Ancillary Services: Volumes & Prices

Every year Elia evaluates and determines the volume of primary, secondary and tertiary control power to be sourced which contributes to guaranteeing the safety, reliability and efficiency of the transmission grid in the control area. The evaluation methods and the results are presented to and approved by the CREG.

The table below shows the required volume for the ancillary services. The volumes are purchased via both long and short-term tenders as shown in the tables below. A summary of the prices of the selected offers can be found below.

The primary and secondary control volumes are purchased via a weekly procurement process, while the remaining tertiary control volume is purchased via a monthly purchasing cycle.
 

Required total volumes of ancillary services:

  Required total volumes for year 2018 [MW]
Primary Frequency Control (0s - 30s)
   R1 – symmetrical – 200mHz
81 MW
Secondary Frequency Control (30s – 15min)
   R2 – symmetrical
139 MW

Tertiary Frequency Control (15min)
R3 Standard + Flex

830 MW*

* min 300 MW R3 Standard

 

Contracted long-term volumes & prices of ancillary services (year-ahead procurement) *:

Tendering & Contracting Period Delivery Period  Reserve Type Reserve Product  Total Contracted
Volume [MW]
Average Price [€/Mw/h] Tariff Period [PEAK/L-OFFPEAK/BASE] Symmetry Type  Generation/
Load type
 
December 2016
 
year 2017
 
ICH
 
ICH
155  
1,81
BASE
ASYM-UP

Load
45 LONG-OFFPEAK
 
December 2015
 
year 2016
R3 R3-prod 302,00 5,16 BASE  ASYM-UP Generation 
R3-DP 209,00 3,14 BASE  ASYM-UP Both
1 PEAK
 
December 2015
 
year 2016
 
ICH
 
ICH
178 1,58 BASE  ASYM-UP  Load
11
LONG-OFFPEAK
10 PEAK
December 2014  year 2015 R3  R3-prod 340,00 4,66 BASE ASYM-UP Generation
December 2014 year 2015 R3-DP 60,00 3,07 BASE ASYM-UP Both
December 2014 year 2015  ICH ICH 261,12 1,41  BASE ASYM-UP Load
June 2013 year 2014 R1 R1-200mHz 28,00 40 – 50 * BASE SYM Generation
June 2013 year 2014 R1-down 27,00 2 – 3 * BASE ASYM-DOWN Generation
June 2013 year 2014 R1-load 27,00 5 – 6 * BASE ASYM-UP Load
June 2013 year 2014 R2 R2-up 120,00 20 – 25 * BASE ASYM-UP Generation
June 2013 year 2014 R2-down 120,00 20 – 25 * BASE ASYM-DOWN Generation
June 2013 year 2014 R3 R3-prod 350,00 5 – 6 * BASE ASYM-UP Generation
October 2013 year 2014 R3-DP 50,00 3,38 BASE ASYM-UP Both
October 2013 year 2014 ICH ICH 261,66 1,41 BASE ASYM-UP Load
  • Average price: this is calculated as the weighted average for all selected bids for the respective reserve product & delivery period; taking into account the tariff period if needed.

(*) Some of the prices of the offered or even retained volumes could be outside of this indicative price range, but the average price of the overall selection is always included in this indicative price range.

As a general rule, minimally the required & approved volumes should be contracted at lowest total cost. For more detailed information on the selection rules of the different products, cfr. the balancing rules document which is accessible through.

 

Contracted short-term volumes & prices of ancillary services

Following volumes are purchased via short-term auctions:

  • R1 - 200 mHz reaction = 81 MW in BASE
  • R2 = R2-up-down = 139 MW in BASE
  • R3-Standard + R3-Flex = 830 MW in BASE

 

The short term purchases of the primary control volume are procured sequentially: The first auction is organized via the local procurement platform STAR while the second auction is organized via the regional procurement platform Regelleistung.net.

The short-term purchases of the secondary and tertiary control volume are exclusively organized via the local procurement platform STAR.

For more information about short-term purchases and the auction calendar, please refer to the page STAR (Short Term Auctioning or Reserves).

Primary and secondary reserve




Tendering Period Delivery Period Reserve Type Service Type Total Contracted Volume[MW] Average Price[€/Mw/h] Forecasted Average Price[€/Mw/h] Total Offered Volume[MW] Tariff Period[PEAK/ L-OFFPEAK/ BASE] Symmetry Type Country
W29 2018 W31 2018 R1 Upward 7,0 1,22 20,0 BASE ASYM Upward BE
W29 2018 W31 2018 R1 Symmetric100 7,0 24,49 43,0 BASE SYM BE
W30 2018 W31 2018 R1 Symmetric200 42,0 10,52 10,15 56,0 BASE SYM FCR Common Auction
W29 2018 W31 2018 R1 Symmetric200 25,0 10,14 75,0 BASE SYM BE
W29 2018 W31 2018 R1 Downward 7,0 0,50 21,0 BASE ASYM Downward BE
W29 2018 W31 2018 R2 Upward 144,0 8,76 322,0 BASE ASYM Upward BE
W29 2018 W31 2018 R2 Downward 144,0 8,76 322,0 BASE ASYM Downward BE
W30 2018 W32 2018 R1 Symmetric100 13,0 24,26 43,0 BASE SYM BE
W31 2018 W32 2018 R1 Symmetric200 28,0 11,64 10,52 56,0 BASE SYM FCR Common Auction
W30 2018 W32 2018 R1 Symmetric200 27,0 10,51 77,0 BASE SYM BE
W30 2018 W32 2018 R1 Downward 13,0 1,33 20,0 BASE ASYM Downward BE
W30 2018 W32 2018 R1 Upward 13,0 1,20 20,0 BASE ASYM Upward BE
W30 2018 W32 2018 R2 Downward 139,0 10,11 322,0 BASE ASYM Downward BE
W30 2018 W32 2018 R2 Upward 139,0 10,11 322,0 BASE ASYM Upward BE
W31 2018 W33 2018 R1 Downward 14,0 1,29 20,0 BASE ASYM Downward BE
W31 2018 W33 2018 R1 Upward 14,0 1,20 20,0 BASE ASYM Upward BE
W31 2018 W33 2018 R1 Symmetric200 30,0 11,63 64,0 BASE SYM BE
W31 2018 W33 2018 R1 Symmetric100 14,0 25,74 27,0 BASE SYM BE
W32 2018 W33 2018 R1 Symmetric200 23,0 12,34 11,64 56,0 BASE SYM FCR Common Auction
W31 2018 W33 2018 R2 Downward 139,0 10,75 287,0 BASE ASYM Downward BE
W31 2018 W33 2018 R2 Upward 139,0 10,75 287,0 BASE ASYM Upward BE
W32 2018 W34 2018 R1 Symmetric200 30,0 12,33 78,0 BASE SYM BE
W32 2018 W34 2018 R1 Upward 4,0 1,20 20,0 BASE ASYM Upward BE
W33 2018 W34 2018 R1 Symmetric200 49,0 12,43 12,34 56,0 BASE SYM FCR Common Auction
W32 2018 W34 2018 R1 Symmetric100 1,0 17,94 43,0 BASE SYM BE
W32 2018 W34 2018 R1 Downward 1,0 0,38 20,0 BASE ASYM Downward BE
W32 2018 W34 2018 R2 Upward 139,0 13,44 287,0 BASE ASYM Upward BE
W32 2018 W34 2018 R2 Downward 139,0 13,44 287,0 BASE ASYM Downward BE
W33 2018 W35 2018 R1 Downward 1,0 0,37 20,0 BASE ASYM Downward BE
W33 2018 W35 2018 R1 Symmetric200 30,0 12,42 78,0 BASE SYM BE
W33 2018 W35 2018 R1 Symmetric100 1,0 17,78 43,0 BASE SYM BE
W34 2018 W35 2018 R1 Symmetric200 49,0 12,43 56,0 BASE SYM FCR Common Auction
W33 2018 W35 2018 R1 Upward 4,0 1,20 20,0 BASE ASYM Upward BE
W33 2018 W35 2018 R2 Upward 143,0 11,99 287,0 BASE ASYM Upward BE
W33 2018 W35 2018 R2 Downward 143,0 11,99 287,0 BASE ASYM Downward BE
  • Average price: This is the weighted average price for all selected bids taking into account the tariff period for the respective reserve product and delivery period;
  • The column ‘Total offered volume’ shows the sum of the total offered volume for the tariff period ‘BASE’ and for all countries offering the service type and it not related to the columns ‘Tariff period’ and ‘Country’. The columns ‘Tariff period’ and ‘Country’ indicate the corresponding information of the retained offers.
  • In order to define the contracted volume via the regional procurement platform, an estimated average price is used to calculate the optimal selection. This estimated average price is the latest available average price of the regional auction platform at gate closure time of the local platform STAR.

Tertiary reserve

Tendering Period Delivery Period Reserve Type Reserve Product Total Contracted Volume[MW] Average Price[€/Mw/h] Total Offered Volume[MW] Tariff Period[PEAK/ L-OFFPEAK/ BASE] Symmetry Type
December 2017 January 2018 R3 Standard 392,0 5,80 533,0 BASE ASYM-UP
December 2017 January 2018 R3 Flex 438,0 3,79 769,0 BASE ASYM-UP
January 2018 February 2018 R3 Standard 425,0 5,40 561,0 BASE ASYM-UP
January 2018 February 2018 R3 Flex 405,0 3,93 739,0 BASE ASYM-UP
February 2018 March 2018 R3 Flex 376,0 3,71 804,0 BASE ASYM-UP
February 2018 March 2018 R3 Standard 454,0 4,71 677,0 BASE ASYM-UP
March 2018 April 2018 R3 Flex 392,0 3,49 701,0 BASE ASYM-UP
March 2018 April 2018 R3 Standard 438,0 4,45 455,0 BASE ASYM-UP
April 2018 May 2018 R3 Standard 336,0 4,38 683,0 BASE ASYM-UP
April 2018 May 2018 R3 Flex 494,0 3,31 897,0 BASE ASYM-UP
May 2018 June 2018 R3 Standard 465,0 3,47 697,0 BASE ASYM-UP
May 2018 June 2018 R3 Flex 365,0 3,06 792,0 BASE ASYM-UP
June 2018 July 2018 R3 Standard 554,0 3,18 777,0 BASE ASYM-UP
June 2018 July 2018 R3 Flex 276,0 2,82 992,0 BASE ASYM-UP
July 2018 August 2018 R3 Standard 570,0 2,70 757,0 BASE ASYM-UP
July 2018 August 2018 R3 Flex 260,0 2,43 983,0 BASE ASYM-UP
August 2018 September 2018 R3 Flex 420,0 2,29 707,0 BASE ASYM-UP
August 2018 September 2018 R3 Standard 410,0 6,12 527,0 BASE ASYM-UP

   

  • Average price: This is the weighted average price for all selected bids taking into account the tariff period for the respective reserve product and delivery period;
  • The column ‘Total offered volume’ shows the sum of the total offered volume for the tariff period ‘BASE’ and is not related to the columns ‘Tariff period’. The column ‘Tariff period’ indicates the corresponding information of the retained offers.
  • In order to define the contracted volume via the regional procurement platform, an estimated average price is used to calculate the optimal selection. This estimated average price is the latest available average price of the regional auction platform at gate closure time of the local platform STAR.