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: 08/20/2003

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	52.04	47.98	46.46	46.54	42.90	43.91	47.34	40.54	45.69	47.02	52.91	53.69	52.96	68.26	63.76	81.48	86.24	78.97	60.22	55.54	55.90	54.82	53.43	52.13
	1.60	1.71	1.92	1.91	1.75	2.00	2.04	1.53	1.74	1.35	1.37	1.63	1.52	2.22	2.04	2.41	2.11	1.91	1.59	1.67	1.67	1.47	1.63	1.67
	0.00	0.00	0.00	0.00	0.00	0.00	-0.03	-0.10	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.02	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	49.33	45.14	43.41	43.44	40.07	40.74	44.05	37.79	42.70	44.52	50.41	50.86	50.33	64.68	60.44	77.36	82.50	75.50	57.42	52.63	52.98	52.19	50.51	49.00
	-1.11	-1.14	-1.14	-1.19	-1.09	-1.16	-1.22	-1.11	-1.25	-1.14	-1.13	-1.20	-1.11	-1.36	-1.29	-1.70	-1.63	-1.55	-1.21	-1.25	-1.25	-1.16	-1.29	-1.45
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	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	54.54	50.01	47.98	47.85	44.12	45.12	49.53	59.33	65.40	70.56	113.11	144.77	168.51	75.42	68.99	91.53	94.20	86.27	65.31	59.98	68.23	59.25	57.19	55.59
	4.09	3.74	3.43	3.22	2.96	3.21	3.85	3.90	4.61	4.87	5.63	5.81	5.73	7.20	6.95	9.38	10.07	9.21	6.69	6.10	6.41	5.86	5.39	5.14
	0.00	0.00	0.00	0.00	0.00	0.00	-0.42	-16.53	-16.83	-20.03	-55.93	-86.89	-111.34	-2.19	-0.31	-3.10	0.00	0.00	0.00	0.00	-7.59	-0.05	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	49.81	45.46	43.78	43.80	40.49	41.25	44.61	37.93	42.81	44.27	49.92	50.47	50.09	64.77	60.60	77.43	82.35	75.19	57.14	52.48	52.64	52.01	50.54	48.97
	-0.63	-0.82	-0.77	-0.83	-0.66	-0.66	-0.65	-0.96	-1.15	-1.39	-1.63	-1.59	-1.35	-1.27	-1.12	-1.63	-1.78	-1.86	-1.48	-1.40	-1.59	-1.34	-1.27	-1.49
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	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	49.58	45.44	43.76	43.99	40.60	41.32	44.51	38.13	43.09	45.59	47.86	51.80	50.51	64.84	60.59	77.36	82.28	75.48	57.36	52.75	53.11	52.35	51.02	49.67
	-0.86	-0.83	-0.79	-0.63	-0.56	-0.59	-0.75	-0.78	-0.86	-1.56	-1.69	-1.64	-0.93	-1.20	-1.13	-1.69	-1.85	-1.58	-1.27	-1.13	-1.12	-0.99	-0.79	-0.78
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	5.00	5.00	5.00	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

HUD VL 61758	52.96	48.55	46.59	46.51	42.90	43.80	47.39	40.91	47.02	49.00	55.46	56.43	55.76	71.46	66.88	86.56	91.65	83.81	63.65	58.42	58.89	57.56	55.59	54.01
	2.52	2.28	2.04	1.88	1.74	1.89	2.28	2.49	3.06	3.34	3.91	4.36	4.32	5.42	5.15	7.00	7.51	6.76	5.03	4.55	4.66	4.21	3.78	3.56
	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.48	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.51	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	68.37	51.90	51.33	48.63	45.79	51.83	51.65	59.83	76.18	77.39	113.29	145.13	168.80	105.98	114.05	113.48	117.45	115.47	113.81	106.33	112.27	107.13	59.00	89.79
	5.06	4.75	4.37	4.00	3.80	4.21	4.79	4.49	5.13	5.24	5.81	6.17	6.02	7.56	7.33	9.71	10.10	8.98	6.49	6.13	6.62	6.08	5.80	5.76
	-12.87	-0.87	-2.42	0.00	-0.83	-5.71	-1.60	-16.43	-27.09	-26.49	-55.93	-86.89	-111.34	-32.39	-45.00	-24.73	-23.22	-29.44	-48.70	-46.32	-51.41	-47.71	-1.40	-33.58
	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	50.97	46.84	45.18	45.22	41.70	42.47	45.90	39.32	44.45	46.05	51.90	52.38	51.79	66.55	62.18	79.67	84.79	77.64	59.05	54.26	54.66	53.73	52.26	50.87
	0.53	0.56	0.63	0.59	0.54	0.56	0.63	0.41	0.49	0.39	0.35	0.32	0.35	0.52	0.45	0.62	0.65	0.58	0.42	0.39	0.42	0.39	0.46	0.42
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	53.90	49.42	47.42	47.31	43.62	44.59	48.02	55.99	64.79	69.95	112.41	144.03	167.80	74.48	68.06	90.29	92.92	85.09	64.47	59.19	67.38	58.44	56.41	54.84
	3.46	3.15	2.87	2.68	2.47	2.69	3.24	3.35	4.00	4.26	4.93	5.08	5.02	6.25	6.02	8.17	8.79	8.04	5.84	5.32	5.56	5.05	4.61	4.39
	0.00	0.00	0.00	0.00	0.00	0.00	0.49	-13.73	-16.83	-20.03	-55.93	-86.89	-111.34	-2.19	-0.31	-3.08	0.00	0.00	0.00	0.00	-7.59	-0.05	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	62.72	53.27	49.64	48.81	44.98	46.06	51.69	74.59	76.41	73.01	114.19	148.09	170.61	86.22	80.90	102.24	102.80	95.77	78.27	86.82	102.68	95.81	92.29	76.69
	5.19	4.77	4.43	4.18	3.82	4.16	5.01	4.96	5.71	5.87	6.71	6.87	6.76	8.50	8.32	11.17	11.94	10.93	7.91	7.37	7.87	7.17	6.68	6.44
	-7.09	-2.23	-0.67	0.00	0.00	0.00	-1.42	-30.73	-26.75	-21.47	-55.93	-89.15	-112.42	-11.69	-10.85	-12.02	-6.72	-7.79	-11.73	-25.57	-40.57	-35.29	-33.81	-19.80
	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	49.76	45.61	43.95	44.18	40.77	41.49	44.70	38.20	43.18	44.83	50.54	51.10	50.60	64.98	60.74	77.53	82.44	75.60	57.45	52.83	53.21	52.42	51.07	49.72
	-0.69	-0.66	-0.59	-0.45	-0.39	-0.41	-0.56	-0.71	-0.77	-0.83	-1.01	-0.96	-0.84	-1.06	-0.99	-1.51	-1.69	-1.45	-1.18	-1.04	-1.02	-0.93	-0.73	-0.74
	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	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	52.08	47.92	2.00	36.99	42.69	14.99	48.00	40.66	45.70	52.76	54.97	55.99	53.25	68.47	63.99	82.17	86.83	79.50	60.58	55.85	56.23	55.11	53.64	52.34
	1.64	1.64	1.50	1.86	1.53	1.86	2.18	1.58	1.75	3.08	3.33	3.21	1.82	2.43	2.26	2.87	2.69	2.45	1.96	1.98	1.99	1.77	1.84	1.88
	0.00	0.00	37.92	9.24	0.00	32.32	2.57	-0.18	0.00	2.47	2.91	5.66	0.00	0.00	0.00	-0.25	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

O H 61846	43.80	39.96	38.25	38.22	35.31	35.69	38.55	32.83	36.97	38.63	43.70	44.06	43.75	56.25	52.54	67.52	72.30	66.16	50.38	46.23	46.27	45.90	44.34	42.90
	-6.64	-6.31	-6.30	-6.40	-5.85	-6.21	-6.71	-6.06	-6.99	-7.03	-7.85	-8.00	-7.68	-9.79	-9.19	-11.53	-11.83	-10.90	-8.25	-7.65	-7.96	-7.45	-7.46	-7.56
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	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

PJM 61847	48.26	44.17	42.38	42.41	39.17	39.73	43.03	37.14	42.09	44.10	49.96	50.37	49.84	63.90	59.59	76.81	82.01	75.11	57.07	52.23	52.57	51.78	49.79	48.17
	-2.18	-2.10	-2.17	-2.21	-1.99	-2.17	-2.23	-1.75	-1.87	-1.56	-1.59	-1.69	-1.60	-2.14	-2.13	-2.25	-2.13	-1.95	-1.56	-1.64	-1.66	-1.57	-2.01	-2.29
	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.02	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	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

WEST 61752	49.49	45.11	43.14	43.12	39.80	40.18	43.37	36.92	41.57	43.57	49.40	49.86	49.59	63.70	59.51	76.40	81.85	74.91	57.00	52.21	52.27	51.93	50.24	48.44
	-0.96	-1.16	-1.40	-1.51	-1.36	-1.73	-1.89	-1.97	-2.38	-2.09	-2.14	-2.20	-1.85	-2.33	-2.21	-2.65	-2.29	-2.15	-1.63	-1.67	-1.97	-1.41	-1.56	-2.01
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	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