P-4A

Page Ref: P-4A

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: 07/10/2008

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	134.62	84.30	102.33	98.13	95.76	140.44	128.86	129.06	107.81	120.61	120.40	108.47	96.56	119.72	107.73	129.33	121.64	135.49	142.35	116.25	110.65	119.66	106.98	50.51
	-0.35	-0.31	0.31	3.16	2.85	0.18	2.34	5.77	5.54	6.34	6.17	5.92	5.33	6.76	5.83	6.98	6.47	6.56	3.90	6.48	3.93	3.18	3.65	1.95
	-140.88	-89.96	-96.40	-34.20	-39.68	-137.29	-87.34	-29.32	-4.41	0.00	-7.81	-0.83	-1.62	-0.71	-1.18	-0.07	-0.52	0.00	-74.60	0.00	-41.67	-64.01	-40.73	-13.17
	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	10.50	5.22	16.82	62.92	56.16	19.00	49.20	97.01	97.53	114.25	107.04	101.59	89.85	112.46	100.72	122.15	114.69	129.12	71.99	108.70	69.31	59.33	66.01	36.03
	0.03	0.07	-0.09	-1.85	-1.69	-0.04	-0.15	-0.38	-0.85	-0.01	-0.30	-0.12	0.25	0.20	0.00	-0.13	0.04	0.19	-0.52	-1.08	-0.57	-0.57	-1.31	-0.88
	-16.38	-10.51	-11.29	-4.00	-4.63	-16.06	-10.18	-3.42	-0.52	0.00	-0.92	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-8.66	0.00	-4.84	-7.43	-4.72	-1.53
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

DUNWOD 61760	100.31	62.37	79.33	91.74	87.92	107.65	109.58	126.29	111.73	126.54	124.29	132.09	136.36	141.00	138.77	137.42	138.87	142.74	132.00	121.57	104.48	106.63	99.89	48.75
	-0.59	-0.52	0.50	4.98	4.51	0.28	4.05	10.07	10.53	12.28	11.96	11.58	10.32	12.79	11.29	13.50	12.71	13.82	6.96	11.79	7.14	5.65	6.43	3.38
	-106.81	-68.24	-73.21	-25.99	-30.18	-104.38	-66.36	-22.25	-3.34	0.00	-5.92	-18.80	-36.43	-15.97	-26.77	-1.64	-11.52	0.00	-61.20	0.00	-32.29	-48.52	-30.86	-9.98
	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	6.52	2.70	13.74	59.70	52.91	14.79	45.55	93.19	94.37	111.52	103.73	98.51	87.33	109.26	98.17	118.75	111.87	126.62	68.12	105.37	66.15	56.03	62.87	34.67
	0.15	0.21	-0.29	-4.05	-3.78	-0.19	-1.25	-3.34	-3.87	-2.75	-3.35	-3.20	-2.28	-2.99	-2.55	-3.53	-2.78	-2.31	-2.21	-4.41	-2.53	-2.02	-3.29	-1.87
	-12.28	-7.84	-8.41	-2.99	-3.47	-12.00	-7.63	-2.56	-0.38	0.00	-0.67	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-6.49	0.00	-3.63	-5.58	-3.55	-1.15
	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	-5.76	-5.24	5.51	52.55	52.60	2.93	0.00	91.56	83.69	111.38	103.58	65.55	86.90	108.85	97.86	119.00	111.53	125.74	62.27	107.25	63.49	51.24	61.43	34.84
	0.15	0.12	-0.10	-0.54	-0.62	-0.05	-1.99	-2.41	-1.96	-2.88	-2.83	-1.71	-2.71	-3.40	-2.85	-3.28	-3.12	-3.18	-1.58	-2.52	-1.56	-1.23	-1.16	-0.55
	0.00	0.00	0.00	-5.36	0.00	0.00	76.84	0.00	-5.41	0.00	0.00	2.48	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
	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	99.50	61.95	78.82	91.10	87.33	107.08	108.92	125.41	110.95	125.69	123.41	126.69	126.86	136.40	131.70	136.27	135.49	142.11	130.06	121.01	103.66	105.90	99.17	48.39
	-0.54	-0.47	0.45	4.50	4.08	0.26	3.70	9.29	9.76	11.42	11.12	10.73	9.62	12.03	10.64	12.75	12.04	13.18	6.65	11.23	6.76	5.32	5.97	3.10
	-105.96	-67.78	-72.76	-25.83	-30.02	-103.84	-66.05	-22.15	-3.33	0.00	-5.87	-14.24	-27.63	-12.12	-20.34	-1.25	-8.79	0.00	-59.58	0.00	-31.85	-48.11	-30.61	-9.90
	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	104.78	63.84	79.57	93.61	89.54	107.82	110.78	129.07	132.26	136.28	138.74	138.69	141.12	144.52	141.21	140.23	141.23	144.96	133.82	151.97	187.30	145.66	116.30	56.78
	-0.76	-0.71	0.68	6.83	6.11	0.37	5.19	12.83	14.22	16.52	16.04	15.56	13.37	16.30	13.72	16.31	15.06	16.03	8.68	14.94	9.07	7.18	8.29	4.21
	-111.45	-69.90	-73.27	-26.01	-30.21	-104.47	-66.42	-22.27	-20.18	-5.49	-16.29	-21.41	-38.15	-15.97	-26.78	-1.64	-11.52	0.00	-61.30	-27.26	-113.18	-86.01	-45.41	-17.19
	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	9.06	4.20	16.08	65.24	58.24	17.70	48.97	99.42	101.09	118.13	110.89	106.19	94.59	116.80	105.50	126.30	119.03	133.23	74.32	113.13	71.79	61.28	68.77	37.65
	-0.13	-0.11	0.10	0.82	0.74	0.06	0.94	2.60	2.80	3.86	3.64	3.50	3.04	3.68	3.29	3.92	3.73	4.30	1.95	3.36	2.02	1.65	1.61	0.78
	-15.10	-9.66	-10.36	-3.65	-4.28	-14.66	-8.86	-2.86	-0.44	0.00	-0.84	-0.98	-1.95	-0.88	-1.49	-0.09	-0.66	0.00	-8.53	0.00	-4.72	-7.16	-4.56	-1.48
	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	100.96	62.79	79.74	91.71	87.94	108.26	109.87	126.22	111.55	126.33	124.12	131.50	135.45	140.54	138.13	137.28	138.54	142.66	132.21	121.51	104.58	106.84	99.93	48.71
	-0.57	-0.50	0.48	4.80	4.35	0.28	3.94	9.86	10.33	12.06	11.75	11.39	10.19	12.67	11.21	13.39	12.62	13.74	6.93	11.74	7.06	5.57	6.29	3.28
	-107.44	-68.65	-73.64	-26.14	-30.36	-105.01	-66.76	-22.39	-3.36	0.00	-5.95	-18.39	-35.65	-15.63	-26.20	-1.60	-11.27	0.00	-61.44	0.00	-32.47	-48.81	-31.05	-10.04
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

N.Y.C. 61761	114.52	89.65	96.29	95.63	94.36	110.81	123.33	170.13	168.20	174.94	171.40	176.32	144.64	148.92	146.92	146.47	153.35	189.27	182.10	175.33	160.82	163.69	157.47	113.18
	-0.64	-0.57	0.55	5.49	4.98	0.31	4.40	10.91	11.41	13.26	12.88	12.53	11.11	13.74	12.15	14.58	13.65	14.77	7.35	12.43	7.55	6.03	6.94	3.65
	-121.08	-95.58	-90.12	-29.37	-36.16	-107.52	-79.76	-65.24	-58.93	-47.42	-52.11	-62.07	-43.93	-22.94	-34.06	-9.61	-25.05	-45.57	-110.90	-53.13	-88.23	-105.19	-87.93	-74.14
	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	-5.65	-5.14	5.42	59.39	51.96	2.89	37.64	90.30	94.57	110.35	102.55	97.77	85.55	107.02	96.35	117.35	109.99	124.77	61.80	106.38	62.98	50.88	60.87	34.68
	0.27	0.22	-0.20	-1.38	-1.26	-0.09	-1.54	-3.67	-3.29	-3.92	-3.86	-3.94	-4.06	-5.23	-4.36	-4.93	-4.66	-4.15	-2.04	-3.39	-2.07	-1.59	-1.73	-0.71
	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	120.67	75.37	92.98	92.20	92.51	127.24	101.00	105.00	117.51	121.55	120.60	147.45	110.53	126.79	118.38	131.34	126.97	136.72	137.35	117.36	107.41	113.81	103.58	49.57
	-0.39	-0.36	0.37	3.03	3.43	0.22	5.85	5.44	5.55	7.29	7.16	4.67	6.42	8.19	7.01	8.41	7.74	7.80	9.12	7.58	4.54	3.66	4.29	2.31
	-126.98	-81.08	-87.00	-41.44	-35.86	-124.04	-16.31	-22.08	-31.73	0.00	-7.03	-73.04	-14.50	-6.36	-10.66	-0.65	-4.58	0.00	-2.95	0.00	-37.82	-57.68	-36.69	-11.87
	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	8.95	4.35	14.94	51.20	50.29	16.71	53.42	87.09	77.20	110.00	25.00	66.13	79.44	99.19	89.22	107.87	102.22	116.35	63.98	96.21	61.62	52.92	58.70	32.53
	0.41	0.47	-0.58	-6.00	-7.02	-0.39	-6.73	-9.89	-11.44	-12.38	-13.74	-9.72	-10.16	-13.06	-11.50	-14.41	-12.43	-12.57	-7.50	-13.57	-7.69	-6.11	-8.08	-4.21
	-14.45	-9.23	-9.91	-9.47	-4.08	-14.13	18.69	-3.01	-8.41	-16.56	60.69	-6.12	0.00	0.00	0.00	0.00	0.00	0.00	-7.63	0.00	-4.27	-6.57	-4.18	-1.35
	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	71.14	54.00	55.00	67.00	52.00	64.00	67.34	105.70	105.35	109.58	104.05	115.87	108.07	116.98	111.99	116.67	116.13	123.61	103.19	102.58	125.50	105.58	80.45	38.93
	0.41	0.40	0.06	0.46	0.55	0.64	3.74	-4.24	3.79	-4.68	-6.61	2.98	-4.09	-5.15	-5.30	-6.62	-5.65	-5.31	-4.10	-7.19	2.52	2.24	-4.29	-3.62
	-76.65	-36.66	-52.66	-18.81	-12.51	-32.45	15.23	-15.97	-21.32	0.00	-4.25	-43.16	-22.56	-9.88	-16.58	-1.02	-7.13	0.00	-43.44	0.00	-65.51	-38.03	-22.15	-7.16
	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	10.78	5.50	16.31	58.01	51.54	18.60	46.62	89.82	89.11	105.48	97.56	92.34	82.27	102.88	92.31	111.64	105.65	120.17	66.68	99.16	63.88	55.07	60.61	33.22
	0.35	0.42	-0.50	-6.73	-6.29	-0.32	-2.69	-7.55	-9.26	-8.79	-9.76	-9.37	-7.34	-9.37	-8.40	-10.64	-9.01	-8.75	-5.80	-10.62	-6.01	-4.83	-6.72	-3.70
	-16.35	-10.44	-11.19	-3.97	-4.61	-15.94	-10.14	-3.40	-0.51	0.00	-0.91	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-8.64	0.00	-4.83	-7.43	-4.73	-1.53
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N