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 05, 2012 02:35:12 PM)
03/04/2012	8	1	48.46	24.23	63	Recalculated	1042.541	1102.664	60.123
03/04/2012	8	2	37.92	18.96	49.3	Recalculated	1064.902	1094.832	29.930
03/04/2012	9	1	48.46	24.23	63	Recalculated	1077.862	1109.498	31.635
03/04/2012	9	2	48.46	24.23	63	Recalculated	1085.172	1105.704	20.531
03/04/2012	10	1	29.9	14.95	38.87	Recalculated	1099.2	1100.356	1.1559
03/04/2012	10	2	27.59	13.8	35.87	Recalculated	1110.386	1087.456	-22.93
03/04/2012	11	1	27.59	13.8	35.87	Recalculated	1123.379	1078.521	-44.85
03/04/2012	11	2	27.59	13.8	35.87	Recalculated	1136.57	1076.041	-60.52
03/04/2012	12	1	29.9	14.95	38.87	Recalculated	1147.494	1082.957	-64.53
03/04/2012	12	2	32	16	41.6	Recalculated	1160.059	1107.12	-52.93
03/04/2012	13	1	36.85	18.42	47.9	Recalculated	1176.227	1114.873	-61.35
03/04/2012	13	2	43.31	21.66	56.3	Recalculated	1178.897	1126.392	-52.50
03/04/2012	14	1	32	16	41.6	Recalculated	1191.146	1119.818	-71.32
03/04/2012	14	2	47.72	23.86	62.04	Recalculated	1195.024	1135.437	-59.58
03/04/2012	15	1	31	15.5	40.3	Recalculated	1207.443	1125.987	-81.45
03/04/2012	15	2	31	15.5	40.3	Recalculated	1208.408	1128.227	-80.18
03/04/2012	16	1	31.25	15.63	40.63	Recalculated	1210.719	1132.731	-77.98
03/04/2012	16	2	35	17.5	45.5	Recalculated	1202.891	1125.54	-77.35
03/04/2012	17	1	32	16	41.6	Recalculated	1201.487	1136.869	-64.61
03/04/2012	17	2	46.89	23.45	60.96	Recalculated	1198.414	1159.63	-38.78
03/04/2012	18	1	63	31.5	81.9	Recalculated	1194.063	1200.869	6.8059
03/04/2012	18	2	58.13	29.07	75.57	Recalculated	1179.284	1231.555	52.270
03/04/2012	19	1	51.64	25.82	67.13	Recalculated	1155.6	1201.585	45.985
03/04/2012	19	2	41.79	20.9	54.33	Recalculated	1129.744	1154.519	24.775
03/04/2012	20	1	35	17.5	45.5	Recalculated	1095.057	1100.087	5.0299
03/04/2012	20	2	29.9	14.95	38.87	Recalculated	1061.544	1062.262	0.7179
03/04/2012	21	1	27.75	13.88	36.07	Recalculated	1021.617	1021.818	0.2010
03/04/2012	21	2	24.2	12.1	31.46	Recalculated	972.966	962.741	-10.22
03/04/2012	22	1	27.75	0	30.53	Recalculated	874.961	904.706	29.745
03/04/2012	22	2	23.2	0	25.52	Recalculated	839.375	874.407	35.032
03/04/2012	23	1	24.99	0	27.49	Recalculated	797.603	853.293	55.690
03/04/2012	23	2	23.8	0	26.18	Recalculated	772.741	818.318	45.577
03/04/2012	0	1	23	0	25.3	Recalculated	747.04	792.784	45.744
03/04/2012	0	2	23	0	25.3	Recalculated	730.783	772.536	41.752
03/04/2012	1	1	21.7	0	23.87	Recalculated	715.325	743.206	27.880
03/04/2012	1	2	22	0	24.2	Recalculated	701.453	732.352	30.899
03/04/2012	2	1	22.6	0	24.86	Recalculated	695.65	731.681	36.031
03/04/2012	2	2	21.7	0	23.87	Recalculated	697.081	726.342	29.260
03/04/2012	3	1	22.6	0	24.86	Recalculated	698.323	735.344	37.021
03/04/2012	3	2	22	0	24.2	Recalculated	705.898	735.408	29.509
03/04/2012	4	1	22.6	0	24.86	Recalculated	720.201	758.451	38.25
03/04/2012	4	2	23	0	25.3	Recalculated	740.056	784.635	44.578
03/04/2012	5	1	22	0	24.2	Recalculated	772.585	829.42	56.834
03/04/2012	5	2	21.7	0	23.87	Recalculated	813.324	876.092	62.768
03/04/2012	6	1	22.5	0	24.75	Recalculated	894.902	938.253	43.351
03/04/2012	6	2	24.2	0	26.62	Recalculated	984.132	993.365	9.2330
03/04/2012	7	1	34.89	0	38.38	Recalculated	1019.794	1078.406	58.611
03/04/2012	7	2	33.2	0	36.52	Recalculated	1088.847	1103.556	14.709