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: 07/23/2008

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	65.44	46.17	41.58	38.59	58.81	31.43	65.72	60.16	80.84	89.87	100.44	99.16	99.74	96.60	94.14	-743.39	18.38	27.25	33.18	23.11	17.66	-105.37	-415.31	-11.91
	2.88	1.92	1.80	1.46	2.19	1.27	3.15	2.96	4.22	5.08	5.51	5.44	5.15	4.79	4.69	-38.55	0.54	0.97	1.36	0.78	0.50	-5.30	-18.97	-0.63
	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	-0.02	-37.44	-5.87	-5.53	-5.70	-6.54	-6.70	-12.52	-29.14	-4.38
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

CENTRL 61754	61.78	43.40	38.84	36.62	55.78	29.68	62.18	57.34	76.98	85.12	95.47	94.52	96.24	92.89	90.27	-759.11	12.31	21.21	26.61	16.09	10.65	-113.81	-428.05	-15.58
	-0.77	-0.85	-0.95	-0.51	-0.84	-0.47	-0.39	0.13	0.36	0.33	0.54	0.80	1.65	1.09	0.84	-16.82	0.35	0.47	0.49	0.30	0.19	-1.21	-2.58	0.08
	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

DUNWOD 61760	68.53	47.97	43.14	40.29	61.60	32.89	68.85	63.23	84.36	93.46	104.28	103.44	104.73	102.23	99.97	174.36	149.97	150.70	159.10	167.93	164.99	162.71	156.40	71.30
	5.98	3.72	3.36	3.16	4.98	2.74	6.27	6.02	7.75	8.67	9.35	9.71	10.14	10.21	10.08	-76.23	1.03	1.76	2.30	1.39	0.92	-9.79	-37.74	-1.35
	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	-0.22	-0.47	-992.87	-136.98	-128.20	-130.67	-150.75	-153.61	-285.10	-619.61	-88.31
	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	60.09	42.15	37.40	35.07	53.66	28.63	60.05	55.61	75.07	83.48	93.98	93.14	94.75	91.15	88.66	-750.59	12.33	21.13	26.23	15.92	10.58	-113.92	-429.12	-15.45
	-2.46	-2.11	-2.39	-2.06	-2.96	-1.53	-2.53	-1.59	-1.55	-1.30	-0.95	-0.58	0.16	-0.65	-0.76	-8.30	0.36	0.38	0.11	0.12	0.11	-1.33	-3.64	0.21
	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	0.00	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	61.47	43.71	39.30	36.66	55.87	55.35	61.92	55.80	74.76	82.48	92.40	91.18	91.85	89.04	86.71	-720.03	11.63	20.21	41.02	15.38	10.19	-109.68	-414.81	-15.38
	-1.08	-0.54	-0.48	-0.47	-0.75	-0.47	-1.08	-1.41	-1.86	-2.31	-2.53	-2.55	-2.74	-2.75	-2.71	22.25	-0.34	-0.53	-1.03	-0.41	-0.28	2.91	10.66	0.28
	0.00	0.00	0.00	0.00	0.00	-21.15	-9.54	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.81	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	68.10	47.71	42.93	40.17	61.37	32.73	68.43	62.87	83.93	92.95	103.76	103.02	104.46	101.72	99.42	22.51	130.12	132.07	140.12	146.12	142.76	121.53	64.23	57.52
	5.54	3.46	3.14	3.04	4.75	2.58	5.85	5.66	7.31	8.16	8.83	9.29	9.86	9.75	9.64	-76.01	1.04	1.72	2.25	1.36	0.90	-9.68	-37.10	-1.30
	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	-0.16	-0.36	-840.80	-117.12	-109.60	-111.75	-128.96	-131.39	-243.80	-526.80	-74.48
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

LONGIL 61762	77.98	52.42	44.38	41.38	63.26	33.90	70.70	64.85	86.58	97.55	125.74	127.26	129.83	130.14	132.15	171.18	150.35	151.37	159.79	168.35	165.41	159.68	142.50	93.72
	7.92	4.92	4.48	4.25	6.64	3.74	8.12	7.65	9.96	11.13	12.34	12.62	13.24	13.18	12.94	-94.71	1.25	2.28	2.85	1.64	1.17	-13.14	-52.31	-1.86
	-7.50	-3.24	-0.12	0.00	0.00	0.00	0.00	0.00	0.00	-1.63	-18.47	-20.91	-21.99	-25.16	-29.78	-1008.18	-137.13	-128.34	-130.82	-150.91	-153.77	-285.41	-620.28	-111.24
	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	63.77	44.98	40.36	37.79	57.59	30.68	64.15	58.92	78.97	87.42	97.96	97.12	98.28	94.99	92.37	-711.80	20.89	29.84	35.61	26.29	21.13	-96.88	-394.01	-10.18
	1.22	0.72	0.58	0.66	0.97	0.53	1.58	1.71	2.36	2.63	3.03	3.40	3.68	3.18	2.91	-28.01	0.45	0.69	0.86	0.52	0.34	-3.37	-9.01	-0.24
	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	-0.03	-58.50	-8.47	-8.40	-8.62	-9.98	-10.33	-19.08	-40.46	-5.72
	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	68.33	47.84	43.01	40.18	61.42	32.80	68.63	63.04	84.14	93.22	104.07	103.25	104.58	102.07	99.79	135.58	148.19	149.05	157.42	165.98	162.98	159.10	148.75	70.13
	5.78	3.58	3.23	3.05	4.80	2.64	6.05	5.83	7.52	8.43	9.14	9.53	9.99	10.05	9.91	-75.33	1.03	1.74	2.28	1.38	0.91	-9.68	-37.19	-1.30
	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	-0.21	-0.46	-953.20	-135.19	-126.57	-129.02	-148.80	-151.60	-281.37	-611.41	-87.09
	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	130.03	110.24	104.93	71.24	62.16	33.20	85.06	92.41	106.54	115.48	106.19	117.50	116.86	111.88	108.92	174.73	147.72	150.96	159.37	168.55	166.49	164.56	159.15	72.97
	6.59	4.12	3.72	3.50	5.54	3.04	6.96	6.70	8.59	9.60	10.34	10.81	11.27	11.33	11.15	-81.94	1.13	1.91	2.46	1.47	0.97	-10.03	-39.03	-1.43
	-60.88	-61.86	-61.42	-30.62	0.00	0.00	-15.53	-28.50	-21.34	-21.09	-0.92	-12.97	-10.99	-8.75	-8.34	-998.96	-134.62	-128.31	-130.78	-151.29	-155.06	-287.19	-623.64	-90.06
	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	61.14	43.48	39.11	36.45	55.48	29.66	60.93	55.48	74.36	82.08	91.99	90.73	91.22	88.35	85.93	-713.92	11.54	20.08	25.28	15.27	10.12	-108.89	-409.63	-15.23
	-1.41	-0.78	-0.67	-0.68	-1.14	-0.50	-1.64	-1.73	-2.26	-2.71	-2.94	-2.99	-3.37	-3.45	-3.50	28.37	-0.43	-0.67	-0.85	-0.52	-0.35	3.70	15.84	0.43
	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	66.18	46.62	42.05	39.04	59.47	57.63	66.25	60.61	80.99	90.03	100.49	99.03	94.00	97.03	97.00	94.00	88.00	67.64	82.00	70.65	66.09	-15.95	-224.76	15.43
	3.63	2.37	2.27	1.91	2.85	1.82	3.26	3.41	4.37	5.24	5.56	5.30	4.85	5.14	5.27	5.11	5.31	0.90	1.83	0.78	0.52	-5.62	-22.12	-0.85
	0.00	0.00	0.00	0.00	0.00	-21.15	-9.54	0.00	0.00	0.00	0.00	0.00	8.24	-0.09	2.11	0.80	10.50	-45.99	-38.93	-54.07	-55.10	-102.26	-222.83	-31.94
	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	56.66	39.72	35.02	32.91	50.49	52.24	57.49	51.63	69.61	77.00	86.52	85.59	86.95	82.95	80.43	-690.94	11.58	68.00	41.13	15.00	10.00	-107.95	-413.65	-14.86
	-5.90	-4.53	-4.76	-4.22	-6.13	-3.58	-5.50	-5.57	-7.00	-7.79	-8.41	-8.13	-7.64	-8.85	-9.00	51.35	-0.39	-1.28	-0.93	-0.79	-0.47	4.65	11.82	0.79
	0.00	0.00	0.00	0.00	0.00	-21.15	-9.54	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-10.39	-0.81	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

PJM 61847	58.43	40.41	36.13	34.98	53.27	57.00	65.00	75.00	105.00	83.38	91.23	89.86	93.27	90.78	89.43	-110.78	98.63	101.83	110.77	110.99	107.65	90.00	81.00	69.00
	-4.13	-3.85	-3.66	-2.15	-3.35	1.19	2.01	2.70	3.80	-2.60	-3.70	-3.91	-1.33	-1.32	-0.75	7.60	-0.10	-0.12	1.40	-0.28	-0.11	0.27	-1.07	0.01
	0.00	0.00	0.00	0.00	0.00	-21.15	-9.54	-18.54	-12.47	-1.19	0.00	-0.04	0.00	-0.30	-0.75	-623.91	-86.76	-81.20	-68.12	-95.48	-97.29	-79.80	-124.80	-67.94
	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	57.89	40.34	35.63	33.76	51.66	27.34	57.39	53.07	71.86	79.49	89.43	88.52	90.58	86.61	83.71	-716.90	11.90	20.46	25.34	15.42	10.26	-109.85	-421.11	-15.10
	-4.66	-3.92	-4.16	-3.37	-4.96	-2.82	-5.19	-4.13	-4.76	-5.30	-5.50	-5.20	-4.01	-5.19	-5.72	25.39	-0.07	-0.28	-0.79	-0.37	-0.21	2.74	4.36	0.57
	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