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: 07/14/2008

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	113.12	144.63	144.09	142.58	145.88	147.57	152.14	129.19	123.94	128.69	131.43	139.92	134.14	131.68	130.57	131.33	136.04	140.99	131.70	106.33	116.86	116.54	104.13	66.52
	1.46	6.80	7.03	6.72	6.71	7.13	7.92	6.58	6.61	7.04	6.78	6.97	6.50	6.70	6.46	6.23	6.31	7.00	6.74	5.34	5.83	5.30	4.62	3.12
	-83.49	-6.81	0.00	0.00	0.00	0.00	-0.65	0.00	0.15	0.11	0.09	0.03	0.00	0.00	0.00	0.00	0.00	0.12	0.02	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	38.82	129.20	134.37	133.22	136.63	138.08	142.47	122.39	117.84	122.74	125.78	134.74	129.75	126.69	126.33	127.22	131.85	135.31	126.12	101.85	111.98	112.31	99.93	63.06
	-0.44	-2.70	-2.69	-2.64	-2.54	-2.37	-1.18	-0.23	0.52	1.11	1.15	1.79	2.11	1.71	2.22	2.12	2.12	1.33	1.15	0.87	0.95	1.06	0.43	-0.34
	-11.09	-0.88	0.00	0.00	0.00	0.00	-0.09	0.00	0.17	0.12	0.10	0.03	0.00	0.00	0.00	0.00	0.00	0.13	0.02	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	95.22	148.74	150.23	148.47	151.75	153.67	158.45	135.64	130.62	135.22	137.70	146.68	140.12	137.24	136.56	138.05	143.07	147.52	137.15	110.73	121.87	122.02	108.96	69.36
	2.63	12.47	13.17	12.61	12.59	13.22	14.38	13.02	13.32	13.60	13.08	13.74	12.48	12.27	12.45	12.95	13.35	13.57	12.19	9.75	10.83	10.77	9.46	5.95
	-64.41	-5.25	0.00	0.00	0.00	0.00	-0.50	0.00	0.19	0.14	0.12	0.03	0.00	0.00	0.00	0.00	0.01	0.16	0.02	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	33.56	120.81	126.28	125.21	128.74	130.51	135.10	115.97	112.12	117.28	121.38	129.64	126.01	122.70	121.83	122.52	126.82	130.70	120.79	97.65	107.12	107.56	96.36	60.75
	-1.56	-9.86	-10.78	-10.64	-10.42	-9.93	-8.53	-6.65	-6.02	-4.96	-3.76	-3.44	-1.63	-2.28	-2.27	-2.58	-2.93	-3.93	-4.25	-3.33	-3.91	-3.69	-3.15	-2.66
	-6.95	0.34	0.00	0.00	0.00	0.00	-0.06	0.00	-0.64	-0.48	-0.41	-0.11	0.00	0.00	0.00	0.00	-0.02	-0.53	-0.06	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	27.67	129.00	135.00	133.96	77.42	63.17	56.00	52.00	95.98	118.24	143.84	129.39	140.64	118.02	112.17	113.49	134.13	108.63	104.68	98.36	91.37	112.83	96.79	61.85
	-0.50	-2.02	-2.06	-1.89	-1.39	-1.81	-3.07	-2.85	-2.68	-3.52	-4.14	-3.58	-4.03	-3.91	-3.58	-3.83	-3.93	-3.65	-3.52	-3.37	-3.24	-3.16	-2.71	-1.55
	0.00	0.00	0.00	0.00	19.97	49.63	80.47	54.92	11.09	0.00	-5.02	0.00	-5.72	22.71	18.27	14.54	-2.36	13.44	17.68	16.60	21.02	-2.91	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	94.55	147.87	149.39	147.72	151.00	152.85	157.64	135.03	130.07	134.73	137.26	146.38	139.67	136.79	136.33	137.89	142.98	147.40	136.99	110.53	121.62	121.71	108.51	69.02
	2.49	11.65	12.33	11.86	11.83	12.40	13.57	12.41	12.77	13.11	12.64	13.44	12.03	11.82	12.22	12.79	13.25	13.45	12.03	9.54	10.59	10.46	9.01	5.61
	-63.89	-5.21	0.00	0.00	0.00	0.00	-0.50	0.00	0.19	0.14	0.12	0.03	0.00	0.00	0.00	0.00	0.01	0.16	0.02	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	124.08	158.53	158.51	153.83	156.56	158.42	163.18	151.90	134.79	139.42	142.67	150.35	146.59	145.81	139.75	140.75	145.60	150.49	140.66	133.57	143.78	138.02	134.73	77.11
	3.62	17.03	17.86	17.64	17.39	17.98	18.96	17.24	17.29	16.97	16.96	17.17	16.30	15.99	15.64	15.65	15.87	16.54	15.70	13.13	14.54	14.21	12.90	8.05
	-92.29	-10.48	-3.59	-0.33	0.00	0.00	-0.65	-12.04	-0.01	-0.69	-0.97	-0.21	-2.65	-4.84	0.00	0.00	0.01	0.16	0.02	-19.46	-18.21	-12.56	-22.33	-5.65
	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	39.66	134.75	140.14	138.96	142.41	143.96	148.02	127.03	122.14	126.86	130.11	139.14	133.49	130.36	129.57	130.49	135.11	139.03	129.72	104.80	115.21	115.50	102.83	65.16
	0.65	2.86	3.08	3.10	3.25	3.51	4.37	4.41	4.78	5.19	5.46	6.19	5.85	5.39	5.46	5.39	5.39	5.03	4.75	3.82	4.17	4.25	3.33	1.75
	-10.84	-0.87	0.00	0.00	0.00	0.00	-0.08	0.00	0.13	0.09	0.08	0.02	0.00	0.00	0.00	0.00	0.00	0.10	0.01	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	95.51	148.41	149.85	148.15	151.42	153.30	158.13	135.34	130.37	134.97	137.45	146.52	139.95	137.07	136.40	137.92	142.97	147.43	137.04	110.62	121.75	121.84	108.73	69.20
	2.58	12.12	12.79	12.29	12.25	12.86	14.06	12.73	13.08	13.35	12.83	13.57	12.31	12.10	12.29	12.82	13.24	13.48	12.08	9.64	10.72	10.60	9.23	5.79
	-64.76	-5.28	0.00	0.00	0.00	0.00	-0.51	0.00	0.19	0.14	0.12	0.03	0.00	0.00	0.00	0.00	0.01	0.16	0.02	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	163.04	170.20	151.05	149.27	152.51	154.54	159.37	145.15	196.68	190.65	188.64	197.41	194.75	193.09	194.27	197.29	208.33	212.54	203.27	193.07	198.90	194.87	213.68	147.90
	2.79	13.25	13.99	13.42	13.34	14.10	15.29	13.86	14.22	14.55	13.88	14.49	13.12	12.98	13.17	13.75	14.18	14.31	12.86	10.32	11.50	11.49	10.17	6.44
	-132.08	-25.94	0.00	0.00	0.00	0.00	-0.50	-8.67	-64.97	-54.34	-50.03	-49.94	-53.98	-55.13	-56.99	-58.44	-64.41	-64.13	-65.42	-81.77	-76.36	-72.13	-104.02	-78.06
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	27.51	128.29	134.28	133.30	136.75	137.86	140.27	119.95	114.14	117.89	121.22	129.18	124.08	121.13	119.87	120.84	125.30	129.48	120.75	97.53	107.18	107.51	96.36	61.48
	-0.66	-2.73	-2.78	-2.56	-2.41	-2.58	-3.30	-2.67	-3.35	-3.88	-3.52	-3.79	-3.56	-3.85	-4.24	-4.26	-4.43	-4.62	-4.23	-3.45	-3.85	-3.74	-3.15	-1.92
	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	105.65	145.70	146.05	144.55	85.00	71.99	77.20	100.00	105.59	129.92	157.65	141.15	164.00	132.86	131.61	132.36	155.00	134.82	132.20	106.71	117.37	121.22	99.12	67.02
	1.78	8.51	8.99	8.69	6.20	7.02	9.38	7.35	7.36	8.28	10.08	8.20	9.18	7.88	7.51	7.26	7.77	7.55	7.24	5.72	6.34	5.23	5.68	3.62
	-75.71	-6.18	0.00	0.00	19.97	49.63	71.73	17.13	11.51	0.12	-4.61	0.03	-15.87	0.00	0.00	0.00	-11.52	-1.56	0.02	0.00	0.00	-2.91	16.27	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	34.26	112.32	117.15	75.29	67.83	51.47	41.89	65.50	69.09	100.70	110.00	130.00	137.34	111.44	110.36	111.07	129.03	112.35	108.77	89.13	97.53	115.00	89.11	56.49
	-3.20	-18.53	-19.91	-10.98	-13.07	-13.50	-17.18	-14.91	-17.22	-16.05	-20.99	-19.02	-16.66	-13.53	-13.75	-14.03	-16.81	-14.93	-15.53	-11.86	-13.50	-10.24	-10.39	-6.91
	-9.29	0.17	0.00	-3.48	17.87	49.63	80.47	29.37	23.43	5.02	11.98	-0.37	-15.04	0.00	0.00	0.00	-10.13	-1.56	0.68	0.00	0.00	-12.15	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	81.11	55.00	70.00	66.00	61.99	68.95	60.29	85.00	100.00	116.94	153.34	149.86	158.47	120.82	120.38	122.84	160.00	133.37	119.90	95.95	105.59	121.00	104.95	66.00
	2.78	0.51	2.24	2.66	3.31	3.98	5.85	4.83	4.02	-3.78	8.90	7.65	3.81	-4.16	-3.73	-2.26	7.93	6.10	-4.94	-5.04	-5.44	4.98	5.04	2.20
	3.78	-37.84	7.53	19.45	40.09	49.63	85.11	29.61	13.77	1.05	-1.48	6.44	-15.71	0.00	0.00	0.00	-16.36	-1.56	0.14	0.00	0.00	-2.94	9.81	42.38
	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	36.41	114.89	119.95	119.08	122.54	123.88	128.48	109.81	99.30	105.90	110.08	121.06	119.41	115.32	114.74	115.34	119.16	116.81	112.66	92.04	100.88	101.51	91.42	57.68
	-2.83	-16.18	-17.11	-16.78	-16.62	-16.56	-15.18	-12.81	-11.90	-11.21	-10.73	-10.84	-8.23	-9.65	-9.37	-9.77	-10.37	-12.16	-11.69	-8.95	-10.16	-9.74	-8.09	-5.73
	-11.07	-0.06	0.00	0.00	0.00	0.00	-0.09	0.00	6.28	4.65	3.93	1.07	0.00	0.00	0.00	0.00	0.20	5.13	0.63	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