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: 07/19/2008

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	117.45	108.08	74.59	71.89	89.10	63.98	55.43	54.71	67.71	79.72	94.31	115.17	127.47	190.48	-123.93	33.43	18.17	76.73	189.52	130.05	117.56	126.25	99.10	79.66
	6.12	0.78	3.52	3.56	4.40	3.16	2.54	2.86	4.06	4.81	6.02	7.40	8.25	7.59	-10.16	1.34	0.36	3.25	3.33	6.95	7.42	5.71	4.50	4.07
	-6.90	-93.52	-6.32	0.00	0.00	0.00	0.00	-0.68	-0.23	-3.16	0.00	0.00	0.00	-79.24	-31.66	-10.85	-12.19	-27.35	-141.95	-27.05	-6.54	-38.76	-28.35	-10.02
	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	103.81	24.53	64.24	66.57	82.48	59.34	51.84	50.24	62.33	70.98	87.48	107.82	119.15	112.47	-145.86	21.70	5.70	48.17	60.53	98.35	103.45	85.38	68.79	65.98
	-1.39	-0.16	-1.24	-1.76	-2.23	-1.49	-1.05	-1.00	-1.12	-1.13	-0.81	0.05	-0.07	-0.31	-0.91	0.47	0.08	0.36	-0.30	-0.86	-0.92	-0.89	-0.76	-0.75
	-0.77	-10.91	-0.73	0.00	0.00	0.00	0.00	-0.08	-0.03	-0.37	0.00	0.00	0.00	-9.13	-0.49	0.00	0.00	-1.68	-16.60	-3.15	-0.76	-4.49	-3.29	-1.17
	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	126.28	86.03	75.65	74.36	91.90	66.05	57.24	56.53	70.20	81.90	97.54	119.82	132.75	175.39	460.38	269.41	275.32	353.08	156.56	127.50	120.49	120.87	95.48	80.42
	10.70	1.38	6.12	6.03	7.19	5.23	4.35	4.85	6.60	7.75	9.25	12.05	13.53	11.71	-15.34	2.01	0.52	4.64	4.78	10.97	11.93	9.74	7.76	7.27
	-11.14	-70.86	-4.80	0.00	0.00	0.00	0.00	-0.52	-0.17	-2.39	0.00	0.00	0.00	-60.03	-621.16	-246.16	-269.17	-302.31	-107.53	-20.48	-4.95	-29.35	-21.46	-7.59
	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	102.53	21.66	62.33	65.10	80.82	58.01	50.62	48.64	60.66	69.28	85.65	105.21	116.75	108.60	-144.79	21.51	5.67	47.22	55.74	95.29	100.74	82.39	66.63	64.55
	-2.49	-0.47	-2.97	-3.23	-3.88	-2.82	-2.27	-2.58	-2.78	-2.76	-2.64	-2.56	-2.47	-2.12	0.27	0.27	0.05	-0.18	-1.17	-3.19	-3.45	-2.86	-2.16	-1.91
	-0.59	-8.35	-0.57	0.00	0.00	0.00	0.00	-0.06	-0.02	-0.28	0.00	0.00	0.00	-7.07	-0.38	0.00	0.00	-1.28	-12.68	-2.41	-0.58	-3.46	-2.53	-0.90
	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	18.94	22.07	63.48	67.21	83.35	60.01	52.33	50.38	62.17	70.18	76.12	104.87	123.24	100.68	-140.77	20.55	5.46	44.71	42.94	71.81	83.93	92.81	64.60	29.89
	-1.89	-0.67	-1.26	-1.12	-1.35	-0.81	-0.57	-0.78	-1.25	-1.58	-1.78	-2.90	-3.32	-2.97	4.67	-0.68	-0.16	-1.42	-1.30	-1.79	-1.93	-2.25	-1.88	-1.09
	73.56	10.78	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.45	0.00	-11.24	0.00	0.00	0.00	0.00	0.00	0.00	-9.77	-14.60	-11.59	5.88	8.35
	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	124.18	85.22	75.11	73.84	91.32	65.62	56.88	56.16	69.68	81.32	97.03	119.29	132.30	174.53	371.60	234.00	236.57	311.05	155.61	127.13	120.11	120.25	94.91	79.89
	10.08	1.29	5.62	5.52	6.61	4.80	3.99	4.48	6.08	7.19	8.74	11.53	13.08	11.40	-15.18	2.06	0.53	4.71	4.75	10.77	11.60	9.37	7.37	6.80
	-9.66	-70.16	-4.75	0.00	0.00	0.00	0.00	-0.51	-0.17	-2.38	0.00	0.00	0.00	-59.49	-532.22	-210.71	-230.41	-260.21	-106.61	-20.30	-4.91	-29.09	-21.28	-7.53
	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	145.64	139.84	141.50	140.48	129.66	103.81	59.08	88.91	142.30	145.07	149.67	154.88	158.47	202.47	462.23	270.23	275.78	360.07	163.13	148.69	147.79	146.98	152.47	147.68
	14.20	1.86	8.36	8.36	10.03	7.29	5.97	6.70	8.88	10.42	12.21	15.84	17.67	15.33	-19.40	2.57	0.69	6.02	6.14	14.11	15.21	12.25	9.78	9.42
	-27.00	-124.20	-68.41	-63.79	-34.92	-35.70	-0.22	-31.04	-69.99	-62.90	-49.18	-31.28	-21.58	-83.49	-627.07	-246.43	-269.47	-307.92	-112.74	-38.52	-28.98	-52.95	-76.44	-72.70
	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	108.26	25.06	66.73	69.48	86.14	61.89	53.92	52.49	65.25	74.32	91.41	112.11	123.70	116.68	-106.61	39.81	26.13	71.99	63.09	102.68	108.07	89.34	71.73	68.55
	2.65	0.31	1.26	1.16	1.43	1.07	1.03	1.25	1.80	2.21	3.12	4.34	4.48	3.73	-5.48	0.91	0.22	1.77	1.50	3.31	3.67	2.86	2.07	1.77
	-1.18	-10.96	-0.74	0.00	0.00	0.00	0.00	-0.08	-0.03	-0.36	0.00	0.00	0.00	-9.30	-44.31	-17.67	-20.29	-24.09	-17.35	-3.31	-0.80	-4.70	-3.40	-1.21
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

MILLWD 61759	125.95	86.40	75.48	74.15	91.64	65.85	57.07	56.37	70.02	81.74	97.42	119.72	132.75	175.83	451.64	266.03	271.61	349.23	157.27	127.65	120.48	120.96	95.50	80.29
	10.48	1.35	5.92	5.82	6.93	5.03	4.17	4.69	6.42	7.58	9.13	11.95	13.53	11.78	-15.57	2.05	0.53	4.73	4.82	10.99	11.89	9.65	7.65	7.09
	-11.04	-71.27	-4.82	0.00	0.00	0.00	0.00	-0.52	-0.18	-2.41	0.00	0.00	0.00	-60.40	-612.64	-242.75	-265.46	-298.37	-108.21	-20.61	-4.98	-29.53	-21.59	-7.64
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

N.Y.C. 61761	189.73	156.69	138.40	148.24	122.25	66.61	57.73	66.31	70.81	112.21	140.15	137.32	166.69	217.37	468.61	311.02	313.15	373.01	214.81	189.97	182.94	205.35	173.47	157.05
	11.54	1.50	6.67	6.60	7.89	5.78	4.83	5.32	7.21	8.44	10.08	13.05	14.58	12.50	-15.67	2.09	0.54	4.79	4.96	11.49	12.66	10.37	8.32	7.90
	-73.76	-141.41	-66.99	-73.31	-29.65	0.00	0.00	-9.82	-0.17	-32.01	-41.79	-16.50	-32.88	-101.23	-629.73	-287.70	-306.98	-322.09	-165.61	-82.42	-66.67	-113.19	-98.89	-83.59
	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	101.16	13.33	62.99	66.84	82.99	59.80	52.20	50.34	62.12	70.04	86.35	104.49	115.31	100.11	-139.61	20.37	5.42	44.35	42.62	92.93	100.37	79.05	63.96	63.20
	-3.28	-0.45	-1.75	-1.49	-1.72	-1.02	-0.70	-0.82	-1.30	-1.71	-1.93	-3.28	-3.91	-3.53	5.83	-0.86	-0.21	-1.78	-1.62	-3.13	-3.24	-2.74	-2.29	-2.36
	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	50.00	81.38	74.62	72.52	71.99	64.64	55.91	55.11	68.11	79.92	96.58	115.55	135.00	183.31	69.16	110.88	102.54	166.85	175.58	134.90	122.22	118.23	105.00	103.49
	6.61	2.16	4.19	4.19	3.02	3.82	3.01	3.34	4.48	5.32	5.81	7.78	8.45	8.31	-10.91	1.34	0.35	3.28	3.52	4.91	5.56	6.30	5.57	2.95
	51.00	-45.71	-5.70	0.00	-22.68	0.00	0.00	-0.61	-0.21	-2.85	-13.31	0.00	-11.24	-71.36	-225.50	-88.30	-96.56	-117.44	-127.82	-66.16	-45.40	-28.45	-27.06	-61.21
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

O H 61846	10.00	25.00	58.26	61.14	76.27	54.66	47.64	45.00	55.72	63.12	70.77	95.03	120.00	135.05	-132.73	19.88	5.28	43.92	54.22	73.06	97.79	103.56	29.95	86.58
	-11.57	-3.93	-7.15	-7.19	-8.44	-6.16	-5.25	-6.24	-7.72	-8.96	-8.61	-12.74	-13.73	-12.86	12.27	-1.35	-0.35	-3.71	-4.91	-7.10	-8.68	-10.54	-9.55	-4.75
	72.82	4.59	-0.66	0.00	0.00	0.00	0.00	-0.07	-0.02	-0.33	-1.93	0.00	-18.41	-42.08	-0.44	0.00	0.00	-1.50	-14.89	-16.34	-35.22	-30.62	32.86	-52.00
	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	60.00	61.10	63.03	62.35	77.14	55.99	48.81	47.80	58.97	69.73	88.68	121.11	134.39	143.26	253.48	124.79	175.92	236.80	119.44	111.38	115.05	119.12	92.70	75.00
	2.24	0.96	-5.16	-5.98	-7.57	-4.83	-4.08	-3.74	-4.58	-3.75	2.98	6.15	7.84	-3.60	5.11	5.70	-0.23	-1.78	-2.13	3.67	3.88	4.59	3.65	1.94
	36.63	-26.61	-3.45	0.00	0.00	0.00	0.00	-0.37	-0.13	-1.73	-8.24	-8.02	-11.24	-43.21	-393.80	-10.51	-170.53	-192.45	-77.33	-43.89	-39.91	-31.05	-16.68	-33.73
	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	97.98	23.75	59.31	61.89	77.07	55.45	48.46	46.15	57.51	65.39	81.13	99.92	110.44	105.28	-137.70	20.61	5.42	45.36	57.53	90.94	95.60	79.41	64.34	62.07
	-7.23	-1.13	-6.18	-6.44	-7.63	-5.38	-4.43	-5.09	-5.94	-6.73	-7.15	-7.85	-8.78	-7.87	7.23	-0.63	-0.20	-2.47	-3.57	-8.32	-8.78	-6.98	-5.28	-4.68
	-0.78	-11.10	-0.75	0.00	0.00	0.00	0.00	-0.08	-0.03	-0.38	0.00	0.00	0.00	-9.49	-0.51	0.00	0.00	-1.70	-16.85	-3.21	-0.78	-4.60	-3.36	-1.19
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N