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: 08/21/2003

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	48.42	48.51	46.99	37.57	27.56	45.22	44.89	45.98	49.54	51.03	57.17	80.05	86.93	92.33	166.51	102.77	97.65	99.88	68.02	66.17	92.13	57.87	52.27	51.44
	1.98	2.27	2.30	1.85	1.25	1.92	1.39	1.37	1.31	0.82	1.18	1.14	1.25	1.07	2.89	1.56	1.78	1.50	0.91	1.24	1.68	0.77	1.07	1.73
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	45.22	44.92	43.47	34.74	25.62	42.15	42.42	43.39	46.88	48.92	54.83	77.54	84.66	90.43	162.25	100.72	95.26	97.57	66.53	64.12	89.41	56.49	50.47	48.74
	-1.21	-1.31	-1.23	-0.98	-0.69	-1.15	-1.08	-1.22	-1.34	-1.28	-1.17	-1.37	-1.02	-0.83	-1.36	-0.48	-0.61	-0.80	-0.59	-0.82	-1.04	-0.61	-0.74	-0.96
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	50.52	50.11	48.23	38.49	28.34	47.02	47.83	49.60	53.83	56.02	62.04	87.57	95.18	101.17	180.64	111.62	106.03	109.21	74.19	71.81	100.13	62.86	56.19	54.24
	4.09	3.88	3.53	2.77	2.03	3.72	4.33	4.99	5.60	5.82	6.05	8.66	9.50	9.91	17.03	10.42	10.16	10.83	7.07	6.87	9.68	5.76	4.98	4.54
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	45.63	45.23	43.92	35.14	25.96	42.57	42.45	43.20	46.77	49.05	55.20	78.01	84.95	90.75	162.84	100.83	95.51	97.59	66.50	64.04	89.09	56.59	50.75	49.42
	-0.80	-1.00	-0.78	-0.58	-0.35	-0.72	-1.05	-1.41	-1.46	-1.15	-0.79	-0.90	-0.73	-0.51	-0.77	-0.37	-0.36	-0.79	-0.61	-0.90	-1.36	-0.51	-0.46	-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	0.00	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	45.70	45.46	43.99	35.13	25.89	42.60	42.64	41.00	47.25	45.90	51.42	58.06	83.72	89.33	159.94	86.00	76.56	79.36	65.51	63.38	88.23	55.00	44.01	48.94
	-0.74	-0.77	-0.71	-0.58	-0.42	-0.69	-0.86	-1.55	-0.98	-1.47	-1.81	-1.95	-1.96	-1.93	-3.67	-2.78	-2.79	-2.93	-1.61	-1.55	-2.23	-1.85	-1.35	-0.76
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	9.10	0.00	5.00	5.00	5.00	0.00	0.00	0.00	4.03	10.60	6.44	0.00	0.00	0.00	2.84	8.83	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	49.21	48.88	47.05	37.57	27.69	45.81	46.46	48.16	52.23	54.33	60.23	85.08	92.62	98.49	176.19	109.03	103.47	106.37	72.41	70.06	97.70	61.37	54.81	52.81
	2.78	2.64	2.35	1.85	1.38	2.51	2.96	3.55	4.01	4.12	4.24	6.17	6.94	7.23	12.57	7.83	7.60	7.99	5.30	5.13	7.25	4.26	3.60	3.11
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	75.68	68.18	63.35	62.61	57.92	57.03	53.04	54.68	62.99	74.18	67.00	99.15	102.58	105.10	182.40	137.28	118.87	118.45	115.67	114.06	101.49	67.62	56.61	55.42
	4.94	4.99	4.62	3.60	2.61	4.73	5.28	5.90	6.50	6.49	6.10	8.45	9.02	9.79	16.71	10.29	10.30	10.70	6.65	6.28	8.79	5.27	4.71	4.89
	-24.31	-16.96	-14.04	-23.29	-29.00	-9.01	-4.26	-4.16	-8.26	-17.48	-4.90	-11.79	-7.89	-4.06	-2.08	-25.79	-12.70	-9.36	-41.90	-42.85	-2.25	-5.26	-0.69	-0.83
	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	47.06	46.86	45.36	36.27	26.72	43.96	44.08	45.06	48.65	50.51	56.24	79.27	86.22	91.86	164.59	101.80	96.48	99.04	67.47	65.30	90.97	57.34	51.57	50.18
	0.62	0.63	0.67	0.55	0.41	0.66	0.58	0.45	0.42	0.30	0.25	0.35	0.54	0.60	0.98	0.59	0.61	0.66	0.36	0.36	0.52	0.24	0.37	0.48
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	49.87	49.47	47.62	38.01	27.99	46.42	47.20	48.94	53.11	55.27	61.23	86.43	93.97	99.90	178.37	110.24	104.68	107.80	73.29	70.90	98.87	62.08	55.48	53.52
	3.44	3.24	2.92	2.30	1.68	3.12	3.71	4.33	4.89	5.06	5.24	7.51	8.29	8.64	14.75	9.03	8.81	9.42	6.17	5.96	8.42	4.97	4.27	3.82
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	85.67	72.04	55.54	48.44	40.73	53.33	57.74	60.73	59.46	71.19	79.34	99.30	106.11	116.26	190.32	122.14	112.81	115.70	85.77	96.64	123.78	99.18	107.01	96.67
	5.26	4.98	4.59	3.65	2.69	4.89	5.55	6.22	6.90	7.13	7.36	10.54	11.36	11.72	20.04	11.85	11.61	12.48	8.17	8.15	11.52	6.83	6.05	5.74
	-33.98	-20.83	-6.25	-9.08	-11.73	-5.14	-8.69	-9.90	-4.33	-13.85	-16.00	-9.85	-9.08	-13.28	-6.66	-9.09	-5.33	-4.84	-10.48	-23.55	-21.80	-35.25	-49.75	-41.23
	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	45.89	45.65	44.19	35.30	26.01	42.79	42.70	43.66	47.29	49.10	54.73	77.13	83.79	89.40	160.10	98.53	93.52	96.11	65.49	63.39	88.24	55.84	50.27	49.04
	-0.54	-0.59	-0.51	-0.41	-0.30	-0.50	-0.80	-0.95	-0.94	-1.11	-1.26	-1.78	-1.89	-1.85	-3.51	-2.67	-2.35	-2.27	-1.62	-1.55	-2.21	-1.26	-0.94	-0.67
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	48.25	48.21	46.62	37.27	27.36	44.96	44.98	52.78	49.95	51.58	57.30	80.81	87.71	80.00	167.40	65.00	65.00	65.00	30.00	66.63	92.75	60.76	48.23	51.34
	1.82	1.98	1.93	1.56	1.05	1.66	1.48	3.36	1.72	1.38	1.30	1.90	2.03	4.57	3.79	5.20	5.04	5.15	4.42	1.69	2.30	3.34	2.87	1.64
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.23	0.00	0.00	0.00	0.00	0.00	12.55	0.00	33.01	29.99	28.88	53.43	0.00	0.00	2.27	8.83	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	39.62	39.37	38.16	30.54	22.59	36.96	37.32	46.37	41.18	43.29	48.39	68.06	74.30	79.43	141.78	88.20	83.28	85.57	58.90	56.49	78.53	57.00	43.95	42.87
	-6.81	-6.86	-6.53	-5.17	-3.72	-6.34	-6.17	-3.05	-7.05	-6.92	-7.60	-10.86	-11.38	-11.83	-21.83	-13.00	-12.59	-12.81	-8.22	-8.44	-11.92	-0.42	-1.41	-6.83
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.23	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.27	8.83	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	43.95	35.00	42.20	34.98	29.00	41.02	41.61	48.44	46.56	48.53	54.12	76.37	83.79	89.40	159.20	98.70	93.26	96.06	65.77	63.38	88.37	59.99	44.82	47.45
	-2.48	-4.80	-2.50	-4.32	-4.16	-2.27	-1.89	-0.98	-1.67	-1.67	-1.87	-2.54	-1.89	-1.86	-4.42	-2.50	-2.61	-2.32	-1.35	-1.55	-2.08	2.57	-0.54	-2.25
	0.00	4.60	0.00	5.70	12.03	0.00	0.00	2.23	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.27	8.83	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	44.69	44.37	43.01	34.41	25.45	41.67	42.13	42.83	46.52	49.20	55.01	77.50	84.29	90.22	161.14	100.23	94.56	97.12	66.82	63.99	88.96	57.21	50.99	48.38
	-1.74	-1.87	-1.69	-1.30	-0.85	-1.63	-1.37	-1.78	-1.71	-1.01	-0.98	-1.41	-1.39	-1.04	-2.48	-0.97	-1.31	-1.26	-0.30	-0.95	-1.50	0.11	-0.22	-1.32
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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