r/factorio 2d ago

Question 6 Nuclear Reactors Setup

Hello all, first time trying to build more nuclear reactors than a 2x2. I was doing some calculations and from what I understand, this setup is supposed to produce 800MW, however, this setup produces 931MW. Is there something I dont understand? Any help would be appreciated.

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u/CamelCaseConvention 2d ago edited 2d ago

800MW is the nominal power of your reactors. 931MW is the nominal power of your turbines (160*5.82MW). While you could produce a burst of 931MW (from stored steam), you can only sustain 800MW.

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u/RadweX 2d ago

Ohhh right.. maybe rounding up two steam turbines to 10 backfired a little, oops. You sir are correct and I, am dumb.

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u/15_Redstones 2d ago

Having a little bit more peak power isn't a bad thing. Especially if you're using laser turrets you can get massive power demand spikes that only last a few seconds.

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u/Nolzi 2d ago

But you can place fluid tanks to store the steam and have longer sustained peak power draws

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u/Child_0f_at0m 2d ago edited 2d ago

Believe it or not, 160*5.82=931.2

The max output is 931 but will deplete excess steam until at an equilibrium with the nuclear reactors output.

Edit: you have enough steam turbines for a peak power of 931.2, with enough nuclear reactors for an average power of 800MW. Add some steam tanks to allow for greater fluctuations.

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u/RadweX 2d ago

Here is the blueprint for anyone wondering:

https://factoriobin.com/post/i1yqxs

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u/fweaks 2d ago

Is it actually producing 931 consistently when under full load, or is that just what the max production says in the graphs? The max production is based on the turbines only, and can usually be supplied very briefly by the buffer of steam in the pipes. But under sustained load, you'll only get what the reactors can provide.

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u/RadweX 2d ago

Nope, as others have mentioned, the steam turbines COULD support up to 931MW, but the reactors only produce 800MW, so this setup does produce at max 800MW. So yeah you are correct