Coal Output: Difference between revisions

Latest revision as of 15:58, 20 May 2026

Coal Output is a research technology in the Economy tree of the Research Center in Whiteout Survival.

Overview

Coal Output increases Coal Output. It is available in 5 tiers (Coal Output I, Coal Output II, Coal Output III, Coal Output IV, Coal Output V), each with multiple upgrade levels.

Research costs include 5 resources: Resource, Meat, Wood, Coal, and Iron. Prerequisites require a specific Research Center level and, for higher tiers, completion of previous tiers. Construction times are base times and do not account for Research Speed bonuses.

Coal Output I

Level	Prerequisites	Resource	Meat	Wood	Coal	Iron	Time	Bonus	Power
1	Research Center 4 Coal Mining I 1	5,400	5,400	1,000	270	320	00:00:54	Coal Output: 3.50%	910
2	Research Center 5	7,500	7,500	1,500	370	440	00:01:21	Coal Output: 3.50%	910
3	Research Center 6	16,000	16,000	3,200	810	960	00:03:36	Coal Output: 4.50%	1,170

Coal Output II

Level	Prerequisites	Resource	Meat	Wood	Coal	Iron	Time	Bonus	Power
1	Research Center 9 Coal Mining I 1	54,000	54,000	10,000	2,700	640	00:10:00	Coal Output: 5.50%	1,430
2	Research Center 10	75,000	75,000	15,000	3,700	890	00:15:00	Coal Output: 5.50%	1,430
3	Research Center 11	160,000	160,000	32,000	8,100	1,900	00:40:00	Coal Output: 7.00%	1,820

Coal Output III

Level	Prerequisites	Resource	Meat	Wood	Coal	Iron	Time	Bonus	Power
1	Research Center 14 Coal Mining II 1	180,000	180,000	37,000	9,400	2,200	00:37:30	Coal Output: 5.50%	1,430
2	Research Center 15	400,000	400,000	81,000	20,000	4,800	01:40:00	Coal Output: 7.00%	1,820

Coal Output IV

Level	Prerequisites	Resource	Meat	Wood	Coal	Iron	Time	Bonus	Power
1	Research Center 23 Iron Mining III 1	1,200,000	1,200,000	240,000	62,000	16,000	11:06:40	Coal Output: 8.00%	2,080
2	Research Center 24	1,700,000	1,700,000	340,000	86,000	22,000	16:40:00	Coal Output: 8.00%	2,080
3	Research Center 25	3,700,000	3,700,000	740,000	180,000	48,000	1d 20:26:40	Coal Output: 10.00%	2,600

Coal Output V

Level	Prerequisites	Resource	Meat	Wood	Coal	Iron	Time	Bonus	Power
1	Research Center 28 Ion Mining IV 1	2,200,000	2,200,000	440,000	110,000	64,000	2d 21:26:40	Coal Output: 8.00%	2,080
2	Research Center 29	3,000,000	3,000,000	610,000	150,000	89,000	4d 08:10:00	Coal Output: 8.00%	2,080
3	Research Center 30	6,600,000	6,600,000	1,300,000	330,000	190,000	11d 13:46:40	Coal Output: 10.00%	2,600

@@ Line 1: / Line 1: @@
-'''Coal Output''' refers to the passive hourly production rate of [[Coal]] generated by your city's Coal Mine or equivalent production buildings. Because Coal fuels the [[Furnace]] and is required for building upgrades, maximizing Coal Output is one of the highest priorities in city management.
+'''Coal Output''' is a [[Research|research]] technology in the Economy tree of the [[Research_Center|Research Center]] in Whiteout Survival.
 == Overview ==
-Coal has a dual role in Whiteout Survival: it is both the fuel that keeps the [[Furnace]] running (protecting your city from deadly snowstorms) and a construction material needed for building upgrades. This means Coal Output directly impacts both city survival and development speed.
+Coal Output increases '''Coal Output'''. It is available in 5 tiers (Coal Output I, Coal Output II, Coal Output III, Coal Output IV, Coal Output V), each with multiple upgrade levels.
-== Factors Affecting Coal Output ==
+Research costs include 5 resources: Resource, Meat, Wood, Coal, and Iron. Prerequisites require a specific Research Center level and, for higher tiers, completion of previous tiers. Construction times are base times and do not account for Research Speed bonuses.
-=== Production Buildings ===
+== Coal Output I ==
-The Coal Mine (or equivalent building) provides passive Coal generation. Upgrading your Coal Mine increases both the hourly production rate and building storage capacity.
+{| class="wikitable"
+|-
+! Level !! Prerequisites !! Resource !! Meat !! Wood !! Coal !! Iron !! Time !! Bonus !! Power
+|-
+| 1 || Research Center 4<br>Coal Mining I 1 || 5,400 || 5,400 || 1,000 || 270 || 320 || 00:00:54 || Coal Output: 3.50% || 910
+|-
+| 2 || Research Center 5 || 7,500 || 7,500 || 1,500 || 370 || 440 || 00:01:21 || Coal Output: 3.50% || 910
+|-
+| 3 || Research Center 6 || 16,000 || 16,000 || 3,200 || 810 || 960 || 00:03:36 || Coal Output: 4.50% || 1,170
+|}
-=== Research Bonuses ===
+== Coal Output II ==
-The [[Economy Research]] tree includes technologies that directly boost Coal Output:
+{| class="wikitable"
-* '''Coal Production''' — Percentage increase to base Coal generation rate
+|-
-* '''Mining Output''' — General mineral output multiplier
+! Level !! Prerequisites !! Resource !! Meat !! Wood !! Coal !! Iron !! Time !! Bonus !! Power
+|-
+| 1 || Research Center 9<br>Coal Mining I 1 || 54,000 || 54,000 || 10,000 || 2,700 || 640 || 00:10:00 || Coal Output: 5.50% || 1,430
+|-
+| 2 || Research Center 10 || 75,000 || 75,000 || 15,000 || 3,700 || 890 || 00:15:00 || Coal Output: 5.50% || 1,430
+|-
+| 3 || Research Center 11 || 160,000 || 160,000 || 32,000 || 8,100 || 1,900 || 00:40:00 || Coal Output: 7.00% || 1,820
+|}
-=== Hero Bonuses ===
+== Coal Output III ==
-Some heroes provide Coal production bonuses when assigned to the Coal Mine building slot. Check individual hero skill descriptions for relevant bonuses.
+{| class="wikitable"
+|-
-=== Chief Gear ===
+! Level !! Prerequisites !! Resource !! Meat !! Wood !! Coal !! Iron !! Time !! Bonus !! Power
-[[Chief Gears|Development Chief Gear]] sets may include Coal Output increases as secondary stats.
+|-
+| 1 || Research Center 14<br>Coal Mining II 1 || 180,000 || 180,000 || 37,000 || 9,400 || 2,200 || 00:37:30 || Coal Output: 5.50% || 1,430
-== Building Levels and Output ==
+|-
+| 2 || Research Center 15 || 400,000 || 400,000 || 81,000 || 20,000 || 4,800 || 01:40:00 || Coal Output: 7.00% || 1,820
+|}
+== Coal Output IV ==
 {| class="wikitable"
 |-
-! Building Level !! Approx. Hourly Output !! Notes
+! Level !! Prerequisites !! Resource !! Meat !! Wood !! Coal !! Iron !! Time !! Bonus !! Power
 |-
-| 1 || ~300/hr || Starting production
+| 1 || Research Center 23<br>Iron Mining III 1 || 1,200,000 || 1,200,000 || 240,000 || 62,000 || 16,000 || 11:06:40 || Coal Output: 8.00% || 2,080
 |-
-| 5 || ~1,500/hr || Early game
+| 2 || Research Center 24 || 1,700,000 || 1,700,000 || 340,000 || 86,000 || 22,000 || 16:40:00 || Coal Output: 8.00% || 2,080
+|-
+| 3 || Research Center 25 || 3,700,000 || 3,700,000 || 740,000 || 180,000 || 48,000 || 1d 20:26:40 || Coal Output: 10.00% || 2,600
+|}
+== Coal Output V ==
+{| class="wikitable"
 |-
-| 10 || ~5,000/hr || Mid game
+! Level !! Prerequisites !! Resource !! Meat !! Wood !! Coal !! Iron !! Time !! Bonus !! Power
 |-
-| 15 || ~15,000/hr || Late game
+| 1 || Research Center 28<br>Ion Mining IV 1 || 2,200,000 || 2,200,000 || 440,000 || 110,000 || 64,000 || 2d 21:26:40 || Coal Output: 8.00% || 2,080
 |-
-| 20 || ~40,000/hr || Advanced
+| 2 || Research Center 29 || 3,000,000 || 3,000,000 || 610,000 || 150,000 || 89,000 || 4d 08:10:00 || Coal Output: 8.00% || 2,080
 |-
-| 25 || ~80,000+/hr || Endgame
+| 3 || Research Center 30 || 6,600,000 || 6,600,000 || 1,300,000 || 330,000 || 190,000 || 11d 13:46:40 || Coal Output: 10.00% || 2,600
 |}
-''Note: Exact values vary significantly with research and hero bonuses.''
-== Coal Consumption ==
-Coal is consumed by:
-* **Furnace fuel** — The Furnace burns Coal continuously to generate heat
-* **Building upgrades** — High-level construction requires Coal
-* **Some Research** — Advanced technologies in Growth and Economy trees cost Coal
-* **Gear crafting** — Some gear recipes require Coal
-The Furnace is by far the largest constant drain on Coal, making it essential to maintain strong Coal Output.
-== Critical Warning: Furnace Coal Supply ==
-If your Coal supply runs out, the Furnace begins to lose heat. In a snowstorm, this can result in troop casualties and city damage. Always maintain at minimum a 24-hour buffer of Coal in reserve.
-== Maximizing Coal Output ==
-# Upgrade Coal Mine buildings to the highest possible level
-# Complete Coal Production research in the Economy tree
-# Assign heroes with Coal production bonuses
-# Check building storage caps and collect regularly
-== Tips ==
-* '''Coal Output is never "enough" at high levels:''' Demand always seems to outpace production — supplement with regular [[Coal Mining]] gathering.
-* '''Multiple buildings help:''' Two or three Coal Mines at high levels generate far more than one maxed building.
-* '''Always have Coal reserves:''' The Furnace running dry is a city-wide emergency — treat Coal like a fuel tank with a minimum level.
-* '''Research first:''' Coal Production research multiplies all Coal Mine output, so invest in it early.
 == See Also ==
-* [[Coal]]
+* [[Research]]
-* [[Furnace]]
+* [[Research_Center|Research Center]]
-* [[Resources]]
+* [[Buildings]]
-* [[Economy Research]]
-* [[Coal Mining]]
-* [[Wood Output]]
-* [[Iron Output]]
-* [[Meat Output]]