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: 07/22/2008

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	131.18	139.09	131.73	117.06	130.31	113.75	118.03	109.29	129.34	108.50	117.61	103.78	129.26	104.89	100.76	-283.55	-64.44	31.97	47.06	122.40	119.85	111.29	89.66	69.16
	5.25	6.03	5.72	4.74	4.81	4.77	5.08	3.94	2.67	5.67	6.47	5.20	6.89	5.91	5.98	-16.54	-3.08	0.91	1.75	6.19	5.91	5.38	4.14	3.11
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-24.57	-80.25	0.00	0.00	-1.92	0.00	6.11	1.48	-34.48	-13.00	-7.42	-5.36	-0.45	0.00	-0.03	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	124.66	131.33	123.70	110.51	124.10	107.98	112.48	84.44	59.44	103.37	112.52	97.93	123.67	109.74	98.53	-308.32	-76.42	24.22	40.76	116.55	114.58	106.00	85.38	65.81
	-1.27	-1.73	-2.31	-1.82	-1.40	-1.00	-0.46	-0.27	0.16	0.54	1.38	1.27	1.30	0.74	0.78	-6.82	-2.05	0.58	0.81	0.80	0.63	0.12	-0.15	-0.24
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.93	-12.86	0.00	0.00	0.00	0.00	-3.91	-1.49	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	138.33	146.21	138.49	123.24	137.19	120.31	124.80	112.22	116.85	114.89	124.52	140.68	136.73	139.26	130.41	297.84	212.34	191.43	161.14	136.93	125.87	117.66	94.40	72.79
	12.40	13.16	12.49	10.91	11.69	11.33	11.85	9.28	5.67	12.06	13.38	11.17	14.36	12.40	11.56	-31.82	-6.05	1.92	3.33	11.29	11.92	11.22	8.87	6.74
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-22.16	-64.77	0.00	0.00	-32.86	0.00	-21.78	-22.59	-631.15	-292.75	-165.87	-117.86	-9.90	0.00	-0.57	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	121.80	127.38	119.86	107.23	121.08	105.62	109.90	81.01	55.02	100.53	109.19	95.34	120.15	106.10	95.63	-304.24	-76.21	24.18	40.29	113.56	111.41	103.44	83.63	64.17
	-4.13	-5.68	-6.15	-5.09	-4.43	-3.36	-3.05	-2.67	-0.98	-2.30	-1.95	-1.31	-2.22	-1.90	-1.74	-2.75	-1.86	0.54	0.35	-2.19	-2.53	-2.44	-1.90	-1.88
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-2.90	-9.58	0.00	0.00	0.00	0.00	-2.92	-1.11	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	185.10	130.36	128.77	110.09	123.09	101.47	111.05	120.37	45.23	100.44	108.20	94.23	119.35	102.50	93.87	107.72	-72.48	97.25	38.98	112.75	111.37	75.69	69.11	64.71
	-2.38	-2.70	-2.22	-2.24	-2.41	-2.49	-2.48	-2.58	-1.19	-2.39	-2.94	-2.42	-3.03	-2.59	-2.39	-2.57	1.88	-2.17	-0.96	-2.99	-2.17	-2.64	-2.16	-1.35
	-62.52	0.00	-14.15	0.00	0.00	-0.22	-13.08	-19.54	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.09	0.00	-9.05	0.00	0.00	-16.17	27.00	26.77	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	137.65	145.68	137.95	122.72	136.62	119.59	124.09	110.94	116.21	114.29	123.94	132.42	136.30	136.38	126.08	221.64	169.84	167.86	144.44	135.47	125.63	117.20	93.98	72.44
	11.73	12.62	11.94	10.40	11.12	10.61	11.14	8.69	5.36	11.45	12.80	10.79	13.93	12.13	11.59	-32.31	-6.02	1.95	3.39	11.23	11.69	10.88	8.45	6.39
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-21.47	-64.42	0.00	0.00	-24.98	0.00	-19.17	-18.22	-555.44	-250.21	-142.26	-101.11	-8.49	0.00	-0.43	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

LONGIL 61762	139.72	147.42	140.34	125.71	145.06	135.35	130.07	118.22	120.27	119.60	129.84	145.17	140.65	143.14	133.94	289.07	199.34	191.69	161.46	139.24	130.58	139.21	125.14	107.44
	13.80	14.36	14.33	13.39	14.14	14.67	14.89	12.19	7.33	15.65	16.92	13.84	17.63	15.14	13.80	-35.41	-6.07	1.99	3.53	13.59	14.53	13.99	11.56	8.88
	0.00	0.00	0.00	0.00	-5.41	-11.70	-2.23	-25.25	-66.51	-1.12	-1.77	-34.68	-0.65	-22.91	-23.87	-625.98	-279.77	-166.06	-117.99	-9.91	-2.11	-19.34	-28.05	-32.50
	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	128.78	135.76	128.33	114.39	128.01	111.34	115.94	86.91	60.18	106.92	116.13	103.13	127.63	113.64	103.03	-266.08	-57.13	35.39	49.12	120.43	118.06	109.64	88.12	67.84
	2.86	2.70	2.32	2.07	2.50	2.37	2.99	2.39	1.74	4.09	4.98	4.34	5.25	4.46	4.26	-13.20	-2.81	0.84	1.46	4.03	4.12	3.73	2.60	1.79
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.74	-12.02	0.00	0.00	-2.14	0.00	-4.09	-2.52	-48.62	-20.04	-10.90	-7.73	-0.65	0.00	-0.03	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	138.06	145.91	138.18	122.91	136.84	119.94	124.45	112.00	117.04	114.65	124.27	139.85	136.60	138.80	129.98	289.87	207.59	189.28	159.63	136.83	125.76	117.51	94.20	72.59
	12.14	12.86	12.17	10.59	11.33	10.96	11.51	9.03	5.55	11.82	13.13	11.04	14.23	12.32	11.55	-32.10	-6.03	1.95	3.37	11.31	11.82	11.08	8.67	6.54
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-22.19	-65.06	0.00	0.00	-32.15	0.00	-21.39	-22.16	-623.47	-287.97	-163.70	-116.31	-9.77	0.00	-0.55	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	193.17	197.17	164.21	126.93	138.59	121.47	278.28	165.67	179.74	166.83	165.55	159.01	173.45	183.70	174.26	290.21	227.01	192.16	184.29	178.23	183.29	190.23	173.20	142.84
	13.52	14.23	13.54	11.89	12.75	12.38	13.03	10.14	6.18	13.17	14.47	12.07	15.55	13.45	12.55	-33.62	-6.50	2.03	3.47	11.73	12.46	11.92	9.64	7.42
	-53.72	-49.88	-24.67	-2.72	-0.34	-0.11	-152.30	-74.75	-127.13	-50.83	-39.93	-50.28	-35.53	-65.16	-65.45	-625.33	-307.86	-166.48	-140.88	-50.75	-56.89	-72.43	-78.03	-69.37
	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	122.97	129.56	122.61	109.29	122.30	106.06	109.92	78.45	45.07	100.09	107.98	94.01	119.02	102.25	93.60	-293.10	-72.15	23.06	38.98	112.69	110.56	102.80	83.27	64.44
	-2.95	-3.50	-3.39	-3.03	-3.21	-2.92	-3.03	-2.33	-1.35	-2.74	-3.16	-2.65	-3.35	-2.84	-2.66	8.40	2.21	-0.58	-0.96	-3.06	-3.39	-3.08	-2.26	-1.61
	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	119.00	141.08	137.94	118.69	117.00	110.00	119.36	130.00	123.45	109.31	118.54	124.00	115.59	100.15	76.00	80.00	84.00	86.00	83.92	125.84	99.00	83.54	79.00	69.73
	6.87	8.02	6.95	6.36	5.75	6.04	5.83	6.43	3.14	6.48	7.40	8.27	8.04	7.25	6.56	6.65	7.19	3.37	1.69	6.54	5.06	5.21	5.37	3.68
	12.83	0.00	-14.15	0.00	2.14	-0.22	-13.08	-20.16	-73.89	0.00	0.00	13.44	17.65	23.71	30.22	33.85	56.33	7.74	-42.28	-3.55	3.43	27.00	24.40	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	228.00	122.07	120.00	117.23	127.35	98.13	111.19	112.33	53.21	92.10	99.62	132.12	109.41	97.52	50.01	100.00	139.89	115.13	37.57	104.29	103.16	110.00	61.35	60.21
	-10.63	-10.56	-10.99	-12.15	-7.46	-5.82	-7.33	-10.63	-4.48	-10.73	-11.53	-14.05	-12.96	-11.03	-11.52	-10.29	-9.42	-2.82	-2.38	-11.46	-10.38	-8.95	-9.91	-5.85
	-113.68	-14.39	-14.15	-13.69	-21.42	-0.22	-18.08	-19.54	-11.26	0.00	0.00	-17.00	0.00	-3.46	38.14	-3.09	-16.16	-27.58	0.00	0.00	-16.17	-13.62	26.77	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	279.00	170.50	165.50	188.99	171.21	114.54	118.97	129.47	93.28	61.62	124.54	115.00	120.78	119.62	106.93	132.22	111.82	149.00	113.63	118.02	121.72	95.25	90.00	50.00
	5.37	5.73	5.49	4.86	5.16	5.59	5.45	5.55	-1.37	3.46	6.72	-2.13	-1.59	-1.45	-4.33	5.44	1.23	4.11	-0.98	-4.00	4.57	5.61	4.33	2.23
	-148.68	-46.53	-43.17	-68.44	-52.67	-5.22	-13.08	-20.51	-48.23	7.39	-14.34	-20.48	0.00	-15.99	-15.00	-19.58	-184.94	-54.52	-74.66	-6.27	-19.78	15.69	12.37	22.34
	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	118.62	123.84	116.02	104.15	118.07	102.61	106.14	78.43	55.93	95.58	103.89	90.51	113.99	101.59	90.83	-291.45	-73.52	23.31	38.69	107.98	106.18	98.46	80.55	61.85
	-7.30	-9.22	-9.98	-8.17	-7.43	-6.37	-6.81	-6.17	-3.21	-7.25	-7.25	-6.14	-8.38	-7.44	-6.94	10.04	0.84	-0.33	-1.25	-7.77	-7.77	-7.42	-4.97	-4.20
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.82	-12.71	0.00	0.00	0.00	0.00	-3.95	-1.50	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