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: 08/13/2003

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	43.21	47.79	37.72	39.12	42.98	36.39	37.33	52.73	52.12	52.78	56.94	65.00	100.18	196.21	121.34	43.89	53.98	80.07	71.61	63.18	75.56	65.07	53.89	52.04
	2.50	3.05	2.26	2.23	2.58	2.22	2.21	2.36	2.15	1.67	1.74	1.87	1.09	2.51	3.42	1.33	1.90	1.70	2.37	2.10	2.83	2.24	2.01	3.12
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-8.50	-69.44	-124.71	-1.52	-0.05	-1.59	-28.31	-1.58	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	39.72	43.51	34.46	35.87	39.29	33.29	34.29	49.22	49.07	50.34	54.42	54.79	35.96	80.54	115.73	42.19	50.27	52.38	67.17	60.47	71.78	62.14	51.20	47.96
	-0.99	-1.23	-1.00	-1.02	-1.10	-0.88	-0.83	-1.15	-0.89	-0.77	-0.77	-0.65	-0.31	-0.49	-0.76	-0.25	-0.27	-0.29	-0.44	-0.61	-0.95	-0.69	-0.68	-0.96
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.81	-6.62	-12.04	-0.09	0.06	-0.05	-2.61	0.04	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	43.73	47.71	37.91	39.39	43.01	36.47	37.72	54.75	54.67	56.11	60.64	66.76	89.42	189.22	248.55	282.44	255.88	172.66	74.40	66.71	79.59	68.40	56.12	52.27
	3.02	2.97	2.46	2.50	2.61	2.31	2.60	4.38	4.70	5.01	5.44	5.58	3.07	7.06	10.84	3.97	4.45	4.52	5.69	5.63	6.86	5.57	4.23	3.35
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-6.55	-56.70	-113.17	-121.31	-235.97	-200.94	-118.08	-1.06	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	40.51	44.61	35.22	36.69	40.40	34.24	35.12	49.79	49.17	50.18	54.51	54.97	36.37	81.04	116.43	43.49	52.79	54.80	70.93	60.83	72.18	62.51	51.63	49.28
	-0.20	-0.12	-0.24	-0.20	0.01	0.07	0.00	-0.58	-0.79	-0.92	-0.69	-0.49	-0.08	-0.02	0.03	0.11	0.45	0.07	0.31	-0.25	-0.55	-0.32	-0.25	0.36
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.82	-6.80	-12.07	0.00	-0.88	-1.85	-4.67	-2.97	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	40.12	44.18	34.99	36.42	39.92	33.73	34.66	44.70	48.90	49.81	50.10	52.77	28.70	50.01	113.32	41.22	56.49	48.48	65.93	59.60	71.10	56.00	50.84	48.28
	-0.60	-0.56	-0.47	-0.47	-0.48	-0.43	-0.45	-1.26	-1.06	-1.30	-1.92	-1.55	-0.88	-1.87	-3.08	-1.28	-2.20	-1.44	-1.72	-1.48	-1.63	-1.74	-1.04	-0.64
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.31	0.00	0.00	6.07	0.31	0.07	8.29	0.00	0.00	19.73	0.14	0.00	0.00	0.00	6.63	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	42.56	46.45	36.88	38.32	41.83	35.45	36.61	53.09	53.02	54.47	58.86	64.93	84.69	168.85	152.92	48.36	54.82	74.86	72.90	65.07	77.52	66.69	54.68	50.85
	1.84	1.71	1.42	1.43	1.44	1.29	1.49	2.72	3.05	3.36	3.66	3.81	2.15	4.80	7.71	2.69	3.17	3.31	4.21	3.99	4.79	3.86	2.80	1.93
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-6.48	-52.89	-95.05	-28.81	-3.17	-1.16	-21.49	-1.04	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	75.70	63.14	70.42	58.96	57.70	59.22	58.82	60.83	56.70	56.06	60.12	66.20	89.22	188.95	248.70	282.12	255.36	174.04	75.18	66.08	78.51	74.88	60.22	80.69
	3.54	3.65	3.08	3.11	3.39	3.01	3.06	5.01	5.13	4.93	4.92	5.01	2.84	6.63	11.00	3.65	3.93	3.76	4.64	4.55	5.78	4.72	3.88	3.71
	-31.45	-14.75	-31.88	-18.95	-13.92	-22.04	-20.64	-5.44	-1.61	-0.02	0.00	-6.55	-56.73	-113.32	-121.31	-235.97	-200.94	-120.22	-2.89	-0.45	0.00	-7.33	-4.46	-28.06
	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	41.22	45.40	35.97	37.39	41.00	34.67	35.61	50.66	50.34	51.38	55.44	55.18	31.73	72.58	117.24	42.75	50.79	51.00	68.05	61.55	73.35	63.27	52.21	49.58
	0.51	0.66	0.51	0.50	0.61	0.51	0.49	0.28	0.37	0.27	0.25	0.37	0.28	0.52	0.66	0.28	0.36	0.34	0.50	0.47	0.62	0.44	0.33	0.66
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-0.17	-1.81	-3.07	-0.18	0.04	0.06	-0.60	0.10	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	43.01	46.92	37.28	38.74	42.30	35.86	37.08	53.80	53.72	55.16	59.60	65.66	88.35	186.86	245.90	281.50	254.97	171.58	73.29	65.66	78.30	67.32	55.22	51.39
	2.30	2.18	1.83	1.85	1.90	1.69	1.96	3.42	3.75	4.06	4.41	4.54	2.48	5.73	9.01	3.12	3.55	3.68	4.60	4.58	5.57	4.49	3.33	2.47
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-6.48	-56.22	-112.14	-120.49	-235.88	-200.93	-117.84	-1.04	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	58.51	53.62	47.42	43.09	46.12	48.04	45.23	60.44	61.84	69.91	74.58	78.79	99.84	195.43	248.73	280.41	255.90	172.86	78.97	82.14	108.37	84.61	86.91	63.59
	3.96	4.04	3.37	3.44	3.64	3.21	3.58	5.76	6.00	6.25	6.81	6.97	3.75	8.57	12.27	4.10	4.47	4.70	6.18	6.77	8.31	6.68	5.23	4.36
	-13.83	-4.85	-8.59	-2.76	-2.09	-10.66	-6.53	-4.31	-5.87	-12.55	-12.58	-17.18	-66.44	-117.87	-120.06	-233.81	-200.94	-118.11	-5.14	-14.29	-27.33	-15.10	-29.79	-10.31
	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N

NORTH 61755	40.31	44.43	35.17	36.60	40.14	33.91	34.81	49.50	48.90	49.56	53.53	52.56	28.58	66.05	112.60	41.07	48.85	48.21	65.92	59.63	71.17	61.49	50.83	48.55
	-0.40	-0.31	-0.29	-0.29	-0.25	-0.26	-0.30	-0.87	-1.06	-1.55	-1.67	-1.80	-0.97	-2.36	-3.79	-1.43	-1.63	-1.59	-1.71	-1.45	-1.56	-1.34	-1.05	-0.37
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.27	0.10	0.59	0.00	0.00	0.00	0.26	0.03	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	42.02	46.32	36.65	38.05	41.69	35.26	36.18	48.42	51.06	41.00	43.00	43.00	43.00	43.00	43.00	46.22	46.52	44.06	43.00	61.96	32.01	32.00	36.00	45.99
	1.31	1.58	1.20	1.16	1.29	1.10	1.07	2.46	1.09	2.72	3.25	3.46	3.42	3.19	3.59	3.78	3.84	3.46	3.26	0.88	3.05	3.15	2.64	2.01
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.31	0.00	17.32	18.34	18.19	18.31	20.36	30.89	36.41	35.74	34.69	29.72	0.00	30.93	35.52	17.40	3.96
	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	34.30	37.58	29.86	31.22	34.15	28.82	29.50	42.99	42.21	43.53	47.30	47.91	33.92	74.99	103.81	29.32	29.09	30.30	34.53	52.92	62.53	54.84	44.94	41.42
	-6.41	-7.16	-5.59	-5.67	-6.24	-5.35	-5.62	-2.97	-7.76	-7.58	-7.89	-7.75	-4.21	-9.23	-13.11	-5.21	-6.34	-6.19	-8.50	-8.16	-10.20	-7.99	-6.94	-7.50
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.31	0.00	0.00	0.00	-1.03	-8.48	-15.22	-0.52	7.97	15.05	13.57	24.62	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	38.87	42.58	33.87	35.30	38.57	32.54	33.45	46.16	48.38	50.16	54.38	55.33	40.77	89.03	116.27	36.94	40.28	43.46	51.37	60.05	71.54	62.10	50.67	39.99
	-1.85	-2.16	-1.59	-1.59	-1.83	-1.63	-1.67	0.20	-1.59	-0.95	-0.82	-0.72	-0.49	-0.82	-0.84	-0.59	-0.90	-0.64	-0.98	-1.03	-1.19	-0.73	-1.21	-5.56
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.31	0.00	0.00	0.00	-1.42	-11.62	-20.86	-0.72	4.97	9.31	5.96	15.31	0.00	0.00	0.00	0.00	2.39
	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	38.57	42.19	33.53	35.11	38.39	32.37	33.12	48.00	47.53	48.96	53.18	53.77	36.92	82.55	115.75	33.93	34.39	35.35	41.31	59.90	70.65	62.14	50.81	46.61
	-2.15	-2.55	-1.92	-1.78	-2.00	-1.79	-2.00	-2.37	-2.43	-2.15	-2.01	-1.88	-1.06	-1.61	-0.64	-0.22	-0.43	-0.45	-0.76	-1.18	-2.08	-0.69	-1.07	-2.31
	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-1.02	-8.33	-15.17	0.00	8.34	15.66	14.26	25.58	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