Grand Coulee Dam

September 2023

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	32202	1342	187	79.20	58.00	57.90	0.10	1277.20	1277.09	957.62	319.47	12.60	8430	1564.55
2	35063	1461	186	76.20	62.60	62.50	0.10	1277.30	1277.27	958.05	319.22	11.72	7831	1565.02
3	31840	1327	184	64.70	58.70	58.60	0.10	1277.10	1277.12	957.20	319.92	10.90	7248	1565.44
4	29799	1242	190	69.10	55.60	55.50	0.10	1277.20	1277.16	956.48	320.68	10.85	7246	1565.81
5	34012	1417	186	66.50	62.40	62.30	0.10	1277.00	1277.10	957.19	319.91	11.67	7847	1566.34
6	27593	1150	183	72.60	54.30	54.20	0.10	1277.30	1277.16	957.29	319.87	5.06	3487	1566.35
7	28645	1194	192	69.50	56.70	56.60	0.10	1277.60	1277.49	956.68	320.81	3.40	2277	1566.19
8	23963	998	189	72.00	48.40	48.30	0.10	1278.10	1277.80	956.11	321.69	6.17	4095	1566.22
9	27249	1135	172	65.80	51.30	51.20	0.10	1278.20	1278.13	955.61	322.52	10.70	7200	1566.62
10	26648	1110	169	60.30	49.20	49.10	0.10	1278.20	1278.10	955.88	322.22	10.70	7200	1567.00
11	26562	1107	178	62.70	50.10	50.00	0.10	1278.40	1278.26	956.40	321.86	3.04	2034	1566.87
12	23713	988	177	60.80	46.70	46.60	0.10	1278.70	1278.52	956.63	321.89	3.41	2244	1566.75
13	21683	903	176	60.00	45.90	45.80	0.10	1279.00	1278.82	955.96	322.86	2.65	1733	1566.57
14	21745	906	178	66.10	45.90	45.80	0.10	1279.40	1279.18	955.98	323.20	3.58	2344	1566.36
15	23482	978	175	60.40	44.80	44.70	0.10	1279.70	1279.54	956.56	322.98	4.61	3022	1566.31
16	25619	1067	169	57.70	47.70	47.60	0.10	1279.70	1279.69	956.80	322.89	11.10	7270	1566.74
17	26582	1108	173	57.20	50.00	49.90	0.10	1279.60	1279.60	957.01	322.59	11.08	7271	1567.12
18	24162	1007	222	53.50	41.00	40.90	0.10	1279.80	1279.65	956.42	323.23	4.08	2680	1567.01
19	27449	1144	233	59.30	46.50	46.40	0.10	1280.10	1279.88	956.65	323.23	3.65	2383	1566.86
20				57.40	44.90	44.80	0.10	1280.30	1280.11	956.43	323.68			1566.72
21				58.20	47.30	47.20	0.10	1280.50	1280.37	956.54	323.83			1566.62
22				62.30	44.90	44.80	0.10	1280.80	1280.59	956.86	323.73			1566.49
23				59.30	34.60	34.50	0.10	1281.10	1280.95	955.27	325.68			1567.01
24				58.40	47.20	47.10	0.10	1281.10	1281.09	955.72	325.37			1567.55
25				64.20	43.90	43.80	0.10	1281.50	1281.28	955.90	325.38			1567.54
26				57.50	45.70	45.60	0.10	1281.70	1281.59	955.84	325.75			1567.39
27
28
29
30

TOT	518011		3519
AVG	27264	1136	185	63.50	49.40	49.30	0.10	1279.10	1278.98	956.50	322.48	7.42	4939	1566.52

MAX	35063			79.20	62.60	62.50	0.10	1281.70	1281.59	958.05	325.75	12.60	8430	1567.55
MIN	21683			53.50	34.60	34.50	0.10	1277.00	1277.09	955.27	319.22	2.65	1733	1564.55