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: 10/19/2008

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	58.40	41.93	56.80	102.92	50.38	52.80	31.21	38.64	43.51	56.36	60.18	55.75	53.21	49.11	51.89	70.95	49.93	47.10	69.24	72.86	68.16	75.16	62.77	35.71
	1.50	1.43	1.43	-1.29	2.16	1.94	0.25	1.78	2.04	2.79	2.92	2.74	2.54	2.33	2.35	2.01	2.35	2.15	3.38	3.08	3.10	3.60	2.94	1.56
	-27.90	-13.50	-28.56	-128.48	-6.60	-13.56	-25.90	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-2.21	-28.58	0.00	0.00	0.00	0.00	0.00	-0.11	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	31.85	28.19	29.87	-9.14	42.13	38.65	8.10	36.85	41.36	53.12	56.71	52.44	50.07	46.25	47.13	43.30	47.11	44.57	65.20	69.70	64.56	70.51	59.13	33.96
	-0.41	-0.38	-0.29	0.14	-0.26	-0.25	0.00	-0.01	-0.10	-0.45	-0.54	-0.57	-0.60	-0.54	-0.46	-0.39	-0.48	-0.38	-0.65	-0.07	-0.50	-0.96	-0.70	-0.19
	-3.25	-1.58	-3.34	-14.99	-0.77	-1.59	-3.04	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.26	-3.33	0.00	0.00	0.00	0.00	0.00	-0.01	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	52.20	38.91	50.31	73.16	49.29	50.09	25.30	39.23	44.24	57.28	61.27	56.83	54.34	50.11	52.38	65.10	50.86	48.05	70.67	74.65	69.80	76.78	64.22	36.36
	1.69	1.52	1.54	-1.37	2.59	2.36	0.32	2.37	2.77	3.71	4.01	3.83	3.67	3.32	3.36	2.75	3.28	3.10	4.82	4.87	4.74	5.23	4.38	2.21
	-21.50	-10.39	-21.96	-98.81	-5.07	-10.43	-19.92	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.70	-22.00	0.00	0.00	0.00	0.00	0.00	-0.08	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	30.17	26.97	28.10	-12.03	40.39	36.89	7.19	35.39	39.69	50.78	54.28	50.17	47.97	44.47	45.13	40.91	45.21	42.88	62.30	66.83	62.06	67.55	56.68	32.85
	-1.33	-1.22	-1.25	0.85	-1.81	-1.62	-0.17	-1.47	-1.78	-2.79	-2.98	-2.84	-2.69	-2.32	-2.40	-1.99	-2.37	-2.07	-3.56	-2.94	-3.00	-3.92	-3.15	-1.30
	-2.48	-1.20	-2.53	-11.40	-0.58	-1.20	-2.30	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.20	-2.54	0.00	0.00	0.00	0.00	0.00	-0.01	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	29.01	26.99	26.81	-24.27	41.62	37.31	5.06	36.86	41.47	53.57	57.26	53.01	50.67	46.79	47.33	40.35	47.58	44.95	65.86	69.78	65.06	71.46	59.84	34.15
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	52.04	38.83	50.20	72.79	49.23	50.03	25.24	39.23	44.23	57.23	61.17	56.71	54.22	49.99	52.23	64.91	50.73	47.94	70.52	74.61	69.70	76.59	64.03	36.27
	1.64	1.49	1.50	-1.38	2.56	2.33	0.32	2.38	2.76	3.66	3.91	3.70	3.55	3.20	3.21	2.65	3.15	2.99	4.66	4.84	4.64	5.05	4.19	2.12
	-21.40	-10.35	-21.88	-98.44	-5.06	-10.39	-19.86	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.69	-21.90	0.00	0.00	0.00	0.00	0.00	-0.08	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	52.50	39.46	51.29	72.75	50.31	51.03	25.38	39.49	44.85	58.40	62.72	58.26	55.73	51.34	53.56	66.09	52.15	72.77	82.18	76.31	92.96	95.14	66.93	36.89
	1.98	2.06	2.50	-1.87	3.61	3.28	0.38	2.63	3.38	4.83	5.46	5.25	5.06	4.56	4.53	3.72	4.57	4.50	6.84	6.54	6.76	7.35	5.93	2.74
	-21.51	-10.40	-21.98	-98.89	-5.08	-10.44	-19.94	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.70	-22.02	0.00	-23.32	-9.48	0.00	-21.14	-16.33	-1.17	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

MHK VL 61756	32.69	28.97	30.60	-9.23	42.70	39.16	8.09	37.16	41.97	54.37	58.05	53.57	51.12	47.12	47.93	43.80	48.09	45.46	66.54	70.82	65.73	72.41	60.53	34.57
	0.43	0.38	0.38	-0.15	0.31	0.26	0.01	0.30	0.50	0.79	0.79	0.56	0.45	0.33	0.36	0.38	0.51	0.51	0.68	1.05	0.67	0.94	0.69	0.41
	-3.25	-1.59	-3.42	-15.20	-0.77	-1.58	-3.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.24	-3.06	0.00	0.00	0.00	0.00	0.00	-0.01	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	52.26	38.94	50.38	73.62	49.28	50.12	25.41	39.23	44.26	57.29	61.29	56.83	54.33	50.09	52.36	65.19	50.83	48.02	70.66	74.70	69.82	76.76	64.18	36.32
	1.67	1.50	1.51	-1.36	2.56	2.33	0.31	2.37	2.79	3.72	4.03	3.82	3.66	3.30	3.32	2.73	3.24	3.07	4.80	4.92	4.76	5.21	4.34	2.17
	-21.59	-10.44	-22.06	-99.25	-5.10	-10.48	-20.03	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.71	-22.11	0.00	0.00	0.00	0.00	0.00	-0.08	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	52.42	39.04	50.44	73.14	49.47	50.26	25.34	39.44	44.49	57.60	61.64	57.24	54.73	50.45	52.71	65.40	51.23	48.39	71.19	75.06	70.24	77.24	64.67	36.59
	1.91	1.64	1.65	-1.46	2.78	2.51	0.34	2.58	3.02	4.03	4.39	4.23	4.07	3.66	3.68	3.04	3.65	3.45	5.33	5.28	5.18	5.70	4.84	2.44
	-21.51	-10.40	-21.98	-98.87	-5.08	-10.44	-19.93	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.70	-22.01	0.00	0.00	0.00	0.00	0.00	-0.08	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

NORTH 61755	27.56	25.85	25.05	-25.26	37.79	33.38	3.67	32.77	37.38	48.60	51.80	47.15	45.19	41.67	42.27	35.99	43.64	41.14	58.91	62.38	57.96	65.97	54.98	31.88
	-0.71	-0.79	-1.01	2.39	-3.66	-3.58	-0.71	-4.09	-4.08	-4.97	-5.46	-5.86	-5.48	-5.12	-5.00	-3.61	-3.94	-3.81	-6.94	-7.40	-7.10	-5.49	-4.85	-2.27
	0.73	0.35	0.75	3.37	0.17	0.36	0.68	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.06	0.75	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	55.86	40.66	54.16	91.27	49.72	51.48	28.85	38.56	43.50	56.35	60.23	55.84	53.42	49.35	51.94	68.61	50.14	47.20	69.12	72.55	68.03	75.29	62.98	35.79
	1.44	1.38	1.39	-1.26	2.10	1.85	0.24	1.70	2.03	2.78	2.97	2.84	2.75	2.56	2.60	2.25	2.56	2.25	3.27	2.77	2.97	3.73	3.15	1.63
	-25.41	-12.29	-25.96	-116.81	-6.00	-12.33	-23.55	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-2.01	-26.01	0.00	0.00	0.00	0.00	0.00	-0.10	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	29.32	26.10	27.48	-9.36	39.00	35.63	7.40	33.60	37.37	47.38	50.62	46.73	44.76	41.57	42.25	38.86	42.27	38.00	57.34	61.62	57.43	62.76	53.10	31.32
	-2.59	-2.29	-2.30	1.56	-3.30	-3.09	-0.36	-3.26	-4.10	-6.19	-6.64	-6.28	-5.90	-5.22	-5.31	-4.46	-5.32	-4.28	-8.51	-8.16	-7.62	-8.71	-6.73	-2.83
	-2.90	-1.40	-2.97	-13.35	-0.69	-1.41	-2.69	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.23	-2.97	0.00	-2.72	0.00	0.00	0.00	-0.01	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	42.16	32.36	40.97	47.90	43.55	42.99	19.16	35.48	39.99	50.50	53.73	49.60	47.20	43.39	45.53	53.33	44.36	41.89	62.41	66.00	56.00	66.76	56.30	32.42
	-2.28	-2.10	-1.61	1.27	-1.72	-1.80	-0.20	-1.38	-1.48	-3.07	-3.53	-3.40	-3.47	-3.39	-3.01	-2.81	-3.23	-3.06	-3.44	1.38	1.63	-4.76	-3.54	-1.73
	-15.42	-7.46	-15.76	-70.90	-3.64	-7.48	-14.29	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.22	-15.78	0.00	0.00	0.00	-0.24	24.18	-0.06	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	30.04	26.60	28.31	-8.04	39.91	36.51	7.84	34.46	38.33	48.66	51.95	47.96	45.86	42.46	43.27	39.99	43.18	40.93	58.93	63.64	59.12	64.49	54.50	31.96
	-2.24	-1.98	-1.85	1.18	-2.48	-2.38	-0.26	-2.39	-3.14	-4.91	-5.31	-5.05	-4.81	-4.32	-4.32	-3.71	-4.40	-4.01	-6.93	-6.14	-5.94	-6.98	-5.33	-2.19
	-3.28	-1.59	-3.35	-15.05	-0.77	-1.59	-3.04	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.26	-3.35	0.00	0.00	0.00	0.00	0.00	-0.01	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