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: 08/30/2003

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	69.50	69.47	64.98	53.97	56.69	53.85	28.37	20.43	34.18	38.09	44.89	30.41	96.73	315.89	195.87	72.35	58.52	55.92	42.41	40.30	38.46	36.91	37.51	48.90
	5.28	5.14	4.75	3.88	4.77	4.68	2.24	1.60	2.51	2.79	3.27	1.65	0.61	-0.33	1.16	2.64	2.20	2.35	2.10	2.37	2.55	2.58	2.37	3.30
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.06	-83.35	-323.31	-163.72	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	62.15	62.14	58.13	48.30	49.92	47.28	25.27	18.40	30.82	34.25	40.32	27.86	27.03	23.76	45.75	67.74	54.82	52.13	39.20	36.90	34.89	33.30	34.07	44.07
	-2.07	-2.20	-2.10	-1.79	-2.01	-1.89	-0.86	-0.42	-0.86	-1.05	-1.31	-0.85	-0.40	0.21	-0.95	-1.98	-1.50	-1.45	-1.11	-1.03	-1.01	-1.03	-1.07	-1.52
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	-14.67	-30.65	-15.71	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	69.25	69.24	64.57	53.64	55.18	52.15	27.70	20.10	34.21	38.20	45.34	31.66	168.16	240.97	160.24	76.50	61.58	58.43	43.86	41.13	38.99	37.23	38.10	48.68
	5.03	4.91	4.33	3.55	3.25	2.98	1.56	1.27	2.53	2.90	3.72	2.92	1.35	-0.72	3.15	6.79	5.27	4.85	3.55	3.21	3.08	2.90	2.96	3.08
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.05	-154.05	-248.78	-126.10	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	63.46	63.47	59.45	49.43	51.41	48.65	25.91	18.60	31.03	34.54	40.44	27.61	26.53	25.05	45.58	66.95	54.47	51.95	39.19	37.09	35.13	33.54	34.26	44.75
	-0.75	-0.86	-0.78	-0.66	-0.52	-0.52	-0.22	-0.22	-0.65	-0.76	-1.19	-1.10	-0.56	0.29	-1.37	-2.76	-1.84	-1.62	-1.12	-0.84	-0.78	-0.79	-0.88	-0.84
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	-14.33	-31.85	-15.96	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	63.44	63.56	59.47	36.72	51.64	42.96	26.00	18.62	31.14	34.71	40.83	28.11	12.41	50.02	29.82	68.28	55.13	52.49	39.44	37.14	35.18	33.67	34.50	45.23
	-0.77	-0.78	-0.76	-0.21	-0.29	0.16	-0.13	-0.21	-0.54	-0.59	-0.79	-0.59	-0.28	-1.40	-0.62	-1.43	-1.19	-1.09	-0.87	-0.78	-0.72	-0.66	-0.64	-0.36
	0.00	0.00	0.00	5.16	0.00	11.87	0.00	0.00	0.00	0.00	0.00	0.00	0.08	2.40	0.55	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	67.73	67.78	63.32	52.63	54.21	51.24	27.25	19.76	33.62	37.56	44.59	31.11	157.46	238.50	158.35	75.27	60.57	57.47	43.16	40.40	38.29	36.56	37.38	47.87
	3.52	3.45	3.09	2.54	2.28	2.07	1.12	0.94	1.95	2.27	2.97	2.36	1.12	-0.58	2.61	5.56	4.26	3.89	2.85	2.48	2.38	2.23	2.24	2.28
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.05	-143.58	-246.18	-124.76	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	70.96	70.65	66.03	60.48	58.66	58.74	52.56	51.96	69.41	73.95	96.61	97.76	183.80	240.94	160.33	76.31	61.56	58.49	63.82	58.08	55.17	53.45	57.61	52.03
	6.34	6.32	5.70	4.73	4.48	4.13	2.09	1.63	3.09	3.43	4.18	3.23	1.41	-0.75	3.12	6.59	5.25	4.91	3.64	3.27	3.17	3.17	3.55	3.85
	-0.40	0.00	-0.09	-5.66	-2.25	-5.44	-24.34	-31.50	-34.65	-35.22	-50.81	-65.84	-169.62	-248.78	-126.23	0.00	0.00	0.00	-19.87	-16.89	-16.10	-15.95	-18.92	-2.59
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MHK VL 61756	65.65	65.68	61.43	51.06	53.11	50.39	26.75	19.29	32.38	36.09	42.49	29.10	17.39	1.44	35.47	70.62	57.12	54.32	40.94	38.67	36.64	35.07	35.84	46.56
	1.43	1.34	1.19	0.96	1.18	1.22	0.62	0.47	0.70	0.79	0.87	0.40	0.15	-0.09	0.34	0.90	0.80	0.75	0.63	0.75	0.74	0.74	0.70	0.97
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-4.48	-8.63	-4.15	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	68.08	68.08	63.50	52.77	54.30	51.32	27.34	19.78	33.68	37.60	44.65	31.18	165.87	238.97	158.50	75.44	60.72	57.60	43.23	40.52	38.39	36.66	37.52	47.97
	3.86	3.74	3.26	2.68	2.37	2.16	1.20	0.96	2.00	2.31	3.02	2.43	1.13	-0.64	2.67	5.73	4.40	4.02	2.92	2.60	2.49	2.33	2.38	2.38
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.05	-151.97	-246.70	-124.85	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	83.67	129.90	82.09	68.99	65.81	63.61	65.11	78.64	130.84	168.84	165.51	241.14	235.05	243.52	196.98	114.80	72.48	109.21	100.21	115.68	112.88	101.36	74.39	66.56
	6.56	6.51	5.74	4.66	4.35	4.03	2.17	1.65	3.19	3.62	4.51	3.44	1.56	-0.83	3.51	7.62	6.06	5.70	4.19	3.88	3.74	3.51	3.62	3.88
	-12.89	-59.05	-16.11	-14.24	-9.53	-10.42	-36.80	-58.16	-95.98	-129.92	-119.38	-209.00	-220.72	-251.45	-162.49	-37.47	-10.11	-49.93	-55.71	-73.87	-73.23	-63.52	-35.64	-17.09
	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	63.91	63.99	59.85	49.86	52.15	49.48	26.26	18.74	31.32	34.91	41.03	28.15	11.27	-11.52	28.52	68.33	55.20	52.56	39.52	37.29	35.33	33.82	34.65	45.51
	-0.31	-0.35	-0.39	-0.23	0.22	0.32	0.13	-0.08	-0.35	-0.39	-0.59	-0.55	-0.27	0.16	-0.62	-1.38	-1.11	-1.01	-0.79	-0.64	-0.58	-0.51	-0.49	-0.08
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	1.23	4.58	1.85	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	67.19	67.28	62.95	38.99	54.59	45.31	27.33	19.68	33.15	36.92	43.65	29.88	113.19	290.72	182.62	45.00	57.69	55.03	41.66	39.38	37.47	35.92	36.58	47.42
	2.98	2.94	2.71	2.06	2.66	2.51	1.20	0.86	1.47	1.62	2.03	1.12	0.43	-0.23	0.84	2.96	1.37	1.46	1.35	1.45	1.56	1.59	1.44	1.83
	0.00	0.00	0.00	5.16	0.00	11.87	0.00	0.00	0.00	0.00	0.00	-0.06	-99.99	-298.05	-150.79	8.13	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	52.91	53.27	50.22	31.84	42.62	34.00	21.69	15.55	25.94	28.71	33.63	23.69	29.18	33.66	45.99	58.67	47.72	45.27	33.93	31.63	29.55	28.06	29.01	37.66
	-11.31	-11.07	-10.02	-5.09	-9.31	-8.80	-4.44	-3.28	-5.73	-6.59	-7.99	-5.01	-2.14	1.22	-5.00	-11.04	-8.59	-8.31	-6.38	-6.30	-6.35	-6.27	-6.13	-7.93
	0.00	0.00	0.00	5.16	0.00	11.87	0.00	0.00	0.00	0.00	0.00	-0.01	-18.55	-39.54	-20.00	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

PJM 61847	58.93	35.50	55.39	11.10	11.10	11.10	25.00	17.38	29.34	32.70	38.59	26.98	37.27	47.06	56.80	66.53	53.72	50.85	38.09	35.57	33.48	31.94	32.85	42.37
	-5.29	-6.04	-4.84	-5.64	-6.08	-8.69	-4.09	-1.44	-2.33	-2.60	-3.04	-1.73	-0.69	0.39	-1.39	-3.18	-2.60	-2.73	-2.22	-2.36	-2.43	-2.39	-2.30	-3.22
	0.00	4.58	0.00	25.35	22.57	34.88	12.20	0.00	0.00	0.00	0.00	-0.01	-25.20	-53.77	-27.20	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

WEST 61752	59.16	59.56	56.22	46.93	47.69	44.78	24.27	17.37	28.98	32.04	37.50	26.47	30.63	31.95	48.81	65.71	53.46	50.69	37.96	35.36	33.03	31.35	32.51	42.28
	-5.06	-4.77	-4.02	-3.16	-4.24	-4.39	-1.86	-1.45	-2.69	-3.25	-4.12	-2.24	-0.89	0.52	-1.89	-4.01	-2.86	-2.89	-2.35	-2.56	-2.88	-2.98	-2.63	-3.32
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	-18.76	-38.53	-19.72	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