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: 08/27/2003

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	26.23	27.16	41.69	35.48	47.04	49.45	35.41	73.29	55.22	50.40	49.89	49.75	50.04	51.24	53.21	54.66	55.02	54.27	51.73	49.35	51.72	50.75	52.69	34.96
	1.60	1.89	3.06	2.69	3.49	3.69	2.58	3.70	2.99	2.53	2.16	2.04	2.06	1.96	1.81	2.03	1.98	1.82	1.49	1.80	1.86	1.56	2.34	2.30
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	24.10	24.69	37.52	31.72	42.06	44.22	31.79	67.60	50.78	46.72	46.80	46.82	47.12	48.44	50.64	51.81	52.05	51.40	49.11	46.33	48.61	47.92	48.99	31.68
	-0.53	-0.57	-1.11	-1.07	-1.49	-1.54	-1.03	-2.00	-1.45	-1.14	-0.93	-0.88	-0.87	-0.84	-0.76	-0.82	-0.98	-1.05	-1.13	-1.22	-1.25	-1.27	-1.36	-0.98
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	26.44	26.88	41.00	34.77	46.35	48.87	35.28	76.13	57.16	52.85	52.82	52.89	53.27	54.79	56.91	58.10	58.75	58.42	55.91	52.80	55.39	54.44	55.36	35.43
	1.81	1.62	2.36	1.98	2.80	3.11	2.46	6.54	4.94	4.99	5.08	5.19	5.28	5.51	5.51	5.47	5.71	5.97	5.67	5.24	5.53	5.25	5.01	2.77
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	24.60	25.34	38.72	32.65	43.16	45.35	32.73	68.01	51.16	47.04	47.09	47.07	47.31	48.51	50.93	52.19	52.23	51.02	48.46	45.93	48.18	47.58	48.80	32.11
	-0.03	0.08	0.08	-0.14	-0.39	-0.41	-0.09	-1.58	-1.06	-0.82	-0.64	-0.63	-0.68	-0.77	-0.47	-0.44	-0.81	-1.44	-1.78	-1.62	-1.68	-1.61	-1.55	-0.55
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	24.23	24.91	38.13	32.36	43.22	45.27	32.55	68.71	49.23	46.96	46.68	46.65	46.90	48.15	50.31	51.57	52.01	51.32	49.19	46.60	51.50	48.28	49.35	33.50
	-0.40	-0.36	-0.51	-0.43	-0.21	-0.49	-0.28	-0.88	-0.70	-0.90	-1.06	-1.05	-1.09	-1.13	-1.10	-1.06	-1.03	-1.13	-1.06	-0.96	-1.44	-0.91	-1.00	-0.21
	0.00	0.00	0.00	0.00	-0.85	0.00	0.00	0.00	3.84	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.41	0.00	0.00	8.38
	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	25.91	26.40	40.26	34.16	45.46	47.87	34.48	74.26	55.76	51.43	51.38	51.49	51.88	53.34	55.44	56.64	57.21	56.86	54.47	51.50	53.99	53.10	54.08	34.67
	1.28	1.13	1.62	1.37	1.91	2.11	1.66	4.67	3.53	3.57	3.65	3.79	3.89	4.06	4.03	4.01	4.17	4.40	4.23	3.95	4.13	3.92	3.73	2.01
	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	0.00	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	47.60	27.46	52.99	50.80	54.18	57.11	57.49	79.20	58.87	57.09	64.74	82.86	83.22	79.32	87.52	65.15	67.86	66.65	59.09	63.50	65.64	66.73	77.02	105.87
	2.39	2.20	3.34	2.83	3.89	4.14	3.10	7.91	5.83	5.52	5.64	5.64	5.69	5.83	5.69	5.46	5.71	6.19	6.04	5.59	5.90	5.44	5.47	3.51
	-20.58	0.00	-11.02	-15.18	-6.74	-7.22	-21.58	-1.70	-0.81	-3.70	-11.36	-29.52	-29.54	-24.21	-30.43	-7.06	-9.11	-8.00	-2.81	-10.36	-9.87	-12.11	-21.20	-69.71
	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	25.10	25.78	39.42	33.46	44.46	46.73	33.58	70.64	53.18	48.68	48.36	48.23	48.52	49.84	51.94	53.24	53.62	52.96	50.68	48.19	50.50	49.76	51.08	33.29
	0.47	0.52	0.78	0.67	0.90	0.97	0.76	1.05	0.96	0.81	0.63	0.53	0.53	0.56	0.54	0.61	0.58	0.51	0.44	0.64	0.64	0.58	0.73	0.63
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	26.00	26.44	40.32	34.21	45.58	48.05	34.67	74.83	56.17	51.89	51.85	51.94	52.32	53.82	55.91	57.08	57.70	57.38	54.95	51.90	54.42	53.50	54.42	34.82
	1.37	1.18	1.69	1.42	2.03	2.29	1.85	5.23	3.94	4.03	4.12	4.24	4.33	4.54	4.51	4.46	4.67	4.93	4.70	4.35	4.56	4.31	4.07	2.16
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	48.11	38.35	46.90	43.92	51.60	54.78	44.48	79.57	74.94	81.09	118.88	88.28	99.08	95.49	85.26	81.42	97.11	88.95	82.76	91.20	91.21	100.27	99.59	63.03
	2.39	2.19	3.22	2.70	3.79	4.25	3.32	8.46	6.27	6.29	6.33	6.39	6.47	6.76	6.77	6.76	7.08	7.35	6.90	6.35	6.69	6.35	6.23	3.50
	-21.09	-10.89	-5.04	-8.43	-4.25	-4.76	-8.34	-1.51	-16.45	-26.93	-64.82	-34.18	-44.62	-39.44	-27.09	-22.03	-36.99	-29.14	-25.61	-37.30	-34.65	-44.73	-43.01	-26.87
	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	24.36	25.07	38.38	32.58	43.38	45.51	32.75	68.86	51.77	47.12	46.82	46.79	47.03	48.28	50.42	51.71	52.12	51.40	49.23	46.66	49.01	48.36	49.45	32.32
	-0.27	-0.19	-0.26	-0.21	-0.17	-0.25	-0.07	-0.73	-0.45	-0.74	-0.91	-0.91	-0.96	-1.00	-0.98	-0.91	-0.91	-1.05	-1.01	-0.89	-0.86	-0.83	-0.90	-0.34
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	25.48	26.26	40.31	34.30	45.56	47.79	34.21	71.65	43.00	45.00	52.00	54.19	49.23	50.45	52.39	53.71	54.10	53.56	51.19	48.72	51.05	51.00	51.77	35.77
	0.84	1.00	1.67	1.51	2.13	2.03	1.39	2.06	2.63	2.75	3.04	3.05	1.24	1.17	0.99	1.09	1.07	1.10	0.95	1.16	1.18	2.95	1.42	2.06
	0.00	0.00	0.00	0.00	-0.85	0.00	0.00	0.00	13.40	11.75	5.39	0.58	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.87	0.00	8.38
	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	20.75	21.08	32.23	27.17	37.72	37.54	27.11	58.13	44.50	40.04	40.49	40.50	40.67	41.66	43.82	44.70	44.92	44.24	42.53	39.98	41.86	41.59	41.97	28.20
	-3.88	-4.18	-6.40	-5.62	-5.71	-8.22	-5.71	-11.47	-5.43	-7.82	-7.24	-7.20	-7.32	-7.62	-7.58	-7.93	-8.12	-8.21	-7.71	-7.57	-8.00	-7.60	-8.38	-5.51
	0.00	0.00	0.00	0.00	-0.85	0.00	0.00	0.00	3.84	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	8.38
	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	23.05	23.53	35.97	30.50	39.56	42.46	30.51	65.73	46.76	45.33	45.59	45.53	45.78	47.06	49.24	50.33	50.88	50.41	48.49	45.65	47.89	47.35	47.78	29.00
	-1.58	-1.74	-2.67	-2.29	-3.87	-3.30	-2.32	-3.86	-3.17	-2.53	-2.14	-2.17	-2.21	-2.22	-2.16	-2.29	-2.15	-2.04	-1.75	-1.91	-1.97	-1.84	-2.57	-4.71
	0.00	0.00	0.00	0.00	-0.85	0.00	0.00	0.00	3.84	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	8.38
	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	23.35	23.71	36.22	30.51	40.26	42.09	30.37	65.38	48.72	45.06	45.71	45.76	45.97	47.35	49.89	50.88	51.04	50.21	48.12	45.06	47.21	46.89	47.16	30.09
	-1.28	-1.56	-2.42	-2.28	-3.29	-3.67	-2.45	-4.21	-3.50	-2.80	-2.02	-1.94	-2.02	-1.93	-1.51	-1.75	-1.99	-2.25	-2.12	-2.49	-2.66	-2.30	-3.19	-2.57
	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