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: 07/17/2008

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	86.18	91.94	56.51	40.70	65.79	43.39	57.44	80.20	99.56	118.55	140.94	148.92	120.37	121.85	285.95	223.76	167.05	170.48	152.59	133.79	126.95	134.80	123.63	122.49
	4.78	2.57	1.63	1.15	3.81	2.64	3.49	5.38	6.91	8.21	9.85	10.00	8.06	8.30	2.28	7.12	10.66	11.24	9.89	8.70	8.17	8.73	7.60	6.44
	-8.94	-49.62	-29.15	-20.71	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-2.64	-2.24	-253.50	-115.61	-0.17	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	72.82	45.18	28.88	21.08	61.15	40.11	53.63	74.49	92.48	110.34	131.45	139.77	110.36	112.45	58.44	114.55	158.78	161.65	145.03	126.89	120.61	127.56	116.92	116.54
	-0.68	-0.40	-0.27	-0.19	-0.83	-0.64	-0.32	-0.33	-0.17	0.00	0.36	0.85	0.70	1.14	0.40	1.01	2.56	2.42	2.33	1.80	1.83	1.49	0.89	0.49
	-1.05	-5.84	-3.43	-2.43	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-27.87	-12.50	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	86.84	81.35	50.36	36.26	67.53	44.70	59.67	83.68	103.87	123.44	146.57	155.29	176.55	170.93	216.17	242.61	177.56	177.26	157.78	138.25	131.20	138.76	127.67	127.21
	7.61	4.00	2.52	1.72	5.56	3.96	5.72	8.85	11.22	13.10	15.48	16.37	13.18	13.47	3.60	11.68	17.87	18.03	15.08	13.16	12.42	12.69	11.64	11.15
	-6.77	-37.60	-22.10	-15.70	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-53.71	-46.15	-182.40	-129.90	-3.47	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	71.65	42.88	27.31	19.96	59.70	39.11	52.67	72.55	90.51	108.94	130.22	139.45	110.53	113.09	52.32	112.93	160.98	163.69	147.57	129.03	122.03	128.90	118.21	117.19
	-1.61	-1.29	-1.02	-0.72	-2.28	-1.64	-1.29	-2.27	-2.14	-1.40	-0.87	0.53	0.87	1.78	0.47	2.17	4.76	4.45	4.86	3.95	3.25	2.83	2.18	1.14
	-0.80	-4.43	-2.60	-1.85	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-21.69	-9.73	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	70.41	38.66	25.07	18.39	60.51	40.50	52.53	72.60	89.93	107.33	127.52	135.26	106.52	107.98	29.27	98.35	151.85	154.90	139.07	131.01	122.22	126.72	79.54	73.21
	-2.04	-1.08	-0.66	-0.45	-1.47	-0.90	-1.42	-2.22	-2.71	-3.01	-3.57	-3.66	-3.15	-3.34	-0.90	-2.69	-4.37	-4.33	-3.63	-3.14	-3.01	-2.94	-2.76	-2.64
	0.00	0.00	0.00	0.00	0.00	-5.51	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	-13.26	-9.65	-11.98	32.79	41.49
	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	86.19	80.74	50.00	36.03	67.14	44.38	59.22	83.00	103.09	122.65	145.84	154.67	163.36	159.60	214.74	230.53	176.41	176.87	157.59	138.07	131.02	138.46	127.11	126.54
	7.02	3.70	2.34	1.60	5.16	3.63	5.26	8.17	10.44	12.31	14.76	15.76	12.84	13.17	3.50	11.58	17.54	17.64	14.89	12.98	12.24	12.39	11.09	10.49
	-6.71	-37.29	-21.93	-15.59	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-40.85	-35.12	-181.08	-117.91	-2.65	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	91.66	82.56	51.23	36.87	69.33	45.90	61.56	105.23	125.62	126.65	149.51	159.03	178.73	172.77	216.97	245.47	181.57	181.66	161.18	140.71	133.42	140.27	133.71	131.06
	9.87	5.18	3.38	2.31	7.36	5.16	7.61	11.58	14.57	16.27	18.42	20.11	15.34	15.29	4.25	14.46	21.88	22.43	18.48	15.62	14.64	14.20	14.27	15.00
	-9.33	-37.63	-22.12	-15.72	0.00	0.00	0.00	-18.83	-18.40	-0.04	0.00	0.00	-53.72	-46.16	-182.55	-129.98	-3.47	0.00	0.00	0.00	0.00	0.00	-3.41	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

MHK VL 61756	75.12	46.23	29.54	21.55	63.24	41.59	55.42	77.13	95.87	114.47	136.16	144.46	116.86	118.28	56.33	118.97	162.61	165.51	148.24	129.76	123.43	131.03	120.24	119.59
	1.65	0.89	0.55	0.40	1.26	0.85	1.46	2.31	3.22	4.13	5.08	5.54	4.14	4.33	1.20	3.83	6.18	6.28	5.53	4.67	4.65	4.96	4.21	3.54
	-1.01	-5.59	-3.26	-2.31	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.06	-2.64	-24.97	-14.11	-0.21	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	86.66	81.44	50.40	36.29	67.35	44.58	59.49	83.41	103.58	123.18	146.36	155.15	175.38	169.96	217.45	242.32	177.65	177.39	157.92	138.36	131.26	138.76	127.52	126.94
	7.39	3.88	2.44	1.66	5.37	3.83	5.53	8.59	10.93	12.84	15.27	16.23	13.17	13.49	3.60	11.83	18.04	18.16	15.22	13.27	12.48	12.69	11.50	10.89
	-6.81	-37.82	-22.23	-15.79	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-52.56	-45.16	-183.68	-129.45	-3.39	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	89.23	81.72	50.60	36.43	68.04	45.09	60.18	89.82	108.89	128.02	147.69	160.28	178.46	172.66	214.98	243.68	208.68	201.85	164.77	140.07	133.96	145.11	181.65	183.70
	8.31	4.35	2.76	1.88	6.06	4.34	6.22	9.57	12.11	14.14	16.60	17.39	13.79	14.15	3.79	12.09	18.49	18.69	15.51	13.52	12.79	13.31	12.30	11.90
	-8.46	-37.62	-22.11	-15.71	0.00	0.00	0.00	-5.43	-4.13	-3.54	0.00	-3.98	-55.00	-47.20	-181.02	-130.55	-33.96	-23.93	-6.56	-1.46	-2.39	-5.73	-53.32	-55.75
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	69.90	38.41	24.91	18.29	60.23	39.68	52.41	72.28	89.66	107.25	127.49	135.20	106.28	107.71	29.22	98.37	151.69	154.75	139.12	121.84	115.66	122.85	112.99	112.66
	-2.56	-1.33	-0.82	-0.55	-1.75	-1.06	-1.54	-2.54	-2.99	-3.09	-3.60	-3.72	-3.38	-3.60	-0.95	-2.66	-4.53	-4.48	-3.58	-3.25	-3.12	-3.22	-3.04	-3.40
	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	86.17	87.51	53.98	38.89	66.51	60.00	58.10	81.00	100.36	119.29	141.96	149.85	139.72	138.67	253.71	225.26	169.43	171.28	152.95	142.98	134.16	138.05	89.78	82.00
	5.67	3.07	1.98	1.38	4.53	2.73	4.14	6.18	7.72	8.96	10.88	10.93	8.93	9.20	2.50	7.89	11.84	12.05	10.24	8.82	8.92	8.38	7.48	6.16
	-8.05	-44.70	-26.27	-18.67	0.00	-21.38	0.00	0.00	0.00	0.00	0.00	0.00	-21.13	-18.15	-221.04	-116.33	-1.36	0.00	0.00	-13.26	-9.65	-11.98	32.79	41.49
	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	68.27	41.67	26.44	19.36	56.86	38.99	49.83	67.35	83.90	108.00	121.35	130.17	102.95	105.17	53.77	107.18	149.81	145.00	138.62	131.61	118.76	124.84	79.95	75.43
	-5.13	-3.28	-2.35	-1.66	-5.12	-2.41	-4.13	-7.47	-8.75	-7.23	-9.75	-8.75	-6.71	-6.14	-1.80	-5.25	-6.41	-5.50	-4.09	-2.54	-6.48	-4.82	-2.35	-0.40
	-0.94	-5.21	-3.06	-2.18	0.00	-5.51	0.00	0.00	0.00	-9.73	0.00	0.00	0.00	0.00	-25.40	-11.39	0.00	-6.54	0.00	-13.26	-9.65	-11.98	32.79	41.49
	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	50.50	64.65	40.00	28.96	57.91	42.79	59.85	87.00	89.97	107.16	129.03	149.00	142.72	139.74	162.47	188.74	150.00	159.95	143.61	142.16	132.57	166.43	112.83	67.00
	2.54	-2.14	-1.62	-1.17	-4.07	1.39	3.17	1.99	-2.68	-3.18	-2.07	9.32	-0.20	-0.15	1.20	-0.13	7.81	0.80	0.91	8.01	7.34	6.18	5.38	4.46
	18.85	-27.04	-15.89	-11.29	0.00	-5.51	6.15	-47.37	0.00	0.00	0.00	-16.99	-33.26	-28.57	-131.10	-87.83	-13.16	0.08	0.00	-13.26	-9.65	-42.57	7.64	54.79
	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	69.77	43.09	27.27	19.95	57.75	37.67	50.83	69.41	86.64	104.47	125.42	134.66	106.49	108.86	58.09	111.63	154.74	157.18	142.55	124.97	118.54	124.64	114.96	114.17
	-3.75	-2.53	-1.91	-1.34	-4.23	-3.07	-3.12	-5.42	-6.01	-5.87	-5.67	-4.26	-3.18	-2.46	-0.69	-2.24	-1.48	-2.06	-0.15	-0.12	-0.24	-1.43	-1.06	-1.88
	-1.06	-5.88	-3.45	-2.45	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-28.62	-12.84	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