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: 10/30/2008

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	52.43	53.82	60.08	45.34	42.81	55.57	80.38	98.95	70.35	70.99	56.86	52.81	50.07	74.21	54.11	48.70	45.64	48.32	63.16	67.46	63.62	52.45	49.96	55.69
	2.10	1.62	1.18	1.87	1.80	2.38	3.29	4.13	3.20	3.45	2.70	2.34	2.34	2.48	2.57	2.30	2.14	2.05	2.88	2.84	2.75	2.37	1.88	0.78
	-0.39	-16.08	-33.15	-2.40	-1.29	0.00	0.00	0.00	0.00	-1.40	0.00	0.00	0.00	-23.23	0.00	0.00	0.00	-3.09	0.00	0.00	0.00	0.00	-6.50	-37.63
	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	50.95	38.77	30.42	42.01	40.51	54.50	79.33	98.08	68.94	67.84	55.49	52.00	49.00	52.43	52.49	47.24	44.26	44.15	60.86	65.64	61.57	50.56	42.71	21.81
	0.97	0.55	0.35	0.61	0.63	1.30	2.24	3.25	1.80	1.52	1.34	1.53	1.27	0.91	0.96	0.84	0.76	0.55	0.57	1.03	0.70	0.48	0.36	0.12
	-0.05	-2.09	-4.32	-0.31	-0.17	0.00	0.00	0.00	0.00	-0.18	0.00	0.00	0.00	-3.02	0.00	0.00	0.00	-0.42	0.00	0.00	0.00	0.00	-0.76	-4.40
	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	53.50	51.86	54.88	45.75	43.46	56.68	82.25	101.16	72.65	73.06	58.84	54.79	51.95	71.82	56.18	50.52	47.45	49.44	65.31	69.84	65.98	53.99	49.55	46.96
	3.24	2.42	1.70	2.69	2.67	3.48	5.16	6.33	5.50	5.77	4.68	4.33	4.22	4.19	4.64	4.12	3.95	3.71	5.02	5.22	5.11	3.90	3.03	1.12
	-0.33	-13.30	-27.44	-1.98	-1.07	0.00	0.00	0.00	0.00	-1.16	0.00	0.00	0.00	-19.12	0.00	0.00	0.00	-2.54	0.00	0.00	0.00	0.00	-4.93	-28.56
	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	49.51	37.25	28.70	40.86	39.47	53.32	78.04	96.82	66.98	65.58	53.83	50.47	47.52	50.22	50.75	45.66	42.76	42.53	58.38	63.15	59.11	48.78	41.11	20.08
	-0.46	-0.45	-0.32	-0.46	-0.37	0.13	0.96	1.99	-0.17	-0.69	-0.33	0.00	-0.21	-0.58	-0.78	-0.73	-0.74	-0.97	-1.91	-1.47	-1.76	-1.31	-1.04	-0.48
	-0.04	-1.58	-3.27	-0.24	-0.13	0.00	0.00	0.00	0.00	-0.13	0.00	0.00	0.00	-2.30	0.00	0.00	0.00	-0.31	0.00	0.00	0.00	0.00	-0.57	-3.28
	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	60.13	36.13	25.75	41.08	39.72	57.83	77.09	94.83	67.15	66.13	54.15	50.47	47.73	48.50	51.54	46.40	43.50	43.18	60.29	64.61	60.87	50.08	41.59	17.28
	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
	-14.17	0.00	0.00	0.00	0.00	-9.40	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	53.41	51.80	54.78	45.83	43.57	56.86	82.44	101.23	72.46	72.78	58.49	54.44	51.60	71.36	55.87	50.23	47.18	49.16	64.97	69.54	65.69	53.77	49.30	46.49
	3.15	2.44	1.73	2.78	2.79	3.66	5.36	6.41	5.31	5.49	4.33	3.97	3.87	3.88	4.33	3.84	3.68	3.45	4.68	4.92	4.83	3.68	2.86	1.07
	-0.33	-13.24	-27.31	-1.97	-1.07	0.00	0.00	0.00	0.00	-1.15	0.00	0.00	0.00	-18.97	0.00	0.00	0.00	-2.53	0.00	0.00	0.00	0.00	-4.85	-28.14
	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	54.93	52.77	55.49	46.64	44.34	57.88	83.43	102.64	74.13	74.71	60.62	56.43	53.42	72.91	57.47	51.62	48.43	50.60	68.48	72.49	68.00	57.11	99.88	103.43
	4.67	3.34	2.29	3.58	3.55	4.68	6.34	7.81	6.98	7.42	6.47	5.97	5.69	5.28	5.94	5.22	4.94	4.88	6.96	7.03	7.13	5.51	4.49	1.72
	-0.33	-13.31	-27.45	-1.98	-1.07	0.00	0.00	0.00	0.00	-1.16	0.00	0.00	0.00	-19.13	0.00	0.00	0.00	-2.55	-1.24	-0.84	0.00	-1.51	-53.80	-84.43
	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	50.78	39.04	31.05	42.24	40.69	54.65	79.93	98.12	69.26	67.95	55.57	51.81	48.84	52.81	52.72	47.45	44.29	44.33	61.38	65.91	61.87	50.77	42.82	21.75
	0.79	0.58	0.44	0.81	0.78	1.46	2.84	3.29	2.11	1.62	1.42	1.35	1.11	1.07	1.19	1.05	0.80	0.71	1.10	1.30	1.01	0.69	0.50	0.18
	-0.06	-2.33	-4.86	-0.35	-0.19	0.00	0.00	0.00	0.00	-0.20	0.00	0.00	0.00	-3.24	0.00	0.00	0.00	-0.44	0.00	0.00	0.00	0.00	-0.74	-4.28
	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	53.43	51.86	54.93	45.72	43.44	56.66	82.26	101.16	72.56	72.96	58.70	54.68	51.84	71.76	56.07	50.44	47.38	49.36	65.20	69.77	65.92	53.93	49.51	47.05
	3.17	2.39	1.67	2.65	2.65	3.46	5.18	6.33	5.42	5.66	4.55	4.21	4.11	4.09	4.54	4.04	3.88	3.63	4.91	5.16	5.05	3.85	2.98	1.09
	-0.33	-13.34	-27.51	-1.99	-1.07	0.00	0.00	0.00	0.00	-1.16	0.00	0.00	0.00	-19.17	0.00	0.00	0.00	-2.55	0.00	0.00	0.00	0.00	-4.95	-28.68
	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	53.66	51.92	54.94	45.83	43.54	56.76	82.61	101.49	73.09	73.54	59.20	55.18	52.33	72.19	56.59	50.88	47.81	49.77	65.70	70.26	66.35	54.28	49.80	47.05
	3.40	2.49	1.74	2.77	2.76	3.56	5.52	6.66	5.94	6.24	5.05	4.71	4.60	4.56	5.05	4.48	4.31	4.05	5.41	5.64	5.48	4.19	3.29	1.20
	-0.33	-13.31	-27.44	-1.98	-1.07	0.00	0.00	0.00	0.00	-1.16	0.00	0.00	0.00	-19.13	0.00	0.00	0.00	-2.55	0.00	0.00	0.00	0.00	-4.93	-28.57
	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	45.23	32.63	22.66	37.56	36.40	49.22	72.35	86.32	61.16	58.38	47.57	44.28	41.70	42.05	45.31	41.09	37.86	37.03	51.48	55.08	51.72	43.15	35.94	13.56
	-4.70	-3.11	-2.28	-3.46	-3.29	-3.97	-4.74	-8.51	-5.99	-7.72	-6.58	-6.19	-6.03	-5.85	-6.22	-5.31	-5.64	-6.07	-8.81	-9.54	-9.15	-6.94	-5.35	-2.06
	0.01	0.39	0.81	0.06	0.03	0.00	0.00	0.00	0.00	0.03	0.00	0.00	0.00	0.59	0.00	0.00	0.00	0.08	0.00	0.00	0.00	0.00	0.29	1.67
	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	62.00	53.04	57.94	45.61	43.10	60.39	80.60	98.88	70.62	71.35	57.22	53.26	50.54	72.96	54.79	49.32	46.16	48.52	63.62	67.87	64.14	52.88	49.64	52.13
	1.87	2.03	1.49	2.31	2.19	2.56	3.51	4.05	3.47	3.92	3.07	2.80	2.81	3.05	3.25	2.92	2.67	2.49	3.33	3.26	3.28	2.79	2.20	0.94
	-14.17	-14.89	-30.70	-2.22	-1.20	-9.40	0.00	0.00	0.00	-1.30	0.00	0.00	0.00	-21.40	0.00	0.00	0.00	-2.85	0.00	0.00	0.00	0.00	-5.85	-33.90
	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	58.23	35.88	28.07	39.08	37.72	55.41	73.44	90.75	62.03	60.65	49.90	46.91	44.17	47.16	47.06	42.46	39.76	39.49	53.26	57.79	54.02	25.00	38.60	19.72
	-1.90	-2.10	-1.50	-2.28	-2.15	-2.41	-3.65	-4.08	-5.12	-5.64	-4.25	-3.56	-3.56	-4.02	-4.47	-3.94	-3.74	-4.06	-7.03	-6.82	-6.85	-4.41	-3.65	-1.41
	-14.17	-1.85	-3.81	-0.28	-0.15	-9.40	0.00	0.00	0.00	-0.16	0.00	0.00	0.00	-2.68	0.00	0.00	0.00	-0.36	0.00	0.00	0.00	21.52	-0.66	-3.84
	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	60.74	44.92	44.79	41.53	39.65	58.76	65.00	94.18	65.02	64.47	52.12	72.20	46.08	60.81	49.95	44.95	42.34	43.35	57.55	62.71	68.00	47.85	43.61	45.00
	0.61	-0.78	-0.69	-0.97	-0.84	0.93	3.09	-0.65	-2.13	-2.49	-2.03	2.38	-1.65	-1.45	-1.58	-1.45	-1.15	-1.66	-2.73	-1.91	2.50	-2.24	-1.45	0.55
	-14.17	-9.56	-19.72	-1.43	-0.77	-9.40	-0.09	0.00	0.00	-0.83	0.00	-5.47	0.00	-13.75	0.00	0.00	0.00	-1.83	0.00	0.00	-3.05	0.00	-3.47	0.09
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

WEST 61752	48.55	36.87	29.03	39.87	38.52	52.17	75.43	93.17	63.91	62.60	51.42	48.31	45.42	48.80	48.56	43.74	41.00	40.72	55.17	60.03	56.05	46.45	39.61	20.57
	-1.44	-1.34	-1.02	-1.52	-1.37	-1.02	-1.65	-1.66	-3.25	-3.71	-2.73	-2.16	-2.31	-2.72	-2.97	-2.66	-2.50	-2.87	-5.12	-4.58	-4.82	-3.63	-2.72	-1.06
	-0.05	-2.08	-4.30	-0.31	-0.17	0.00	0.00	0.00	0.00	-0.18	0.00	0.00	0.00	-3.02	0.00	0.00	0.00	-0.41	0.00	0.00	0.00	0.00	-0.75	-4.35
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N