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: 08/07/2003

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	47.51	23.18	36.96	21.74	21.14	26.23	36.84	44.55	47.74	49.74	52.33	51.18	56.89	58.84	57.26	56.90	55.15	54.39	54.01	50.22	53.97	50.83	49.92	41.27
	2.79	1.47	2.35	1.33	1.36	1.78	2.67	2.91	3.26	2.70	2.56	2.49	2.75	2.09	1.70	1.58	1.95	2.30	2.17	2.23	2.45	2.28	2.59	2.48
	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	0.00	0.00	0.00	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

CENTRL 61754	43.52	21.17	33.66	19.84	19.28	23.80	33.08	40.32	43.10	45.69	48.58	47.66	53.08	55.88	54.96	54.63	52.51	51.40	51.15	47.21	50.60	47.73	46.41	37.89
	-1.20	-0.54	-0.95	-0.57	-0.50	-0.65	-1.09	-1.32	-1.39	-1.35	-1.19	-1.04	-1.06	-0.86	-0.61	-0.69	-0.68	-0.68	-0.70	-0.78	-0.92	-0.82	-0.92	-0.90
	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	0.00	0.00	0.00	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	48.01	23.18	36.80	21.76	21.08	26.12	36.76	45.37	48.69	51.91	55.00	53.56	59.60	62.74	61.20	60.95	58.58	57.06	56.78	52.48	56.67	53.22	51.04	41.57
	3.29	1.46	2.19	1.35	1.30	1.67	2.59	3.74	4.21	4.87	5.23	4.87	5.46	5.99	5.63	5.64	5.39	4.98	4.93	4.50	5.15	4.66	3.72	2.78
	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	0.00	0.00	0.00	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

GENESE 61753	44.22	21.51	34.33	20.20	19.59	24.26	33.75	40.74	43.53	45.68	48.58	48.01	53.39	55.87	54.87	54.48	52.64	51.84	51.38	47.52	50.60	47.90	46.89	38.57
	-0.51	-0.21	-0.28	-0.21	-0.19	-0.19	-0.42	-0.89	-0.95	-1.36	-1.19	-0.68	-0.75	-0.88	-0.70	-0.84	-0.55	-0.25	-0.46	-0.47	-0.92	-0.65	-0.44	-0.22
	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	0.00	0.00	0.00	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	44.12	21.49	34.30	20.22	19.58	24.21	33.86	41.16	43.90	46.30	48.88	47.94	53.24	56.63	54.39	54.13	51.90	50.92	50.69	46.99	50.38	50.01	12.06	25.83
	-0.61	-0.23	-0.31	-0.19	-0.20	-0.24	-0.31	-0.47	-0.58	-0.73	-0.89	-0.76	-0.90	-1.37	-1.18	-1.19	-1.30	-1.16	-1.15	-0.99	-1.14	-1.10	-0.67	-0.33
	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	-5.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.13	29.26	14.52
	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	46.68	22.56	35.85	21.18	20.53	25.41	35.63	43.85	47.10	50.19	53.25	51.83	57.62	60.77	59.38	59.17	56.82	55.32	55.07	50.91	54.94	51.64	49.72	40.51
	1.96	0.85	1.25	0.77	0.75	0.96	1.46	2.21	2.62	3.15	3.48	3.13	3.48	4.02	3.81	3.85	3.62	3.24	3.22	2.93	3.42	3.08	2.39	1.72
	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	0.00	0.00	0.00	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	72.24	58.57	56.10	52.44	61.21	54.45	55.65	53.32	54.67	60.83	56.13	57.75	72.88	64.65	60.41	60.34	58.02	56.37	58.53	52.58	60.56	54.67	53.36	52.66
	4.22	2.01	3.04	1.88	1.82	2.19	3.31	4.60	4.88	5.39	5.35	4.96	5.61	5.44	4.84	5.02	4.83	4.29	4.30	4.44	5.22	4.77	3.87	2.86
	-23.30	-34.84	-18.45	-30.15	-39.61	-27.81	-18.17	-7.08	-5.31	-8.40	-1.01	-4.10	-13.13	-2.46	0.00	0.00	0.00	0.00	-2.38	-0.15	-3.82	-1.35	-2.16	-11.01
	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	45.50	22.09	35.17	20.74	20.14	24.93	34.88	42.27	45.18	47.67	50.52	49.43	55.08	57.56	56.23	55.98	53.98	53.03	52.74	48.86	52.38	49.39	48.09	39.44
	0.78	0.37	0.56	0.33	0.36	0.48	0.71	0.63	0.70	0.63	0.75	0.74	0.94	0.81	0.67	0.66	0.78	0.94	0.90	0.87	0.86	0.83	0.76	0.65
	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	0.00	0.00	0.00	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	47.23	22.81	36.20	21.41	20.74	25.69	36.12	44.54	47.80	50.98	54.02	52.59	58.48	61.62	60.14	59.91	57.56	56.05	55.79	51.57	55.69	52.31	50.22	40.90
	2.50	1.09	1.59	1.00	0.96	1.24	1.95	2.90	3.32	3.94	4.25	3.89	4.34	4.88	4.57	4.60	4.37	3.96	3.95	3.59	4.17	3.75	2.89	2.11
	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	0.00	0.00	0.00	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

N.Y.C. 61761	56.27	37.05	37.57	22.23	21.53	26.72	38.87	56.37	62.84	62.47	64.88	73.39	61.77	90.67	63.23	62.82	60.88	59.87	70.52	69.52	72.98	68.13	54.65	48.29
	4.30	1.95	2.96	1.82	1.76	2.27	3.54	5.00	5.46	6.17	6.56	6.16	6.92	7.52	6.95	6.93	6.76	6.40	6.36	5.74	6.48	5.91	4.79	3.67
	-7.24	-13.39	0.00	0.00	0.00	0.00	-1.16	-9.74	-12.90	-9.27	-8.55	-18.54	-0.70	-26.40	-0.71	-0.58	-0.92	-1.39	-12.31	-15.80	-14.97	-13.67	-2.54	-5.83
	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	44.35	21.61	34.47	20.31	19.68	24.36	34.06	41.29	44.05	46.17	48.76	47.84	53.14	55.51	54.19	53.91	51.75	50.86	50.62	46.95	50.32	47.48	46.48	38.22
	-0.38	-0.11	-0.14	-0.10	-0.10	-0.09	-0.11	-0.35	-0.43	-0.87	-1.01	-0.85	-1.00	-1.24	-1.38	-1.40	-1.44	-1.22	-1.23	-1.03	-1.20	-1.08	-0.84	-0.57
	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	0.00	0.00	0.00	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	46.15	22.49	35.87	21.13	20.52	25.41	35.62	43.25	46.33	48.55	51.16	49.96	55.51	61.00	56.26	55.97	54.10	53.14	52.84	49.08	52.79	53.80	15.00	28.28
	1.42	0.78	1.26	0.72	0.74	0.96	1.45	1.61	1.85	1.51	1.39	1.27	1.37	3.00	0.70	0.65	0.91	1.06	1.00	1.10	1.27	2.69	2.27	2.12
	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	-5.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.13	29.26	14.52
	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	37.40	18.15	29.06	17.18	16.55	20.34	27.98	33.88	36.10	38.74	41.59	40.99	45.55	54.63	47.99	47.81	45.68	44.52	44.47	41.03	43.80	47.66	8.78	20.51
	-7.33	-3.56	-5.55	-3.23	-3.23	-4.11	-6.19	-7.76	-8.38	-8.30	-8.19	-7.71	-8.59	-3.37	-7.58	-7.50	-7.52	-7.56	-7.38	-6.96	-7.72	-3.45	-3.95	-5.65
	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	-5.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.13	29.26	14.52
	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	42.77	20.65	32.93	19.50	18.84	23.22	32.22	39.41	42.14	45.34	48.31	47.22	52.67	60.00	55.06	55.03	52.62	51.15	51.02	47.07	50.54	50.68	10.34	21.48
	-1.96	-1.06	-1.68	-0.91	-0.93	-1.23	-1.95	-2.23	-2.35	-1.70	-1.46	-1.47	-1.47	2.00	-0.51	-0.28	-0.57	-0.93	-0.83	-0.92	-0.98	-0.43	-2.39	-4.68
	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	-5.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.13	29.26	14.52
	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	41.99	20.40	32.69	19.32	18.59	22.85	31.35	37.88	40.36	43.16	46.43	45.86	51.01	54.41	54.04	53.78	51.29	49.93	49.87	45.95	49.00	46.48	44.80	36.52
	-2.73	-1.31	-1.92	-1.09	-1.18	-1.59	-2.82	-3.76	-4.12	-3.88	-3.34	-2.84	-3.13	-2.34	-1.53	-1.54	-1.90	-2.15	-1.97	-2.03	-2.52	-2.08	-2.52	-2.27
	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	0.00	0.00	0.00	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