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: 07/18/2008

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	96.38	12.36	51.09	102.59	86.24	70.94	42.96	44.37	68.26	107.31	138.42	142.21	147.49	136.18	113.32	73.54	111.18	110.37	117.79	99.80	107.51	96.19	94.23	112.12
	5.26	0.70	2.60	5.02	4.45	3.96	2.67	2.85	4.46	7.28	9.08	9.11	10.18	9.41	7.69	4.80	7.46	7.35	7.55	6.85	7.34	6.28	6.13	6.91
	0.00	0.00	0.00	0.00	0.00	-4.08	0.00	0.00	0.00	0.00	0.00	-0.09	-0.18	-1.18	-2.65	-5.12	-3.08	-3.51	-2.69	-2.47	-2.97	-2.45	-1.52	-1.05
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

CENTRL 61754	90.98	11.57	48.48	96.26	80.77	62.47	40.33	41.85	64.13	100.65	130.83	135.14	139.03	127.98	105.31	64.63	102.12	100.98	108.98	90.72	97.74	87.66	86.25	103.77
	-0.13	-0.09	-0.01	-1.30	-1.03	-0.90	0.03	0.32	0.34	0.62	1.48	2.13	1.91	2.39	2.33	1.01	1.48	1.47	1.42	0.24	0.53	0.19	-0.33	-0.45
	0.00	0.00	0.00	0.00	0.00	-0.47	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	-0.01	0.00	0.00	0.00	-0.05
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

DUNWOD 61760	99.95	12.77	52.56	105.55	88.98	71.97	44.51	46.04	70.73	111.38	143.88	150.40	157.27	164.68	169.91	177.42	176.58	183.94	175.41	150.20	170.05	147.46	126.87	127.39
	8.84	1.11	4.08	7.98	7.18	5.97	4.21	4.52	6.93	11.36	14.54	15.55	16.48	14.99	12.16	7.57	11.91	11.82	12.59	10.68	11.82	10.29	9.85	11.18
	0.00	0.00	0.00	0.00	0.00	-3.10	0.00	0.00	0.00	0.00	0.00	-1.83	-3.67	-24.10	-54.77	-106.22	-64.02	-72.61	-55.25	-49.04	-61.03	-49.70	-30.43	-12.04
	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	90.83	11.53	48.17	95.11	79.90	61.31	39.81	41.43	63.99	100.80	131.85	136.15	139.66	128.57	105.75	64.59	101.47	99.77	107.67	89.35	96.01	86.55	85.14	102.02
	-0.27	-0.13	-0.31	-2.46	-1.90	-1.96	-0.49	-0.10	0.19	0.78	2.51	3.14	2.54	2.98	2.77	0.97	0.83	0.27	0.11	-1.13	-1.19	-0.92	-1.45	-2.19
	0.00	0.00	0.00	0.00	0.00	-0.36	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	-0.01	0.00	0.00	0.00	-0.04
	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	43.68	31.00	47.32	95.83	80.12	61.58	39.16	40.19	56.27	113.37	125.31	123.02	132.27	133.21	99.16	61.29	104.92	96.04	104.07	87.60	82.35	91.83	68.10	42.63
	-2.36	-0.80	-1.17	-1.74	-1.68	-1.33	-1.14	-1.33	-2.02	-3.05	-4.03	-4.21	-4.85	-4.30	-3.82	-2.33	-4.05	-3.47	-3.49	-2.88	-2.53	-3.08	-2.19	-2.43
	61.03	4.07	0.00	0.00	0.00	0.00	0.00	0.00	4.79	-24.96	0.00	-0.58	0.00	-12.02	0.00	0.00	-1.17	0.00	0.00	0.00	-3.24	-0.17	5.37	39.29
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

HUD VL 61758	99.40	12.70	52.35	105.05	88.46	71.51	44.21	45.74	70.26	110.60	143.10	149.19	155.73	158.37	156.49	151.95	161.05	166.47	162.09	138.39	155.44	135.54	119.40	124.15
	8.29	1.04	3.86	7.48	6.66	5.52	3.91	4.22	6.46	10.58	13.76	14.79	15.82	14.42	11.78	7.32	11.55	11.54	12.31	10.39	11.44	9.94	9.47	10.67
	0.00	0.00	0.00	0.00	0.00	-3.08	0.00	0.00	0.00	0.00	0.00	-1.39	-2.79	-18.36	-41.73	-81.01	-48.85	-55.42	-42.22	-37.52	-46.79	-38.13	-23.35	-9.32
	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	112.14	19.66	56.66	108.45	91.32	73.95	45.64	46.99	72.24	117.03	158.04	158.57	161.48	169.43	172.36	179.18	179.60	186.61	177.66	152.48	172.33	150.11	157.73	140.85
	11.71	1.47	5.75	10.88	9.52	7.94	5.34	5.46	8.44	14.30	18.67	19.92	20.06	18.06	14.60	9.30	14.91	14.47	14.84	12.95	14.08	12.92	12.75	14.60
	-9.33	-6.53	-2.41	0.00	0.00	-3.10	0.00	0.00	0.00	-2.71	-10.02	-5.64	-4.30	-25.78	-54.78	-106.25	-64.04	-72.64	-55.27	-49.05	-61.05	-49.71	-58.39	-22.08
	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	93.39	11.93	49.65	99.60	83.56	64.77	41.41	43.02	66.29	104.30	135.39	139.51	143.32	132.73	111.01	72.97	109.08	108.54	115.75	97.35	105.43	94.38	91.55	108.10
	2.28	0.27	1.16	2.03	1.77	1.42	1.11	1.50	2.49	4.28	6.04	6.39	5.98	5.69	4.73	2.73	4.33	4.31	4.53	3.50	3.97	3.60	3.01	3.14
	0.00	0.00	0.00	0.00	0.00	-0.44	0.00	0.00	0.00	0.00	0.00	-0.11	-0.21	-1.45	-3.31	-6.62	-4.10	-4.73	-3.67	-3.37	-4.26	-3.31	-1.96	-0.80
	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	99.73	12.74	52.45	105.28	88.69	71.76	44.37	45.91	70.56	111.13	143.66	150.20	157.11	164.07	168.71	175.12	175.20	182.44	174.29	149.16	168.71	146.33	126.16	127.00
	8.62	1.08	3.96	7.72	6.89	5.75	4.07	4.39	6.76	11.10	14.31	15.40	16.39	14.90	12.16	7.57	11.91	11.87	12.65	10.68	11.77	10.22	9.79	11.04
	0.00	0.00	0.00	0.00	0.00	-3.11	0.00	0.00	0.00	0.00	0.00	-1.79	-3.59	-23.58	-53.58	-103.93	-62.65	-71.06	-54.07	-48.00	-59.73	-48.64	-29.79	-11.80
	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	149.09	83.72	62.62	111.40	96.20	72.45	50.75	84.26	129.12	169.09	157.54	168.95	184.58	173.52	178.10	184.48	184.03	194.13	194.25	200.39	226.78	215.97	207.03	196.96
	9.39	1.16	4.27	8.62	7.70	6.45	4.57	4.94	7.66	12.49	15.92	16.94	17.80	15.99	12.96	8.01	12.60	12.37	13.23	11.24	12.55	10.84	10.36	11.87
	-48.59	-70.90	-9.86	-5.22	-6.70	-3.10	-5.88	-37.79	-57.66	-56.58	-12.28	-19.00	-29.65	-31.94	-62.16	-112.85	-70.78	-82.25	-73.47	-98.67	-117.03	-117.65	-110.07	-80.93
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	87.97	11.24	46.90	95.43	80.10	61.66	38.79	39.69	61.19	96.21	124.26	127.38	131.11	119.80	98.07	60.58	96.12	95.07	103.24	86.91	92.92	84.07	83.27	99.99
	-3.14	-0.42	-1.59	-2.14	-1.70	-1.25	-1.51	-1.84	-2.61	-3.81	-5.09	-5.63	-6.02	-5.80	-4.91	-3.05	-4.53	-4.44	-4.31	-3.58	-4.28	-3.40	-3.31	-4.17
	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	52.80	80.50	51.45	103.43	87.05	71.26	43.41	44.67	68.00	123.67	138.75	135.50	149.19	147.55	135.00	135.00	140.00	135.76	137.35	127.44	112.94	115.00	95.22	77.00
	6.76	2.40	2.97	5.85	5.26	4.67	3.11	3.14	5.08	7.25	9.40	8.27	10.63	9.51	8.81	7.69	7.65	7.69	8.05	7.34	6.59	6.82	5.45	6.39
	61.03	-42.23	0.00	0.00	0.00	-3.68	0.00	0.00	0.16	-24.96	0.00	-0.58	-1.44	-12.57	-16.11	-26.11	-24.55	-28.57	-21.74	-32.72	-24.70	-13.43	-14.11	13.74
	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	39.95	34.24	15.00	90.82	76.36	58.03	37.78	38.98	51.92	111.11	140.00	138.35	127.63	131.04	100.00	58.89	144.25	90.86	98.78	81.97	76.92	89.06	64.70	39.45
	-6.09	-2.96	-1.07	-6.75	-5.44	-5.30	-2.52	-2.55	-6.44	-5.30	-1.66	-2.44	-9.50	-6.47	-8.04	-4.73	-3.94	-8.65	-8.78	-8.51	-7.96	-5.85	-5.59	-7.69
	61.03	-1.33	1.45	0.00	0.00	-0.43	0.00	0.00	4.73	-24.96	-20.73	-14.13	0.00	-12.02	2.04	0.00	-40.40	0.00	0.00	-0.01	-3.24	-0.17	5.37	37.21
	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	49.42	60.60	45.82	91.69	77.46	60.86	38.34	40.01	64.68	121.68	126.38	135.95	137.75	145.00	137.19	128.59	152.99	174.21	142.23	118.61	123.48	122.67	64.15	64.27
	3.38	0.79	-2.67	-5.88	-4.34	-4.27	-1.96	-1.52	3.59	5.27	-2.97	8.71	-1.65	7.50	0.30	-0.82	7.22	7.67	0.46	-2.25	4.82	6.87	3.43	3.29
	61.03	-23.94	0.00	0.00	0.00	-2.23	0.00	0.00	1.99	-24.96	0.00	-0.58	-2.27	-12.02	-33.91	-65.78	-37.98	-64.31	-34.22	-30.37	-37.02	-21.05	14.94	23.37
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

WEST 61752	87.87	11.09	46.84	92.11	77.48	58.95	38.35	39.73	61.02	96.04	125.59	129.38	132.07	121.68	100.25	60.99	95.82	94.54	102.52	84.59	91.33	82.46	81.37	97.62
	-3.24	-0.57	-1.65	-5.45	-4.31	-4.43	-1.95	-1.79	-2.77	-3.98	-3.76	-3.64	-5.05	-3.91	-2.73	-2.63	-4.82	-4.97	-5.03	-5.90	-5.88	-5.01	-5.22	-6.60
	0.00	0.00	0.00	0.00	0.00	-0.48	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	-0.01	0.00	0.00	0.00	-0.06
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N