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: 07/21/2008

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	155.44	178.70	140.91	88.50	132.92	97.06	122.36	116.49	134.21	138.55	142.43	143.80	142.23	152.59	175.75	179.59	133.14	156.79	133.45	146.66	128.77	124.49	105.63	109.77
	6.36	2.69	5.55	3.67	5.82	4.58	6.29	6.14	7.11	7.13	7.64	7.69	7.05	7.40	8.83	9.12	6.69	8.16	7.37	8.09	7.11	6.78	5.57	5.37
	-28.20	-124.31	-15.74	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.15	-1.48	-0.36	-3.91	-5.35	-5.18	-1.10	0.00	-0.37	-0.01	-0.57	-0.26
	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	121.50	64.98	117.23	81.86	123.38	90.35	114.08	109.57	126.90	131.50	135.40	137.18	134.14	145.93	168.40	169.23	122.73	144.60	125.43	139.41	121.45	117.51	99.12	103.71
	-2.69	-1.36	-4.25	-2.97	-3.72	-2.12	-1.99	-0.78	-0.21	0.07	0.61	1.07	2.11	2.21	1.84	2.67	1.63	1.15	0.44	0.84	0.15	-0.19	-0.37	-0.44
	-3.31	-14.64	-1.86	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	154.23	151.06	142.08	91.91	138.01	101.65	128.27	122.53	141.02	145.65	148.97	151.16	209.30	188.18	191.35	263.58	243.24	264.68	161.12	153.93	143.06	131.35	122.11	120.78
	11.95	5.00	10.51	7.09	10.91	9.18	12.21	12.18	13.91	14.23	14.18	15.05	13.83	14.59	17.58	17.71	13.28	15.75	13.79	15.36	14.10	13.39	11.12	11.42
	-21.40	-94.37	-11.95	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-63.44	-29.87	-7.21	-79.30	-108.86	-105.48	-22.34	0.00	-7.68	-0.25	-11.49	-5.21
	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	117.20	60.00	112.83	79.30	119.05	87.55	110.62	105.92	122.65	127.58	131.93	133.89	131.52	143.57	165.22	165.78	120.42	141.39	122.46	135.61	117.86	114.42	96.40	101.16
	-6.21	-2.83	-8.20	-5.54	-8.05	-4.93	-5.44	-4.43	-4.45	-3.83	-2.86	-2.22	-0.52	-0.15	-1.35	-0.79	-0.68	-2.06	-2.53	-2.96	-3.44	-3.28	-3.08	-2.99
	-2.53	-11.14	-1.41	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	118.42	50.75	118.25	83.97	85.00	90.90	113.58	107.60	123.84	127.94	130.97	132.00	128.18	139.84	161.95	161.54	117.28	139.01	121.23	134.46	117.70	114.44	96.83	101.44
	-2.46	-0.95	-1.37	-0.86	-1.22	-1.57	-2.49	-2.76	-3.26	-3.48	-3.82	-4.11	-3.85	-3.88	-4.61	-5.02	-3.82	-4.44	-3.76	-4.11	-3.59	-3.26	-2.65	-2.70
	0.00	0.00	0.00	0.00	15.52	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
	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	153.56	150.07	141.32	91.42	137.28	100.94	127.44	121.72	140.16	144.81	148.31	150.46	193.86	180.84	189.28	244.71	217.51	239.82	155.70	153.68	140.87	130.79	118.89	118.91
	11.46	4.74	9.84	6.59	10.18	8.46	11.37	11.37	13.06	13.39	13.52	14.35	13.48	14.35	17.22	17.57	13.16	15.68	13.62	15.11	13.70	12.89	10.61	10.78
	-21.22	-93.63	-11.86	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-48.35	-22.78	-5.50	-60.57	-83.24	-80.69	-17.10	0.00	-5.87	-0.19	-8.78	-3.98
	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	157.84	152.59	149.49	108.31	144.76	121.17	135.05	145.09	154.09	158.10	151.75	155.45	211.95	192.84	194.59	266.55	245.91	267.57	163.92	156.57	148.04	134.80	128.75	127.79
	15.37	6.45	14.06	9.82	14.38	12.38	16.24	16.19	17.64	18.45	16.96	18.50	15.87	17.28	20.82	20.66	15.93	18.61	16.59	18.00	17.48	16.30	13.84	14.60
	-21.59	-94.44	-15.81	-13.65	-3.28	-16.30	-2.75	-18.54	-9.34	-8.23	0.00	-0.84	-64.05	-31.83	-7.21	-79.32	-108.89	-105.51	-22.35	0.00	-9.26	-0.80	-15.43	-9.04
	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	126.71	67.39	123.14	86.02	129.27	94.33	118.91	113.73	131.48	136.20	139.85	141.49	141.13	151.24	173.44	178.08	132.49	155.45	131.11	144.03	126.41	122.01	103.46	107.41
	2.42	0.89	1.66	1.19	2.18	1.85	2.85	3.37	4.38	4.78	5.05	5.38	5.44	5.79	6.45	6.78	4.85	5.60	4.75	5.46	4.64	4.30	3.28	2.95
	-3.41	-14.80	-1.86	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-3.66	-1.73	-0.43	-4.74	-6.54	-6.40	-1.36	0.00	-0.47	-0.02	-0.69	-0.31
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MILLWD 61759	154.11	151.49	141.84	91.67	137.65	101.31	127.92	122.23	140.74	145.41	148.82	151.01	207.97	187.60	191.31	262.07	241.08	262.67	160.76	154.03	142.88	131.29	121.72	120.46
	11.71	4.88	10.20	6.84	10.55	8.83	11.86	11.88	13.64	13.99	14.02	14.90	13.87	14.66	17.70	17.89	13.44	15.99	13.91	15.46	14.08	13.33	10.98	11.21
	-21.52	-94.91	-12.02	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-62.06	-29.22	-7.05	-77.61	-106.54	-103.24	-21.87	0.00	-7.51	-0.25	-11.25	-5.10
	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	190.67	159.61	143.75	92.55	139.01	102.48	129.44	151.23	184.59	188.24	191.64	191.07	218.93	202.34	220.91	280.07	277.34	298.81	200.82	207.65	209.55	204.55	212.21	186.82
	12.66	5.37	11.37	7.72	11.91	10.00	13.37	13.38	15.40	15.74	15.65	16.41	14.75	15.41	18.57	18.46	13.84	16.37	14.24	16.01	14.79	14.13	11.83	12.31
	-57.13	-102.54	-12.76	0.00	0.00	0.00	0.00	-27.50	-42.09	-41.07	-41.19	-38.55	-72.15	-43.22	-35.77	-95.04	-142.40	-138.99	-61.60	-53.07	-73.47	-72.72	-100.89	-70.36
	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	117.71	50.47	117.74	83.70	125.28	90.64	113.32	107.30	123.44	127.41	130.30	131.12	127.38	139.21	160.97	160.45	116.25	137.80	120.32	133.49	116.94	113.80	96.24	100.72
	-3.16	-1.23	-1.88	-1.13	-1.82	-1.83	-2.74	-3.05	-3.65	-4.01	-4.49	-4.99	-4.66	-4.51	-5.59	-6.12	-4.85	-5.65	-4.67	-5.08	-4.35	-3.90	-3.25	-3.42
	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	153.93	167.20	140.75	89.36	92.10	98.26	123.71	117.47	135.12	139.45	143.14	144.66	164.67	163.37	179.11	207.58	171.07	193.72	141.68	147.15	131.98	125.11	110.42	112.80
	7.62	3.33	6.93	4.53	5.89	5.78	7.64	7.12	8.02	8.03	8.35	8.55	7.67	7.90	9.71	9.82	7.14	8.78	7.90	8.57	7.67	7.31	6.41	6.60
	-25.44	-112.17	-14.21	0.00	15.52	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-24.95	-11.75	-2.83	-31.20	-42.82	-41.49	-8.79	0.00	-3.02	-0.10	-4.52	-2.05
	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	110.12	58.97	105.67	74.30	73.68	108.00	102.37	120.00	110.94	115.29	119.52	120.91	119.28	130.59	149.93	150.70	109.46	127.82	110.86	123.13	106.99	104.30	88.85	94.80
	-13.72	-5.79	-15.60	-10.53	-12.54	-6.39	-13.69	-13.75	-16.17	-16.13	-15.27	-15.20	-12.75	-13.13	-16.63	-15.87	-11.64	-15.63	-14.12	-15.44	-14.30	-13.40	-10.64	-9.34
	-2.96	-13.07	-1.66	0.00	15.52	-21.40	0.00	-23.73	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

PJM 61847	129.56	115.45	78.88	70.00	87.77	86.03	108.82	999.70	122.65	126.56	131.20	133.59	172.64	164.02	168.75	212.84	185.18	203.29	135.04	136.42	122.77	113.09	155.00	79.00
	-6.71	-4.12	1.22	1.08	1.55	-6.45	-7.24	6.18	-4.45	-4.86	-3.59	-2.51	1.33	1.81	-2.27	0.19	-0.68	-2.45	-3.53	-2.15	-3.27	-4.77	4.78	3.60
	-15.39	-67.86	5.45	2.88	15.52	0.00	0.00	-883.49	0.00	0.00	0.00	0.00	-39.27	-18.49	-4.46	-46.09	-64.76	-62.30	-13.58	0.00	-4.75	-0.16	-51.51	26.23
	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	112.79	61.49	107.67	75.43	113.55	83.60	105.15	100.30	116.60	121.22	125.54	127.21	125.95	137.30	157.00	158.15	114.70	134.07	116.01	129.30	112.20	108.86	92.46	97.99
	-11.44	-4.97	-13.81	-9.40	-13.55	-8.88	-10.91	-10.05	-10.51	-10.20	-9.25	-8.90	-6.09	-6.42	-9.56	-8.41	-6.41	-9.38	-8.97	-9.27	-9.09	-8.84	-7.03	-6.15
	-3.35	-14.76	-1.87	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
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N