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 18, 2011 02:35:35 PM)
14/04/2011	8	1	34.64	17.32	45.03	Recalculated	1087.508	1043.342	-44.16
14/04/2011	8	2	31.08	15.54	40.4	Recalculated	1107.93	1056.982	-50.94
14/04/2011	9	1	25.4	12.7	33.02	Recalculated	1118.441	1064.356	-54.08
14/04/2011	9	2	32.25	16.13	41.92	Recalculated	1115.479	1057.406	-58.07
14/04/2011	10	1	27.17	13.59	35.32	Recalculated	1129.172	1069.717	-59.45
14/04/2011	10	2	32.25	16.13	41.92	Recalculated	1127.337	1089.264	-38.07
14/04/2011	11	1	47.4	23.7	61.62	Recalculated	1125.291	1103.634	-21.65
14/04/2011	11	2	51	25.5	66.3	Recalculated	1123.478	1117.697	-5.781
14/04/2011	12	1	52.4	26.2	68.12	Recalculated	1133.566	1120.17	-13.39
14/04/2011	12	2	52.4	26.2	68.12	Recalculated	1152.904	1124.774	-28.13
14/04/2011	13	1	47.4	23.7	61.62	Recalculated	1161.286	1113.36	-47.92
14/04/2011	13	2	52.4	26.2	68.12	Recalculated	1174.729	1137.276	-37.45
14/04/2011	14	1	60	30	78	Recalculated	1168.936	1138.893	-30.04
14/04/2011	14	2	52.4	26.2	68.12	Recalculated	1171.176	1128.986	-42.18
14/04/2011	15	1	51.93	25.97	67.51	Recalculated	1175.346	1131.734	-43.61
14/04/2011	15	2	58.14	29.07	75.58	Recalculated	1161.461	1141.844	-19.61
14/04/2011	16	1	58.77	29.39	76.4	Recalculated	1158.854	1148.696	-10.15
14/04/2011	16	2	58.89	29.45	76.56	Recalculated	1156.103	1125.18	-30.92
14/04/2011	17	1	47.4	23.7	61.62	Recalculated	1154.144	1106.162	-47.98
14/04/2011	17	2	52.4	26.2	68.12	Recalculated	1156.278	1127.427	-28.85
14/04/2011	18	1	60	30	78	Recalculated	1151.984	1167.537	15.553
14/04/2011	18	2	65.52	32.76	85.18	Recalculated	1154.032	1181.242	27.210
14/04/2011	19	1	54.04	27.02	70.25	Recalculated	1155.6	1151.03	-4.569
14/04/2011	19	2	43.1	21.55	56.03	Recalculated	1143.679	1110.955	-32.72
14/04/2011	20	1	35.53	17.76	46.19	Recalculated	1115.356	1072.145	-43.21
14/04/2011	20	2	25.4	12.7	33.02	Recalculated	1075.401	1037.913	-37.48
14/04/2011	21	1	27.41	13.71	35.63	Recalculated	1028.324	993.037	-35.28
14/04/2011	21	2	22.7	11.35	29.51	Recalculated	974.63	941.984	-32.64
14/04/2011	22	1	21.25	0	23.38	Recalculated	911.52	890.37	-21.14
14/04/2011	22	2	21.7	0	23.87	Recalculated	851.102	834.502	-16.60
14/04/2011	23	1	18.65	0	20.51	Recalculated	815.473	776.786	-38.68
14/04/2011	23	2	18.67	0	20.54	Recalculated	788.319	749.143	-39.17
14/04/2011	0	1	18.64	0	20.5	Recalculated	763.14	730.296	-32.84
14/04/2011	0	2	18.58	0	20.44	Recalculated	740.49	718.239	-22.25
14/04/2011	1	1	18.5	0	20.35	Recalculated	730.492	711.538	-18.95
14/04/2011	1	2	18.51	0	20.36	Recalculated	724.903	692.372	-32.53
14/04/2011	2	1	18.51	0	20.36	Recalculated	725.184	696.465	-28.71
14/04/2011	2	2	18.51	0	20.36	Recalculated	716.084	687.956	-28.12
14/04/2011	3	1	18.51	0	20.36	Recalculated	719.523	692.283	-27.24
14/04/2011	3	2	18.51	0	20.36	Recalculated	719.521	693.563	-25.95
14/04/2011	4	1	18.51	0	20.36	Recalculated	728.755	701.933	-26.82
14/04/2011	4	2	21.7	0	23.87	Recalculated	737.418	722.443	-14.97
14/04/2011	5	1	22.7	0	24.97	Recalculated	757.576	755.282	-2.293
14/04/2011	5	2	22.7	0	24.97	Recalculated	792.375	792.305	-0.070
14/04/2011	6	1	27.55	0	30.31	Recalculated	864.14	851.201	-12.93
14/04/2011	6	2	21.25	0	23.38	Recalculated	942.355	901.83	-40.52
14/04/2011	7	1	24.89	0	27.38	Recalculated	996.93	968.374	-28.55
14/04/2011	7	2	23.7	0	26.07	Recalculated	1050.972	1014.236	-36.73