Grand Coulee Dam

February 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	63155	2631	212	109.60	106.50	106.50	0.00	1277.70	1277.65	960.92	316.73	0.00	0	1568.42
2	72048	3002	213	107.30	124.50	124.50	0.00	1277.20	1277.51	962.55	314.96	0.23	151	1568.29
3	68830	2868	268	101.30	120.40	120.40	0.00	1276.70	1276.90	962.35	314.55	0.15	98	1568.30
4	61264	2553	280	107.70	105.10	105.10	0.00	1276.80	1276.70	960.79	315.91	0.04	22	1568.30
5	64678	2695	247	104.80	113.60	113.60	0.00	1276.50	1276.63	961.73	314.90	0.20	153	1568.31
6	68020	2834	246	100.10	117.80	117.80	0.00	1276.10	1276.14	962.33	313.81	0.00	0	1568.30
7	61189	2550	242	100.50	106.20	106.20	0.00	1275.90	1275.98	961.00	314.98	0.00	0	1568.32
8	64351	2681	248	100.70	113.40	113.40	0.00	1275.60	1275.86	961.67	314.19	0.00	0	1568.31
9	72400	3017	216	103.50	124.70	124.70	0.00	1275.00	1275.35	962.55	312.80	0.49	327	1568.37
10	73343	3056	194	104.60	127.40	127.40	0.00	1274.40	1274.62	962.95	311.67	0.67	444	1568.37
11	67471	2811	197	103.50	118.20	118.20	0.00	1274.00	1274.03	962.24	311.79	0.21	145	1568.37
12	70618	2942	192	102.30	123.00	123.00	0.00	1273.40	1273.64	962.52	311.12	0.36	242	1568.42
13	69942	2914	195	105.10	122.90	122.90	0.00	1272.90	1273.12	962.49	310.63	0.00	0	1568.42
14	63672	2653	192	102.10	111.30	111.30	0.00	1272.70	1272.80	961.57	311.23	0.00	0	1568.42
15	64142	2673	192	104.50	112.60	112.60	0.00	1272.40	1272.52	961.88	310.64	0.00	0	1568.41
16	81633	3401	192	106.90	143.60	143.60	0.00	1271.40	1271.93	964.78	307.15	0.00	0	1568.39
17	75035	3126	209	112.90	131.50	131.50	0.00	1270.90	1271.17	963.83	307.34	0.00	0	1568.37
18	74186	3091	213	118.40	130.80	130.80	0.00	1270.60	1270.74	963.33	307.41	0.00	0	1568.34
19	75920	3163	219	120.80	135.70	135.70	0.00	1270.20	1270.38	964.17	306.21	0.00	0	1568.33
20	84557	3523	211	126.30	151.00	151.00	0.00	1269.50	1269.75	966.03	303.72	0.00	0	1568.31
21	78619	3276	212	116.70	139.60	139.60	0.00	1268.90	1269.12	964.61	304.51	0.59	440	1568.31
22	84100	3504	208	115.70	149.90	149.90	0.00	1267.70	1268.19	965.73	302.46	5.79	4242	1568.79
23	80738	3364	198	107.50	146.20	146.20	0.00	1266.60	1267.14	965.42	301.72	0.92	695	1568.88
24	76885	3204	184	113.50	142.00	142.00	0.00	1265.80	1266.18	965.08	301.10	0.00	0	1568.88
25	72444	3018	187	107.80	131.90	131.90	0.00	1265.20	1265.43	963.59	301.84	0.00	0	1568.89
26	68659	2861	222	100.70	123.90	123.90	0.00	1264.50	1264.71	962.67	302.04	0.10	70	1568.91
27	65808	2742	230	108.20	118.10	118.10	0.00	1264.20	1264.30	962.09	302.21	0.00	0	1568.83
28	71988	3000	220	103.40	130.00	130.00	0.00	1263.40	1263.80	963.47	300.33	0.37	277	1568.89

TOT	1995695		6039
AVG	71275	2970	216	107.73	125.78	125.78	0.00	1271.65	1271.87	963.01	308.86	0.36	261	1568.48

MAX	84557			126.30	151.00	151.00	0.00	1277.70	1277.65	966.03	316.73	5.79	4242	1568.91
MIN	61189			100.10	105.10	105.10	0.00	1263.40	1263.80	960.79	300.33	0.00	0	1568.29