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 17, 2012 02:35:23 PM)
15/04/2012	8	1	24.58	12.29	31.95	Recalculated	804.985	810.967	5.9819
15/04/2012	8	2	25.36	12.68	32.97	Recalculated	805.62	838.073	32.452
15/04/2012	9	1	25.5	12.75	33.15	Recalculated	806.732	855.885	49.153
15/04/2012	9	2	25.36	12.68	32.97	Recalculated	815.344	863.383	48.038
15/04/2012	10	1	25.5	12.75	33.15	Recalculated	820.005	866.658	46.653
15/04/2012	10	2	26	13	33.8	Recalculated	820.728	873.449	52.721
15/04/2012	11	1	27.71	13.86	36.02	Recalculated	821.307	882.214	60.907
15/04/2012	11	2	27.7	13.85	36.01	Recalculated	822.826	887.036	64.209
15/04/2012	12	1	27.2	13.6	35.36	Recalculated	848.03	896.263	48.233
15/04/2012	12	2	26.5	13.25	34.45	Recalculated	857.928	900.587	42.658
15/04/2012	13	1	26	13	33.8	Recalculated	864.557	898.655	34.097
15/04/2012	13	2	26	13	33.8	Recalculated	864.557	893.226	28.668
15/04/2012	14	1	26	13	33.8	Recalculated	867.702	891.899	24.197
15/04/2012	14	2	26	13	33.8	Recalculated	862.695	894.51	31.814
15/04/2012	15	1	26	13	33.8	Recalculated	861.986	897.258	35.272
15/04/2012	15	2	27.66	13.83	35.96	Recalculated	856.331	909.163	52.831
15/04/2012	16	1	27.66	13.83	35.96	Recalculated	868.107	925.907	57.800
15/04/2012	16	2	27.66	13.83	35.96	Recalculated	882.531	944.783	62.252
15/04/2012	17	1	27.66	13.83	35.96	Recalculated	896.709	962.826	66.117
15/04/2012	17	2	31.44	15.72	40.87	Recalculated	929.47	1009.753	80.283
15/04/2012	18	1	35	17.5	45.5	Recalculated	967.045	1068.07	101.02
15/04/2012	18	2	35	17.5	45.5	Recalculated	984.638	1084.378	99.739
15/04/2012	19	1	32.24	16.12	41.91	Recalculated	984.162	1048.859	64.696
15/04/2012	19	2	27.66	13.83	35.96	Recalculated	970.578	1010.3	39.721
15/04/2012	20	1	27.69	13.85	36	Recalculated	946.241	989.844	43.603
15/04/2012	20	2	27.72	13.86	36.04	Recalculated	917.23	958.228	40.997
15/04/2012	21	1	27.75	13.88	36.07	Recalculated	889.791	921.458	31.666
15/04/2012	21	2	27.72	13.86	36.04	Recalculated	852.001	888.769	36.768
15/04/2012	22	1	24.58	0	27.04	Recalculated	806.506	843.806	37.300
15/04/2012	22	2	21.7	0	23.87	Recalculated	772.169	811.786	39.616
15/04/2012	23	1	26	0	28.6	Recalculated	745.707	805.533	59.826
15/04/2012	23	2	25	0	27.5	Recalculated	723.242	779.202	55.960
15/04/2012	0	1	26	0	28.6	Recalculated	703.892	768.23	64.337
15/04/2012	0	2	27.61	0	30.37	Recalculated	687.253	760.094	72.841
15/04/2012	1	1	27.62	0	30.38	Recalculated	673.398	750.057	76.658
15/04/2012	1	2	27.62	0	30.38	Recalculated	666.691	744.834	78.142
15/04/2012	2	1	26	0	28.6	Recalculated	678.716	741.562	62.846
15/04/2012	2	2	25	0	27.5	Recalculated	685.955	741.078	55.122
15/04/2012	3	1	26	0	28.6	Recalculated	682.762	747.469	64.707
15/04/2012	3	2	25	0	27.5	Recalculated	687.841	743.142	55.301
15/04/2012	4	1	24.93	0	27.42	Recalculated	696.563	746.831	50.268
15/04/2012	4	2	24.93	0	27.42	Recalculated	714.346	763.25	48.903
15/04/2012	5	1	27.6	0	30.36	Recalculated	741.682	806.312	64.63
15/04/2012	5	2	25	0	27.5	Recalculated	783.483	852.685	69.202
15/04/2012	6	1	26	0	28.6	Recalculated	850.985	903.95	52.965
15/04/2012	6	2	25	0	27.5	Recalculated	928.799	940.747	11.947
15/04/2012	7	1	32.24	0	35.46	Recalculated	975.892	1008.323	32.430
15/04/2012	7	2	35	0	38.5	Recalculated	1016.477	1047.218	30.741