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: 07/16/2008

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	122.80	77.97	68.17	39.93	8.13	70.52	43.80	94.05	102.04	114.40	124.92	145.63	147.06	148.23	159.09	171.90	282.48	242.91	214.49	162.88	132.23	134.28	132.79	123.14
	3.88	0.17	1.24	-0.08	0.37	1.37	1.60	3.82	6.11	6.64	7.37	8.30	7.83	7.56	7.94	8.85	14.26	13.89	12.87	10.00	8.13	7.91	7.29	6.81
	-47.66	-74.62	-43.31	-41.79	0.00	-45.16	-15.02	-27.34	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.27	-18.84	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

CENTRL 61754	75.77	11.71	28.40	3.02	7.59	29.10	28.68	65.82	95.94	108.07	118.10	138.83	141.14	143.30	154.52	165.48	254.18	232.29	203.23	153.79	124.79	127.57	126.54	116.58
	-0.92	-0.02	-0.20	0.00	-0.18	-0.12	-0.23	-0.20	0.01	0.31	0.55	1.50	1.91	2.64	3.37	3.70	4.80	3.27	1.60	0.92	0.68	1.21	1.04	0.24
	-5.45	-8.56	-4.99	-4.80	0.00	-5.23	-1.72	-3.14	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	114.57	60.23	58.84	29.93	8.42	60.67	41.32	90.37	106.32	119.51	130.26	151.72	154.20	155.63	167.60	204.91	658.33	252.79	221.95	168.44	137.05	139.49	137.62	127.86
	7.08	0.29	2.22	-0.15	0.66	2.21	2.71	6.79	10.39	11.75	12.71	14.39	14.98	14.97	16.45	17.43	27.08	23.77	20.33	15.57	12.95	13.13	12.12	11.52
	-36.24	-56.77	-33.00	-31.87	0.00	-34.46	-11.43	-20.70	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-25.69	-381.87	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

GENESE 61753	72.97	9.58	26.56	1.89	7.34	27.33	27.71	63.45	93.78	106.51	116.96	137.58	140.35	143.62	155.52	166.56	255.80	234.88	204.66	153.75	124.09	126.79	125.89	116.10
	-2.42	-0.09	-0.84	0.02	-0.43	-0.60	-0.78	-1.82	-2.15	-1.25	-0.58	0.25	1.12	2.96	4.37	4.78	6.42	5.86	3.04	0.87	-0.02	0.43	0.39	-0.23
	-4.15	-6.50	-3.77	-3.64	0.00	-3.94	-1.31	-2.38	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	69.45	3.09	23.02	-1.73	7.59	23.41	26.50	60.99	92.96	104.56	114.08	133.26	135.03	136.32	146.31	151.72	241.53	222.29	195.73	120.32	120.41	122.53	86.26	113.17
	-1.80	-0.08	-0.60	0.04	-0.17	-0.59	-0.68	-1.89	-2.97	-3.20	-3.47	-4.07	-4.20	-4.34	-4.84	-5.18	-7.84	-6.73	-5.90	-3.71	-3.69	-3.83	-2.54	-3.16
	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	-0.02	0.00	0.00	0.00	8.61	0.00	0.00	8.23	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	114.32	60.25	58.82	30.05	8.41	60.76	41.24	89.93	105.88	119.05	129.77	151.27	153.48	154.76	166.86	198.32	567.61	252.38	221.93	168.38	136.68	139.02	136.98	127.10
	6.80	0.28	2.14	-0.15	0.65	2.16	2.60	6.42	9.95	11.29	12.22	13.94	14.25	14.10	15.71	16.93	26.45	23.36	20.31	15.51	12.57	12.66	11.48	10.77
	-36.27	-56.80	-33.07	-31.98	0.00	-34.61	-11.46	-20.63	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-19.61	-291.78	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

LONGIL 61762	117.46	60.77	59.51	29.91	8.57	61.37	42.28	110.05	115.44	135.85	158.81	159.53	163.43	164.31	171.30	203.16	417.68	254.44	222.62	170.78	141.41	142.97	141.32	132.65
	9.12	0.40	2.87	-0.20	0.81	2.88	3.65	9.05	13.45	16.26	17.37	19.09	20.00	19.49	20.15	18.73	27.48	25.42	20.99	17.90	16.55	16.47	15.77	15.62
	-37.09	-57.19	-33.02	-31.89	0.00	-34.49	-11.44	-38.11	-6.05	-11.83	-23.89	-3.11	-4.20	-4.16	0.00	-22.65	-140.81	0.00	0.00	0.00	-0.76	-0.13	-0.05	-0.70
	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	78.09	11.67	29.00	3.02	7.86	29.41	29.51	67.84	98.89	111.52	121.67	142.55	144.62	146.11	156.87	169.19	279.90	236.97	208.39	157.93	128.28	131.09	129.75	119.53
	1.42	0.06	0.42	-0.04	0.10	0.42	0.63	1.77	2.96	3.76	4.12	5.22	5.39	5.45	5.72	5.98	8.95	7.95	6.77	5.06	4.18	4.73	4.26	3.20
	-5.42	-8.43	-4.95	-4.83	0.00	-4.99	-1.69	-3.19	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.43	-21.56	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

MILLWD 61759	114.53	60.54	58.95	30.12	8.40	60.79	41.30	90.31	106.06	119.27	130.00	151.49	154.05	155.52	167.54	204.44	650.36	253.09	222.26	168.63	137.05	139.45	137.46	127.58
	6.83	0.28	2.14	-0.15	0.64	2.14	2.62	6.60	10.13	11.51	12.45	14.16	14.83	14.85	16.39	17.52	27.20	24.07	20.64	15.76	12.95	13.09	11.96	11.24
	-36.45	-57.09	-33.19	-32.05	0.00	-34.66	-11.49	-20.83	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-25.14	-373.78	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

N.Y.C. 61761	129.86	115.77	90.31	50.85	24.46	76.14	86.52	118.16	129.72	146.38	138.65	174.84	161.37	161.05	176.42	203.99	620.30	253.57	222.72	174.86	148.10	150.81	185.38	145.80
	7.58	0.30	2.39	-0.16	0.70	2.35	2.90	7.25	11.10	12.54	13.54	15.33	16.01	15.92	17.43	18.36	28.29	24.60	20.78	15.99	13.43	13.78	12.75	12.41
	-51.03	-112.29	-64.31	-52.79	-16.00	-49.80	-56.43	-48.03	-22.69	-26.08	-7.56	-22.18	-6.14	-4.47	-7.84	-23.85	-342.64	0.04	-0.31	-6.00	-10.57	-10.67	-47.13	-17.05
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	69.05	3.08	22.85	-1.73	7.55	23.25	26.37	60.59	92.38	104.01	113.43	132.66	134.40	135.64	145.27	155.30	239.87	221.17	194.90	147.37	119.83	121.74	121.51	112.44
	-2.20	-0.10	-0.77	0.05	-0.22	-0.75	-0.82	-2.30	-3.55	-3.75	-4.12	-4.67	-4.83	-5.02	-5.88	-6.48	-9.51	-7.85	-6.72	-5.50	-4.27	-4.62	-3.99	-3.89
	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	118.97	70.68	64.28	35.85	8.21	66.50	42.67	92.03	102.99	115.49	126.11	146.66	148.15	149.03	159.68	165.53	415.03	243.12	214.84	133.78	132.72	134.49	95.00	124.11
	4.76	0.21	1.57	-0.10	0.44	1.70	1.94	4.53	7.06	7.73	8.56	9.33	8.92	8.37	8.53	8.63	15.27	14.10	13.22	9.75	8.62	8.13	6.20	7.78
	-42.96	-67.29	-39.09	-37.73	0.00	-40.81	-13.54	-24.61	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.02	-150.38	0.00	0.00	8.61	0.00	0.00	8.23	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	69.81	10.58	26.03	2.59	6.87	26.88	26.40	59.54	86.85	98.73	108.73	140.00	150.55	133.44	144.27	151.88	237.21	218.24	189.89	10.00	115.80	135.01	82.09	110.71
	-6.32	-0.24	-2.03	0.09	-0.89	-1.75	-2.32	-6.15	-9.09	-9.03	-8.82	-12.29	-6.87	-7.22	-6.88	-5.02	-12.17	-10.77	-11.73	-12.18	-8.30	-6.86	-6.71	-5.62
	-4.88	-7.64	-4.44	-4.29	0.00	-4.64	-1.54	-2.80	0.00	0.00	0.00	-14.63	-19.65	0.00	0.00	-0.02	0.00	0.00	0.00	110.47	0.00	-28.00	8.23	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	68.00	50.01	45.83	21.24	7.34	47.29	33.45	74.65	91.70	104.51	107.33	148.99	137.73	139.38	153.65	168.51	475.32	231.34	195.12	130.00	119.79	123.22	107.19	45.05
	0.07	1.32	-1.50	0.12	-0.42	-1.47	-1.95	-3.10	-4.23	-3.25	6.15	7.74	-1.50	-1.28	9.70	11.61	4.23	2.32	-6.50	5.97	-4.31	-3.14	4.35	4.12
	-21.92	-2.58	-23.71	-22.90	0.00	-24.76	-8.21	-14.86	0.00	0.00	10.70	-3.59	0.00	0.00	-5.35	-0.02	-221.70	0.00	0.00	8.61	0.00	0.00	-5.81	66.46
	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	71.63	11.54	26.91	3.09	6.99	27.77	26.94	61.24	89.15	101.30	111.36	131.60	134.15	137.58	148.73	159.04	244.14	223.85	194.58	146.85	118.80	121.95	122.23	113.26
	-5.10	-0.20	-1.68	0.07	-0.78	-1.42	-1.97	-4.79	-6.78	-6.46	-6.19	-5.74	-5.07	-3.08	-2.43	-2.74	-5.24	-5.17	-7.04	-6.03	-5.31	-4.41	-3.26	-3.07
	-5.48	-8.58	-4.98	-4.80	0.00	-5.19	-1.72	-3.15	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