 MW experiment with 528 reactors. Most first plants are four reactors in a 2x2 block, which gives 480 MW because each reactor touches two others; 47 designs have four reactors, and 8-reactor plants around 1.1 GW are the next common step.
Tileable designs are built to be pasted side by side, often as long thin strips, and many gain output as copies join because neighbouring reactors share the bonus. For very large factories there are complete blocks of 16 to 192 reactors, such as a 5.6 GW tile on a 50 x 50 grid and plants of 9.9, 12.5, 19 and 30 GW.
Fuel-saving and no-waste nuclear designs
A reactor burns each fuel cell for 200 seconds even when nobody uses the power, so designs that save fuel only insert a cell when the reactor has cooled or stored steam is low. In 2.0 a reactor can report its temperature and fuel directly, which is how many of these plants manage without steam tanks. Filter by fuel handling to choose robot delivery, belt feeding or plants that leave fuelling to you.
Space Age, Aquilo and quality nuclear blueprints
5 designs are made for Aquilo and send part of their heat to keep buildings warm, so they give less electricity than the same reactors elsewhere. 8 designs place uncommon, rare or legendary entities, which need the quality system of Space Age; their pages say how much they understate. Two designs, by their authors' notes, need mods (Bots Bots Bots and Bob's Inserters) and are marked on their pages.
Why the output numbers differ from the design names
The output on every card is computed by this site from the decoded blueprint, using normal-quality numbers: 40 MW of heat per reactor plus 40 MW for each fuelled neighbour, at most 10 MW per heat exchanger and 5.82 MW per turbine. A plant delivers the smallest of those three totals. Designers often round or name the peak from stored steam, so when the name and the computed figure differ, the design page explains why.
Which game version are these nuclear blueprints for?
Every string was exported from a Factorio 2.0 version between 2.0.7 and 2.0.77; designs exported by the 2.1 experimental version were left out because they may not import into 2.0. Older 1.1 nuclear books were not used. This site decoded each string and counted its reactors, exchangers and turbines, but did not import them in the game.
Nuclear blueprint questions
How long does nuclear fuel last?
One uranium fuel cell lasts 200 seconds in a normal-quality reactor, whether the power is used or not. A 2x2 block of four reactors therefore uses 1.2 cells a minute when all four run constantly.
Are there Nilaus nuclear blueprints?
Two designs here are based on the YouTuber Nilaus' four-reactor plant: a repost of the layout and a version modified to add fuel only when a reactor is empty and below 650 °C. Both give about 466 MW. Nilaus blueprints for other builds are not part of this release.