#"Every machine has its own internal electric capacity." Where can i find a formula for it?

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hybrid hinge
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I've had a long chat with @craidie in #quick-questions today trying to understand the internal electric capacity of buildings. The amount of charge capacity seems related to power comsumption of a machine. Adding modules seems to have some weird effects on top of that which also seem not reproducible: #quick-questions message

Any discussion, explanation and experimentation on that would be welcome.

dry blaze
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have you looked into the prototypes with ctrl shift e

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unless its just a constant that depends on a different value

hybrid hinge
dry blaze
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and from the looks of it youre still not in editor

hybrid hinge
dry blaze
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/editor

hybrid hinge
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And how does that help me?

dry blaze
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gives you access to time tools as previously suggested

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and more accurate control over how much power youre producing

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you can use an energy interface to perfectly control power production down to watts
and you can use the time tools to advance time by a single tick whenever you want
use those to test on like 10 different entities / machines and you should get at least some useful data

hybrid hinge
dry blaze
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are watts too high ?

hybrid hinge
hybrid hinge
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mhh the power grid overwiev graoh doesn't update every frame.

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Wow that is quite a spike.
That height of the spike changes with zoom level makes dubious about reading things from graphs.

hybrid hinge
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New measurement idea: Drain almost an entire accumulator with only capacitance of things while balancing having the power consumptopn exactly via solar (it's always day)
Do that with two different ratios of calculator pieces and then solve the resulting equations for both values.

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Nevermind those don't add up exactly.
Ofcourse it is not exactly 1kw more like 1006 or 1008 W ๐Ÿ™

dry blaze
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well buffer capacity is there, but unlisted (assembler 3)

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means it relies on another value to set the machines default

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while buildings with a changed buffer size like the roboport do have a listed buffer size like this

hybrid hinge
dry blaze
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those would be ones that got changed values

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as already stated

hybrid hinge
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Tell me more about that.

dry blaze
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some of those would be combinators and roboports for example

hybrid hinge
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Where can i seen the overwritten value?

hybrid hinge
dry blaze
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because its buffer size was not changed to something else manually

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so it uses the default value

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wherever that comes from is tbd

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the fuckers over there have more insight

hybrid hinge
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I have no access to that

dry blaze
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ik

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already asked over there too, just no good answer yet

hybrid hinge
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Is there any explanation for combinators not fully draining when unpowered?

dry blaze
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there was a recent change with those, so you might have luck in changelogs from like 3months ago

hybrid hinge
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    2.0.7:
        Received a UI overhaul.
            Now displays input signals when configuring combinators.
            Signals used by combinators can now be filtered between red, green, or both.

Seems unrelated.

dry blaze
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well thats 1 year old, not 3 months ๐Ÿ‘€

hybrid hinge
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2.0.72

Date: 22.10.2025
Changes

Decider combinator, arithmetic combinator and selector combinator are now primary energy consumers and have buffer size increased to make them more reliable in case of low power.
Reduced selector combinator energy usage from 5kW to 1kW.
When using "Entity tooltip delay", the timer is also reset when moving the camera or the character. Fixes blinking entity tooltip when moving.
hybrid hinge
dry blaze
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this does not explain why they wouldnt fully drain tho

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maybe just a special piece of code to prevent them losing their contents

hybrid hinge
hybrid hinge
hybrid hinge
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Okay it bothered me that i didn't know. So yeah, here is a video. different drain whether it is the first time or the non-first time.

dry blaze
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buffer size is roughly โ‰ˆ1.102x of the energy usage per tick
does this check out with what you measured

hybrid hinge