Grand Coulee Dam

April 2026

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	Banks Lake Pump kcfs	Banks Lake Pump MWh	Banks Lake Elev
1	61450	2560	190	117.50	114.90	114.90	0.00	1251.20	1251.21	962.70	288.51	4.50	3360	1568.97
2	48706	2029	174	119.20	95.00	95.00	0.00	1251.80	1251.41	961.17	290.24	4.64	3456	1568.96
3	57189	2383	174	118.50	108.50	108.50	0.00	1252.00	1251.87	960.78	291.09	4.50	3360	1568.90
4	56198	2342	189	119.20	109.20	109.20	0.00	1252.20	1251.86	961.92	289.94	4.50	3360	1568.85
5	54854	2286	190	114.80	104.10	104.10	0.00	1252.30	1252.16	961.11	291.05	4.50	3360	1568.79
6				113.60	105.10	105.10	0.00	1252.50	1252.31	961.15	291.16			1568.60
7				112.20	85.60	85.60	0.00	1253.30	1252.81	959.44	293.37			1568.15
8				113.30	99.70	99.70	0.00	1253.60	1253.28	961.30	291.98			1568.00
9				109.80	95.60	95.60	0.00	1253.80	1253.59	960.90	292.69			1567.83
10				110.70	112.20	112.20	0.00	1253.70	1253.63	962.20	291.43			1567.70
11				121.10	113.60	113.60	0.00	1253.60	1253.57	962.00	291.57			1567.89
12				117.70	129.40	129.40	0.00	1253.00	1253.16	963.65	289.51			1568.11
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TOT	278397		917
AVG	55679	2320	183	115.63	106.08	106.08	0.00	1252.75	1252.57	961.53	291.05	4.53	3379	1568.40

MAX	61450			121.10	129.40	129.40	0.00	1253.80	1253.63	963.65	293.37	4.64	3456	1568.97
MIN	48706			109.80	85.60	85.60	0.00	1251.20	1251.21	959.44	288.51	4.50	3360	1567.70