P-4A

Page Ref: P-4A

Time Weighted/Integrated Real Time LBMP - Zonal

--- LBMP $

--- Marginal Cost of Losses

--- Marginal Cost of Congestion

--- Scarcity Pricing In Effect (Y/N)

Zonal Prices

Date: 09/01/2004

Name PTID	00:00 EDT	01:00 EDT	02:00 EDT	03:00 EDT	04:00 EDT	05:00 EDT	06:00 EDT	07:00 EDT	08:00 EDT	09:00 EDT	10:00 EDT	11:00 EDT	12:00 EDT	13:00 EDT	14:00 EDT	15:00 EDT	16:00 EDT	17:00 EDT	18:00 EDT	19:00 EDT	20:00 EDT	21:00 EDT	22:00 EDT	23:00 EDT

CAPITL 61757	59.60	58.90	52.79	33.38	38.48	51.57	47.56	51.06	55.25	53.92	63.87	59.05	62.46	56.54	56.16	61.75	56.22	54.03	51.93	53.37	54.13	50.71	51.64	45.47
	2.80	2.90	2.46	1.55	1.67	2.22	2.14	2.58	2.76	2.12	2.67	1.80	1.86	1.35	1.50	0.99	0.80	0.59	0.89	1.53	1.50	1.38	2.12	2.22
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	-0.01	0.00	0.00	0.00	0.00	0.00	-0.21	-0.77	-0.34	-0.35	-0.01	-0.03	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

CENTRL 61754	55.75	54.48	48.89	31.06	35.82	48.11	44.41	47.42	51.44	50.80	60.09	56.36	59.71	54.44	53.73	59.25	54.35	52.34	50.25	50.88	51.81	48.56	48.58	42.27
	-1.05	-1.52	-1.43	-0.77	-0.98	-1.24	-1.01	-1.06	-1.08	-1.00	-1.11	-0.89	-0.89	-0.74	-0.71	-0.68	-0.70	-0.72	-0.78	-0.94	-0.82	-0.76	-0.93	-0.98
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	-0.03	0.00	0.00	0.00	0.00	0.00	0.01	0.05	0.02	0.03	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

DUNWOD 61760	60.37	59.11	53.17	33.65	38.93	52.50	48.46	52.41	57.03	56.84	67.21	63.13	66.87	61.10	60.86	68.77	61.99	60.02	56.32	57.06	57.69	53.85	53.65	46.58
	3.58	3.12	2.85	1.82	2.12	3.15	3.04	3.93	4.53	5.03	6.01	5.88	6.26	5.91	5.73	6.28	5.81	5.80	5.26	5.15	5.05	4.53	4.13	3.33
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	-0.01	0.00	0.00	0.00	0.00	0.00	-0.67	-2.50	-1.10	-1.13	-0.03	-0.09	-0.01	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

GENESE 61753	55.27	54.59	48.84	30.89	35.79	48.01	44.35	46.30	50.82	50.06	59.31	55.69	59.13	53.63	52.80	58.17	53.49	51.29	49.33	50.21	51.33	48.17	48.37	42.25
	-1.53	-1.41	-1.48	-0.94	-1.02	-1.34	-1.07	-1.51	-1.65	-1.74	-1.89	-1.55	-1.48	-1.56	-1.64	-1.76	-1.56	-1.77	-1.71	-1.60	-1.30	-1.15	-1.14	-1.00
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.68	0.02	0.00	0.00	0.00	0.00	0.00	0.02	0.06	0.03	0.03	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

H Q 61844	55.69	31.07	33.42	32.90	36.13	48.43	44.51	47.24	51.19	50.45	59.63	55.88	59.27	53.80	52.96	58.42	53.63	51.64	49.67	50.42	51.31	47.97	48.08	42.09
	-1.10	-0.30	-0.46	-0.32	-0.68	-0.92	-0.90	-1.25	-1.30	-1.35	-1.57	-1.36	-1.34	-1.39	-1.50	-1.58	-1.45	-1.45	-1.37	-1.40	-1.32	-1.35	-1.43	-1.16
	0.00	18.91	12.09	1.86	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.02	-0.01	-0.01	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

HUD VL 61758	59.20	57.93	52.05	32.97	38.12	51.25	47.23	50.87	55.34	55.02	65.07	61.05	64.63	59.12	58.44	64.43	59.15	57.17	54.83	55.50	56.14	52.40	52.20	45.33
	2.41	1.93	1.73	1.14	1.31	1.90	1.81	2.39	2.84	3.22	3.87	3.81	4.02	3.93	3.97	4.37	4.04	4.05	3.80	3.68	3.51	3.07	2.69	2.08
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	-0.01	0.00	0.00	0.00	0.00	0.00	-0.02	-0.07	-0.03	-0.03	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

LONGIL 61762	61.42	60.22	54.29	40.51	54.80	55.69	55.38	55.98	60.03	64.43	67.92	65.19	81.68	69.17	75.08	70.07	84.06	83.17	61.11	64.64	63.33	57.56	54.89	60.41
	4.38	4.22	3.97	2.64	3.08	4.38	3.88	4.81	5.08	5.77	6.69	6.69	7.18	6.57	6.33	6.72	6.32	6.37	5.48	5.48	5.33	4.82	4.49	4.04
	-0.25	0.00	0.00	-6.03	-14.92	-1.96	-6.08	-2.68	-2.45	-6.86	-0.02	-1.25	-13.89	-7.42	-14.30	-3.37	-22.66	-23.71	-4.59	-7.33	-5.37	-3.41	-0.89	-13.12
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MHK VL 61756	57.60	56.83	50.97	32.25	37.28	49.99	46.00	49.15	53.15	52.24	61.80	57.70	61.06	55.61	54.94	60.42	55.46	53.48	51.43	52.27	53.07	49.66	50.07	43.78
	0.80	0.84	0.65	0.41	0.47	0.64	0.58	0.66	0.66	0.43	0.60	0.46	0.45	0.43	0.48	0.42	0.37	0.38	0.40	0.45	0.44	0.33	0.56	0.52
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.02	-0.01	-0.01	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MILLWD 61759	59.68	58.52	52.63	33.31	38.53	51.94	47.93	51.76	56.32	56.10	66.34	62.29	65.99	60.34	59.95	67.27	60.96	59.01	55.71	56.39	57.02	53.22	53.02	46.03
	2.89	2.52	2.31	1.48	1.72	2.59	2.51	3.28	3.82	4.29	5.13	5.05	5.38	5.15	5.02	5.53	5.11	5.13	4.65	4.51	4.38	3.90	3.50	2.78
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	-0.01	0.00	0.00	0.00	0.00	0.00	-0.47	-1.75	-0.77	-0.79	-0.02	-0.06	-0.01	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

N.Y.C. 61761	66.18	61.34	56.83	42.71	46.52	56.41	53.41	58.93	60.09	60.10	68.61	64.74	75.26	72.08	72.37	80.71	73.37	71.68	69.27	69.26	76.60	72.49	72.26	53.87
	4.31	3.79	3.51	2.25	2.64	3.92	3.79	4.90	5.59	6.16	7.31	7.06	7.50	7.03	6.71	7.33	6.78	6.76	6.03	5.99	5.95	5.39	4.99	4.08
	-5.08	-1.55	-3.00	-8.62	-7.07	-3.14	-4.19	-5.53	-2.02	-2.14	-0.10	-0.43	-7.15	-9.87	-11.21	-13.39	-11.51	-11.83	-12.20	-11.45	-18.02	-17.78	-17.76	-6.54
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	55.95	55.37	49.63	31.34	36.28	48.65	44.66	47.38	51.33	50.49	59.70	55.90	59.29	53.85	52.98	58.38	53.58	51.60	49.65	50.45	51.33	47.95	48.16	42.24
	-0.84	-0.63	-0.70	-0.49	-0.53	-0.70	-0.76	-1.11	-1.16	-1.32	-1.50	-1.34	-1.31	-1.34	-1.48	-1.64	-1.51	-1.50	-1.38	-1.37	-1.30	-1.37	-1.36	-1.01
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	-0.03	-0.01	-0.01	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NPX 61845	59.34	33.43	35.86	34.90	38.34	51.42	47.37	50.95	55.06	54.03	63.82	59.21	62.64	56.86	56.70	63.19	57.12	55.03	52.42	53.71	54.33	50.86	51.57	45.33
	2.55	2.06	1.98	1.68	1.53	2.07	1.95	2.47	2.56	2.23	2.62	1.97	2.03	1.67	1.76	1.44	1.27	1.14	1.37	1.83	1.69	1.54	2.05	2.08
	0.00	18.91	12.09	1.86	0.00	0.00	0.00	0.01	-0.01	0.00	0.00	0.00	0.00	0.00	-0.48	-1.77	-0.78	-0.80	-0.02	-0.06	-0.01	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

O H 61846	52.51	25.03	28.00	28.31	34.38	35.00	32.00	43.49	47.50	47.46	55.93	53.19	56.55	51.74	50.97	56.77	52.43	50.55	48.50	48.83	49.78	46.86	46.11	40.05
	-4.28	-6.34	-5.88	-4.91	-2.43	-5.79	-6.47	-4.41	-4.90	-4.34	-5.28	-4.06	-4.06	-3.45	-3.47	-3.14	-2.61	-2.51	-2.54	-2.99	-2.86	-2.46	-3.41	-3.20
	0.00	18.91	12.09	1.86	0.00	7.84	9.10	0.59	0.08	0.00	0.00	0.00	0.00	0.00	0.02	0.08	0.03	0.04	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

PJM 61847	53.54	26.44	25.44	25.00	25.20	30.00	42.84	45.06	49.15	48.83	57.64	54.31	57.49	52.78	52.13	57.76	53.22	51.53	49.41	49.69	50.48	47.17	46.71	40.45
	-3.25	-4.93	-3.45	-4.03	-4.27	-2.38	-2.58	-3.06	-3.31	-2.97	-3.56	-2.93	-3.11	-2.40	-2.30	-2.12	-1.81	-1.51	-1.62	-2.12	-2.15	-2.16	-2.81	-2.80
	0.00	18.91	17.08	6.05	5.79	16.25	0.00	0.37	0.03	0.00	0.00	0.00	0.00	0.00	0.03	0.11	0.05	0.05	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

WEST 61752	52.14	51.46	46.52	29.47	34.22	45.66	41.68	43.12	47.12	47.17	55.64	52.98	56.34	51.60	50.84	56.65	52.28	50.34	48.28	48.52	49.52	46.61	45.78	39.72
	-4.65	-4.53	-3.81	-2.36	-2.59	-3.69	-3.74	-4.76	-5.26	-4.63	-5.57	-4.27	-4.27	-3.59	-3.59	-3.26	-2.76	-2.71	-2.76	-3.30	-3.12	-2.72	-3.74	-3.53
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.61	0.11	0.00	0.00	0.00	0.00	0.00	0.02	0.07	0.03	0.04	0.00	0.00	0.00	0.00	0.00	0.00
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N