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				116.70	139.60	139.60	0.00	1268.90	1269.12	964.61	304.51			1568.31
22				115.70	149.90	149.90	0.00	1267.70	1268.19	965.73	302.46			1568.79
23				107.50	146.20	146.20	0.00	1266.60	1267.14	965.42	301.72			1568.88
24				113.50	142.00	142.00	0.00	1265.80	1266.18	965.08	301.10			1568.88
25				107.80	131.90	131.90	0.00	1265.20	1265.43	963.59	301.84			1568.89
26				100.70	123.90	123.90	0.00	1264.50	1264.71	962.67	302.04			1568.91
27				108.20	118.10	118.10	0.00	1264.20	1264.30	962.09	302.21			1568.83
28

TOT	1396454		4378
AVG	69823	2909	219	107.89	125.62	125.62	0.00	1271.96	1272.17	963.00	309.17	0.12	79	1568.47

MAX	84557			126.30	151.00	151.00	0.00	1277.70	1277.65	966.03	316.73	0.67	444	1568.91
MIN	61189			100.10	105.10	105.10	0.00	1264.20	1264.30	960.79	301.10	0.00	0	1568.29