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: 08/23/2003

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	63.26	47.99	35.75	41.08	33.79	36.01	44.11	36.59	44.17	41.85	50.65	53.53	52.84	51.11	52.80	57.69	55.10	50.86	53.12	50.17	51.11	41.51	19.38	29.69
	3.22	3.04	2.21	2.78	2.22	2.37	2.68	2.24	2.71	2.06	2.19	2.08	1.41	1.55	1.53	1.86	1.64	1.60	1.68	1.64	1.71	1.39	0.75	1.20
	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	-4.60	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	58.82	43.66	32.52	37.12	30.59	32.76	40.18	33.30	40.28	38.81	47.34	50.32	50.34	48.51	50.22	54.60	52.18	48.14	50.29	47.41	44.19	39.26	18.26	27.98
	-1.22	-1.29	-1.02	-1.18	-0.98	-0.88	-1.26	-1.05	-1.18	-0.98	-1.12	-1.13	-1.09	-1.05	-1.05	-1.23	-1.28	-1.11	-1.16	-1.12	-1.04	-0.85	-0.36	-0.51
	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	-0.44	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	64.67	56.05	62.44	56.21	55.38	53.96	49.55	56.60	60.84	67.02	77.76	91.75	77.79	59.65	65.40	60.89	60.26	56.24	56.51	53.41	53.01	44.00	20.25	30.72
	4.63	3.30	2.55	2.82	2.25	2.22	2.76	2.68	3.45	3.54	4.42	4.74	4.91	4.74	4.74	5.06	5.49	4.91	5.06	4.88	4.67	3.89	1.62	2.24
	0.00	-7.79	-26.35	-15.09	-21.56	-18.10	-5.35	-19.57	-15.93	-23.69	-24.89	-35.56	-21.44	-5.36	-9.39	0.00	-1.32	-2.07	0.00	0.00	-3.55	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	59.50	44.57	33.12	37.88	31.28	33.62	41.31	34.01	40.88	39.20	47.61	50.50	50.28	48.45	50.14	54.31	51.61	47.74	49.93	47.15	43.87	39.12	18.29	28.10
	-0.53	-0.38	-0.41	-0.42	-0.29	-0.02	-0.13	-0.34	-0.58	-0.59	-0.84	-0.95	-1.15	-1.10	-1.13	-1.52	-1.84	-1.52	-1.51	-1.38	-1.36	-1.00	-0.34	-0.39
	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	-0.44	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	58.70	44.22	33.01	37.63	31.05	40.79	41.01	33.83	40.72	44.47	47.52	50.48	50.33	48.33	50.12	54.38	52.03	47.89	50.05	47.20	43.47	39.06	18.19	40.74
	-1.34	-0.74	-0.53	-0.66	-0.52	-0.36	-0.43	-0.52	-0.73	-0.97	-0.94	-0.97	-1.10	-1.23	-1.16	-1.45	-1.43	-1.37	-1.40	-1.33	-1.30	-1.05	-0.44	-0.60
	0.00	0.00	0.00	0.00	0.00	3.32	0.00	0.00	0.00	0.68	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.03	0.00	0.00	1.43
	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	63.71	47.48	35.44	40.41	33.23	35.26	43.43	36.33	44.09	42.56	51.97	55.13	55.28	53.28	55.07	60.17	57.93	53.26	55.55	52.43	52.03	43.18	19.89	30.23
	3.67	2.52	1.90	2.11	1.66	1.62	1.99	1.98	2.63	2.78	3.52	3.67	3.84	3.72	3.80	4.33	4.47	4.00	4.11	3.90	3.73	3.07	1.26	1.74
	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	-3.51	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	75.08	66.99	83.56	56.97	55.98	54.44	52.16	56.98	62.77	71.74	77.62	91.73	77.87	59.69	65.32	60.66	60.75	63.22	60.54	57.13	63.65	56.27	54.54	52.02
	4.83	3.93	3.23	3.58	2.85	2.69	3.31	3.06	3.66	3.50	4.28	4.72	4.84	4.78	4.66	4.83	5.71	5.36	5.51	5.34	5.21	4.38	1.84	2.76
	-10.21	-18.10	-46.79	-15.09	-21.56	-18.10	-7.42	-19.57	-17.65	-28.45	-24.89	-35.56	-21.59	-5.36	-9.39	0.00	-1.59	-8.60	-3.58	-3.26	-13.64	-11.77	-34.07	-20.77
	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	60.76	45.67	34.06	38.89	32.05	34.15	41.97	34.79	42.00	40.21	48.98	52.07	51.92	50.12	51.86	56.48	54.07	49.81	52.02	49.08	45.41	40.53	18.82	28.78
	0.72	0.71	0.52	0.59	0.48	0.51	0.53	0.44	0.54	0.42	0.53	0.62	0.49	0.57	0.59	0.65	0.62	0.55	0.58	0.55	0.50	0.42	0.19	0.29
	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	-0.11	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	63.67	55.30	61.86	55.55	54.85	53.41	48.85	56.02	60.12	66.33	76.92	90.85	76.92	58.81	64.55	59.95	59.34	55.41	55.65	52.58	52.18	43.31	19.96	30.25
	3.64	2.55	1.97	2.16	1.71	1.67	2.07	2.09	2.73	2.85	3.58	3.84	4.04	3.90	3.89	4.12	4.57	4.08	4.20	4.05	3.88	3.20	1.33	1.76
	0.00	-7.79	-26.35	-15.09	-21.56	-18.10	-5.35	-19.57	-15.93	-23.69	-24.89	-35.56	-21.44	-5.36	-9.39	0.00	-1.32	-2.07	0.00	0.00	-3.51	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	108.57	95.14	82.54	63.88	64.02	62.01	63.81	66.54	74.20	81.74	89.04	101.19	90.01	74.82	92.49	99.92	100.68	90.27	71.88	70.37	86.68	67.14	43.94	45.67
	5.62	4.22	3.32	3.70	2.98	3.01	3.75	3.55	4.51	4.53	5.60	6.01	6.14	5.90	5.92	6.23	6.71	5.99	6.18	6.03	5.81	4.90	2.11	2.91
	-42.91	-45.96	-45.69	-21.88	-29.47	-25.36	-18.63	-28.64	-28.23	-37.43	-35.00	-43.72	-32.44	-19.36	-35.30	-37.86	-40.51	-35.02	-14.26	-15.81	-36.08	-22.13	-23.20	-14.28
	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	58.93	44.46	33.19	37.83	31.21	33.34	41.20	33.96	40.78	38.86	47.37	50.35	50.14	48.18	49.97	54.20	51.84	47.73	49.89	47.06	43.33	38.93	18.17	27.87
	-1.11	-0.49	-0.35	-0.47	-0.35	-0.30	-0.24	-0.39	-0.68	-0.93	-1.08	-1.10	-1.29	-1.38	-1.31	-1.63	-1.61	-1.53	-1.56	-1.47	-1.42	-1.18	-0.46	-0.62
	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	0.04	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	61.80	46.63	34.76	39.92	32.84	43.87	42.85	35.63	43.02	47.70	49.72	52.61	52.24	50.54	52.17	57.08	54.65	50.38	52.61	49.71	50.29	41.05	19.07	43.86
	1.77	1.67	1.22	1.62	1.27	2.09	1.41	1.28	1.56	2.26	1.27	1.16	0.81	0.98	0.90	1.25	1.20	1.12	1.17	1.18	1.27	0.94	0.44	2.52
	0.00	0.00	0.00	0.00	0.00	2.69	0.00	0.00	0.00	0.68	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-4.24	0.00	0.00	1.43
	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	51.46	37.90	28.28	32.24	26.70	37.50	35.42	35.00	34.83	43.50	41.22	44.07	44.72	43.03	44.43	48.12	45.94	42.39	44.30	41.69	45.00	34.44	15.97	36.25
	-8.58	-7.06	-5.26	-6.06	-4.87	-3.65	-6.02	-3.19	-6.63	-1.94	-7.23	-7.38	-6.71	-6.53	-6.84	-7.72	-7.51	-6.87	-7.15	-6.84	-4.22	-5.67	-2.66	-5.09
	0.00	0.00	0.00	0.00	0.00	3.32	0.00	8.04	0.00	0.68	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	1.04	0.00	0.00	1.43
	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	56.76	41.97	31.31	26.97	29.40	36.57	39.12	32.83	39.72	44.10	46.95	50.07	50.70	48.82	50.35	54.81	52.72	48.41	50.52	47.56	44.60	35.00	35.00	35.00
	-3.28	-2.99	-2.23	-4.18	-2.17	-4.58	-2.32	-1.52	-1.73	-1.34	-1.50	-1.38	-0.74	-0.74	-0.92	-1.02	-0.73	-0.85	-0.92	-0.96	-0.96	-2.54	-4.39	-5.47
	0.00	0.00	0.00	15.25	0.00	3.32	0.00	0.00	0.00	0.68	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.77	7.77	4.47	2.30
	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	57.67	42.30	31.57	35.97	29.75	31.85	39.60	32.43	38.98	37.94	46.31	49.55	50.34	48.40	50.00	54.07	51.61	47.62	49.75	46.78	43.29	38.68	17.96	27.49
	-2.37	-2.66	-1.97	-2.33	-1.82	-1.78	-1.84	-1.92	-2.48	-1.84	-2.14	-1.90	-1.10	-1.15	-1.28	-1.76	-1.85	-1.64	-1.70	-1.75	-2.06	-1.44	-0.67	-0.99
	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	-0.56	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