Article 20.2 Calculation of Balancing Capacity Remuneration

For each Balancing Service Entity and for each Imbalance Settlement Period, remuneration for the upward and downward Balancing Capacity supplied for FCR, aFRR and mFRR shall be calculated taking into account upward or downward Balancing Capacity supplied together with the price of the respective Balancing Capacity Offer steps that were validated on the basis of the last execution of the ISP, the resolution time horizon of which includes the specific Imbalance Settlement Period.

The remuneration of a Balancing Service Entity e, for Balancing Capacity supplied for upward and downward FCR, aFRR, and mFRR in an Imbalance Settlement Period t, shall be similarly calculated as follows:
$F C R C_{e, t}^{u p} = \sum_{s}^{} \sum_{a s}^{} (F C R Q_{e, a s, t}^{u p} \times O P_{e, s, t}^{F C R, u p}) \times T_{e, t}^{F C R, u p}$
$F C R C_{e, t}^{d n} = \sum_{s}^{} \sum_{a s}^{} (F C R Q_{e, a s, t}^{d n} \times O P_{e, s, t}^{F C R, d n}) \times T_{e, t}^{F C R, d n}$
$m F R R C_{e, t}^{u p} = \sum_{s}^{} \sum_{a s}^{} (m F R R Q_{e, a s, t}^{u p} \times O P_{e, s, t}^{m F R R, u p}) \times T_{e, t}^{m F R R, u p}$
$m F R R C_{e, t}^{d n} = \sum_{s}^{} \sum_{a s}^{} (m F R R Q_{e, a s, t}^{d n} \times O P_{e, s, t}^{m F R R, d n}) \times T_{e, t}^{m F R R, d n}$
$a F R R C_{e, t}^{u p} = \sum_{s}^{} \sum_{a s}^{} (a F R R Q_{e, a s, t}^{u p} \times O P_{e, s, t}^{a F R R, u p}) \times T_{e, t}^{α F R R, u p}$
$a F R R C_{e, t}^{d n} = \sum_{s}^{} \sum_{a s}^{} (a F R R Q_{e, a s, t}^{d n} \times O P_{e, s, t}^{a F R R, d n}) \times T_{e, t}^{α F R R, d n}$

where:

$F C R C_{e, t}^{u p}$	the remuneration in € of a Balancing Services Entity e for upward FCR Balancing Capacity supplied in the Imbalance Settlement Period t.
$F C R C_{e, t}^{d n}$	the remuneration in € of a Balancing Services Entity e for downward FCR Balancing Capacity supplied during the Imbalance Settlement Period t.
$T_{e, t}^{F C R, u p}$	the percentage of a time period within an Imbalance Settlement Period t when the Balancing Service Entity e was available for the provision of upward FCR in real time.
$T_{e, t}^{F C R, d n}$	the percentage of time in an Imbalance Settlement Period tduring which the Balancing Service Entity e was available for the provision of downward FCR in real time.
$m F R R C_{e, t}^{u p}$	the remuneration in € of a Balancing Services Entity e for upward mFRR Balancing Capacity supplied in the Imbalance Settlement Period t.
$m F R R C_{e, t}^{d n}$	the remuneration in € of a Balancing Services Entity e for downward mFRR Balancing Capacity supplied during the Imbalance Settlement Period t.
$T_{e, t}^{m F R R, u p}$	the percentage of time within an Imbalance Settlement Period t when the Balancing Service Entity e was available for the provision of upward mFRR in real time.
$T_{e, t}^{m F R R, d n}$	the percentage of time in an Imbalance Settlement Period t,during which the Balancing Services Entity e was available for the provision of downward mFRR in real-time.
$a F R R C_{e, t}^{u p}$	the remuneration in € of the Balancing Services Entity e for upward aFRR Balancing Capacity supplied in the Imbalance Settlement Period t.
$a F R R C_{e, t}^{d n}$	the remuneration in € of the Balancing Services Entity e for downward aFRR Balancing Capacity supplied in the Imbalance Settlement Period t.
$T_{e, t}^{α F R R, u p}$	the percentage of time within an Imbalance Settlement Period t when the Balancing Service Entity e was available for the provision of upward aFRR in real time.
$T_{e, t}^{α F R R, d n}$	the percentage of time in an Imbalance Settlement Period t,during which the Balancing Services Entity e, was available for the provision of downward mFRR in real-time.
$O P_{e, s, t}^{F C R, u p}$	the price in €/MW-hour of step s of the upward Balancing Capacity Offer for FCR of a Balancing Service Entity e that has been validated on the basis of the last execution of the ISP, whose solution timeframe shall include that specific Imbalance Settlement Period t,
$O P_{e, s, t}^{F C R, d n}$	the price in €/MW-hour of step s of the downward Balancing Capacity Offer for FCR of a Balancing Service Entity e that has been validated on the basis of the last execution of the ISP, whose solution timeframe shall include that specific Imbalance Settlement Period t.
$O P_{e, s, t}^{a F R R, u p}$	the price in €/MW-hour of step s of an upward Balancing Capacity Offer for aFRR from a Balancing Service Entity e validated on the basis of the last execution of the ISP, the resolution time horizon of which includes the specific Imbalance Settlement Period t.
$O P_{e, s, t}^{a F R R, d n}$	the price in €/MW-hour of step s of a downward Balancing Capacity Offer for aFRR from a Balancing Service Entity e validated on the basis of the last execution of the ISP, the resolution time horizon of which includes the specific Imbalance Settlement Period t.
$O P_{e, s, t}^{m F R R, u p}$	the price in €/MW-hour of the step s of an upward Balancing Capacity Offer for mFRR from a Balancing Service Entity e validated on the basis of the last execution of the ISP, the resolution time horizon of which includes the specific Imbalance Settlement Period t.
$O P_{e, s, t}^{m F R R, d n}$	the price in €/MW-hour of step s of a downward Balancing Capacity Offer for mFRR from a Balancing Service Entity e validated on the basis of the last execution of the ISP, the resolution time horizon of which includes the specific Imbalance Settlement Period t.

The total remuneration of all Balancing Service Entities e for the Balancing Capacity supplied for upward and downward FCR, aFRR, and mFRR during an Imbalance Settlement Period t, shall be calculated as follows:
$B A L C A P_{t} = \sum_{e} F C R C_{e, t}^{u p} + \sum_{e} F C R C_{e, t}^{d n} + \sum_{e} m F R R C_{e, t}^{u p} + \sum_{e} m F R R C_{e, t}^{d n}$
$+ \sum_{e} a F R R C_{e, t}^{u p} + \sum_{e} a F R R C_{e, t}^{d n}$
where:
$B A L C A P_{t}$ The total remuneration of all Balancing Service Entities e for the Balancing Capacity supplied for upward and downward FCR, aFRR, and mFRR in an Imbalance Settlement Period t.
If calculation of the Balancing Energy Prices proves impossible, in particular due to an Emergency Situation, or the failure of the Balancing Market System or other electronic systems of the HETS Operator, the HETS Operator shall apply the procedure provided for in the ‘Rules for settlement in case of suspension of market activities’, duly approved by the RAEWW on the recommendation of the HETS Operator in accordance with the provisions laid down in paragraph 4 of Article 18 of Law 4425/2016.

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