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: 08/26/2003

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	38.48	35.66	32.92	32.04	22.42	33.78	42.72	50.73	53.82	49.05	52.16	54.18	67.35	77.53	59.69	57.75	58.45	59.32	49.25	54.72	58.68	52.56	52.61	51.16
	2.07	1.97	1.89	1.82	1.29	2.09	2.45	2.64	2.68	2.37	2.19	1.77	1.79	1.86	1.40	1.48	1.39	0.84	1.14	1.44	1.33	1.59	2.29	2.89
	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	35.76	32.95	30.30	29.47	20.71	30.94	39.41	47.06	50.00	45.73	49.04	51.54	64.39	74.45	57.42	55.46	56.23	57.71	47.36	52.29	56.42	50.02	49.40	47.19
	-0.65	-0.74	-0.74	-0.75	-0.42	-0.75	-0.86	-1.03	-1.13	-0.94	-0.93	-0.87	-1.17	-1.22	-0.87	-0.82	-0.83	-0.76	-0.75	-0.98	-0.93	-0.96	-0.92	-1.08
	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	39.01	36.05	33.12	32.18	22.48	33.71	43.01	52.12	55.89	50.91	54.70	57.72	72.52	83.88	64.55	62.40	63.43	64.89	53.03	58.76	63.26	55.94	54.54	51.97
	2.59	2.36	2.09	1.96	1.35	2.02	2.74	4.03	4.75	4.24	4.73	5.32	6.97	8.22	6.25	6.12	6.37	6.41	4.91	5.48	5.92	4.96	4.22	3.70
	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	36.57	33.71	31.05	30.31	21.27	31.96	40.71	48.03	50.57	46.36	49.63	52.01	64.63	74.59	57.72	55.73	56.56	57.86	47.75	52.54	56.56	50.53	49.91	48.13
	0.16	0.01	0.02	0.09	0.15	0.27	0.44	-0.06	-0.57	-0.31	-0.33	-0.40	-0.93	-1.08	-0.58	-0.54	-0.50	-0.62	-0.36	-0.74	-0.79	-0.44	-0.41	-0.14
	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	35.68	33.00	30.38	29.68	20.73	31.13	39.68	47.22	50.19	45.87	49.11	51.43	54.75	53.18	54.00	51.00	50.68	41.63	46.84	51.90	51.99	49.87	49.25	30.00
	-0.74	-0.69	-0.66	-0.54	-0.40	-0.56	-0.59	-0.87	-0.95	-0.80	-0.86	-0.98	-1.81	-1.77	-1.58	-1.67	-1.72	-1.53	-1.28	-1.37	-1.88	-1.10	-1.07	-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	6.00	6.00	3.07	7.10	9.00	8.00	0.00	0.00	2.98	0.00	0.00	16.10
	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	38.20	35.32	32.47	31.55	22.03	33.05	42.09	50.87	54.52	49.65	53.31	56.22	70.61	81.64	62.81	60.71	61.75	63.23	51.80	57.36	61.78	54.61	53.36	50.92
	1.78	1.63	1.44	1.33	0.91	1.36	1.82	2.78	3.38	2.98	3.35	3.81	5.05	5.97	4.52	4.43	4.69	4.75	3.69	4.09	4.43	3.64	3.05	2.64
	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	75.34	96.67	62.39	62.51	55.46	57.00	57.52	58.83	57.68	57.66	67.97	69.03	77.85	87.58	86.55	78.27	73.31	72.95	57.19	65.00	66.07	56.57	55.60	55.11
	3.49	3.35	2.99	2.83	1.92	2.85	3.52	4.84	5.63	4.64	5.29	5.99	7.91	9.38	7.04	6.85	7.02	6.90	5.43	6.04	6.34	5.35	4.74	4.72
	-35.43	-59.63	-28.36	-29.46	-32.41	-22.46	-13.73	-5.90	-0.91	-6.35	-12.71	-10.64	-4.39	-2.53	-21.22	-15.14	-9.23	-7.58	-3.65	-5.69	-2.39	-0.25	-0.54	-2.11
	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	36.99	34.20	31.50	30.64	21.43	32.18	40.91	48.79	51.85	47.32	50.59	52.83	65.92	76.07	58.59	56.58	57.44	58.82	48.47	53.92	58.08	51.71	51.11	49.11
	0.57	0.50	0.46	0.42	0.31	0.49	0.65	0.70	0.71	0.64	0.62	0.42	0.37	0.40	0.30	0.31	0.38	0.34	0.36	0.65	0.73	0.74	0.79	0.84
	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	38.34	35.45	32.58	31.66	22.11	33.15	42.29	51.21	54.91	50.03	53.74	56.72	71.27	82.46	63.42	61.31	62.35	63.81	52.17	57.79	62.22	55.01	53.63	51.10
	1.93	1.75	1.54	1.43	0.98	1.46	2.02	3.12	3.77	3.35	3.77	4.31	5.72	6.79	5.13	5.03	5.29	5.34	4.05	4.52	4.88	4.04	3.31	2.83
	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	73.67	56.94	46.38	40.04	34.66	42.42	50.17	72.17	111.69	112.45	125.66	144.44	150.20	162.19	154.37	104.23	109.00	90.89	69.49	73.48	79.61	86.70	98.17	82.66
	3.44	3.12	2.82	2.67	1.86	2.78	3.80	5.41	6.17	5.50	6.05	6.70	8.66	10.17	7.77	7.58	7.82	7.82	6.03	6.78	7.31	6.20	5.44	4.80
	-33.81	-20.13	-12.52	-7.14	-11.67	-7.94	-6.10	-18.67	-54.37	-60.28	-69.64	-85.33	-75.98	-76.34	-88.31	-40.38	-44.12	-24.59	-15.35	-13.43	-14.95	-29.53	-42.41	-29.59
	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	35.79	33.11	30.50	29.80	20.81	31.27	39.85	47.33	50.29	45.99	49.22	51.48	64.26	74.04	57.05	55.03	55.61	56.69	46.68	51.73	55.61	49.92	49.37	47.59
	-0.63	-0.59	-0.53	-0.42	-0.32	-0.42	-0.42	-0.76	-0.85	-0.69	-0.75	-0.93	-1.29	-1.62	-1.25	-1.25	-1.45	-1.78	-1.43	-1.55	-1.74	-1.06	-0.94	-0.68
	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	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	37.45	34.73	32.07	31.19	21.81	32.78	41.42	49.41	52.56	47.92	41.99	43.01	43.09	45.00	45.00	45.90	46.01	50.00	50.00	50.00	50.00	50.00	44.00	32.84
	1.03	1.04	1.03	0.97	0.68	1.10	1.15	1.32	1.42	1.25	2.53	2.88	3.38	3.35	3.11	3.29	3.44	3.07	2.91	2.85	3.13	2.83	2.49	2.33
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	15.64	15.23	22.85	19.30	16.76	17.16	18.83	4.23	1.33	0.42	9.98	4.32	7.38	16.10
	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	31.17	28.78	26.53	25.94	18.13	27.03	34.27	40.60	42.86	39.35	42.31	44.80	56.02	64.77	50.16	48.34	49.39	51.07	41.73	45.83	49.71	44.04	42.60	25.62
	-5.25	-4.91	-4.50	-4.29	-3.00	-4.66	-5.99	-7.49	-8.28	-7.32	-7.66	-7.61	-9.54	-10.90	-8.13	-7.94	-7.67	-7.41	-6.38	-7.44	-7.64	-6.94	-7.71	-4.89
	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	16.10
	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	33.01	32.41	26.95	23.00	18.01	15.01	38.58	46.33	49.53	45.30	48.72	51.50	64.87	75.04	57.76	55.43	55.39	57.12	46.66	51.59	55.80	49.27	47.81	25.85
	-4.20	-1.28	-3.28	-3.22	-3.42	-5.02	-1.69	-1.76	-1.61	-1.37	-1.25	-0.91	-0.68	-0.63	-0.53	-0.84	-1.67	-1.35	-1.45	-1.69	-1.55	-1.70	-2.51	-4.66
	1.34	0.00	1.57	5.06	11.18	24.02	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	16.10
	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	35.14	32.48	29.98	29.29	20.46	30.45	38.57	45.67	48.18	44.29	47.67	50.54	63.20	73.36	56.87	54.75	55.74	57.75	47.13	51.75	56.19	49.78	48.14	45.91
	-1.27	-1.21	-1.06	-0.93	-0.66	-1.24	-1.69	-2.42	-2.96	-2.39	-2.30	-1.87	-2.35	-2.31	-1.42	-1.53	-1.31	-0.72	-0.99	-1.52	-1.16	-1.19	-2.17	-2.36
	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