Imbalance prices

An imbalance price is applied if an imbalance is found between injections and offtakes in an Access Responsible Party’s balance area.

Imbalance price indicator and validated imbalance price
When the imbalance prices are published at the quarter-hour notice they are not yet validated and thus can only be used as an indication for the imbalance price. Only after validation of the prices, the published prices can be used for invoicing purposes.

 

New: Strategic Reserve

Important disclaimer: When a strategic reserve volume is activated that is bigger than 0 MW, the columns alpha, MIP and MDP are not used for the calculation of the imbalance prices (POS and NEG), when an activation of strategic reserve is on-going and the activated volume is bigger than 0 MW. Prices will be displayed in red during an SR activation. To understand the exact formula behind the calculus of the imbalance prices during an SR activation, please consult §6.7.2 of the Functioning Rules. 

IGCC

As of 01/10/2012, Elia participates in IGCC (International Grid Control Cooperation). The exchanged volumes and prices will be published on the page Using regulation capacity. Click here to learn more about the balancing mechanism.

 

Incompressibility

With effect from 29 June 2012 on, a downwards activation of the emergency contract at the request of Elia is reflected in the imbalance prices at the minimum of -100 €/MWh and the contractual activation price. Click here to learn more about this decision and the balancing mechanism.

History imbalance price data

Daily imbalance price data



Non validated data for 23/09/2018



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Quarter NRV (MW) SI (MW) α (€/MWh) MIP (€/MWh) MDP (€/MWh) SR (€/MWh) SI < -I C(MW) POS (€/MWh) NEG (€/MWh)
00:00 > 00:15 -272,532  320,207  1,54  85,46  37,60 36,07 37,60
00:15 > 00:30 -87,529  99,036  0,00  82,84  44,68 44,68 44,68
00:30 > 00:45 -59,327  65,567  0,00  82,84  44,68 44,68 44,68
00:45 > 01:00 -44,426  -14,444  0,00  82,84  35,09 35,09 35,09
01:00 > 01:15 -249,848  372,136  2,75  0,00  44,68 41,93 44,68
01:15 > 01:30 -141,825  146,027  2,83  0,00  44,68 41,85 44,68
01:30 > 01:45 -90,925  87,297  0,00  64,68  44,68 44,68 44,68
01:45 > 02:00 -71,886  40,485  0,00  64,68  44,68 44,68 44,68
02:00 > 02:15 1,579  35,094  0,00  64,68  39,20 64,68 64,68
02:15 > 02:30 58,324  -60,368  0,00  64,68  39,20 64,68 64,68
02:30 > 02:45 -43,965  50,300  0,00  64,68  39,20 39,20 39,20
02:45 > 03:00 -95,253  114,623  0,00  64,68  39,20 39,20 39,20
03:00 > 03:15 -40,676  28,903  0,00  64,68  37,47 37,47 37,47
03:15 > 03:30 -109,932  106,039  0,00  64,68  37,47 37,47 37,47
03:30 > 03:45 -65,058  66,453  0,00  64,68  37,47 37,47 37,47
03:45 > 04:00 -86,757  85,924  0,00  64,68  37,47 37,47 37,47
04:00 > 04:15 64,262  -110,733  0,00  64,68  42,74 64,68 64,68
04:15 > 04:30 -9,399  -46,358  0,00  64,68  42,74 42,74 42,74
04:30 > 04:45 68,578  -59,018  0,00  64,68  42,74 64,68 64,68
04:45 > 05:00 -51,186  59,995  0,00  64,68  42,74 42,74 42,74
05:00 > 05:15 -82,218  64,920  0,00  64,68  41,61 41,61 41,61
05:15 > 05:30 -58,451  55,223  0,00  64,68  41,61 41,61 41,61
05:30 > 05:45 -45,626  35,440  0,00  64,68  41,61 41,61 41,61
05:45 > 06:00 -31,171  3,838  0,00  64,68  41,61 41,61 41,61
06:00 > 06:15 -234,247  302,147  0,91  0,00  36,09 35,18 36,09
06:15 > 06:30 -179,643  172,915  1,14  0,00  36,09 34,95 36,09
06:30 > 06:45 -144,820  128,892  0,00  64,68  36,09 36,09 36,09
06:45 > 07:00 -42,071  8,881  0,00  64,68  36,09 36,09 36,09
07:00 > 07:15 -76,490  90,677  0,00  64,68  43,14 43,14 43,14
07:15 > 07:30 -19,899  77,822  0,00  64,68  43,14 43,14 43,14
07:30 > 07:45 -121,709  117,235  0,00  64,68  43,14 43,14 43,14
07:45 > 08:00 -120,760  103,091  0,00  64,68  43,14 43,14 43,14
08:00 > 08:15 -176,213  197,749  1,04  0,00  44,68 43,64 44,68
08:15 > 08:30 -127,628  125,734  0,00  64,68  44,68 44,68 44,68
08:30 > 08:45 40,694  -56,243  0,00  64,68  44,68 64,68 64,68
08:45 > 09:00 31,649  -29,182  0,00  64,68  44,68 64,68 64,68
09:00 > 09:15 -25,483  17,942  0,00  64,68  44,68 44,68 44,68
09:15 > 09:30 3,219  -15,619  0,00  64,68  44,68 64,68 64,68
09:30 > 09:45 -39,490  32,355  0,00  64,68  44,68 44,68 44,68
09:45 > 10:00 -9,599  27,799  0,00  64,68  44,68 44,68 44,68
10:00 > 10:15 132,948  -152,437  0,38  93,77  21,23 93,77 94,15
10:15 > 10:30 47,042  -99,604  0,00  93,77  21,23 93,77 93,77
10:30 > 10:45 137,665  -149,197  0,49  93,77  0,00 93,77 94,26
10:45 > 11:00 114,699  -140,578  0,65  93,77  0,00 93,77 94,42
11:00 > 11:15 197,596  -298,694  1,39  261,43  0,00 261,43 262,82
11:15 > 11:30 252,932  -274,880  2,01  261,43  29,00 261,43 263,44
11:30 > 11:45 285,345  -320,987  2,86  261,43  0,00 261,43 264,29
11:45 > 12:00 231,678  -231,892  3,31  261,43  29,00 261,43 264,74
12:00 > 12:15 193,535  -259,153  3,67  261,43  44,68 261,43 265,10
12:15 > 12:30 231,589  -257,455  4,14  261,43  44,68 261,43 265,57
12:30 > 12:45 91,486  -120,276  0,00  261,43  44,68 261,43 261,43
12:45 > 13:00 41,275  -30,982  0,00  261,43  44,68 261,43 261,43
13:00 > 13:15 158,198  -208,496  3,54  261,43  44,68 261,43 264,97
13:15 > 13:30 -38,840  29,436  0,00  261,43  44,68 44,68 44,68
13:30 > 13:45 -249,051  361,065  3,14  0,00  44,68 41,54 44,68
13:45 > 14:00 -275,834  501,123  4,79  0,00  44,68 39,89 44,68
14:00 > 14:15 -371,621  514,868  6,44  0,00  39,21 32,77 39,21
14:15 > 14:30 -422,345  456,767  7,62  0,00  0,00 -7,62 0,00
14:30 > 14:45 -366,277  372,529  8,66  0,00  0,00 -8,66 0,00
14:45 > 15:00 -463,401  512,155  10,84  0,00  0,00 -10,84 0,00
15:00 > 15:15 -274,031  268,848  11,08  0,00  -99,00 -110,08 -99,00
15:15 > 15:30 -156,242  170,359  11,31  64,68  -99,00 -110,31 -99,00
15:30 > 15:45 -179,008  168,979  10,46  64,68  -99,00 -109,46 -99,00
15:45 > 16:00 -94,154  150,199  8,56  64,68  41,77 33,21 41,77
16:00 > 16:15 -86,048  47,972  0,00  64,68  37,84 37,84 37,84
16:15 > 16:30 -98,487  84,055  0,00  64,68  37,84 37,84 37,84
16:30 > 16:45 46,962  -55,241  0,00  64,68  37,84 64,68 64,68
16:45 > 17:00 176,836  -244,660  1,87  64,68  37,84 64,68 66,55
17:00 > 17:15 239,043  -334,781  2,20  64,68  0,00 64,68 66,88
17:15 > 17:30 348,180  -432,731  3,52  124,88  0,00 124,88 128,40
17:30 > 17:45 316,914  -380,533  4,49  124,88  41,17 124,88 129,37
17:45 > 18:00 252,380  -259,310  4,86  124,88  41,17 124,88 129,74
18:00 > 18:15 138,713  -113,833  0,00  124,88  44,68 124,88 124,88
18:15 > 18:30 -172,020  201,793  5,23  124,88  44,68 39,45 44,68
18:30 > 18:45 -275,015  302,759  5,97  0,00  44,68 38,71 44,68
18:45 > 19:00 -242,876  212,572  5,85  64,68  44,68 38,83 44,68
19:00 > 19:15 -120,838  115,887  0,00  84,67  23,70 23,70 23,70
19:15 > 19:30 -94,573  84,038  0,00  85,67  22,00 22,00 22,00
19:30 > 19:45 -84,814  27,393  0,00  89,55  15,45 15,45 15,45
19:45 > 20:00 106,670  -203,219  2,11  93,57  8,68 93,57 95,68
20:00 > 20:15 -95,025  114,105  0,00  95,35  7,61 7,61 7,61
20:15 > 20:30 -4,069  -2,748  0,00  96,24  4,92 4,92 4,92
20:30 > 20:45 -82,619  125,760  0,00  96,24  4,92 4,92 4,92
20:45 > 21:00 -13,068  6,880  0,00  96,24  4,92 4,92 4,92
21:00 > 21:15 122,856  -188,316  0,95  95,89  0,00 95,89 96,83
21:15 > 21:30 -19,688  43,870  0,00  95,89  4,92 4,92 4,92
21:30 > 21:45 -55,019  98,711  0,00  94,42  7,64 7,64 7,64
21:45 > 22:00 -76,098  13,666  0,00  94,44  7,61 7,61 7,61
22:00 > 22:15 117,902  -326,980  1,42  96,39  0,00 96,39 97,81

Explanation

Using nominations and measurement data, Elia monitors all access responsible parties (ARPs) to make sure they comply with their quarter-hourly balance obligation.

A tariff for balancing energy (or ‘imbalance price’) is applied when an imbalance between injections and offtakes is found in an ARP’s balance area. Click here for more information on the calculation of imbalance prices.

Abbreviations

NRV (Net Regulation Volume)

the net regulation volume is calculated for each quarter-hour using the difference between the sum of the volumes of all upward regulations and the sum of the volumes of all downward regulations requested by Elia

SI (System Imbalance)

the system imbalance is calculated for each quarter-hour using the difference between the Area Control Error (ACE) and the NRV

α

additional incentive applied on top of the regulation costs in cases of major system imbalances.

MIP

the highest price paid by Elia for upward regulation during the quarter-hour in question

MDP

the lowest price received by Elia for downward regulation during the quarter-hour in question

POS

tariff applicable for a positive imbalance

NEG

tariff applicable for a negative imbalance

SR

Strategic Reserve price when there is an volume of Strategic Reserve activated in the system >= 0MW

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