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|  | This is about how many [[Boiler]]s, [[Pump]]s, [[Steam engine]]s and also ratios of [[Solar panel]] and [[Basic accumulator]] (and more).
 |  | #REDIRECT [[Power production#Optimal_ratio]] | 
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|  | == Hot liquids ==
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|  | === Steam engines, pumps and boilers ===
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|  | {| class="wikitable"
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|  | |+ Needed number of entities in different situations 
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|  | ! Situation -> !! One steam engine !! One pump !! Full pipe
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|  | | Steam engines      || 1 || 10 || 21 ? (depends also on length of the pipes)
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|  | | Boilers            || 2 || 14 || 28 ?
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|  | | Pumps              || 1 || 1  || 3
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|  | |} 
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|  | Each steam engine needs roughly 1.31 boilers when running at full capacity.
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|  | One [[Pump|offshore pump]] can satisfy 14 [[Boiler]]s and 10 [[Steam engine|steam engines]]. 13 boilers will make the job also, but this tends to have problems to raise the temp after coal shortness or other accidents ([[Biter]]s love to attack the boilers).
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|  | To fully satisfy a pipe you need 3 [[Pump]]s or 5 [[Small pump]]s (or better 6, but that depends on pressure!). But with this setup you will find, that the length of your pipe-setup will influence this too much. This is definitely not a beginner strategy.
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|  | See also [[Liquids/Hot|Hot Liquids]] and [[Liquids/Pipe physics]].
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|  | === Hot liquids in tanks ===
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|  | Hot water from boilers can also be stored in [[Storage Tank|storage tanks]] and used by extra steam engines during peak times or during night (if solar is in place). This energy storage technique can be used instead of or in addition to [[Basic accumulator|accumulators]].
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|  | See [[Liquids/Hot#Storing_hot_liquids_as_energy_storage|about storing of hot liquids]] how to use that.
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|  | == Solar/Accu ==
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|  | === Optimal ratio ===
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|  | The optimal ratio is 0.84 accumulators per solar panel.
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|  | This is taken from [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=5594 Accumulator / Solar panel ratio].
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|  | === Perfect placing ===
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|  | * [http://www.factorioforums.com/forum/viewtopic.php?f=8&t=1865 Big solar farm]: About the perfect placing of panels
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