Help calculating power requirement
Posted: Sun Dec 09, 2018 4:35 pm
I have several problems with calculating power requirements and would like someone to show me where I'm going wrong.
I have an electric furnace (drain 6kw, consumption 180kw) with a level 3 productivity module (-50%) and a level 3 efficiency module (+80%). My math: 6000 + 180000 *(1 + .8 - .5) = 240000, but the games says consumption is 233kw(+30%) drain 6kw = 239000. A difference of 1kw.
The wiki says arithmetic/decider combinators use 2kw, game says 1kw.
For inserters wiki: drain 400w, consumption 13kw, game: drain 400, consumption 13.2kw (13.6kw total).
Fast inserters wiki: drain 500w, consumption 46kw, game: drain 500w, consumption 46.2kw (46.7kw total).
Lamps wiki: 5kw, game: 5kw.
So according to my calculations (using the larger value from wiki or game) my steel smelting unit uses:
120 furnaces: 28.8mw
240 inserters: 3,264kw
4 fast inserters: 186.8kw
31 lamps: 155kw
16 combinators: 32kw
Total power:32,437,800
Now the wiki says accumulators will transfer 300kw per second, the game list this as 300kw consumption. That means my power usage should be satisfied by 108.18 accumulators: 32,437,800 / 300000 = 108.18.
For OCD reasons I'm using 112 (33.6mw) between the main power grid and the smelting unit, yet when the furnaces are turned the accumulators drain faster than they are charged by the 262 steam engines (235.8mw).
What am I missing in my calculations?
Edit: corrected steam mw.
I have an electric furnace (drain 6kw, consumption 180kw) with a level 3 productivity module (-50%) and a level 3 efficiency module (+80%). My math: 6000 + 180000 *(1 + .8 - .5) = 240000, but the games says consumption is 233kw(+30%) drain 6kw = 239000. A difference of 1kw.
The wiki says arithmetic/decider combinators use 2kw, game says 1kw.
For inserters wiki: drain 400w, consumption 13kw, game: drain 400, consumption 13.2kw (13.6kw total).
Fast inserters wiki: drain 500w, consumption 46kw, game: drain 500w, consumption 46.2kw (46.7kw total).
Lamps wiki: 5kw, game: 5kw.
So according to my calculations (using the larger value from wiki or game) my steel smelting unit uses:
120 furnaces: 28.8mw
240 inserters: 3,264kw
4 fast inserters: 186.8kw
31 lamps: 155kw
16 combinators: 32kw
Total power:32,437,800
Now the wiki says accumulators will transfer 300kw per second, the game list this as 300kw consumption. That means my power usage should be satisfied by 108.18 accumulators: 32,437,800 / 300000 = 108.18.
For OCD reasons I'm using 112 (33.6mw) between the main power grid and the smelting unit, yet when the furnaces are turned the accumulators drain faster than they are charged by the 262 steam engines (235.8mw).
What am I missing in my calculations?
Edit: corrected steam mw.