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 Apr 19, 2012 02:54:48 PM)
17/04/2012	8	1	27.2	13.6	35.36	Recalculated	988.869	1016.48	27.610
17/04/2012	8	2	29.9	14.95	38.87	Recalculated	1009.345	1034.907	25.561
17/04/2012	9	1	29.9	14.95	38.87	Recalculated	1019.977	1043.027	23.050
17/04/2012	9	2	29.9	14.95	38.87	Recalculated	1022.978	1045.398	22.419
17/04/2012	10	1	29.9	14.95	38.87	Recalculated	1022.977	1040.066	17.089
17/04/2012	10	2	45	22.5	58.5	Recalculated	1025.493	1048.105	22.612
17/04/2012	11	1	33.18	16.59	43.13	Recalculated	1033.786	1056.765	22.979
17/04/2012	11	2	31.57	15.79	41.04	Recalculated	1046.152	1051.047	4.8949
17/04/2012	12	1	29.9	14.95	38.87	Recalculated	1046.911	1045.034	-1.876
17/04/2012	12	2	31.57	15.79	41.04	Recalculated	1066.85	1046.738	-20.11
17/04/2012	13	1	29.9	14.95	38.87	Recalculated	1082.448	1047.268	-35.18
17/04/2012	13	2	29.9	14.95	38.87	Recalculated	1087.727	1054.118	-33.60
17/04/2012	14	1	29.9	14.95	38.87	Recalculated	1098.544	1054.073	-44.47
17/04/2012	14	2	27	13.5	35.1	Recalculated	1095.25	1038.582	-56.66
17/04/2012	15	1	23.3	11.65	30.29	Recalculated	1096.262	1006.38	-89.88
17/04/2012	15	2	24.1	12.05	31.33	Recalculated	1091.432	998.877	-92.55
17/04/2012	16	1	29.9	14.95	38.87	Recalculated	1097.292	1047.712	-49.57
17/04/2012	16	2	33.18	16.59	43.13	Recalculated	1095.856	1072.899	-22.95
17/04/2012	17	1	40.33	20.17	52.43	Recalculated	1099.521	1092.489	-7.031
17/04/2012	17	2	38.98	19.49	50.67	Recalculated	1100.313	1111.941	11.627
17/04/2012	18	1	60.1	30.05	78.13	Recalculated	1104.789	1141.494	36.704
17/04/2012	18	2	67.85	33.92	88.2	Recalculated	1109.3	1152.261	42.961
17/04/2012	19	1	63	31.5	81.9	Recalculated	1098.28	1120.247	21.967
17/04/2012	19	2	63	31.5	81.9	Recalculated	1071.197	1094.516	23.319
17/04/2012	20	1	33.18	16.59	43.13	Recalculated	1035.722	1037.924	2.2019
17/04/2012	20	2	27	13.5	35.1	Recalculated	1001.424	994.311	-7.112
17/04/2012	21	1	22.4	11.2	29.12	Recalculated	959.18	934.845	-24.33
17/04/2012	21	2	17.38	8.69	22.59	Recalculated	898.31	882.155	-16.15
17/04/2012	22	1	57.83	0	63.61	Recalculated	823.148	890.856	67.707
17/04/2012	22	2	33.18	0	36.5	Recalculated	782.942	829.733	46.790
17/04/2012	23	1	17.32	0	19.05	Recalculated	746.334	772.779	26.445
17/04/2012	23	2	17.32	0	19.05	Recalculated	719.493	745.464	25.971
17/04/2012	0	1	17.36	0	19.1	Recalculated	693.82	717.52	23.699
17/04/2012	0	2	17.38	0	19.12	Recalculated	676.087	705.895	29.807
17/04/2012	1	1	17.44	0	19.18	Recalculated	661.257	699.678	38.421
17/04/2012	1	2	21.1	0	23.21	Recalculated	651.699	697.322	45.623
17/04/2012	2	1	21.51	0	23.66	Recalculated	652.021	705.771	53.75
17/04/2012	2	2	21.51	0	23.66	Recalculated	652.714	705.777	53.062
17/04/2012	3	1	21.51	0	23.66	Recalculated	649.876	698.728	48.851
17/04/2012	3	2	17.43	0	19.17	Recalculated	651.662	691.774	40.111
17/04/2012	4	1	17.44	0	19.18	Recalculated	645.148	700.029	54.880
17/04/2012	4	2	17.44	0	19.18	Recalculated	661.258	715.142	53.884
17/04/2012	5	1	24.1	0	26.51	Recalculated	685.26	756.933	71.673
17/04/2012	5	2	21.51	0	23.66	Recalculated	724.46	787.904	63.443
17/04/2012	6	1	23.8	0	26.18	Recalculated	785.068	844.502	59.433
17/04/2012	6	2	22.6	0	24.86	Recalculated	855.246	875.495	20.249
17/04/2012	7	1	25.5	0	28.05	Recalculated	915.914	938.264	22.350
17/04/2012	7	2	33.18	0	36.5	Recalculated	958.32	986.379	28.058