US Army Corps of Engineers

Grand Coulee Dam

January 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetBanks Lake Pump kcfsBanks Lake Pump MWhBanks Lake Elev
1 52051 2169 144 113.30 86.30 86.30 0.00 1286.90 1286.71 959.70 327.01 0.00 0 1567.96
2 63470 2645 144 121.90 106.50 106.50 0.00 1287.30 1287.16 961.23 325.93 0.00 0 1568.06
3 64261 2678 144 101.40 107.50 107.50 0.00 1287.20 1287.29 960.96 326.33 0.00 0 1567.96
4 62592 2608 144 110.80 104.70 104.70 0.00 1287.30 1287.25 961.24 326.01 0.00 0 1568.01
5 60035 2501 144 109.20 100.70 100.70 0.00 1287.50 1287.46 960.88 326.58 0.00 0 1568.00
6 70850 2952 144 111.90 118.40 118.40 0.00 1287.40 1287.48 962.37 325.11 0.00 0 1568.00
7 75383 3141 144 111.40 126.90 126.90 0.00 1287.00 1287.08 963.24 323.84 0.00 0 1568.01
8 78047 3252 144 114.50 131.50 131.50 0.00 1286.60 1287.75 963.79 323.96 0.00 0 1568.01
9 76076 3170 144 117.00 127.80 127.80 0.00 1286.30 1286.38 963.60 322.78 0.00 0 1568.00
10 66700 2779 144 103.80 111.40 111.40 0.00 1286.10 1286.19 961.58 324.61 0.00 0 1568.01
11 68683 2862 144 111.40 115.00 115.00 0.00 1286.00 1286.03 961.76 324.27 0.00 0 1568.02
12 109.40 119.80 119.80 0.00 1285.70 1285.78 962.20 323.58 1568.09
13 115.20 127.20 127.20 0.00 1285.40 1285.51 962.73 322.78 1568.05
14 121.80 131.00 131.00 0.00 1285.20 1285.35 963.38 321.97 1568.06
15 112.10 134.80 134.80 0.00 1284.60 1284.88 963.77 321.11 1568.04
16 113.80 120.90 120.90 0.00 1284.50 1284.53 962.45 322.08 1568.09
17 101.20 108.30 108.30 0.00 1284.30 1284.32 961.03 323.29 1568.03
18 109.50 117.00 117.00 0.00 1284.10 1284.13 961.70 322.43 1568.09
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TOT738148  1584           
AVG 67104 2796 144 111.64 116.43 116.43 0.00 1286.08 1286.18 962.09 324.09 0.00 0 1568.03
MAX 78047   121.90 134.80 134.80 0.00 1287.50 1287.75 963.79 327.01 0.00 0 1568.09
MIN 52051   101.20 86.30 86.30 0.00 1284.10 1284.13 959.70 321.11 0.00 0 1567.96