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: 08/01/2008

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	74.04	65.87	80.19	69.11	71.03	89.09	63.08	77.63	83.09	96.24	101.31	98.43	85.90	82.75	70.84	98.37	131.08	99.73	100.08	106.99	109.49	102.46	92.02	103.57
	2.79	2.79	3.16	2.51	2.95	3.77	3.01	4.15	4.93	5.64	5.84	5.20	4.94	4.79	3.91	5.74	7.09	5.42	5.57	5.55	6.06	5.45	4.84	4.87
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.18	2.82	4.38	5.37	2.71	0.00	2.23	1.70	0.03	-0.05	-0.09	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	70.68	62.10	75.67	64.96	66.93	83.85	59.36	73.40	78.31	91.31	96.39	95.16	87.67	87.40	78.04	98.42	125.66	99.39	98.01	102.04	103.50	97.38	87.37	98.13
	-0.57	-0.98	-1.37	-1.63	-1.15	-1.48	-0.71	-0.08	0.15	0.72	0.92	1.57	1.28	1.05	0.87	0.63	1.67	0.81	0.26	0.54	0.12	0.45	0.19	-0.57
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.17	-2.61	-4.01	-4.87	-2.46	0.00	-2.03	-1.55	-0.03	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	77.85	68.65	83.31	71.32	73.27	92.26	65.84	81.38	87.08	101.18	106.77	106.41	123.50	137.95	136.82	134.94	138.14	131.32	125.50	113.63	117.23	110.57	97.13	108.74
	6.60	5.57	6.27	4.73	5.19	6.94	5.77	7.90	8.92	10.58	11.30	11.08	10.08	9.79	8.36	11.22	14.14	11.42	11.44	11.82	12.80	11.79	9.94	10.04
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.92	-29.64	-45.81	-56.15	-28.38	0.00	-23.37	-17.85	-0.33	-1.04	-1.86	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	69.47	60.77	74.16	63.92	65.58	82.24	57.77	71.37	76.22	89.09	94.50	93.73	86.07	85.37	76.05	96.48	124.18	97.66	95.69	99.67	100.56	94.93	85.26	95.97
	-1.79	-2.31	-2.88	-2.68	-2.50	-3.08	-2.30	-2.12	-1.94	-1.50	-0.97	0.20	0.39	0.09	0.10	-0.71	0.19	-0.41	-1.69	-1.82	-2.82	-1.99	-1.92	-2.73
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.12	-1.89	-2.92	-3.65	-1.86	0.00	-1.53	-1.17	-0.02	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	74.85	62.11	75.95	66.05	67.16	84.13	76.00	71.56	75.92	88.01	92.70	90.65	81.08	79.74	103.78	92.38	120.23	93.65	93.35	69.99	78.92	94.15	78.02	96.52
	-1.32	-0.96	-1.09	-0.54	-0.92	-1.20	-1.17	-1.92	-2.24	-2.59	-2.77	-2.77	-2.70	-2.61	-3.50	-2.96	-3.76	-2.89	-2.86	-1.96	-1.94	-2.78	-2.12	-2.18
	1.86	0.00	0.00	0.00	0.00	0.00	-14.57	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.16	0.00	0.00	0.00	0.00	-2.07	-13.97	0.00	11.06	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	77.50	68.43	83.04	71.16	73.11	91.84	65.48	80.89	86.55	100.74	106.37	105.84	120.11	132.90	130.70	131.76	138.04	128.72	123.62	113.57	116.85	110.00	97.09	108.57
	6.25	5.36	6.00	4.57	5.03	6.51	5.41	7.40	8.39	10.14	10.90	10.72	9.89	9.67	8.28	11.08	14.04	11.32	11.47	11.80	12.68	11.67	9.90	9.87
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.71	-26.44	-40.87	-50.12	-25.34	0.00	-20.87	-15.94	-0.30	-0.79	-1.40	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	86.49	77.49	87.21	74.33	75.03	94.80	73.88	87.39	103.41	107.60	122.60	113.49	125.60	139.51	138.16	136.96	140.68	133.45	127.70	115.77	177.88	118.43	107.97	113.51
	8.63	7.64	8.48	6.43	6.95	9.48	7.61	10.06	11.80	13.72	14.85	13.86	11.73	11.30	9.64	13.21	16.68	13.52	13.62	13.96	16.02	15.18	13.16	12.88
	-6.61	-6.77	-1.70	-1.31	0.00	0.00	-6.20	-3.84	-13.46	-3.28	-12.28	-6.21	-30.08	-45.86	-56.22	-28.42	0.00	-23.39	-17.87	-0.33	-58.48	-6.32	-7.63	-1.93
	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	72.68	64.21	78.22	67.45	69.13	86.63	61.26	75.47	80.73	94.32	99.61	97.86	91.04	91.40	81.90	102.36	128.93	103.06	101.86	105.24	107.18	100.66	90.15	101.24
	1.43	1.14	1.18	0.86	1.05	1.30	1.20	1.98	2.57	3.72	4.14	4.22	3.76	3.54	2.87	3.62	4.93	3.66	3.45	3.73	3.73	3.60	2.96	2.53
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.23	-3.50	-5.51	-6.73	-3.40	0.00	-2.86	-2.20	-0.04	-0.07	-0.13	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	77.68	68.49	83.13	71.16	73.09	92.02	65.64	81.12	86.83	100.92	106.60	106.24	123.05	137.34	136.12	134.60	138.21	131.04	125.32	113.59	117.12	110.42	97.00	108.54
	6.42	5.42	6.09	4.56	5.01	6.69	5.57	7.64	8.67	10.33	11.13	10.93	10.02	9.81	8.39	11.24	14.22	11.43	11.48	11.79	12.71	11.68	9.81	9.84
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.89	-29.24	-45.18	-55.43	-28.02	0.00	-23.07	-17.63	-0.33	-1.02	-1.82	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	140.28	80.46	87.99	82.65	83.58	98.37	71.61	88.59	117.02	110.82	112.51	129.91	133.69	140.92	144.02	144.65	141.67	139.05	158.22	167.69	173.61	164.70	174.24	171.05
	7.36	6.19	7.03	5.36	5.83	7.72	6.45	8.78	9.92	11.68	12.45	12.06	10.89	10.46	8.83	11.72	14.68	11.91	11.93	12.41	13.57	12.64	10.71	10.88
	-61.66	-11.19	-3.92	-10.69	-9.67	-5.33	-5.09	-6.32	-28.94	-8.54	-4.58	-24.44	-39.01	-48.12	-62.88	-37.59	-2.99	-30.61	-50.08	-53.81	-56.66	-55.13	-76.34	-61.47
	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	69.34	61.54	75.25	65.55	66.62	83.43	58.38	71.01	75.39	87.49	92.14	89.99	80.45	79.00	69.39	91.61	119.33	92.94	92.60	97.96	99.70	93.48	84.35	95.84
	-1.91	-1.53	-1.78	-1.05	-1.46	-1.89	-1.69	-2.48	-2.77	-3.10	-3.33	-3.43	-3.34	-3.35	-2.91	-3.73	-4.66	-3.59	-3.60	-3.51	-3.68	-3.44	-2.83	-2.86
	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	79.90	76.89	81.12	69.72	71.66	90.04	80.94	78.30	83.73	97.02	101.98	118.90	96.06	98.29	117.94	108.30	131.78	102.21	106.79	87.58	95.26	92.01	86.00	104.70
	3.73	4.41	4.09	3.12	3.58	4.71	3.78	4.81	5.57	6.42	6.51	7.33	5.46	5.41	6.47	6.43	7.79	6.45	6.48	4.40	4.41	5.58	5.86	6.00
	1.86	-1.40	0.00	0.00	0.00	0.00	-14.57	0.00	0.00	0.00	0.00	0.33	-6.82	-10.54	-5.34	-6.53	0.00	9.62	-4.10	-13.29	-23.95	1.08	11.06	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	71.62	57.27	70.36	60.73	62.31	77.82	71.22	65.92	69.80	81.40	86.23	85.86	79.12	78.56	101.24	88.70	114.25	90.25	87.96	70.21	77.81	87.54	70.31	90.07
	-4.56	-5.80	-6.67	-5.86	-5.76	-7.51	-5.95	-7.57	-8.36	-9.20	-9.24	-7.70	-6.93	-7.28	-7.43	-8.83	-9.75	-8.08	-9.62	-5.49	-6.39	-9.38	-9.82	-8.63
	1.86	0.00	0.00	0.00	0.00	0.00	-14.57	0.00	0.00	0.00	0.00	-0.15	-2.27	-3.50	-2.55	-2.19	0.00	-1.80	-1.38	-5.82	-17.31	0.00	11.06	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	55.25	55.25	72.46	61.29	63.68	79.82	79.65	72.00	77.72	88.64	93.38	97.88	103.47	114.29	127.91	99.00	150.21	113.04	106.82	109.09	115.00	125.00	89.00	40.00
	3.37	2.24	-4.58	-5.31	-4.40	-5.50	2.48	-1.58	-2.21	-2.16	-2.19	1.04	-0.46	0.82	8.28	4.27	5.89	0.63	-1.51	3.99	4.65	5.64	4.53	3.19
	26.16	18.07	0.00	0.00	0.00	0.00	-14.57	-0.09	-1.77	-0.20	-0.10	-3.42	-20.14	-31.12	-13.51	-3.42	-61.37	-15.87	-12.13	-35.23	-43.46	-31.85	6.73	51.29
	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	67.53	58.48	71.89	61.64	63.45	79.35	55.22	68.05	72.48	84.75	89.77	89.54	82.54	82.27	73.91	92.60	119.25	94.07	91.60	95.68	96.30	91.14	82.15	93.01
	-3.72	-4.60	-5.15	-4.96	-4.63	-5.97	-4.85	-5.44	-5.67	-5.85	-5.69	-4.04	-3.82	-4.06	-3.29	-5.22	-4.75	-4.51	-6.17	-5.82	-7.08	-5.78	-5.03	-5.70
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.17	-2.58	-3.99	-4.90	-2.48	0.00	-2.04	-1.56	-0.03	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