Table 1: Annual net generation from hydroelectric power plants by state (GWh)

Source: US Energy Information Administration report April 2009
Note: The electric power sector comprises electricity only and combined heat and power (CHP) plants whose primary business is to sell electricity, or electricity and heat, to the public.
NM = Not meaningful due to large relative standard error or excessive percentage change.

Region and state Total (all sectors) Electric Power Sector
Electric Utilities Independent power producers
Year to January 2009 Year to January 2008 Percent change 2009 2008 2009 2008
New England 717 667 7.4 94 95 549 505
Connecticut NM NM — NM NM NM NM
Maine 384 359 6.7 — — 314 296
Massachusetts 93 84 10.4 NM NM 71 65
New Hampshire 111 127 -12.9 28 36 82 90
Rhode Island NM NM — — — NM NM
Vermont 88 64 38.6 NM 38 NM NM
Middle Atlantic 2,541 2,536 0.2 1,951 1,990 582 539
New Jersey NM NM — — — NM NM
New York 2,313 2,267 2 1,856 1,851 448 409
Pennsylvania 225 267 -15.5 95 139 130 127
East North Central 321 NM — 290 NM NM NM
Illinois NM NM — NM NM NM NM
Indiana 47 44 6.6 47 44 — —
Michigan 95 NM — 87 NM NM NM
Ohio 45 44 1.6 45 44 — —
Wisconsin 120 NM — 105 NM NM NM
West North Central 666 583 14.2 654 566 NM NM
Iowa 65 NM — 65 NM NM —
Kansas NM NM — — — NM NM
Minnesota 49 NM — 38 NM NM NM
Missouri 111 73 53.1 111 73 — —
Nebraska 33 NM — 33 NM — —
North Dakota 132 115 14.7 132 115 — —
South Dakota 275 254 8.4 275 254 — —
South Atlantic 1,367 1,092 25.2 1,091 642 216 367
Delaware — — — — — — —
District of Columbia — — — — — — —
Florida NM NM — NM NM — —
Georgia 237 180 31.6 234 178 NM NM
Maryland 155 287 -46 — — 155 287
North Carolina 491 275 78.4 487 218 NM 26
South Carolina 182 109 66.8 177 106 NM NM
Virginia 141 92 52.9 133 86 NM NM
West Virginia 143 133 6.9 NM 40 45 45
East South Central 2,424 1,166 107.8 2,423 1,126 NM NM
Alabama 1,158 539 114.8 1,158 539 — —
Kentucky 328 201 63.2 327 201 NM NM
Mississippi — — — — — — —
Tennessee 938 427 120 938 386 — —
West South Central 719 643 11.8 613 563 106 80
Arkansas 284 235 21 284 235 NM NM
Louisiana 101 75 34.1 — — 101 75
Oklahoma 182 218 -16.4 182 218 — —
Texas 152 115 32 147 110 NM NM
Mountain 2,392 2,279 5 2,082 2,039 310 NM
Arizona 616 644 -4.3 616 644 — —
Colorado 140 NM — 130 NM NM NM
Idaho 746 638 16.8 714 596 31 NM
Montana 628 474 32.7 360 303 268 171
Nevada 133 44 198.5 133 44 — —
New Mexico NM NM — NM NM — —
Utah 47 NM — 47 NM NM NM
Wyoming 61 NM — 61 NM — —
Pacific Contiguous 12,233 10,911 12.1 12,122 10,817 103 89
California 1,093 995 9.9 1,029 940 64 55
Oregon 3,715 3,267 13.7 3,692 3,246 23 21
Washington 7,425 6,649 11.7 7,401 6,631 NM NM
Pacific Non-contiguous 97 NM — 91 NM NM NM
Alaska 90 NM — 90 NM — —
Hawaii NM NM — NM NM NM NM
U.S. Total 23,476 20,340 15.4 21,411 18,270 1,890 1,847