Balancing services are defined, procured and activated in positive and negative direction separately:
|
Balancing service |
Availability |
Response time |
Max activation duration |
Time between the two activations |
Max number of activations |
Min power |
Grid user |
|
aFRR capacity /balancing energy |
100% of offer time |
100% of power output within 5 minutes |
Continuous |
- |
- |
1MW |
TSO & DSO |
|
mFRR capacity /balancing energy |
100% of offer time |
100% of power output within 15 minutes |
Defined in Balancing Service Agreement |
1MW |
TSO & DSO |
||
Who can be balancing service provider (BSP)?
Balancing service providers can be all individual network users and aggregators who have signed Balancing Service Agreement with Transmission System Operator (for each service separately).
Balancing Service Agreement can be signed by all individual network users and aggregators who have successfully completed prequalification process and demonstrated technical ability to provide balancing services.
Technical ability of end users for provision of balancing services is been proven by pre-qualification process.
Procurement by public tender:
From 20 February 2023, HOPS will implement a new method of procuring mFRR balancing capacity and/or balancing energy through public tender , in accordance with Article 4. Electricity balancing rules (HOPS 11/2019).
Balancing services are procured in a transparent and non-discriminatory manner by conducting a procurement procedure through a public tender that is conducted on a periodic basis (monthly, weekly, daily and / or intraday).
In cases when there is only one prequalified service provider (so-called dominant service provider) for a particular balancing service, a service is then procured via direct contract with dominant provider in accordance with:
- Methodology for determining balancing capacity prices (HOPS 7/2016) (available only in Croatian language)
- Rules for determining the balancing energy price caps (Annex 1. of Electricity Balancing Rules, November 2019.)