P-4A

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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: 10/03/2008

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	63.69	50.54	60.97	48.29	65.09	71.80	96.92	74.02	55.63	54.61	50.58	62.08	48.87	47.60	57.54	52.63	46.94	38.22	43.45	61.61	55.74	66.88	76.86	92.31
	2.17	1.88	2.39	1.85	2.00	2.81	4.35	4.11	3.19	3.08	2.71	3.35	2.65	2.26	2.93	2.31	2.28	1.93	2.24	3.50	3.23	3.60	3.84	3.90
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	60.81	47.82	57.35	45.50	62.26	68.16	92.36	70.01	52.38	51.33	47.60	57.94	45.92	45.25	54.25	49.77	44.30	35.92	40.81	57.62	51.98	61.67	70.77	86.25
	-0.71	-0.85	-1.23	-0.93	-0.83	-0.82	-0.21	0.09	-0.06	-0.14	-0.10	-0.36	-0.16	-0.09	-0.36	-0.56	-0.35	-0.38	-0.39	-0.42	-0.53	-1.55	-2.17	-2.16
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.06	0.16	0.42	0.14	0.00	0.00	0.00	0.00	0.00	0.00	0.07	0.00	0.06	0.08	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	63.69	50.52	60.76	48.07	65.25	72.04	97.57	74.14	56.04	54.92	50.82	62.22	49.13	48.16	58.30	53.55	47.72	38.85	44.07	62.21	56.08	66.97	76.35	91.66
	2.17	1.86	2.18	1.63	2.16	3.06	4.99	4.22	3.60	3.45	3.13	3.94	3.07	2.81	3.70	3.23	3.07	2.55	2.86	4.18	3.57	3.80	3.43	3.26
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.06	0.17	0.46	0.15	0.00	0.00	0.00	0.00	0.00	0.00	0.08	0.01	0.11	0.09	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	58.40	45.94	55.15	43.76	59.90	65.41	88.76	66.72	49.96	49.68	47.07	59.19	45.28	43.82	52.47	48.21	42.69	34.59	39.19	55.91	50.07	59.76	68.71	82.93
	-3.12	-2.72	-3.43	-2.68	-3.19	-3.57	-3.81	-3.20	-2.48	-2.27	-1.94	-2.49	-1.93	-1.52	-2.13	-2.11	-1.96	-1.70	-2.02	-2.73	-2.53	-4.24	-4.92	-5.47
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.42	-1.14	-2.96	-0.99	0.00	0.00	0.00	0.00	0.00	0.00	-0.54	-0.08	-0.73	-0.61	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	61.70	46.01	58.92	45.60	51.00	41.87	38.00	69.38	51.92	51.02	47.39	58.15	45.77	44.97	54.12	50.06	58.40	55.03	40.81	57.40	51.91	63.12	73.28	88.93
	0.31	0.15	0.34	0.26	0.24	0.05	-0.56	-0.54	-0.52	-0.50	-0.47	-0.58	-0.45	-0.38	-0.49	-0.26	-0.51	-0.39	-0.39	-0.71	-0.60	-0.16	0.26	0.53
	-0.34	3.66	0.00	-0.68	-10.31	12.61	31.36	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-7.99	-6.38	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	63.69	50.55	60.82	48.15	65.41	72.21	97.82	74.27	56.02	54.90	50.84	62.23	49.14	48.20	58.30	53.53	47.72	38.84	44.10	62.29	56.11	66.96	76.31	91.69
	2.17	1.89	2.24	1.71	2.31	3.23	5.25	4.35	3.58	3.43	3.15	3.96	3.07	2.85	3.69	3.21	3.06	2.55	2.89	4.26	3.61	3.79	3.38	3.28
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.06	0.17	0.45	0.15	0.00	0.00	0.00	0.00	0.00	0.00	0.08	0.01	0.11	0.09	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	74.73	115.83	87.31	77.03	91.14	73.79	99.87	76.11	83.92	86.25	99.14	80.23	85.94	93.60	110.21	87.17	81.97	74.38	88.17	107.62	102.38	84.35	86.17	93.42
	3.95	3.41	4.09	3.18	4.23	4.81	7.30	6.19	5.19	4.94	4.49	5.58	4.40	4.05	5.18	4.65	4.33	3.55	4.01	5.70	5.04	5.57	5.22	4.78
	-9.26	-63.75	-24.64	-27.41	-23.82	0.00	0.00	0.00	-26.29	-29.78	-46.79	-15.92	-35.31	-44.20	-50.43	-32.20	-32.99	-34.53	-42.95	-43.81	-44.82	-15.51	-7.93	-0.23
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MHK VL 61756	64.82	51.23	61.56	48.78	66.54	73.07	97.87	73.45	54.27	53.33	49.86	61.09	48.09	46.94	56.22	51.65	45.75	37.21	42.36	60.04	53.99	64.71	74.53	90.14
	3.30	2.57	2.98	2.34	3.45	4.09	5.30	3.53	1.83	1.81	2.00	2.36	1.87	1.60	1.61	1.33	1.10	0.92	1.16	1.93	1.48	1.43	1.51	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

MILLWD 61759	63.53	50.42	60.65	47.98	65.14	71.92	97.44	74.06	55.94	54.82	50.76	62.13	49.07	48.10	58.21	53.47	47.66	38.79	44.02	62.16	56.02	66.87	76.24	91.52
	2.01	1.75	2.07	1.54	2.05	2.93	4.87	4.14	3.50	3.36	3.07	3.86	3.00	2.75	3.61	3.15	3.01	2.50	2.81	4.13	3.52	3.71	3.31	3.11
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.06	0.17	0.45	0.15	0.00	0.00	0.00	0.00	0.00	0.00	0.08	0.01	0.11	0.09	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	64.09	50.80	61.06	48.32	65.59	72.41	98.16	74.70	58.93	64.97	91.98	93.49	94.23	84.87	78.97	82.49	84.93	88.41	84.62	75.02	58.24	67.38	76.78	92.13
	2.57	2.13	2.48	1.88	2.50	3.43	5.59	4.78	4.07	3.88	3.46	4.23	3.30	3.06	3.98	3.48	3.29	2.73	3.08	4.51	3.91	4.22	3.85	3.73
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-2.41	-9.57	-40.66	-30.53	-44.71	-36.46	-20.38	-28.69	-36.99	-49.39	-40.34	-12.40	-1.81	0.11	0.09	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

NORTH 61755	63.66	50.71	61.00	48.39	65.76	71.58	94.83	70.25	52.25	51.55	47.68	58.49	46.07	45.22	54.41	50.25	44.41	36.10	40.97	57.56	51.97	63.56	73.88	89.63
	2.14	2.04	2.42	1.96	2.67	2.59	2.26	0.34	-0.20	0.03	-0.19	-0.24	-0.15	-0.13	-0.19	-0.07	-0.24	-0.20	-0.23	-0.55	-0.55	0.28	0.86	1.23
	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	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	59.48	53.95	60.60	47.99	41.00	37.87	46.74	73.18	55.14	54.06	49.98	61.36	48.32	47.04	57.00	52.09	61.00	57.50	42.96	60.75	55.11	65.95	75.80	91.22
	1.98	1.75	2.02	1.56	1.00	1.50	2.53	3.26	2.70	2.59	2.20	2.78	2.10	1.69	2.39	1.77	2.09	2.08	1.75	2.65	2.61	2.77	2.86	2.81
	5.29	-2.68	0.00	0.00	0.45	18.07	25.71	0.00	0.00	0.05	0.08	0.14	0.00	0.00	0.00	0.00	-7.99	-6.38	0.00	0.00	0.01	0.10	0.08	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	50.01	40.67	51.87	41.23	56.59	30.65	36.93	60.24	44.88	39.72	28.59	17.48	28.84	39.85	47.67	44.01	51.88	47.75	35.68	43.99	44.62	45.43	55.71	77.20
	-7.49	-5.20	-6.71	-5.20	-6.50	-5.72	-7.28	-9.67	-7.56	-7.12	-6.49	-8.06	-6.25	-5.49	-6.93	-6.31	-7.03	-6.81	-5.52	-8.14	-7.01	-9.71	-10.54	-11.21
	5.29	3.66	0.00	0.00	0.00	18.07	25.71	0.00	0.00	4.68	12.78	33.19	11.13	0.00	0.00	0.00	-7.99	-5.52	0.00	5.98	0.88	8.14	6.78	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	57.86	46.00	54.10	42.00	59.24	37.03	45.47	65.85	50.11	49.94	48.50	54.01	47.74	47.47	54.75	50.77	61.89	59.60	43.92	55.41	49.72	56.64	56.95	82.34
	0.36	0.13	-4.48	-0.49	-3.85	0.67	1.26	-4.07	-2.65	-2.12	-2.73	-3.58	-2.65	-2.67	-2.53	-3.32	-0.37	0.83	-2.58	-3.39	-2.90	-5.34	-0.61	-6.06
	5.29	3.66	0.00	0.58	0.00	18.07	25.71	0.00	-0.32	-0.53	-3.36	1.13	-4.16	-4.79	-2.68	-3.77	-11.33	-9.73	-5.30	-0.69	-0.10	1.29	3.58	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	55.95	43.86	52.62	41.83	57.53	62.13	83.69	62.08	46.34	41.41	30.62	20.99	30.71	40.94	48.99	45.10	39.96	32.44	36.66	45.86	45.98	47.34	57.44	78.84
	-5.57	-4.80	-5.96	-4.61	-5.57	-6.86	-8.88	-7.83	-6.11	-5.71	-5.20	-6.46	-5.02	-4.40	-5.61	-5.23	-4.69	-3.86	-4.54	-6.59	-5.69	-8.25	-9.18	-9.57
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.41	12.05	31.27	10.49	0.00	0.00	0.00	0.00	0.00	0.00	5.66	0.84	7.69	6.40	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