Hydroelectric
| Table 1.13.B. Net Generation from Hydroelectric (Conventional) Power by State
by Sector, Year-to-Date through December 2010 and 2009 (Thousand Megawatthours) |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Census Division and State |
Total (All Sectors) | Electric Power Sector | Commercial Sector | Industrial Sector | |||||||
| Electric Utilities | Independent Power Producers | ||||||||||
| 2010 | 2009 | Percent Change | 2010 | 2009 | 2010 | 2009 | 2010 | 2009 | 2010 | 2009 | |
| New England | 7,880 | 9,093 | -13.3 | 1,012 | 1,204 | 6,142 | 7,083 | NM | 6 | 720 | 800 |
| Connecticut | 435 | 510 | -14.7 | 36 | 42 | 399 | 467 | -- | -- | -- | -- |
| Maine | 3,664 | 4,212 | -13 | -- | -- | 2,982 | 3,454 | -- | -- | 683 | 757 |
| Massachusetts | 1,034 | 1,201 | -13.9 | 237 | 285 | 783 | 901 | NM | 6 | NM | 9 |
| New Hampshire | 1,482 | 1,680 | -11.8 | 329 | 402 | 1,146 | 1,270 | -- | -- | NM | 9 |
| Rhode Island | NM | 5 | -- | -- | -- | NM | 5 | -- | -- | -- | -- |
| Vermont | 1,261 | 1,486 | -15.2 | 410 | 475 | 828 | 986 | -- | -- | NM | 25 |
| Middle Atlantic | 27,571 | 30,330 | -9.1 | 21,958 | 23,743 | 5,541 | 6,462 | NM | 4 | 68 | 121 |
| New Jersey | 30 | 32 | -7.7 | -- | -- | 30 | 32 | -- | -- | -- | -- |
| New York | 25,201 | 27,615 | -8.7 | 20,898 | 22,590 | 4,231 | 4,900 | NM | 4 | 68 | 121 |
| Pennsylvania | 2,341 | 2,683 | -12.8 | 1,060 | 1,153 | 1,280 | 1,530 | -- | -- | -- | -- |
| East North Central | 3,668 | 3,934 | -6.7 | 3,287 | 3,537 | 215 | 259 | NM | * | 165 | 138 |
| Illinois | 108 | 136 | -20.7 | 40 | 45 | 68 | 91 | -- | -- | -- | -- |
| Indiana | 443 | 503 | -12 | 443 | 503 | -- | -- | -- | -- | -- | -- |
| Michigan | 1,265 | 1,372 | -7.8 | 1,147 | 1,234 | 96 | 113 | -- | -- | NM | 25 |
| Ohio | 459 | 528 | -13 | 459 | 528 | -- | -- | -- | -- | -- | -- |
| Wisconsin | 1,392 | 1,394 | -0.1 | 1,197 | 1,226 | 51 | 55 | NM | * | 143 | 113 |
| West North Central | 11,380 | 9,951 | 14.4 | 11,097 | 9,652 | 158 | 166 | -- | -- | 124 | 134 |
| Iowa | 831 | 971 | -14.4 | 825 | 963 | NM | 8 | -- | -- | -- | -- |
| Kansas | NM | 13 | -- | -- | -- | NM | 13 | -- | -- | -- | -- |
| Minnesota | 752 | 809 | -7 | 487 | 530 | 141 | 145 | -- | -- | 124 | 134 |
| Missouri | 1,528 | 1,817 | -15.9 | 1,528 | 1,817 | -- | -- | -- | -- | -- | -- |
| Nebraska | 449 | 434 | 3.6 | 449 | 434 | -- | -- | -- | -- | -- | -- |
| North Dakota | 2,042 | 1,475 | 38.4 | 2,042 | 1,475 | -- | -- | -- | -- | -- | -- |
| South Dakota | 5,765 | 4,432 | 30.1 | 5,765 | 4,432 | -- | -- | -- | -- | -- | -- |
| South Atlantic | 15,099 | 15,984 | -5.5 | 12,365 | 12,827 | 2,201 | 2,504 | 12 | 15 | 520 | 639 |
| Delaware | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| District of Columbia | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Florida | 181 | 208 | -12.9 | 181 | 208 | -- | -- | -- | -- | -- | -- |
| Georgia | 3,319 | 3,260 | 1.8 | 3,305 | 3,249 | NM | 4 | -- | -- | NM | 8 |
| Maryland | 1,670 | 1,889 | -11.6 | -- | -- | 1,670 | 1,889 | -- | -- | -- | -- |
| North Carolina | 4,670 | 5,171 | -9.7 | 4,630 | 5,126 | NM | 30 | 10 | 14 | NM | 2 |
| South Carolina | 2,372 | 2,332 | 1.7 | 2,322 | 2,277 | 49 | 54 | NM | 1 | -- | -- |
| Virginia | 1,530 | 1,479 | 3.4 | 1,458 | 1,396 | 63 | 72 | -- | -- | NM | 10 |
| West Virginia | 1,355 | 1,646 | -17.7 | 469 | 572 | 388 | 456 | -- | -- | 498 | 619 |
| East South Central | 20,000 | 26,065 | -23.3 | 19,992 | 26,055 | NM | 10 | -- | -- | -- | -- |
| Alabama | 9,089 | 12,535 | -27.5 | 9,089 | 12,535 | -- | -- | -- | -- | -- | -- |
| Kentucky | 2,605 | 3,318 | -21.5 | 2,597 | 3,308 | NM | 10 | -- | -- | -- | -- |
| Mississippi | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Tennessee | 8,306 | 10,212 | -18.7 | 8,306 | 10,212 | -- | -- | -- | -- | -- | -- |
| West South Central | 8,796 | 10,010 | -12.1 | 7,603 | 8,677 | 1,194 | 1,333 | -- | -- | -- | -- |
| Arkansas | 3,761 | 4,193 | -10.3 | 3,714 | 4,141 | 47 | 52 | -- | -- | -- | -- |
| Louisiana | 1,109 | 1,236 | -10.3 | -- | -- | 1,109 | 1,236 | -- | -- | -- | -- |
| Oklahoma | 2,894 | 3,553 | -18.5 | 2,894 | 3,553 | -- | -- | -- | -- | -- | -- |
| Texas | 1,032 | 1,029 | 0.4 | 994 | 983 | 38 | 45 | -- | -- | -- | -- |
| Mountain | 30,972 | 32,787 | -5.5 | 26,638 | 28,225 | 4,334 | 4,562 | -- | -- | -- | -- |
| Arizona | 6,626 | 6,427 | 3.1 | 6,626 | 6,427 | -- | -- | -- | -- | -- | -- |
| Colorado | 1,746 | 1,886 | -7.4 | 1,589 | 1,727 | 157 | 159 | -- | -- | -- | -- |
| Idaho | 9,161 | 10,434 | -12.2 | 8,443 | 9,691 | 718 | 744 | -- | -- | -- | -- |
| Montana | 9,230 | 9,506 | -2.9 | 5,811 | 5,890 | 3,419 | 3,616 | -- | -- | -- | -- |
| Nevada | 2,146 | 2,461 | -12.8 | 2,114 | 2,426 | NM | 35 | -- | -- | -- | -- |
| New Mexico | 253 | 271 | -6.6 | 253 | 271 | -- | -- | -- | -- | -- | -- |
| Utah | 792 | 835 | -5.2 | 784 | 827 | NM | 8 | -- | -- | -- | -- |
| Wyoming | 1,018 | 967 | 5.3 | 1,018 | 967 | -- | -- | -- | -- | -- | -- |
| Pacific Contiguous | 130,277 | 133,854 | -2.7 | 128,337 | 131,925 | 1,868 | 1,882 | 70 | 46 | NM | 2 |
| California | 33,876 | 27,888 | 21.5 | 32,380 | 26,407 | 1,478 | 1,481 | NM | * | -- | -- |
| Oregon | 30,288 | 33,034 | -8.3 | 30,054 | 32,791 | 235 | 243 | -- | -- | -- | -- |
| Washington | 66,112 | 72,933 | -9.4 | 65,903 | 72,727 | 155 | 158 | 53 | 45 | NM | 2 |
| Pacific Noncontiguous | 1,410 | 1,436 | -1.9 | 1,349 | 1,352 | 28 | 49 | -- | -- | NM | 35 |
| Alaska | 1,324 | 1,324 | 0 | 1,324 | 1,324 | -- | -- | -- | -- | -- | -- |
| Hawaii | 86 | 113 | -24 | NM | 29 | 28 | 49 | -- | -- | NM | 35 |
| U.S. Total | 257,052 | 273,445 | -6 | 233,638 | 247,198 | 21,690 | 24,308 | 92 | 71 | 1,632 | 1,868 |
|
* = Value is less than half of the smallest unit of measure (e.g., for values with no decimals, the smallest unit is "1" then values under 0.5 are shown as "*".) NM = Not meaningful due to large relative standard error or excessive percentage change. Notes: See Glossary for definitions. Values for 2009 and 2010 are preliminary. - See Technical Notes for a discussion of the sample design for the Form EIA-923, Form EIA-906 and Form EIA-920. Negative generation denotes that electric power consumed for plant use exceeds gross generation. Totals may not equal sum of components because of independent rounding. Percent difference is calculated before rounding. Source: U.S. Energy Information Administration, Form EIA-923, "Power Plant Operations Report." |
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| Water is currently the leading renewable energy source used by electric utilities to generate electric power. Hydroelectric plants operate where suitable waterways are available; many of the best of these sites have already been developed. Generating electricity using water has several advantages. The major advantage is that water is a source of cheap power. In addition, because there is no fuel combustion, there is little air pollution in comparison with fossil fuel plants and limited thermal pollution compared with nuclear plants. Like other energy sources, the use of water for generation has limitations, including environmental impacts caused by damming rivers and streams, which affects the habitats of the local plant, fish, and animal life.
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