European Commission Decision of 7 February 2018 (C(2018) 601 final)

(77) As long as only certain years are simulated within the Mid-term Adequacy Forecast (MAF) modelling exercise (for instance, only the years 2020 and 2025 in the MAF 2017 exercise), PSE will use the last publicly available MAF exercis

e and pick the closest simulated year that is not later than the delivery year. For instance, if at the time of the main auction for the 2024 delivery year (i.e. in 2019) there are only MAF simulations for 2022 and 2027, then PSE will take the 2022 simulation as a basis for its 2024 de-rating calculation.

(78) For the 2017 MAF exercise (which simulates the years 2020 and 2025), PSE has submitted the following inputs with respect to the Net Transfer Capacity (NTC) of its interconnectors:
(a) Synchronous profile: 500 MW in 2020 and 2 000 MW in 2025;
(b) Sweden: 600 MW in 2020 and 2025;
(c) Lithuania: 500 MW in 2020 and 2025;

(79) The Polish authorities have committed to assuming at least the above 2020 NTC values in all future de-rating calculations based on MAF.

(80) Starting from the total NTC, the de-rated capacity of an interconnector will be calculated as the capacity which is forecasted to be actually used for imports during Polish system stress events. In practice, the result of this calculation is a population of Monte Carlo samples representing the de-rated capacity (i.e. the forecasted imports) for each simulated scenario. As the results within those samples may be significantly dispersed, PSE will set the final de-rated capacity as:
(a) the arithmetic mean of the population if the coefficient of variation (relative standard deviation) is below or equal 50 %;
(b) the value corresponding to a 25 %-percentile (i.e. a 75 % probability that the de-rated capacity is above this value) if the coefficient of variation (relative standard deviation) is above 50 %.

(31) The Polish authorities have set a reliability standard for the Polish electricity market equal to a LoLE of 3 hours per annum. This translates to a system security level of 99.97%.

(32) The reliability standard determines how much capacity is auctioned in the capacity market. Each year, PSE will set out how much capacity is needed to meet the reliability standard and will provide advice to the Government.

(176) As regards the cumulation of aid, specific rules have been implemented to deal with the situation in which capacity providers were to receive either operating or investment aid in parallel with the capacity payments (see also recitals (18) and (19)). In case of operating aid, the capacity market excludes capacity providers in receipt of such aid from the participation in the capacity mechanism. Capacity providers in this situation have to opt out from their operating aid scheme if they win the capacity auction. Capacity providers in receipt of investment aid may participate in the mechanism. The investment subsidies granted on the basis of such investment aid schemes36 will be nevertheless deducted from the capacity payments granted to the beneficiaries concerned to avoid any overcompensation. The Commission therefore takes the view that the proposed mechanism prevents the possibility of overcompensation in case of cumulation of aid.


(177) In conclusion, the Commission considers that the design of the proposed mechanism ensures that the aid granted through it is proportionate.

 Documentation

European Commission Decision of 7 February 2018 (State aid No. SA.46100 (2017/N), C(2018) 601 final)

Ustawa z dnia 8 grudnia 2017 r. o rynku mocy (Dz.U. z 2018 r., poz. 9)

Regulamin rynku mocy zatwierdzony przez Prezesa URE

Informacja Prezesa Urzędu Regulacji Energetyki nr 22/2018 z 15 marca 2018 r. przedstawiająca wykaz usług, o których mowa w art. 16 ust. 2 pkt 3 ustawy o rynku mocy