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: 06/01/2008

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	170.42	141.19	74.79	47.29	63.50	103.13	115.20	129.92	161.15	124.79	143.53	82.52	124.30	155.93	160.31	186.99	317.88	134.04	146.27	289.01	137.53	126.63	203.73	98.97
	8.29	6.72	3.63	2.18	3.16	2.41	5.36	6.73	6.56	3.00	2.14	4.49	6.47	3.85	2.20	0.22	0.97	3.40	8.03	-7.47	7.84	6.70	5.73	5.28
	0.00	0.00	0.00	0.00	0.00	-58.33	-21.14	-16.77	-52.45	-74.75	-107.23	0.00	0.00	-88.59	-122.05	-183.24	-300.51	-73.24	-1.18	-412.87	0.00	0.00	-102.38	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	157.79	131.34	70.13	44.09	59.21	48.82	89.47	105.90	106.06	55.39	47.19	76.93	116.90	74.23	51.44	26.27	53.89	66.38	137.24	-64.14	129.10	118.53	106.43	92.08
	-4.33	-3.12	-1.03	-1.02	-1.13	-0.79	-1.85	-2.60	-2.59	-0.91	-0.27	-1.10	-0.93	-0.21	0.24	0.02	0.22	-0.07	0.04	1.42	-0.59	-1.40	-1.80	-1.61
	0.00	0.00	0.00	0.00	0.00	-7.23	-2.62	-2.08	-6.50	-9.27	-13.30	0.00	0.00	-10.95	-15.14	-22.71	-37.27	-9.05	-0.15	-50.83	0.00	0.00	-12.60	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	173.30	143.14	76.08	47.80	64.05	89.61	110.64	126.80	149.74	107.91	118.85	85.48	129.22	137.60	133.00	143.18	246.81	119.63	153.28	184.05	143.87	132.25	182.53	102.11
	11.18	8.67	4.92	2.70	3.70	2.77	5.83	7.61	7.71	4.06	3.15	7.45	11.39	6.83	4.24	0.40	1.95	6.54	15.33	-12.45	14.17	12.31	9.34	8.42
	0.00	0.00	0.00	0.00	0.00	-44.45	-16.11	-12.77	-39.89	-56.82	-81.54	0.00	0.00	-67.28	-92.71	-139.24	-228.46	-55.69	-0.90	-312.89	0.00	0.00	-77.57	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	151.18	125.76	67.14	42.12	56.61	44.66	84.49	100.01	98.95	50.00	41.26	73.13	111.11	67.73	45.04	18.97	41.43	61.05	131.23	-75.95	123.51	113.09	98.28	88.35
	-10.94	-8.71	-4.02	-2.99	-3.73	-2.65	-6.00	-7.82	-7.62	-3.34	-1.97	-4.90	-6.72	-3.31	-1.40	-0.14	-0.50	-2.58	-5.92	5.29	-6.19	-6.85	-6.06	-5.34
	0.00	0.00	0.00	0.00	0.00	-4.93	-1.78	-1.42	-4.43	-6.32	-9.07	0.00	0.00	-7.54	-10.38	-15.58	-25.54	-6.23	-0.10	-35.15	0.00	0.00	-8.72	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	161.46	133.99	70.49	44.92	59.94	42.05	88.03	105.50	101.13	46.46	33.59	76.88	116.09	62.13	35.02	3.43	15.89	55.93	133.55	-113.50	126.54	117.74	94.04	92.41
	-0.67	-0.49	-0.67	-0.19	-0.40	-0.33	-0.67	-0.92	-1.00	-0.57	-0.57	-1.14	-1.74	-1.36	-1.03	-0.11	-0.50	-1.47	-3.51	2.89	-3.15	-2.20	-1.58	-1.28
	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

HUD VL 61758	172.28	142.46	75.68	47.61	63.80	88.98	110.08	126.13	148.87	107.09	117.85	84.96	128.34	136.21	131.46	141.28	243.56	118.44	152.50	182.27	143.17	131.55	181.34	101.54
	10.16	7.99	4.52	2.50	3.46	2.57	5.42	7.06	7.21	3.77	2.94	6.93	10.51	6.32	3.93	0.38	1.82	6.10	14.56	-12.00	13.47	11.61	8.74	7.85
	0.00	0.00	0.00	0.00	0.00	-44.02	-15.95	-12.65	-39.52	-56.28	-80.74	0.00	0.00	-66.40	-91.47	-137.37	-225.34	-54.94	-0.89	-310.66	0.00	0.00	-76.98	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	176.34	146.26	77.96	48.93	65.56	90.65	112.46	129.00	152.00	123.21	127.85	119.24	132.66	143.86	134.04	144.44	248.26	153.85	157.57	204.05	166.33	204.76	185.18	106.25
	14.21	11.79	6.80	3.82	5.22	3.78	7.64	9.80	9.94	5.62	4.13	10.05	14.81	8.69	5.20	0.49	2.50	8.48	19.25	-15.10	18.36	16.24	11.93	10.63
	0.00	0.00	0.00	0.00	0.00	-44.48	-16.12	-12.78	-39.92	-70.56	-89.56	-31.16	-0.02	-71.67	-92.78	-140.41	-229.37	-87.96	-1.27	-335.55	-18.29	-68.59	-77.63	-1.94
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MHK VL 61756	163.73	135.86	72.14	45.56	61.04	49.93	92.17	109.82	110.09	56.90	47.76	79.77	120.70	74.95	50.46	23.39	48.92	66.45	140.50	-76.10	133.04	122.84	108.46	95.14
	1.61	1.40	0.98	0.45	0.70	0.49	0.91	1.35	1.60	0.91	0.82	1.74	2.87	1.62	1.02	0.10	0.47	1.34	3.33	-2.47	3.35	2.91	1.79	1.45
	0.00	0.00	0.00	0.00	0.00	-7.05	-2.55	-2.04	-6.36	-8.96	-12.77	0.00	0.00	-9.83	-13.39	-19.76	-32.06	-7.70	-0.12	-42.76	0.00	0.00	-11.05	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	172.86	142.87	75.91	47.71	63.94	89.76	110.55	126.66	149.83	108.20	119.33	85.43	129.12	137.93	133.52	144.00	248.15	119.94	153.25	186.01	143.85	132.19	182.95	101.98
	10.73	8.40	4.75	2.61	3.59	2.69	5.66	7.40	7.57	4.01	3.12	7.40	11.29	6.75	4.20	0.40	1.94	6.52	15.30	-12.60	14.16	12.25	9.24	8.29
	0.00	0.00	0.00	0.00	0.00	-44.69	-16.19	-12.84	-40.12	-57.16	-82.04	0.00	0.00	-67.68	-93.27	-140.07	-229.82	-56.02	-0.90	-315.00	0.00	0.00	-78.09	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	199.37	255.55	255.77	233.48	64.40	89.88	111.05	127.27	168.81	183.78	184.73	107.16	176.37	183.89	180.02	165.39	232.22	161.34	198.08	224.91	169.12	133.00	183.28	121.28
	12.33	9.61	5.44	2.98	4.05	3.02	6.23	8.08	8.28	4.40	3.39	8.02	12.17	7.25	4.49	0.42	2.05	6.85	15.98	-12.62	14.84	13.06	10.05	9.14
	-24.92	-111.48	-179.17	-185.39	0.00	-44.48	-16.11	-12.77	-58.39	-132.35	-147.18	-21.11	-46.37	-113.15	-139.48	-161.44	-213.78	-97.09	-45.05	-353.92	-24.59	0.00	-77.61	-18.45
	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	160.29	133.12	70.05	44.66	59.60	41.82	87.39	104.75	100.50	46.10	33.33	76.28	115.12	61.62	34.69	3.41	15.68	55.29	131.90	-112.39	125.00	116.77	93.12	91.60
	-1.83	-1.35	-1.11	-0.44	-0.75	-0.57	-1.32	-1.68	-1.64	-0.93	-0.83	-1.75	-2.71	-1.87	-1.36	-0.13	-0.71	-2.11	-5.15	4.01	-4.69	-3.16	-2.50	-2.08
	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

NPX 61845	170.14	140.72	72.00	78.01	82.00	97.35	113.12	128.29	155.79	117.32	132.93	82.85	124.95	147.74	148.53	168.70	288.19	127.44	147.82	246.25	138.88	127.45	193.80	99.33
	8.01	6.25	3.91	3.15	4.22	2.38	5.36	6.76	6.45	3.07	2.30	4.83	7.12	4.57	2.67	0.26	1.21	4.08	9.71	-8.85	9.19	7.52	6.09	5.64
	0.00	0.00	9.77	1.45	5.90	-52.59	-19.05	-15.11	-47.20	-67.22	-96.47	0.00	0.00	-79.68	-109.81	-164.91	-270.59	-65.96	-1.07	-371.48	0.00	0.00	-92.09	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	142.27	119.34	64.25	40.10	54.01	43.80	80.82	94.37	93.15	47.88	40.61	67.63	102.98	64.92	44.91	21.81	45.54	58.66	77.94	89.00	114.89	104.71	101.00	120.00
	-19.86	-15.13	-6.91	-5.00	-6.33	-4.46	-10.01	-13.74	-14.26	-6.66	-4.33	-10.39	-14.86	-7.58	-3.55	-0.36	-1.43	-6.20	-8.54	-9.39	-14.80	-15.23	-14.20	-12.68
	0.00	0.00	0.00	0.00	0.00	-5.87	-2.13	-1.69	-5.27	-7.51	-10.77	0.00	0.00	-9.01	-12.41	-18.64	-30.58	-7.46	-7.36	-6.22	0.00	0.00	-14.80	-27.61
	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	35.00	16.00	37.54	15.00	10.00	31.11	32.50	14.00	121.72	76.85	86.34	74.05	132.00	110.96	131.31	104.07	166.24	96.56	136.26	69.96	125.98	114.88	43.00	51.00
	-0.99	1.18	-2.45	1.30	-0.81	1.84	0.62	1.75	-6.86	-2.94	-1.71	-3.98	3.27	-1.11	7.25	0.00	0.30	-1.04	-1.44	5.56	-3.71	-5.05	3.58	4.27
	35.49	58.94	31.17	62.60	72.86	62.50	58.66	93.53	-26.44	-32.77	-53.89	0.00	-52.66	-48.58	-30.21	-100.54	-149.54	-40.21	-0.65	27.78	0.00	0.00	60.98	58.34
	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	145.71	122.30	65.95	40.98	55.09	45.34	82.97	97.02	96.27	50.15	43.01	69.96	106.80	68.45	48.06	24.69	50.61	61.64	127.40	-58.36	119.18	108.66	98.28	85.94
	-16.41	-12.17	-5.22	-4.13	-5.25	-3.68	-8.14	-11.31	-11.82	-5.36	-3.33	-8.07	-11.03	-5.40	-2.26	-0.24	-0.89	-4.32	-9.79	9.76	-10.51	-11.28	-9.33	-7.75
	0.00	0.00	0.00	0.00	0.00	-6.63	-2.40	-1.91	-5.95	-8.48	-12.18	0.00	0.00	-10.35	-14.26	-21.40	-35.11	-8.55	-0.14	-48.27	0.00	0.00	-11.99	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