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| TABLE 8 | ||||||||||||||||||
| ELECTRICITY CONSUMED BY U.S. CEMENT PLANTS, BY PLANT PROCESS1 | ||||||||||||||||||
| Electricity consumed2 | Average | |||||||||||||||||
| Generated- | Purchased | Total3 | Cement | consumption | ||||||||||||||
| Quantity | Quantity | Quantity | produced4 | (kilowatthours | ||||||||||||||
| Number | (million | Number | (million | Number | (million | Percentage | (thousand | per ton of | ||||||||||
| Plant process | of plants | kilowatthours) | of plants | kilowatthours) | of plants | kilowatthours) | of total | metric tons) | cement produced) | |||||||||
| 2012: | ||||||||||||||||||
| Integrated plants: | ||||||||||||||||||
| Wet | -- | -- | 11 | 532 | 11 | 532 | 5 | 4,061 | 131 | |||||||||
| Dry5, 6 | 3 | 228 | 85 | 7 | 9,550 | 85 | 7 | 9,770 | 95 | 68,922 | 142 | |||||||
| Both6, 8- | -- | -- | 1 | W | 1 | W | W | W | W | |||||||||
| Total or average3 | 3 | 228 | 97 | 7 | 10,100 | 97 | 7 | 10,300 | 100 | 72,983 | 141 | |||||||
| Grinding plants9 | -- | -- | 7 | 118 | 7 | 118 | -- | 1,092 | 108 | |||||||||
| Exclusions10 | -- | -- | 1 | XX | 1 | XX | -- | 609 | XX | |||||||||
| 2013: | ||||||||||||||||||
| Integrated plants: | ||||||||||||||||||
| Wet | -- | -- | 10 | 485 | 10 | 485 | 5 | 3,439 | 141 | |||||||||
| Dry5, 6 | 4 | 230 | 85 | 7 | 9,800 | 85 | 7 | 10,000 | 95 | 72,000 | 139 | |||||||
| Both6, 8- | -- | -- | 1 | W | 1 | W | W | W | W | |||||||||
| Total or average3 | 4 | 230 | 96 | 7 | 10,300 | 96 | 7 | 10,500 | 100 | 75,439 | 139 | |||||||
| Grinding plants9 | -- | -- | 5 | 137 | 5 | 137 | -- | 1,277 | 108 | |||||||||
| Exclusions10 | -- | -- | 2 | XX | 2 | XX | -- | 89 | XX | |||||||||
| W Withheld to avoid disclosing company proprietary data. XX Not applicable. -- Zero.- | ||||||||||||||||||
| 1Excludes Puerto Rico. | ||||||||||||||||||
| 2Data are rounded to no more than three significant digits because they contain estimates. | ||||||||||||||||||
| 3May not add to totals shown because of independent rounding. | ||||||||||||||||||
| 4Portland and masonry cement. Data are all reported and are unrounded but are thought to be accurate to no more than three significant digits. | ||||||||||||||||||
| 5Includes one semiwet plant.- | ||||||||||||||||||
| 6Data for the category -Both- have been included in those for -Dry- plants to protect company proprietary information. | ||||||||||||||||||
| 7Includes two grinding plants whose data were included with the integrated plants.- | ||||||||||||||||||
| 8Plants that can operate both wet and dry kilns, whether or not both types were active during the year. Includes plants that converted from wet to dry technology during the year. | ||||||||||||||||||
| 9Plants that did not produce clinker but ground clinker from outside sources. Excludes plants that only made masonry cement or just reground one type of portland cement into another, or which | ||||||||||||||||||
| reported a substantial component of grinding of excess granulated blast furnace slag. Excludes two plants that were reported under -Dry- as noted in footnote 6. | ||||||||||||||||||
| 10Plants at which production of portland cement was by regrinding of one type into another or which reported production only of masonry cement.- | ||||||||||||||||||
Source: United States Geological Survey Mineral Resources Program
See also: Mineral commodity prices
