Use of the grid
Updated: 07.02.2019
The use of the grid is governed by the general legislation on energy and in the RES Act. RES-E plant operators have the right to use the grid in accordance with the provisions governing its use – namely the Energy Act, the Grid Code and the General Electricity Supply Conditions. The transmission and distribution system operators are required to give priority dispatch to electricity produced from renewable energy sources (Art. 19 § 2 RES Act).
The central agreement governing the grid use procedure is the agreement on grid use signed between the grid operator and the plant operator. Transmission services are paid for by network users through the charge for transmission network use (Art. 27 no. 3 and 4 as well as Art. 33 and 44 General Electricity Supply Conditions).
The new RES Act envisages that the Croatian Energy Market Operator (HROTE) is responsible for balancing electricity from all existing renewable energy producers. Renewable energy producers of more than 500 kW are paying the fee in the case of caused imbalances. However, before the necessary rules on organising electricity market related to balancing groups are adopted, the existing Rules on Balancing the Electric System apply.
Procedure
Process flow | In order to use the grid, plant operators are required to sign a contract with the grid operator (Art. 27 no. 3 and Art. 44 General Electricity Supply Conditions). This is done according to a specific grid connection procedure. |
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Competent authority | Grid Operator (HEP – OPS) |
Deadlines | While providing grid infrastructure, the grid operator is obliged to ensure the quality of the voltage within the agreed parameters (Art. 53 General Electricity Supply Conditions). If a grid user requests a reassessment of the voltage quality, the grid operator is obliged to make the required assessment within 20 days and then, within another 10 days, answer the request (Art. 56 General Electricity Supply Conditions). |
Obligation to inform | The grid operator is obliged to inform the plant operators about any changes in the voltage of the (high or medium-voltage) grid (Art. 64 General Electricity Supply Conditions). The grid operator is also obliged to inform the grid users about any changes to the measuring devices (Art. 81 § 3 General Electricity Supply Conditions). If the grid is disconnected for more than 3 minutes, the grid operator has an obligation to inform the users prior to that event (e.g. maintenance works etc.) (Art. 109 and 112 General Electricity Supply Conditions). |