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: 07/31/2008

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	76.02	68.66	71.89	74.23	66.69	91.25	86.97	83.44	93.08	96.84	113.73	116.85	128.64	126.27	123.85	116.91	99.68	121.54	121.83	104.91	105.42	94.42	85.80	113.42
	3.20	2.75	2.79	2.96	2.72	3.40	3.61	3.94	4.48	4.96	6.31	6.49	6.95	7.52	7.07	6.06	5.67	6.97	6.44	5.35	6.01	5.12	4.07	4.76
	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	-0.63	-1.69	-0.46	0.00	-0.52	-0.88	-0.36	-0.10	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	72.31	64.79	67.92	69.93	62.92	86.55	82.93	80.08	89.76	93.93	109.75	113.25	124.82	120.68	119.03	113.01	93.68	116.28	118.36	101.01	99.67	89.95	82.48	108.88
	-0.51	-1.12	-1.18	-1.34	-1.06	-1.29	-0.44	0.58	1.16	2.06	2.33	2.89	3.13	1.93	2.25	2.78	1.37	2.18	2.97	1.97	1.14	1.01	0.85	0.22
	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

DUNWOD 61760	79.95	71.99	75.24	77.43	69.38	95.27	91.43	88.08	98.39	102.36	119.98	122.67	134.93	132.08	129.90	136.02	137.59	136.80	128.54	121.31	128.20	106.91	92.80	119.19
	7.13	6.08	6.14	6.17	5.41	7.42	8.07	8.58	9.79	10.48	12.56	12.31	13.24	13.33	13.12	12.83	10.66	13.13	13.15	11.66	11.87	10.57	9.11	10.53
	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	-12.97	-34.61	-9.57	0.00	-10.60	-17.80	-7.39	-2.05	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	71.11	63.09	66.13	67.89	61.28	84.60	80.63	77.66	87.48	92.64	108.42	112.69	124.75	120.83	119.13	112.74	93.31	115.57	117.54	100.14	98.09	88.63	81.28	106.75
	-1.71	-2.82	-2.97	-3.37	-2.70	-3.25	-2.73	-1.84	-1.12	0.76	1.00	2.32	3.05	2.08	2.35	2.52	1.00	1.47	2.15	1.10	-0.44	-0.32	-0.35	-1.91
	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

H Q 61844	71.34	64.88	68.08	70.21	63.05	86.59	81.75	77.28	86.13	88.87	103.88	106.79	123.14	114.75	112.85	106.39	89.20	110.26	111.70	95.91	95.35	93.20	79.07	106.41
	-1.48	-1.04	-1.02	-1.05	-0.93	-1.26	-1.61	-2.22	-2.47	-3.00	-3.53	-3.57	-3.96	-4.00	-3.93	-3.83	-3.12	-3.85	-3.70	-3.13	-3.18	-2.58	-2.56	-2.25
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-8.43	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	79.61	71.66	74.86	77.11	69.19	94.83	90.93	87.65	98.11	102.17	119.79	122.60	134.74	131.97	129.71	132.66	129.18	134.33	128.59	118.72	123.83	104.97	92.00	118.88
	6.79	5.75	5.76	5.85	5.21	6.99	7.57	8.15	9.51	10.29	12.38	12.24	13.05	13.22	12.93	12.58	10.51	12.93	13.19	11.59	11.73	10.40	8.80	10.22
	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	-9.85	-26.36	-7.30	0.00	-8.09	-13.57	-5.63	-1.56	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	84.89	74.26	77.27	79.34	71.29	97.64	93.79	92.34	103.84	105.64	123.30	125.00	137.08	134.33	132.27	138.64	139.55	139.51	131.16	123.50	130.36	110.64	104.64	121.93
	9.23	7.92	8.17	8.08	7.31	9.80	10.43	10.85	12.65	13.74	15.88	14.64	15.39	15.57	15.49	15.44	12.61	15.84	15.76	13.85	14.02	12.92	11.83	13.27
	-2.84	-0.42	0.00	0.00	0.00	0.00	0.00	-1.99	-2.59	-0.03	0.00	0.00	0.00	0.00	0.00	-12.97	-34.62	-9.57	0.00	-10.60	-17.80	-8.78	-11.18	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	74.28	66.90	70.06	72.24	65.04	89.33	85.29	81.90	92.35	96.20	112.57	115.84	126.84	123.17	121.06	115.19	97.60	118.80	120.24	103.56	103.36	92.91	84.36	111.56
	1.46	0.99	0.96	0.98	1.06	1.49	1.93	2.40	3.75	4.33	5.15	5.47	5.15	4.42	4.28	4.19	3.20	4.12	4.85	3.88	3.75	3.51	2.60	2.90
	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	-0.78	-2.08	-0.58	0.00	-0.64	-1.08	-0.45	-0.13	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	79.75	71.80	75.01	77.22	69.17	94.98	91.15	87.84	98.15	102.06	119.75	122.58	134.93	132.18	129.95	135.77	136.93	136.70	128.70	121.13	127.83	106.71	92.65	119.03
	6.93	5.89	5.91	5.96	5.19	7.13	7.79	8.34	9.55	10.18	12.33	12.22	13.24	13.43	13.17	12.85	10.72	13.23	13.31	11.70	11.86	10.53	9.01	10.37
	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	-12.69	-33.89	-9.37	0.00	-10.38	-17.44	-7.24	-2.01	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	96.48	82.00	76.92	80.21	70.05	98.68	97.92	110.50	142.61	166.82	155.42	130.07	138.94	136.30	134.35	139.66	140.86	140.20	133.05	126.70	135.53	135.67	131.16	172.47
	7.91	6.77	6.82	6.92	6.07	8.36	8.97	9.49	10.93	11.61	13.88	13.62	14.46	14.35	14.03	13.60	11.19	13.72	13.84	12.41	12.73	11.51	9.91	11.68
	-15.74	-9.32	-0.99	-2.03	0.00	-2.47	-5.58	-21.51	-43.08	-63.34	-34.12	-6.09	-2.80	-3.20	-3.53	-15.84	-37.35	-12.38	-3.82	-15.25	-24.26	-35.22	-39.61	-52.12
	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	70.53	64.16	67.36	69.50	62.45	85.70	81.03	76.70	85.58	88.04	103.07	105.98	116.68	113.69	111.61	104.97	88.09	108.94	110.50	95.00	94.45	85.22	78.10	105.35
	-2.29	-1.76	-1.74	-1.76	-1.53	-2.15	-2.33	-2.80	-3.02	-3.84	-4.35	-4.38	-5.01	-5.06	-5.17	-5.26	-4.22	-5.17	-4.89	-4.04	-4.08	-3.72	-3.53	-3.31
	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	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	77.00	69.61	73.02	75.35	67.55	92.37	88.17	84.48	93.82	97.42	114.34	117.15	135.20	142.00	135.00	122.34	112.47	125.91	122.53	109.31	115.00	109.45	95.08	114.73
	4.17	3.70	3.92	4.09	3.57	4.52	4.81	4.98	5.22	5.54	6.92	6.79	8.10	7.75	8.63	7.02	6.54	8.04	7.13	6.10	7.33	5.81	5.57	6.07
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.41	-6.68	-1.29	-5.09	-13.62	-3.76	0.00	-4.17	-4.38	-16.31	9.58	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

O H 61846	67.30	59.36	62.48	63.95	57.77	79.82	75.36	71.53	65.00	64.00	99.44	103.79	118.10	111.21	110.32	104.95	86.66	107.57	109.86	93.51	90.81	89.00	76.07	100.06
	-5.52	-6.55	-6.62	-7.31	-6.21	-8.03	-8.00	-7.97	-10.02	-8.07	-7.98	-6.57	-9.00	-7.54	-6.46	-5.28	-5.65	-6.54	-5.54	-5.53	-7.72	-6.77	-5.56	-8.60
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	6.86	17.46	0.00	0.00	-3.41	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-8.43	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	55.00	61.52	64.73	66.67	59.82	82.78	65.00	88.00	105.00	96.31	107.78	110.19	135.45	116.63	130.29	135.50	112.17	120.34	118.48	105.74	107.99	113.21	80.90	31.00
	2.25	-4.39	-4.37	-4.59	-4.16	-5.07	3.57	4.93	5.23	-0.12	-0.55	-0.28	8.35	-2.12	7.38	9.49	-1.58	0.32	3.09	0.13	-1.56	5.04	5.30	3.72
	23.09	0.00	0.00	0.00	0.00	0.00	14.27	-10.23	-17.88	-4.56	-0.91	-0.11	-3.41	0.00	2.17	-1.99	-21.43	-5.92	0.00	-6.56	-11.02	-20.83	23.48	72.53
	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	68.65	60.58	63.71	65.29	58.87	81.51	77.47	74.48	83.43	88.94	103.75	107.99	119.74	115.13	114.02	108.70	89.32	111.28	113.86	96.77	94.08	84.92	78.76	103.72
	-4.17	-5.33	-5.40	-5.97	-5.10	-6.33	-5.89	-5.02	-5.17	-2.93	-3.67	-2.37	-1.95	-3.62	-2.76	-1.53	-2.99	-2.82	-1.53	-2.28	-4.45	-4.03	-2.87	-4.94
	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