Registration of energy storage systems
The power system operator maintains, in electronic form, a register of energy storage systems connected to its network, which are part of it or are an element of a generation unit or end-user installation. This register is maintained in accordance with the model specified in the relevant regulations. In situations where more than one power system operator may be authorized to make an entry in the register, the entry is made by the operator chosen by the owner of the energy storage system.
Electrical energy storage systems with a total installed capacity greater than 50 kW are entered into the register. The power system operator is obliged to make an entry of the energy storage system into the register within 14 days from the date the storage system is put into operation or from receiving the relevant information. In cases where the energy storage system is part of a generation unit or end-user installation connected to the network of a given operator, the owner of the storage system is obliged to provide the operator with information containing data about the storage system within 7 days from the date the storage system is put into operation.
The register contains the following information:
Designation of the owner of the energy storage system, including:
- First and last name or the name along with the designation of the legal form of the owner of the energy storage system,
- Place of business activity, headquarters, and its address,
- PESEL number or tax identification number (NIP), if applicable.
Designation of the energy storage system, including:
- Specification of the technology used for energy storage,
- Data regarding the total installed capacity of the energy storage system specified in kW,
- Data regarding the capacity of the energy storage system specified in kWh,
- Efficiency of the energy storage system,
- Maximum charging power expressed in kW,
- Maximum discharging power expressed in kW.
- Connection point of the energy storage system,
- Indication of whether the energy storage system is part of a generating unit or an end-user installation.
- Legal title to the owned energy storage system.
The register is public and made available by the power system operator on its website, excluding information that constitutes a trade secret reserved by the owner of the energy storage system or subject to personal data protection. The owner of the energy storage system must notify the power system operator of any changes to the data contained in the register within 14 days from the date of the change. The power system operator is obliged to update this data within 14 days from the date of receiving the notification.
The Minister responsible for energy matters specifies, by regulation, the template for the energy storage systems register, the template for information and its updates, as well as the data format included in the energy storage systems register, taking into account the need to standardize the form of information transmission regarding energy storage systems and the possibility of aggregating information contained in the energy storage systems registers maintained by power system operators.
Connection agreements and conditions
- The connection agreement for an energy storage system should include, among other things, the parameters of the storage system, such as total installed power expressed in kW, nominal capacity in kWh, and the efficiency of the storage system.
- The efficiency of an energy storage system is understood as the ratio of electrical energy output from the storage system to the electrical energy input into the storage system, expressed as a percentage within one complete operating cycle of the storage system.
Management and responsibilities of operators
- The power system operator cannot own, build, operate, or manage a storage system unless the storage system is recognized as a fully integrated network element.
- Power system operators can utilize services provided through the use of an energy storage system, but they must conduct tenders for these services in an open, transparent, and non-discriminatory manner.
Fees and settlements
- In settlements for the provided services of electrical energy transmission or distribution, the contracted capacity for the energy storage is reduced by the product of the contracted capacity and the factor determined by the ratio of electrical energy introduced into the grid by the storage to the electrical energy drawn from the grid.
- If the energy storage is part of a generating unit or an end-user installation, the subject of settlement is the difference between the energy drawn from the grid by the storage and the energy introduced into the grid by this storage.
Connection applications
The application for determining the connection conditions for an energy storage system should include information regarding the storage parameters, such as total installed capacity and nominal capacity.
If you have any questions or concerns regarding the above matter, please do not hesitate to contact our experts:
Piotr Włodawiec: wlodawiec[at]prokurent.com
Łukasz Moczydłowski: moczydlowski [at] prokurent.com
Paweł Wróblewski: 'p.wroblewski [at] elbudbis.pl
Authors:
Piotr Włodawiec – Attorney-at-law / Senior Partner
Łukasz Moczydłowski – Attorney-at-law / Senior Partner
Paweł Wróblewski – CEO ElbudBis
Relkonds
Material prepared in collaboration with:
