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: 07/05/2008

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	137.31	85.88	163.95	143.68	131.14	166.12	150.03	190.59	137.71	134.15	135.38	132.59	139.41	141.49	140.83	140.11	143.92	145.58	143.31	139.26	137.74	140.88	138.30	138.01
	7.00	4.14	7.75	6.68	6.03	7.51	7.45	9.75	6.79	6.28	5.85	6.16	5.81	6.17	6.04	5.98	6.02	6.61	6.91	7.01	6.78	6.52	6.72	7.35
	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	127.14	79.46	151.90	133.26	121.14	154.78	138.95	176.25	126.74	125.29	128.02	125.56	132.78	134.94	134.02	133.85	137.57	138.46	135.76	131.73	130.68	134.01	131.32	129.68
	-3.17	-2.29	-4.30	-3.74	-3.97	-3.83	-3.62	-4.39	-3.75	-2.58	-1.52	-0.86	-0.81	-0.38	-0.76	-0.28	-0.32	-0.51	-0.64	-0.52	-0.29	-0.35	-0.26	-0.98
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.19	0.44	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

DUNWOD 61760	140.00	87.88	166.86	146.14	133.77	169.25	152.90	194.34	140.00	137.61	139.85	137.89	144.47	146.69	145.97	145.32	149.12	150.29	147.55	143.47	142.50	145.63	143.07	142.28
	9.69	6.13	10.67	9.14	8.66	10.65	10.32	13.65	9.45	9.73	10.32	11.46	10.88	11.37	11.19	11.19	11.23	11.33	11.15	11.22	11.54	11.27	11.50	11.62
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.37	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

GENESE 61753	122.06	76.38	145.57	127.99	116.18	148.52	132.66	169.29	123.87	120.56	123.86	121.95	129.33	131.54	130.54	130.69	134.33	135.13	132.57	128.24	126.98	130.37	127.92	126.42
	-8.25	-5.36	-10.63	-9.01	-8.93	-10.08	-9.92	-12.52	-9.29	-7.32	-5.67	-4.48	-4.27	-3.78	-4.25	-3.44	-3.56	-3.83	-3.83	-4.01	-3.98	-3.99	-3.66	-4.24
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.96	-2.24	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

H Q 61844	129.20	81.17	155.14	136.08	124.36	0.00	66.64	179.41	86.46	82.67	82.08	124.09	131.69	133.00	111.41	99.62	97.16	106.78	98.00	129.82	128.53	98.84	129.13	102.20
	-1.11	-0.57	-1.05	-0.92	-0.75	-0.59	-0.33	-1.42	-0.65	-1.22	-1.44	-2.34	-1.90	-2.32	-1.88	-2.32	-1.90	-1.94	-1.63	-2.42	-2.43	-1.66	-2.45	-1.78
	0.00	0.00	0.00	0.00	0.00	73.74	-11.16	0.00	42.86	38.37	35.79	0.00	0.00	0.00	4.43	20.17	6.17	12.25	8.95	0.00	0.00	0.94	0.00	14.44
	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	139.16	87.30	166.06	145.47	133.06	168.49	152.20	193.50	139.46	137.13	139.34	137.33	144.05	146.37	145.66	145.01	148.83	150.01	147.28	143.12	142.00	145.19	142.54	141.63
	8.86	5.55	9.86	8.47	7.95	9.89	9.62	12.81	8.91	9.25	9.81	10.90	10.45	11.05	10.88	10.88	10.94	11.05	10.88	10.88	11.03	10.83	10.96	10.96
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.37	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

LONGIL 61762	143.65	91.17	171.80	152.49	139.44	175.79	159.71	199.07	142.41	140.33	143.70	144.86	148.10	149.90	149.39	148.82	151.73	152.70	150.31	147.19	151.43	149.43	146.58	145.31
	12.39	9.42	15.60	15.49	14.33	17.18	17.14	18.39	11.85	12.39	13.75	15.38	14.27	14.57	14.60	14.61	13.83	13.73	13.91	14.79	15.40	14.94	15.00	14.64
	-0.96	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.37	-0.07	-0.42	-3.05	-0.24	-0.01	-0.01	-0.08	0.00	0.00	0.00	-0.15	-5.07	-0.14	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

MHK VL 61756	132.40	82.81	158.04	138.62	126.46	160.61	144.41	183.59	132.93	130.84	133.14	130.31	137.59	139.15	138.34	137.74	141.61	142.66	139.91	135.76	134.60	138.21	135.09	133.58
	2.09	1.07	1.84	1.62	1.35	2.01	1.83	2.88	2.32	2.97	3.61	3.88	4.00	3.83	3.56	3.61	3.71	3.70	3.51	3.52	3.63	3.85	3.51	2.92
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.13	0.31	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	139.75	87.68	166.57	145.88	133.47	168.94	152.65	194.01	139.87	137.51	139.82	137.92	144.55	146.80	146.08	145.44	149.20	150.36	147.62	143.52	142.48	145.63	143.02	142.09
	9.44	5.93	10.38	8.88	8.36	10.33	10.07	13.33	9.32	9.64	10.28	11.49	10.95	11.48	11.30	11.31	11.31	11.39	11.22	11.27	11.52	11.27	11.44	11.43
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.37	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

N.Y.C. 61761	145.63	88.47	167.73	146.88	134.53	170.11	153.64	195.11	140.59	138.11	140.25	138.36	144.86	147.08	146.35	145.71	149.45	150.71	147.91	143.83	142.88	145.98	143.59	142.90
	10.61	6.72	11.53	9.89	9.41	11.50	11.06	14.43	10.04	10.24	10.72	11.93	11.27	11.76	11.57	11.58	11.55	11.74	11.51	11.58	11.92	11.62	12.01	12.24
	-4.71	0.00	0.00	0.00	0.00	0.00	0.00	0.16	0.37	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

NORTH 61755	129.02	81.06	154.91	135.92	124.21	157.56	141.51	179.29	130.46	127.08	128.29	124.08	131.79	132.92	132.46	131.73	135.70	136.75	134.09	129.66	128.33	132.09	128.86	127.53
	-1.28	-0.68	-1.29	-1.08	-0.90	-1.05	-1.07	-1.55	-0.46	-0.79	-1.24	-2.35	-1.80	-2.40	-2.32	-2.40	-2.20	-2.21	-2.31	-2.59	-2.64	-2.27	-2.72	-3.13
	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	137.74	86.20	164.35	144.07	131.65	70.80	70.00	191.29	94.55	90.00	89.95	133.85	129.00	142.75	120.00	109.00	105.00	115.00	105.99	110.00	138.42	106.22	138.74	110.93
	7.43	4.46	8.16	7.07	6.53	3.88	3.03	10.58	7.44	6.84	6.44	7.42	7.05	7.43	6.71	7.06	5.94	6.29	6.36	6.48	7.46	5.72	7.16	6.95
	0.00	0.00	0.00	0.00	0.00	7.41	-11.16	0.13	42.86	39.12	35.79	0.00	5.54	0.00	4.43	20.17	6.17	12.25	8.95	2.28	0.00	0.94	0.00	14.44
	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	115.50	72.56	138.40	122.16	110.57	135.00	62.05	109.00	67.94	10.00	69.13	114.43	121.56	123.69	101.34	90.85	89.41	98.58	88.57	120.36	119.39	89.47	110.00	135.00
	-14.80	-9.19	-17.79	-14.84	-14.54	-6.38	-4.92	-7.36	-19.17	-14.67	-14.37	-12.00	-12.04	-11.62	-11.95	-11.10	-9.65	-10.13	-11.05	-11.89	-11.57	-11.03	-9.30	-12.09
	0.00	0.00	0.00	0.00	0.00	-67.05	-11.16	-29.57	42.86	97.60	35.79	0.00	0.00	0.00	4.43	20.17	6.17	12.25	8.95	0.00	0.00	0.94	-19.32	-28.67
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

PJM 61847	121.93	75.57	145.78	127.61	115.05	67.89	68.23	169.49	65.00	75.60	87.71	120.88	127.94	130.80	117.76	107.20	103.37	113.58	102.99	127.44	126.90	104.48	128.13	200.05
	-9.01	-6.18	-10.41	-9.40	-10.06	0.98	1.27	-9.40	2.08	2.45	4.21	-5.55	-5.66	-4.52	4.47	5.25	4.32	4.87	3.37	-4.81	-4.06	3.98	-3.45	4.59
	-0.63	0.00	0.00	0.00	0.00	7.41	-11.16	1.95	67.05	49.11	35.79	0.00	0.00	0.00	4.43	20.17	6.17	12.25	8.95	0.00	0.00	0.94	0.00	-77.05
	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	117.75	73.79	140.99	124.07	112.04	144.29	128.23	151.45	92.28	115.24	119.06	117.38	124.58	127.05	125.74	126.23	129.58	130.08	127.69	123.72	122.79	126.13	124.58	123.50
	-12.56	-7.96	-15.21	-12.93	-13.07	-14.31	-14.35	-19.29	-15.10	-12.63	-10.47	-9.05	-9.02	-8.27	-9.04	-7.90	-8.31	-8.88	-8.71	-8.53	-8.17	-8.23	-7.00	-7.16
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	10.10	23.54	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