Pig iron warehouse
Determines how much pig iron your planet can hold. Once the warehouse is full, anything more your pig iron mine produces is lost.

Even without a warehouse a planet holds 100,000 units of each resource. Every level of your Pig iron warehouse doubles the capacity for pig iron. Once the limit is reached, nothing more is added – whatever your Pig iron mine keeps producing goes to waste.
Rule of thumb: the warehouse should hold at least what the mine produces while you're offline – overnight or for a whole day. Also think about your next big construction projects: if their pig iron cost doesn't fit into storage, your own production will never be enough to pay for them.
With pig iron your Blast furnace plays a part: it consumes pig iron constantly, so the warehouse fills more slowly while it's running. Throttle the furnace, on the other hand, and storage fills up fast.
Background
The pig iron warehouse allows the storage of large amounts of iron. Each level doubles the storage capacity. If the storage capacity is reached, the production will idle.
Levels at a glance
| Level | Pig iron | Metal | Build time | Storage capacity |
|---|---|---|---|---|
| 1 | 2,000 | 800 | 3 min 53 s | 200,000 |
| 2 | 4,000 | 1,600 | 7 min 47 s | 400,000 |
| 3 | 8,000 | 3,200 | 15 min 33 s | 800,000 |
| 4 | 16,000 | 6,400 | 31 min 7 s | 1,600,000 |
| 5 | 32,000 | 12,800 | 1 h 2 min | 3,200,000 |
| 6 | 64,000 | 25,600 | 2 h 4 min | 6,400,000 |
| 7 | 128,000 | 51,200 | 4 h 8 min | 12,800,000 |
| 8 | 256,000 | 102,400 | 8 h 17 min | 25,600,000 |
| 9 | 512,000 | 204,800 | 16 h 35 min | 51,200,000 |
| 10 | 1,024,000 | 409,600 | 1 d 9 h 11 min | 102,400,000 |
| 11 | 2,048,000 | 819,200 | 2 d 18 h 22 min | 204,800,000 |
| 12 | 4,096,000 | 1,638,400 | 5 d 12 h 44 min | 409,600,000 |
| 13 | 8,192,000 | 3,276,800 | 11 d 1 h | 819,200,000 |
| 14 | 16,384,000 | 6,553,600 | 22 d 2 h | 1,638,400,000 |
| 15 | 32,768,000 | 13,107,200 | 44 d 5 h | 3,276,800,000 |
| 16 | 65,536,000 | 26,214,400 | 88 d 11 h | 6,553,600,000 |
| 17 | 131,072,000 | 52,428,800 | 176 d 23 h | 13,107,200,000 |
| 18 | 262,144,000 | 104,857,600 | 353 d 23 h | 26,214,400,000 |
| 19 | 524,288,000 | 209,715,200 | 707 d 22 h | 52,428,800,000 |
| 20 | 1.05 B | 419,430,400 | 1,415 d 21 h | 104,857,600,000 |
| 21 | 2.10 B | 838,860,800 | 2,831 d 19 h | 209,715,200,000 |
| 22 | 4.19 B | 1.68 B | 5,663 d 14 h | 419,430,400,000 |
| 23 | 8.39 B | 3.36 B | 11,327 d 5 h | 838,860,800,000 |
| 24 | 16.78 B | 6.71 B | 22,654 d 10 h | 1,677,721,600,000 |
| 25 | 33.55 B | 13.42 B | 45,308 d 20 h | 3,355,443,200,000 |
| 26 | 67.11 B | 26.84 B | 90,617 d 16 h | 6,710,886,400,000 |
| 27 | 134.22 B | 53.69 B | 181,235 d 8 h | 13,421,772,800,000 |
| 28 | 268.44 B | 107.37 B | 362,470 d 17 h | 26,843,545,600,000 |
| 29 | 536.87 B | 214.75 B | 724,941 d 10 h | 53,687,091,200,000 |
| 30 | 1.07 T | 429.50 B | 1,449,882 d 20 h | 107,374,182,400,000 |
| 31 | 2.15 T | 858.99 B | 2,899,765 d 17 h | 214,748,364,800,000 |
| 32 | 4.29 T | 1.72 T | 5,799,531 d 10 h | 429,496,729,600,000 |
| 33 | 8.59 T | 3.44 T | 11,599,062 d 21 h | 858,993,459,200,000 |
| 34 | 17.18 T | 6.87 T | 23,198,125 d 19 h | 1,717,986,918,400,000 |
| 35 | 34.36 T | 13.74 T | 46,396,251 d 15 h | 3,435,973,836,800,000 |
| 36 | 68.72 T | 27.49 T | 92,792,503 d 7 h | 6,871,947,673,600,000 |
| 37 | 137.44 T | 54.98 T | 185,585,006 d 14 h | 13,743,895,347,200,000 |
| 38 | 274.88 T | 109.95 T | 371,170,013 d 5 h | 27,487,790,694,400,000 |
| 39 | 549.76 T | 219.90 T | 742,340,026 d 11 h | 54,975,581,388,800,000 |
| 40 | 1.10 Qa | 439.80 T | 1,484,680,052 d 22 h | 109,951,162,777,600,000 |
| 41 | 2.20 Qa | 879.61 T | 2,969,360,105 d 21 h | 219,902,325,555,200,000 |
| 42 | 4.40 Qa | 1.76 Qa | 5,938,720,211 d 18 h | 439,804,651,110,400,000 |
| 43 | 8.80 Qa | 3.52 Qa | 11,877,440,423 d 12 h | 879,609,302,220,800,000 |
| 44 | 17.59 Qa | 7.04 Qa | 23,754,880,847 d | 1,759,218,604,441,600,000 |
| 45 | 35.18 Qa | 14.07 Qa | 47,509,761,694 d | 3,518,437,208,883,200,000 |
| 46 | 70.37 Qa | 28.15 Qa | 95,019,523,388 d 1 h | 7,036,874,417,766,400,000 |
| 47 | 140.74 Qa | 56.29 Qa | 190,039,046,776 d 2 h | 14,073,748,835,532,800,000 |
| 48 | 281.47 Qa | 112.59 Qa | 380,078,093,552 d 4 h | 28,147,497,671,065,600,000 |
| 49 | 562.95 Qa | 225.18 Qa | 760,156,187,104 d 9 h | 56,294,995,342,131,200,000 |
| 50 | 1.13 Qi | 450.36 Qa | 1,520,312,374,208 d 18 h | 112,589,990,684,262,400,000 |
Values without speed-up and assistants. Costs are for upgrading to the given level. Set your development center and microsystem accelerator above and the build times adjust.