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: 07/04/2008

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	178.63	181.16	322.58	164.38	223.25	269.21	199.99	183.80	164.33	151.19	137.10	127.27	120.48	115.11	115.92	114.26	110.37	109.83	96.61	99.75	85.78	73.67	83.13	76.48
	7.36	9.26	-10.88	7.72	10.97	13.38	9.49	7.67	7.93	7.65	7.00	6.03	5.81	5.33	5.24	5.51	5.16	4.87	4.52	5.05	4.68	3.72	4.00	3.89
	-39.22	0.00	-535.22	0.00	0.00	15.21	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	0.09	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	133.15	166.85	-131.40	152.38	207.42	264.93	185.81	171.45	151.99	139.85	127.09	118.61	111.96	108.01	108.73	107.16	103.55	102.50	90.02	92.47	79.15	68.24	76.33	70.26
	-3.45	-5.05	8.10	-4.28	-4.85	-6.11	-4.69	-4.69	-4.42	-3.69	-3.01	-2.63	-2.71	-1.77	-1.96	-1.59	-1.66	-2.46	-2.06	-2.23	-1.94	-1.71	-2.76	-2.32
	-4.54	0.00	-62.27	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	0.13	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	173.13	185.94	187.37	169.44	228.32	214.66	205.66	188.81	168.69	155.26	141.04	132.05	125.73	120.55	121.38	119.98	115.95	114.49	100.43	103.04	88.68	76.32	85.44	78.27
	11.34	14.04	-17.08	12.78	16.04	20.31	15.16	12.68	12.28	11.72	10.93	10.81	11.05	10.77	10.69	11.23	10.74	9.54	8.35	8.34	7.58	6.38	6.33	5.68
	-29.74	0.00	-406.21	0.00	0.00	76.69	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	0.11	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	126.29	159.34	-139.84	146.60	198.34	253.22	177.38	163.13	144.55	133.61	122.14	114.02	107.39	103.70	104.36	102.62	99.12	98.11	85.90	87.86	75.17	64.82	65.86	67.16
	-9.17	-12.56	15.41	-10.07	-13.93	-17.83	-13.11	-13.00	-11.86	-9.93	-7.96	-7.22	-7.29	-6.08	-6.33	-6.13	-6.10	-6.84	-6.19	-6.85	-5.92	-5.12	-6.19	-5.43
	-3.41	0.00	-46.52	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	7.17	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	130.62	170.30	53.95	12.65	49.12	86.00	79.69	122.35	136.00	5.83	-35.33	86.00	86.00	84.71	75.79	106.79	68.52	70.52	91.09	93.76	80.09	69.24	78.99	72.23
	-1.43	-1.60	-0.90	-0.97	-0.97	-0.84	-0.82	-1.06	-1.44	-0.97	-0.43	-1.23	-1.26	-1.45	-1.27	-1.96	-1.47	-0.73	-0.99	-0.94	-1.01	-0.71	-0.23	-0.35
	0.00	0.00	108.73	83.31	88.74	82.01	84.27	9.49	23.15	114.75	74.25	25.14	2.91	4.65	13.50	0.00	11.82	9.01	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	171.89	185.05	185.24	168.58	227.76	476.87	205.06	188.35	168.22	154.72	140.45	131.40	124.94	119.77	120.63	119.17	115.21	113.81	99.81	102.45	88.07	75.79	84.83	77.68
	10.34	13.15	-15.76	11.91	15.49	19.81	14.56	12.22	11.81	11.18	10.35	10.16	10.26	9.99	9.94	10.42	9.99	8.85	7.73	7.75	6.97	5.85	5.73	5.10
	-29.50	0.00	-402.77	0.00	0.00	-186.02	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	0.11	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	179.70	186.84	184.42	171.13	225.32	214.85	205.25	189.47	170.66	157.93	145.40	144.85	146.59	147.04	147.30	146.52	146.08	144.64	143.69	137.80	138.24	141.78	131.75	111.07
	14.25	14.94	-20.35	14.46	16.03	19.63	15.67	13.34	14.26	14.39	14.56	14.86	14.93	14.36	14.28	14.75	14.13	12.97	11.40	11.47	10.07	8.42	8.64	7.73
	-33.40	0.00	-406.54	0.00	2.98	75.81	0.92	0.00	0.00	0.00	-0.73	-8.75	-16.99	-22.89	-22.33	-23.02	-26.74	-26.71	-40.20	-31.62	-47.07	-63.41	-43.90	-30.75
	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	138.54	174.30	-138.45	158.67	215.14	274.88	193.20	179.10	159.49	146.76	133.28	124.38	117.56	112.61	113.28	111.33	107.67	107.15	94.06	96.71	82.81	71.36	80.35	73.63
	1.94	2.39	-2.16	2.00	2.87	3.84	2.70	2.96	3.08	3.23	3.18	3.14	2.89	2.83	2.59	2.58	2.45	2.19	1.98	2.01	1.72	1.41	1.22	1.04
	-4.55	0.00	-65.47	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	0.00	0.00	0.00	0.00	0.00	0.00	0.09	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	173.01	185.63	190.20	169.14	228.08	223.80	205.46	188.65	168.61	155.19	140.96	131.98	125.61	120.40	121.24	119.84	115.80	114.37	100.30	102.93	88.52	76.16	85.24	78.08
	11.04	13.72	-16.63	12.48	15.81	20.21	14.97	12.52	12.20	11.65	10.86	10.74	10.94	10.62	10.55	11.08	10.59	9.41	8.21	8.22	7.42	6.22	6.13	5.50
	-29.92	0.00	-408.60	0.00	0.00	67.45	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	0.11	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	179.44	186.86	186.42	170.28	228.89	217.36	206.78	189.56	169.46	155.88	141.57	132.68	126.53	121.27	122.13	120.76	116.71	115.18	101.06	103.61	89.26	78.57	86.03	78.87
	12.26	14.95	-18.26	13.61	16.62	21.36	16.28	13.42	13.05	12.34	11.46	11.44	11.85	11.55	11.44	12.01	11.50	10.23	8.97	8.91	8.17	6.94	6.93	6.28
	-35.13	0.00	-406.45	0.00	0.00	75.05	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.07	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.68	0.11	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

NORTH 61755	130.28	170.15	-199.77	155.15	210.15	268.97	189.02	176.40	156.16	142.49	128.57	119.86	113.13	107.88	108.88	106.54	103.23	103.73	91.00	93.71	80.01	69.24	79.20	72.26
	-1.77	-1.75	1.99	-1.52	-2.12	-2.07	-1.48	0.27	-0.25	-1.04	-1.54	-1.38	-1.54	-1.90	-1.81	-2.21	-1.99	-1.23	-1.08	-0.99	-1.08	-0.70	-0.02	-0.33
	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	175.93	182.55	65.00	80.00	86.00	96.05	90.00	130.94	147.68	80.00	98.01	98.01	99.66	92.09	82.53	115.98	75.24	75.65	97.55	100.60	86.55	74.28	83.68	77.04
	8.54	10.64	10.14	5.81	8.75	9.20	9.48	7.53	10.24	7.78	2.51	7.37	5.95	5.93	5.48	7.23	5.26	4.40	5.47	5.89	5.46	4.33	4.56	4.46
	-35.34	0.00	108.73	22.74	61.58	82.01	84.27	9.49	23.15	49.32	-56.15	21.72	-3.54	4.65	13.50	0.00	11.82	9.01	0.00	0.00	0.00	0.00	0.10	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	119.53	149.95	30.52	10.00	35.00	67.11	61.03	109.00	115.00	-2.28	-25.33	35.00	53.49	44.21	40.00	40.00	46.91	44.00	79.31	81.03	69.41	59.82	60.49	62.87
	-16.51	-21.95	-24.33	-10.44	-18.15	-19.73	-19.49	-14.41	-22.44	-16.46	-5.13	-18.43	-12.25	-12.17	-10.93	-8.46	-10.09	-10.45	-12.77	-13.67	-11.69	-10.13	-11.41	-9.72
	-3.98	0.00	108.73	76.48	85.68	82.01	84.27	9.49	23.15	107.37	59.55	58.94	24.43	34.42	39.63	27.78	24.80	25.81	0.00	0.00	0.00	0.00	7.32	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	149.44	74.33	8.00	20.00	10.00	-10.00	-999.70	5.00	12.00	24.00	45.00	86.43	94.01	90.00	80.73	103.95	73.99	73.99	85.96	87.85	75.23	65.01	69.79	51.99
	-4.00	0.73	3.07	1.45	2.92	5.32	5.76	3.85	4.82	2.40	0.91	3.06	2.86	3.84	3.68	-4.80	4.00	2.73	-6.12	-6.85	-5.86	-5.16	-8.02	0.08
	-21.38	-24.67	158.65	78.38	131.74	184.18	1170.26	131.75	153.41	99.95	-4.74	29.01	-0.99	4.65	13.50	0.00	11.82	9.01	0.00	0.00	0.00	-0.22	1.40	23.56
	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	122.70	153.00	-116.20	142.13	192.83	247.08	172.17	156.87	137.59	126.64	115.75	108.14	101.57	98.77	99.36	97.97	94.57	93.09	81.58	83.29	71.29	61.44	62.31	64.05
	-13.81	-18.91	24.73	-14.53	-19.45	-23.96	-18.33	-19.27	-18.82	-16.89	-14.36	-13.10	-13.10	-11.01	-11.32	-10.78	-10.64	-11.86	-10.50	-11.41	-9.81	-8.51	-10.15	-8.53
	-4.46	0.00	-60.84	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	6.76	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