Energy storage is an important component of the energy system, as it provides an increase in its flexibility and ability to store surplus energy. Therefore, the implementation of energy storage allows integrating more RES generation into the energy system. This technology is an essential tool for solving the problems of the security of electricity supply and operational security of the unified energy system of Ukraine and for implementation of the green energy transition of the state.
On 15 April, the President signed the Law of Ukraine “On Amendments to Certain Laws of Ukraine on the Development of Energy Storage Facilities” No. 2046-IX (the “Law on the Development of Energy Storage Facilities”), adopted by the Verkhovna Rada of Ukraine on 15 February 2022. The Law enters into force two months after its publication, namely on 16 June 2022. It provides for amendments to the Laws of Ukraine “On the National Energy and Utilities Regulatory Commission” and “On the Electricity Market”.
1. The energy storage facility is operated by an operator that is a new participant in the electricity market.
2. Business activity on energy storage is carried out subject to obtaining a license, except in the following cases:
– operation is carried out at the place of licensed activities on electricity production,
– storage facility withdraws electricity exclusively from the generating facilities of the producer,
– at any time, the total output capacity of the electricity producer in the unified power system of Ukraine does not exceed the installed capacity of the electricity facilities of such a producer as set in its license on electricity production;
3. The operator of the energy storage facility is prohibited from carrying out activities on:
4. The energy storage facility must be provided with separate commercial metering of electricity flow both to and from such an installation.
5. The operator of the energy storage facility pays a service fee for:
The fee is calculated based on the tariffs for such services and the amount of electricity, which is the difference between the monthly withdrawal and the monthly output of electricity by the facility.
Peculiarities for RES producers
Equipment for storage (accumulation) of energy is subject to the general conditions and procedure for connecting to the transmission system provided for by the Transmission System Code, with the following features:
The Transmission System Code establishes the types of energy storage facilities (А1, А2, B, C, D) depending on the voltage level of their connection point and maximum output capacity and also technical requirements for the respective types.
The Transmission System Code also defines requirements for participation of the energy storage facilities in ensuring operational security of the transmission system, operational planning of the transmission system, and provision of ancillary services to the TSO.
Assessment of the required capacities
The Report on assessment of conformity (sufficiency) of generating capacities – 2020 (the “Report”) of the transmission system operator (PJSC “NPC “Ukrenergo”) provides for the need to accelerate the implementation of electricity storage systems with a total capacity of up to 0.5 GW or even up to 2 GW, depending on the options for involving generation in regulation, which will provide the unified power system of Ukraine with the necessary regulation reserves to meet compliance requirements.
In addition, the Report outlines that introduction of facilities for accumulation and transfer of power from periods of the electricity load schedule, where there is a surplus, to periods where there is a deficit, solves the problem of long-term power surpluses.
The issue of approving the Report – 2021 was to be considered by the NEURC on 19 April 2022, but so far, there is no information about the approval.
In Ukraine, the regulation of energy storage (accumulation) systems necessary for the national unified power system has been introduced. Such regulation is a crucial step for the practical implementation and operation of technology that allows to increase the level of security in the power system, its flexibility and ensures the implementation of measures related to the performance of Ukraine’s climate obligations.
If you would like to discuss the issues raised in this paper in more detail, please contact the SK team.
Information contained in this legal alert is for the general informational purposes only, does not constitute legal or other professional advice and should not be relied upon as a substitute for specific professional advice adapted to the specific circumstances.