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: 07/24/2008

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	74.23	66.45	63.96	34.51	43.81	58.05	71.40	91.17	97.05	72.02	77.22	101.04	99.70	100.83	102.52	76.15	95.98	79.77	66.79	75.93	57.19	39.99	68.78	44.57
	2.50	2.16	1.82	0.96	1.28	1.91	2.73	3.92	4.76	3.63	4.00	5.59	5.38	5.08	5.12	3.50	4.25	3.89	3.45	4.00	2.73	2.13	3.04	1.96
	-0.40	-0.03	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	-0.75	-0.46	-1.18	-1.33	-0.91	-6.37	0.00	-10.40	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	70.79	63.01	60.89	32.99	41.81	55.05	67.74	86.54	92.02	68.05	73.03	95.53	94.00	95.69	97.13	71.87	91.61	74.58	61.73	70.71	48.78	37.94	56.05	41.86
	-0.54	-1.26	-1.25	-0.56	-0.73	-1.09	-0.93	-0.72	-0.28	-0.34	-0.19	0.09	-0.31	-0.06	-0.27	-0.03	0.34	-0.12	-0.29	-0.32	-0.01	0.08	-0.47	-0.74
	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	-0.70	0.00	-1.18	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	85.45	69.80	66.70	35.87	45.53	60.41	74.72	96.18	102.40	75.87	81.09	105.75	104.26	106.06	108.29	95.91	111.08	107.84	96.96	98.23	62.11	42.35	69.35	46.76
	5.59	4.87	4.33	2.32	3.00	4.28	6.05	8.92	10.11	7.47	7.87	10.30	9.94	10.31	10.89	8.26	10.26	8.52	7.15	8.38	5.81	4.50	6.13	4.16
	-8.53	-0.67	-0.23	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-15.75	-9.56	-24.62	-27.80	-18.82	-8.20	0.00	-7.87	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	70.18	61.64	59.15	31.96	40.35	53.22	65.28	83.48	89.36	66.22	71.12	92.80	91.47	93.21	94.62	70.09	89.54	72.65	59.75	68.22	46.62	36.36	53.59	40.23
	-1.15	-2.62	-2.99	-1.59	-2.18	-2.92	-3.39	-3.77	-2.94	-2.17	-2.11	-2.64	-2.85	-2.53	-2.78	-1.81	-1.73	-2.05	-2.26	-2.81	-2.02	-1.50	-2.66	-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	0.00	0.00	0.00	0.00	-0.54	0.00	-0.91	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	70.41	63.88	62.04	33.49	42.43	58.58	67.91	89.71	90.07	51.13	71.39	92.99	91.92	93.28	94.89	70.03	88.97	72.84	75.29	69.09	46.71	36.77	54.01	42.00
	-0.92	-0.38	-0.10	-0.07	-0.11	-0.29	-0.77	-1.95	-2.22	-1.36	-1.83	-2.46	-2.40	-2.47	-2.52	-1.86	-2.30	-1.87	-1.81	-1.94	-1.39	-1.08	-1.34	-0.61
	0.00	0.00	0.00	0.00	0.00	-2.92	0.00	-1.67	0.00	4.28	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-4.60	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	83.58	69.39	66.20	35.75	45.38	60.18	74.44	95.64	101.78	75.42	80.66	105.40	103.69	105.52	107.74	91.64	108.28	101.44	89.91	93.25	60.94	42.12	68.89	46.46
	5.32	4.56	4.06	2.20	2.85	4.04	5.77	8.39	9.48	7.02	7.43	9.96	9.37	9.78	10.34	7.84	9.78	8.10	6.84	7.98	5.52	4.27	5.72	3.86
	-6.93	-0.56	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	-11.90	-7.23	-18.64	-21.05	-14.24	-7.32	0.00	-7.82	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	138.20	98.88	98.19	37.08	47.08	96.72	134.38	140.88	118.28	115.00	121.07	119.96	134.60	130.81	120.83	122.89	123.25	122.88	122.63	117.10	114.22	115.36	108.53	82.06
	8.04	7.22	6.72	3.52	4.54	6.41	8.78	12.34	13.70	10.17	10.65	13.76	13.27	13.79	14.07	10.54	13.06	10.71	8.95	10.62	7.36	5.68	7.92	5.61
	-58.84	-27.40	-29.33	0.00	0.00	-34.18	-56.93	-41.28	-12.29	-36.43	-37.20	-10.75	-27.02	-21.27	-9.35	-40.46	-18.92	-37.46	-51.66	-35.45	-58.76	-71.83	-45.25	-33.85
	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	72.77	64.88	62.70	33.90	43.01	56.87	70.01	89.37	94.93	70.40	75.49	98.82	97.25	98.81	100.33	74.89	94.66	78.31	65.37	74.07	50.44	39.00	57.76	43.28
	0.90	0.57	0.56	0.34	0.48	0.74	1.34	2.12	2.63	2.00	2.27	3.37	2.93	3.06	2.93	2.11	2.85	2.17	1.72	1.92	1.42	1.15	1.22	0.68
	-0.53	-0.04	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	-0.89	-0.55	-1.44	-1.64	-1.12	-0.92	0.00	-1.19	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	84.82	69.60	66.28	35.77	45.40	60.24	74.52	95.87	102.09	75.67	80.91	105.60	104.06	105.83	108.06	95.41	110.71	107.18	96.30	97.70	61.95	42.25	69.24	46.62
	5.39	4.67	4.15	2.22	2.87	4.11	5.85	8.62	9.80	7.27	7.69	10.15	9.75	10.09	10.66	8.09	10.09	8.37	7.07	8.24	5.69	4.40	5.97	4.02
	-8.10	-0.66	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	-15.42	-9.36	-24.11	-27.22	-18.43	-8.16	0.00	-7.92	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	91.62	70.12	67.47	36.06	45.78	60.78	75.24	97.10	112.27	77.10	106.49	106.87	105.16	108.12	111.73	172.02	132.99	124.75	98.44	109.84	110.80	99.02	105.29	47.22
	5.93	5.19	4.64	2.51	3.25	4.65	6.56	9.85	11.10	8.22	8.63	11.37	10.85	11.26	11.89	8.99	11.21	9.27	7.73	9.09	6.26	4.86	6.74	4.62
	-14.36	-0.67	-0.69	0.00	0.00	0.00	0.00	0.00	-8.87	-0.49	-24.64	-0.05	0.00	-1.11	-2.44	-91.13	-30.51	-40.78	-28.69	-29.71	-56.44	-56.31	-43.20	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	69.76	63.38	61.67	33.28	42.16	55.51	67.48	85.17	89.68	66.47	71.05	92.56	91.53	92.83	94.35	69.64	88.51	72.50	59.89	68.57	46.25	36.40	53.47	41.56
	-1.57	-0.89	-0.47	-0.27	-0.38	-0.62	-1.19	-2.08	-2.62	-1.92	-2.17	-2.89	-2.78	-2.91	-3.05	-2.26	-2.76	-2.21	-2.12	-2.46	-1.85	-1.45	-1.88	-1.04
	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	77.67	67.48	64.70	34.90	44.32	61.45	72.14	97.00	98.00	98.00	78.12	102.02	100.82	101.97	103.72	82.40	100.23	89.02	91.76	83.28	58.39	40.46	68.54	45.20
	3.37	2.98	2.57	1.35	1.79	2.58	3.46	5.34	5.71	3.69	4.90	6.57	6.50	6.22	6.31	4.31	5.21	4.63	4.44	4.85	3.33	2.60	3.83	2.59
	-2.98	-0.24	0.00	0.00	0.00	-2.92	0.00	-1.67	0.00	-37.53	0.00	0.00	0.00	0.00	0.00	-6.20	-3.76	-9.68	-14.82	-7.40	-6.96	0.00	-9.36	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	67.77	50.73	56.34	30.43	38.20	53.15	60.68	80.65	82.43	50.00	65.26	84.69	96.13	85.55	86.83	64.55	82.91	67.11	70.20	62.89	42.96	33.39	60.20	61.50
	-3.56	-6.81	-5.80	-3.12	-4.33	-5.72	-7.99	-11.01	-9.86	-6.69	-7.96	-10.76	-7.69	-10.19	-10.57	-7.35	-8.36	-7.59	-6.91	-8.14	-5.77	-4.46	-7.97	-8.52
	0.00	5.00	0.00	0.00	0.00	-2.92	0.00	-1.67	0.00	0.08	0.00	0.00	-5.00	0.00	0.00	0.00	0.00	0.00	-4.60	0.00	-0.64	0.00	-3.36	-3.03
	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	73.24	60.09	57.96	31.34	39.76	60.15	64.93	140.00	89.49	85.00	72.55	92.13	89.66	92.16	93.75	88.84	96.23	87.95	96.98	80.29	57.18	42.71	59.31	40.06
	-3.30	-4.60	-4.18	-2.21	-2.77	1.28	-3.74	2.02	-4.00	2.52	-3.98	-3.33	-4.66	-3.59	-3.65	-2.45	-1.91	-2.44	3.79	-2.70	-1.80	-1.31	-2.78	-2.55
	-5.20	-0.42	0.00	0.00	0.00	-2.92	0.00	-47.99	-1.19	-25.70	-3.31	-0.01	0.00	0.00	0.00	-19.39	-6.87	-15.68	-20.68	-11.96	-10.88	-6.17	-6.74	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

WEST 61752	68.94	59.71	57.31	30.98	38.97	51.07	62.32	79.54	85.05	62.66	67.20	87.28	86.23	88.45	90.04	66.83	85.84	69.31	56.81	64.94	44.47	34.63	51.68	38.60
	-2.38	-4.55	-4.83	-2.57	-3.57	-5.07	-6.36	-7.71	-7.24	-5.73	-6.02	-8.17	-8.09	-7.30	-7.36	-5.07	-5.42	-5.40	-5.20	-6.09	-4.35	-3.23	-4.88	-4.00
	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	-0.72	0.00	-1.21	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