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: 08/18/2003

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	52.89	41.96	34.18	27.70	27.36	31.87	33.28	46.97	50.61	54.05	53.95	55.01	51.17	52.11	52.10	56.01	48.65	53.10	51.15	48.85	49.57	47.95	43.89	45.94
	0.52	0.50	0.50	0.42	0.39	0.50	0.22	0.48	0.90	0.94	0.80	0.77	0.94	1.13	1.08	1.06	0.83	0.66	0.69	0.59	0.91	0.80	0.64	0.93
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.04	-0.01	-0.01	0.00	-1.98	-1.90	-12.95	-6.29	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	51.03	40.48	32.87	26.61	26.39	30.57	32.34	45.37	48.66	52.27	52.26	53.20	49.07	49.73	49.81	51.92	45.28	39.86	43.72	47.06	47.42	45.99	42.18	43.85
	-1.34	-0.97	-0.81	-0.68	-0.58	-0.80	-0.73	-1.12	-1.05	-0.85	-0.89	-1.05	-1.12	-1.24	-1.21	-1.24	-1.06	-0.94	-1.06	-1.19	-1.24	-1.16	-1.07	-1.15
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.03	0.02	0.00	0.00	-0.19	-0.41	-1.31	-0.61	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	56.23	44.35	35.98	29.01	28.76	33.65	35.92	50.98	54.54	58.51	58.90	60.41	56.44	57.03	57.03	60.97	56.10	55.08	54.16	53.81	54.10	52.23	47.73	49.09
	3.87	2.90	2.31	1.73	1.79	2.28	2.85	4.48	4.83	5.40	5.75	6.15	5.81	5.96	6.01	6.47	5.69	4.86	5.14	5.55	5.45	5.08	4.48	4.08
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	-0.41	-0.10	0.00	-1.53	-4.49	-10.74	-4.85	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	51.16	40.73	33.11	26.85	26.47	30.66	32.27	45.00	48.21	51.62	51.79	52.96	49.21	50.04	50.09	52.06	45.46	40.05	43.81	46.88	47.20	45.75	42.05	43.90
	-1.20	-0.72	-0.56	-0.43	-0.50	-0.70	-0.80	-1.49	-1.50	-1.49	-1.36	-1.30	-0.99	-0.93	-0.93	-1.10	-0.88	-0.74	-0.97	-1.37	-1.45	-1.40	-1.19	-1.11
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.02	0.00	0.00	-0.19	-0.41	-1.31	-0.61	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	1.07	8.90	27.48	26.64	26.36	30.67	32.22	45.18	48.22	51.31	51.35	51.23	47.96	49.63	49.75	51.51	44.70	38.45	43.10	47.15	47.57	46.14	41.48	43.91
	-1.44	-0.86	-0.75	-0.64	-0.61	-0.70	-0.85	-1.31	-1.50	-1.77	-1.80	-1.83	-1.46	-1.34	-1.28	-1.45	-1.21	-0.96	-1.03	-1.11	-1.09	-1.01	-1.12	-1.10
	52.89	37.81	9.22	0.00	0.00	0.00	0.00	0.00	0.00	0.03	0.00	1.22	0.80	0.00	0.00	0.01	0.01	0.08	0.04	0.00	0.00	0.00	2.08	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	55.09	43.53	35.29	28.46	28.17	32.85	34.89	49.40	52.91	56.72	57.03	58.44	53.95	54.91	55.00	58.76	53.84	53.24	52.39	52.03	52.32	50.52	46.12	47.47
	2.73	2.08	1.62	1.17	1.20	1.48	1.82	2.91	3.20	3.60	3.88	4.18	3.91	3.98	3.98	4.28	3.77	3.22	3.44	3.77	3.67	3.37	2.87	2.46
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.18	0.04	0.00	-1.51	-4.14	-10.53	-4.79	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	56.00	44.27	36.02	29.15	28.98	48.02	49.50	51.86	54.47	58.15	58.36	59.89	59.58	58.51	58.80	61.99	56.26	54.95	53.85	53.64	54.18	52.32	50.88	51.69
	3.64	2.82	2.35	1.86	2.01	2.70	3.48	5.24	4.76	5.04	5.21	5.58	5.45	5.70	6.00	6.48	5.67	4.70	4.82	5.38	5.52	5.17	5.11	5.00
	0.00	0.00	0.00	0.00	0.00	-13.95	-12.95	-0.13	0.00	0.00	0.00	-0.03	-3.91	-1.84	-1.78	-2.54	-4.67	-10.76	-4.86	0.00	0.00	0.00	-2.52	-1.67
	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	51.87	41.10	33.41	27.06	26.75	31.13	32.86	46.21	49.49	52.92	53.08	54.01	50.07	51.03	51.08	53.07	46.20	39.97	44.42	48.32	48.75	47.18	43.15	44.89
	-0.49	-0.35	-0.27	-0.22	-0.22	-0.24	-0.20	-0.28	-0.22	-0.19	-0.07	-0.06	-0.02	0.06	0.05	0.05	0.14	0.14	0.10	0.06	0.09	0.03	-0.10	-0.12
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.21	0.14	0.00	0.00	-0.05	-0.13	-0.34	-0.15	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	55.73	43.96	35.66	28.75	28.50	33.32	35.55	50.43	53.95	57.85	58.22	59.68	54.80	56.09	56.28	60.15	55.33	54.33	53.47	53.17	53.45	51.61	47.17	48.51
	3.37	2.51	1.99	1.47	1.53	1.95	2.48	3.94	4.23	4.74	5.06	5.42	5.11	5.24	5.26	5.67	5.00	4.27	4.52	4.91	4.79	4.46	3.92	3.50
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.53	0.12	0.00	-1.50	-4.40	-10.58	-4.78	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	58.17	46.38	36.57	29.47	29.23	37.59	41.37	56.04	59.11	63.81	62.44	78.36	73.83	62.31	62.02	64.89	63.04	61.28	60.84	65.04	90.17	60.64	62.01	56.33
	4.70	3.56	2.89	2.18	2.26	2.88	3.54	5.53	5.94	6.66	7.06	7.58	7.18	7.39	7.44	8.02	7.04	5.98	6.28	6.76	6.65	6.21	5.54	5.14
	-1.11	-1.37	0.00	0.00	0.00	-3.34	-4.76	-4.03	-3.46	-4.04	-2.23	-16.50	-16.43	-3.96	-3.56	-3.89	-10.07	-15.82	-10.39	-10.02	-34.87	-7.28	-13.21	-6.18
	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	50.77	40.16	32.63	26.53	26.24	30.55	32.10	45.02	48.08	51.14	51.23	51.31	48.01	49.58	49.69	51.45	44.68	38.40	43.07	47.11	47.54	46.09	42.13	43.81
	-1.60	-1.29	-1.04	-0.75	-0.73	-0.82	-0.97	-1.47	-1.63	-1.94	-1.93	-1.94	-1.53	-1.39	-1.33	-1.51	-1.23	-0.97	-1.04	-1.14	-1.11	-1.06	-1.12	-1.20
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.03	0.00	1.03	0.68	0.00	0.00	0.02	0.02	0.12	0.06	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	5.00	12.00	30.10	27.93	27.59	32.14	33.71	47.58	55.00	49.01	49.00	49.00	25.00	32.00	35.00	35.01	54.00	55.99	50.42	48.69	49.21	47.62	45.42	45.47
	2.49	2.24	1.87	0.65	0.62	0.77	0.64	1.09	2.57	2.80	2.86	3.08	3.28	3.38	3.26	3.50	3.37	3.59	0.47	0.43	0.55	0.47	2.82	0.47
	52.89	37.81	9.22	0.00	0.00	0.00	0.00	0.00	7.42	13.29	9.88	10.07	33.80	28.63	19.19	23.12	3.72	0.40	-5.79	0.00	0.00	0.00	2.08	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	-0.43	5.43	24.63	23.50	23.26	26.94	28.70	39.80	42.06	45.07	45.57	46.63	43.13	43.71	43.84	45.70	40.17	35.86	39.13	41.89	41.75	40.41	37.19	38.63
	-2.94	-4.33	-3.60	-3.78	-3.71	-4.43	-4.37	-6.69	-7.65	-8.04	-7.58	-7.63	-7.08	-7.25	-7.18	-7.51	-6.27	-5.28	-5.81	-6.37	-6.91	-6.74	-5.41	-6.38
	52.89	37.81	9.22	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.02	0.00	0.00	-0.24	-0.51	-1.65	-0.77	0.00	0.00	0.00	2.08	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	0.68	5.00	24.00	25.93	25.67	29.85	31.81	44.70	47.68	51.18	51.55	52.57	48.50	49.21	49.32	51.54	45.20	40.59	43.95	47.03	47.18	45.59	39.47	42.97
	-1.83	-4.76	-4.23	-1.36	-1.30	-1.52	-1.26	-1.79	-2.03	-1.93	-1.60	-1.69	-1.70	-1.75	-1.70	-1.77	-1.43	-1.14	-1.26	-1.23	-1.48	-1.56	-3.13	-2.04
	52.89	37.81	9.22	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.02	0.00	0.00	-0.33	-0.70	-2.24	-1.04	0.00	0.00	0.00	2.08	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	50.44	40.04	32.39	26.42	26.19	30.34	32.28	44.67	47.22	50.66	51.28	52.49	48.52	49.20	49.38	51.46	45.17	40.15	43.96	47.13	46.94	45.45	41.88	43.30
	-1.93	-1.41	-1.28	-0.86	-0.78	-1.03	-0.79	-1.82	-2.49	-2.45	-1.87	-1.77	-1.69	-1.77	-1.64	-1.76	-1.26	-0.98	-0.97	-1.13	-1.72	-1.70	-1.37	-1.71
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.02	0.00	0.00	-0.24	-0.51	-1.64	-0.76	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