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: 07/26/2008

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	73.85	89.18	89.99	67.82	76.67	75.23	78.40	72.11	89.67	-149.75	86.90	97.59	73.54	58.85	80.34	92.01	80.49	41.08	98.12	100.29	94.03	86.66	71.57	82.13
	3.39	3.85	3.23	2.42	2.49	2.57	2.50	2.70	4.11	-7.84	4.40	4.82	3.44	2.28	2.84	3.67	3.02	1.86	4.77	4.39	4.62	4.17	3.01	3.49
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-13.00	-0.44	-0.02	-1.62	-3.25	-2.11	-1.54	-2.12	-0.60	-0.55	0.00	-0.07	-0.42	-0.41	-0.44
	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	68.77	82.87	84.31	63.54	72.31	70.63	74.19	67.90	83.64	-152.02	80.14	91.29	68.18	53.51	75.02	85.79	74.80	38.47	91.84	94.73	88.35	80.47	66.42	76.75
	-1.69	-2.46	-2.45	-1.86	-1.87	-2.03	-1.71	-1.50	-1.92	2.89	-1.92	-1.46	-0.31	0.19	-0.37	-1.01	-0.56	-0.15	-0.95	-1.17	-0.98	-1.60	-1.73	-1.45
	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	0.00	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	76.91	92.42	93.14	70.07	79.50	77.64	81.36	75.27	93.41	111.94	99.01	101.43	110.15	129.14	127.81	127.87	128.36	125.88	113.20	103.60	99.30	99.04	83.61	95.52
	6.45	7.09	6.38	4.66	5.32	4.98	5.46	5.87	7.85	-14.82	7.47	8.26	6.28	4.60	6.10	7.15	6.14	3.12	8.06	7.70	8.32	7.56	6.01	7.18
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-281.67	-9.48	-0.41	-35.37	-71.21	-46.31	-33.93	-46.86	-84.14	-12.35	0.00	-1.65	-9.41	-9.45	-10.14
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

GENESE 61753	66.74	80.26	81.71	61.82	70.30	68.85	71.96	65.55	80.62	-147.37	77.03	88.16	66.05	51.89	72.48	82.46	72.25	37.18	88.41	91.36	84.83	77.24	63.86	74.33
	-3.72	-5.07	-5.05	-3.58	-3.88	-3.80	-3.94	-3.85	-4.93	7.54	-5.04	-4.59	-2.44	-1.44	-2.91	-4.34	-3.10	-1.44	-4.38	-4.54	-4.50	-4.83	-4.28	-3.87
	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	69.50	52.99	86.63	65.34	74.11	72.64	75.81	88.70	83.63	-152.19	80.92	91.38	67.23	52.41	74.60	85.88	74.48	38.08	91.35	94.89	82.00	80.99	67.59	77.23
	-0.96	-0.21	-0.13	-0.07	-0.08	-0.01	-0.09	-0.43	-1.20	2.73	-1.14	-1.37	-1.26	-0.91	-0.79	-0.92	-0.87	-0.54	-1.44	-1.01	-1.33	-1.08	-0.56	-0.97
	0.00	0.17	0.00	0.00	0.00	0.00	0.00	-40.66	-5.85	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	0.00	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	76.37	91.72	92.53	69.62	79.00	77.21	80.91	74.79	92.82	70.46	97.06	100.78	104.50	118.46	121.01	122.86	121.51	113.56	111.34	103.42	98.72	97.32	81.84	93.56
	5.91	6.39	5.77	4.22	4.82	4.55	5.01	5.38	7.26	-13.92	6.93	7.68	5.89	4.45	6.04	7.05	6.09	3.12	8.00	7.52	7.98	7.22	5.64	6.71
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-239.29	-8.06	-0.35	-30.12	-60.69	-39.58	-29.01	-40.07	-71.82	-10.55	0.00	-1.41	-8.03	-8.06	-8.65
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

LONGIL 61762	78.89	94.20	94.71	71.46	81.04	79.04	82.61	76.73	95.77	108.64	111.36	109.71	113.94	130.31	129.06	129.50	129.60	126.57	114.81	107.31	105.42	105.20	91.15	98.13
	8.26	8.87	7.95	6.06	6.86	6.38	6.71	7.32	10.22	-19.39	10.35	11.42	8.56	5.70	7.31	8.74	7.34	3.72	9.66	10.55	11.43	10.43	8.43	9.47
	-0.16	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-282.93	-18.94	-5.54	-36.89	-71.29	-46.36	-33.97	-46.91	-84.23	-12.36	-0.87	-4.66	-12.69	-14.57	-10.46
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MHK VL 61756	71.11	85.76	87.05	65.53	74.43	72.86	76.30	70.00	86.65	-138.86	84.24	94.80	72.77	59.87	80.46	91.08	80.56	45.86	95.73	97.81	91.32	84.32	69.80	80.01
	0.65	0.44	0.29	0.13	0.24	0.21	0.40	0.60	1.10	-2.34	1.55	2.02	1.70	1.41	1.72	1.77	1.65	0.85	1.98	1.91	1.86	1.52	0.91	0.97
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-18.39	-0.63	-0.03	-2.57	-5.14	-3.35	-2.51	-3.55	-6.40	-0.96	0.00	-0.13	-0.74	-0.75	-0.84
	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	76.67	92.17	92.89	69.87	79.28	77.44	81.16	75.07	93.22	108.17	98.75	101.30	109.61	128.15	127.23	127.48	127.80	124.77	113.12	103.60	99.20	98.84	83.36	95.20
	6.21	6.84	6.13	4.47	5.09	4.78	5.26	5.66	7.66	-14.50	7.34	8.14	6.25	4.62	6.16	7.21	6.21	3.15	8.14	7.70	8.25	7.48	5.90	7.00
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-277.58	-9.35	-0.41	-34.88	-70.21	-45.68	-33.47	-46.23	-83.00	-12.19	0.00	-1.63	-9.28	-9.32	-10.00
	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	79.18	93.18	93.88	70.61	80.06	78.18	81.89	75.82	94.10	111.22	99.66	102.14	110.68	129.53	128.29	128.34	128.79	126.12	113.64	103.99	99.77	99.52	84.10	96.08
	7.17	7.85	7.12	5.21	5.88	5.52	5.99	6.41	8.54	-15.77	8.11	8.98	6.79	4.94	6.49	7.59	6.53	3.30	8.49	8.09	8.79	8.04	6.50	7.74
	-1.54	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-281.90	-9.49	-0.41	-35.40	-71.27	-46.41	-33.95	-46.90	-84.20	-12.36	0.00	-1.65	-9.42	-9.46	-10.15
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	68.92	84.02	86.02	64.82	73.52	72.15	75.28	68.45	84.02	-151.41	80.58	90.99	66.87	52.12	74.26	85.52	74.08	37.89	90.82	94.41	87.40	80.41	67.07	76.62
	-1.54	-1.31	-0.74	-0.58	-0.66	-0.50	-0.62	-0.96	-1.53	3.50	-1.48	-1.76	-1.61	-1.21	-1.14	-1.28	-1.28	-0.73	-1.97	-1.49	-1.93	-1.66	-1.07	-1.58
	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	74.94	56.05	60.00	68.66	77.44	76.10	79.09	76.41	89.00	-63.46	90.82	98.57	85.19	81.52	95.04	102.93	95.39	96.16	102.57	100.68	91.62	90.30	75.20	86.45
	4.48	2.85	3.37	3.26	3.26	3.45	3.19	2.28	4.17	-10.16	5.34	5.67	3.94	2.52	3.01	3.95	3.20	3.83	5.35	4.78	4.77	4.85	3.66	4.61
	0.00	0.17	14.17	0.00	0.00	0.00	0.00	-25.66	-5.85	-101.62	-3.42	-0.15	-12.76	-25.68	-16.63	-12.19	-16.83	-8.99	-4.44	0.00	-3.53	-3.38	-3.39	-3.64
	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	62.71	47.00	78.61	57.76	66.75	65.40	67.93	84.50	76.46	-136.68	70.00	80.23	60.53	47.61	65.91	74.45	65.65	33.89	80.09	83.05	72.60	69.73	58.13	68.99
	-7.75	-6.20	-6.47	-5.93	-7.43	-7.25	-5.93	-4.63	-8.37	18.23	-12.06	-12.52	-7.96	-5.72	-9.48	-12.35	-9.70	-4.73	-12.70	-12.85	-10.73	-12.34	-10.01	-9.21
	0.00	0.17	-14.27	-6.43	0.00	0.00	-10.65	-40.66	-5.85	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.01	0.00	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	55.00	50.00	80.94	58.00	69.81	67.52	71.51	90.23	98.00	114.79	88.00	86.70	88.77	120.01	101.69	104.03	101.60	91.03	95.59	90.01	92.51	82.16	68.55	81.34
	1.30	0.32	-5.82	1.26	-4.38	-5.13	-4.39	1.09	3.35	3.02	1.09	-6.31	-2.12	4.50	-3.03	-4.25	-3.43	-0.91	-5.02	1.44	2.98	-5.87	-5.58	-3.28
	17.01	3.70	0.00	0.51	0.00	0.00	0.00	-40.66	-15.67	-26.30	-4.91	-0.26	-22.40	-20.22	-29.32	-21.48	-29.67	-53.32	-7.82	-20.23	-6.21	-5.96	-5.98	-6.42
	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	63.86	76.50	78.45	59.44	67.91	66.31	69.21	62.45	76.21	-139.34	71.98	82.72	62.53	49.24	68.36	77.30	67.96	35.09	82.79	85.71	79.64	72.10	60.06	71.10
	-6.60	-8.83	-8.31	-5.96	-6.27	-6.34	-6.69	-6.95	-9.35	15.57	-10.08	-10.03	-5.95	-4.09	-7.03	-9.50	-7.39	-3.53	-10.00	-10.19	-9.69	-9.97	-8.09	-7.09
	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