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	54807	2284	191	113.60	105.10	105.10	0.00	1252.50	1252.31	961.15	291.16	2.30	1707	1568.60
7	43778	1824	201	112.20	85.60	85.60	0.00	1253.30	1252.81	959.44	293.37	1.66	1176	1568.15
8	52886	2204	186	113.30	99.70	99.70	0.00	1253.60	1253.28	961.30	291.98	4.97	3441	1568.00
9	50945	2123	183	109.80	95.60	95.60	0.00	1253.80	1253.59	960.90	292.69	4.62	3389	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
13				120.80	106.80	106.80	0.00	1253.10	1252.92	961.39	291.53			1568.31
14				122.00	109.70	109.70	0.00	1253.20	1253.13	961.45	291.68			1568.56
15				124.80	107.50	107.50	0.00	1253.50	1253.26	961.05	292.21			1568.64
16				117.90	101.30	101.30	0.00	1253.70	1253.46	961.25	292.21			1568.77
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TOT	480813		1678
AVG	53424	2226	186	117.07	106.14	106.14	0.00	1252.91	1252.73	961.47	291.26	4.02	2957	1568.44

MAX	61450			124.80	129.40	129.40	0.00	1253.80	1253.63	963.65	293.37	4.97	3456	1568.97
MIN	43778			109.80	85.60	85.60	0.00	1251.20	1251.21	959.44	288.51	1.66	1176	1567.70