Grand Coulee Dam

September 2021

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	50523	2105	198	66.70	87.10	87.10	0.00	1276.10	1276.46	960.16	316.30	14.12	9506	1564.95
2	41489	1729	205	69.90	71.90	71.90	0.00	1275.70	1275.81	958.65	317.16	10.33	6951	1565.25
3	40473	1686	208	61.70	69.40	69.30	0.10	1275.30	1275.49	957.53	317.96	7.29	4904	1565.35
4	31982	1333	213	62.40	54.30	54.30	0.00	1275.40	1275.31	955.81	319.50	7.36	4965	1565.50
5	33511	1396	209	62.20	57.10	57.00	0.10	1275.10	1275.26	956.35	318.91	15.60	10680	1566.20
6	36167	1507	209	65.90	62.30	62.20	0.10	1274.80	1274.96	957.75	317.21	15.57	10672	1566.82
7	33431	1393	213	72.60	58.10	58.00	0.10	1275.00	1274.82	957.97	316.85	4.83	3313	1566.94
8	28993	1208	216	66.80	49.50	49.50	0.00	1275.40	1275.14	956.29	318.85	4.17	2832	1566.84
9	29263	1219	216	74.60	52.10	52.10	0.00	1275.90	1275.62	956.18	319.44	4.17	2823	1566.75
10	35429	1476	215	71.70	61.80	61.70	0.10	1276.00	1275.91	957.11	318.80	4.32	2942	1566.72
11	33317	1388	193	72.70	57.10	57.00	0.10	1276.10	1276.03	957.62	318.41	13.70	9474	1567.16
12	24301	1013	170	74.40	40.80	40.80	0.00	1276.60	1276.29	955.97	320.32	13.70	9456	1567.80
13	32927	1372	169	78.90	56.50	56.40	0.10	1277.10	1276.81	957.01	319.80	2.89	1965	1567.97
14	32222	1343	228	75.50	56.20	56.10	0.10	1277.60	1277.31	956.48	320.83	1.91	1252	1567.92
15	33596	1400	218	75.40	57.60	57.60	0.00	1277.90	1277.74	956.98	320.76	5.70	3720	1567.88
16	37318	1555	222	75.80	63.70	63.60	0.10	1278.20	1278.04	957.84	320.20	1.92	1254	1567.82
17	32921	1372	217	81.70	55.40	55.40	0.00	1278.80	1278.40	957.16	321.24	1.93	1258	1567.66
18	27042	1127	227	73.70	46.70	46.70	0.00	1279.30	1278.92	956.83	322.09	5.70	3720	1567.63
19	25858	1077	218	58.20	43.30	43.30	0.00	1279.60	1279.34	956.04	323.30	5.70	3720	1567.68
20	33174	1382	232	69.90	56.10	56.00	0.00	1279.90	1279.74	957.18	322.56	1.99	1293	1567.65
21				79.80	66.00	65.90	0.00	1280.20	1280.06	957.77	322.29			1567.51
22				84.20	63.40	63.40	0.00	1280.60	1280.28	957.48	322.80			1567.48
23				97.50	80.50	80.40	0.00	1281.00	1280.82	957.51	323.31			1567.44
24				95.60	75.10	75.00	0.00	1281.40	1281.13	957.25	323.88			1567.42
25				77.80	57.70	57.60	0.00	1281.70	1281.57	956.12	325.45			1567.53
26				69.60	53.30	53.30	0.00	1282.00	1281.84	956.58	325.26			1567.89
27				71.10	58.30	58.20	0.00	1282.20	1282.07	957.34	324.73			1568.00
28
29
30

TOT	673937		4196
AVG	33697	1404	210	73.57	59.68	59.62	0.03	1277.96	1277.82	957.15	320.67	7.14	4835	1567.10

MAX	50523			97.50	87.10	87.10	0.10	1282.20	1282.07	960.16	325.45	15.60	10680	1568.00
MIN	24301			58.20	40.80	40.80	0.00	1274.80	1274.82	955.81	316.30	1.91	1252	1564.95