History

There are two balancing prices determined by the IMO:

The Provisional Balancing Price, which is the dollar per MWh price calculated in accordance with clause 7A.3.8(b).
The Final Balancing Price, which is the dollar per MWh price calculated in accordance with clause 7A.3.10.

The balancing price for a given Trading Interval is calculated on the basis of the STEM combined supply curves of all Market Generators and the real-time effective demand for that Trading Interval.

Please note that the Balancing Quantity is calculated 2 days after the relevant trading day and is dependant on STEM trading results and system load information. The Balancing data is an estimate based on data provided by other parties at the time and may therefore be subject to change.

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Trading Day	Hour of Day	Trading Interval	MCAP Price per MWh	UDAP Price per MWh	DDAP Price per MWh	Reason Code	Scheduled System Load MWh	Relevant Quantity MWh	Balancing Quantity MWh
Administered Balancing Prices (SWIS) (Data Extraction from WEMS occurred at Jul 18, 2011 02:35:17 PM)
15/07/2011	8	1	45.71	22.86	59.42	Recalculated	1173.136	1102.404	-70.73
15/07/2011	8	2	45.71	22.86	59.42	Recalculated	1175.97	1107.851	-68.11
15/07/2011	9	1	60	30	78	Recalculated	1164.847	1119.867	-44.98
15/07/2011	9	2	73.42	36.71	95.45	Recalculated	1139.908	1130.449	-9.458
15/07/2011	10	1	63.99	32	83.19	Recalculated	1150.505	1091.076	-59.42
15/07/2011	10	2	60	30	78	Recalculated	1129.114	1083.871	-45.24
15/07/2011	11	1	60.07	30.04	78.09	Recalculated	1112.073	1072.153	-39.92
15/07/2011	11	2	60.13	30.07	78.17	Recalculated	1095.66	1063.401	-32.25
15/07/2011	12	1	60.16	30.08	78.21	Recalculated	1095.269	1056.888	-38.38
15/07/2011	12	2	63.18	31.59	82.13	Recalculated	1096.477	1055.616	-40.86
15/07/2011	13	1	63.48	31.74	82.52	Recalculated	1094.415	1063.019	-31.39
15/07/2011	13	2	63.71	31.86	82.82	Recalculated	1095.041	1046.98	-48.06
15/07/2011	14	1	60.59	30.3	78.77	Recalculated	1096.91	1036.293	-60.61
15/07/2011	14	2	57.5	28.75	74.75	Recalculated	1098.418	1027.239	-71.17
15/07/2011	15	1	57.48	28.74	74.72	Recalculated	1102.122	1026.671	-75.45
15/07/2011	15	2	57.57	28.79	74.84	Recalculated	1104.89	1022.441	-82.44
15/07/2011	16	1	45.11	22.56	58.64	Recalculated	1142.246	1034.97	-107.2
15/07/2011	16	2	51.98	25.99	67.57	Recalculated	1194.454	1073.032	-121.4
15/07/2011	17	1	56.53	28.26	73.49	Recalculated	1237.89	1115.129	-122.7
15/07/2011	17	2	69.89	34.95	90.86	Recalculated	1271.574	1214.677	-56.89
15/07/2011	18	1	74.34	37.17	96.64	Recalculated	1287.283	1249.887	-37.39
15/07/2011	18	2	71.05	35.53	92.36	Recalculated	1292.366	1228.154	-64.21
15/07/2011	19	1	62.91	31.46	81.78	Recalculated	1284.752	1206.53	-78.22
15/07/2011	19	2	55.91	27.96	72.68	Recalculated	1247.654	1175.385	-72.26
15/07/2011	20	1	51.76	25.88	67.29	Recalculated	1209.266	1137.061	-72.20
15/07/2011	20	2	51.22	25.61	66.59	Recalculated	1165.38	1107.612	-57.76
15/07/2011	21	1	55.53	27.76	72.19	Recalculated	1126.081	1078.204	-47.87
15/07/2011	21	2	65.44	32.72	85.07	Recalculated	1072.858	1034.493	-38.36
15/07/2011	22	1	43.25	0	47.58	Recalculated	991.604	982.357	-9.247
15/07/2011	22	2	44.68	0	49.15	Recalculated	934.378	935.455	1.0769
15/07/2011	23	1	63.73	0	70.1	Recalculated	879.848	881.975	2.1270
15/07/2011	23	2	66.05	0	72.66	Recalculated	828.983	845.995	17.012
15/07/2011	0	1	67.64	0	74.4	Recalculated	777.373	825.136	47.762
15/07/2011	0	2	63.15	0	69.47	Recalculated	746.355	792.271	45.915
15/07/2011	1	1	58.05	0	63.86	Recalculated	739.737	787.482	47.745
15/07/2011	1	2	50.43	0	55.47	Recalculated	739.737	766.717	26.980
15/07/2011	2	1	54.51	0	59.96	Recalculated	719.737	745.79	26.052
15/07/2011	2	2	54.34	0	59.77	Recalculated	712.64	745.968	33.327
15/07/2011	3	1	53.66	0	59.03	Recalculated	712.64	747.173	34.533
15/07/2011	3	2	52.66	0	57.93	Recalculated	707.64	750.528	42.888
15/07/2011	4	1	52.76	0	58.04	Recalculated	727.64	751.921	24.281
15/07/2011	4	2	50.62	0	55.68	Recalculated	727.64	759.408	31.768
15/07/2011	5	1	53.16	0	58.48	Recalculated	734.737	791.518	56.781
15/07/2011	5	2	53.38	0	58.72	Recalculated	749.737	805.276	55.538
15/07/2011	6	1	53.22	0	58.54	Recalculated	786.805	821.375	34.570
15/07/2011	6	2	50.14	0	55.15	Recalculated	830.042	851.695	21.653
15/07/2011	7	1	55.35	0	60.88	Recalculated	874.545	899.954	25.408
15/07/2011	7	2	56.2	0	61.82	Recalculated	928.192	942.815	14.623