Bonneville Dam & Lake on Columbia River
May 2023
Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet | Project Average Tailwater | 2nd Powerhouse Total MWh | 2nd Powerhouse Flow kcfs |
1 | 6236 | 260 | 96 | 222.40 | 224.40 | 62.80 | 149.20 | 74.50 | 74.50 | 18.10 | 56.40 | 18.10 | 6236 | 62.70 |
2 | 9838 | 410 | 96 | 259.50 | 265.50 | 104.30 | 148.90 | 73.90 | 74.20 | 20.60 | 53.60 | 20.50 | 8899 | 94.50 |
3 | 13305 | 554 | 96 | 305.20 | 309.20 | 149.00 | 147.80 | 73.50 | 73.50 | 23.10 | 50.40 | 22.70 | 8926 | 101.00 |
4 | 14937 | 622 | 96 | 347.40 | 330.40 | 169.50 | 148.50 | 75.20 | 74.10 | 24.50 | 49.60 | 23.90 | 8693 | 100.10 |
5 | 15666 | 653 | 96 | 330.10 | 340.10 | 178.30 | 149.40 | 74.20 | 74.60 | 25.20 | 49.40 | 24.60 | 8709 | 100.60 |
6 | 16603 | 692 | 96 | 354.30 | 356.30 | 195.30 | 148.60 | 74.00 | 74.10 | 25.80 | 48.30 | 25.20 | 9095 | 108.50 |
7 | 16864 | 703 | 96 | 366.30 | 361.30 | 200.10 | 148.80 | 74.60 | 74.10 | 26.20 | 47.90 | 25.60 | 9351 | 112.70 |
8 | 16275 | 678 | 96 | 351.00 | 351.00 | 189.70 | 148.80 | 74.60 | 74.40 | 25.80 | 48.60 | 25.20 | 8548 | 100.80 |
9 | 16431 | 685 | 96 | 358.90 | 350.90 | 188.50 | 150.00 | 75.40 | 75.20 | 25.70 | 49.50 | 25.10 | 8380 | 97.30 |
10 | 16920 | 705 | 96 | 350.60 | 360.60 | 198.90 | 149.30 | 74.00 | 74.50 | 26.10 | 48.40 | 25.50 | 9149 | 109.00 |
11 | 16272 | 678 | 96 | 350.30 | 353.30 | 191.50 | 149.40 | 73.40 | 74.10 | 25.70 | 48.40 | 25.10 | 8823 | 105.60 |
12 | 14689 | 612 | 96 | 335.60 | 330.60 | 169.20 | 149.00 | 74.10 | 73.70 | 24.70 | 49.00 | 24.10 | 8278 | 97.00 |
13 | 14895 | 621 | 96 | 327.20 | 332.20 | 171.10 | 148.70 | 73.50 | 73.50 | 24.40 | 49.10 | 23.90 | 8261 | 96.70 |
14 | 15483 | 645 | 96 | 344.60 | 341.60 | 181.00 | 148.20 | 73.80 | 73.10 | 24.80 | 48.30 | 24.30 | 8752 | 104.10 |
15 | 16775 | 699 | 96 | 361.30 | 363.30 | 201.70 | 149.20 | 73.60 | 73.40 | 25.80 | 47.60 | 25.20 | 9384 | 114.70 |
16 | 17733 | 739 | 96 | 400.60 | 398.60 | 225.30 | 160.90 | 73.60 | 73.50 | 27.60 | 45.90 | 27.00 | 9797 | 125.60 |
17 | 17601 | 733 | 96 | 426.20 | 426.20 | 233.20 | 180.60 | 73.70 | 73.70 | 29.00 | 44.70 | 28.20 | 9387 | 124.00 |
18 | 12515 | 521 | 96 | 422.30 | 424.30 | 165.60 | 246.30 | 73.60 | 73.60 | 29.00 | 44.60 | 28.50 | 6209 | 83.00 |
19 | 15773 | 657 | 96 | 423.60 | 425.60 | 209.80 | 203.40 | 73.20 | 73.50 | 29.10 | 44.40 | 28.50 | 9239 | 123.60 |
20 | 17346 | 723 | 96 | 434.00 | 420.00 | 227.90 | 179.70 | 74.60 | 73.60 | 28.90 | 44.70 | 28.20 | 9455 | 124.90 |
21 | | | | 418.80 | 421.80 | 212.30 | 197.20 | 74.50 | 74.70 | 29.00 | 45.70 | 28.20 | | 108.60 |
22 | | | | 427.50 | 432.50 | 209.90 | 210.20 | 74.10 | 74.20 | 29.40 | 44.80 | 28.70 | | 104.50 |
23 | | | | 421.70 | 421.70 | 216.00 | 193.30 | 74.00 | 73.60 | 28.90 | 44.70 | 28.30 | | 110.60 |
24 | | | | 400.90 | 394.90 | 216.60 | 166.00 | 74.30 | 74.30 | 27.80 | 46.50 | 27.10 | | 114.30 |
25 | | | | 371.60 | 369.60 | 206.00 | 151.20 | 74.80 | 74.50 | 26.40 | 48.10 | 25.80 | | 115.20 |
26 | | | | 338.90 | 348.90 | 187.10 | 149.30 | 74.00 | 73.90 | 25.30 | 48.60 | 24.70 | | 103.10 |
27 | | | | 301.90 | 290.90 | 127.50 | 151.10 | 75.00 | 74.20 | 22.50 | 51.70 | 22.30 | | 95.30 |
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30 | | | | | | | | | | | | | | |
31 | | | | | | | | | | | | | | |
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TOT | 302157 | | 1920 | | | | | | | | | | | |
AVG | 15108 | 629 | 96 | 361.21 | 360.95 | 184.74 | 163.81 | 74.14 | 74.01 | 25.90 | 48.11 | 25.35 | 8679 | 105.11 |
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MAX | 17733 | | | 434.00 | 432.50 | 233.20 | 246.30 | 75.40 | 75.20 | 29.40 | 56.40 | 28.70 | 9797 | 125.60 |
MIN | 6236 | | | 222.40 | 224.40 | 62.80 | 147.80 | 73.20 | 73.10 | 18.10 | 44.40 | 18.10 | 6209 | 62.70 |