Structure of generation sector
2.1.1 The majority of electricity generation comes from state-owned companies which dominate the sector. On the other hand, private generators dominate the RES sector subject to FITs (as opposed to hydro plants over 10MW which although are RES, are not eligible for the FIT and are operated by a state-owned company). However, all these are smaller plants, the largest being a wind plant of 42MW.
2.1.2 More than half of the total installed capacity in manufacturing facilities within the Croatian power system is located in hydro power plants, which means that the possibility of annual electricity production is significantly dependent on the hydrological state of the given year. Hydro generating station capacities are usually below 50MW, but there are a few larger plants such as the Zakučac hydro plant (486MW), and Orlovac and Senj (each with an output of more than 200MW). Hydro plants over 10MW which although are RES, are not eligible for the FIT and are operated by a state-owned company.
2.1.3 Most thermal plants are state-owned. However, some are owned as JVs with private companies. For instance, the Plomin-B boiler unit of the Plomin thermal generating station, which is co-owned by HEP and RWE Power AG. The Plomin thermal plant, which consists of two boiler units (TE Plomin-A, built in 1969, and TE Plomin-B, built in 2000) is operated by HEP. The government intends to apply a similar arrangement to the reconstructed Plomin-A, which is meant to increase its capacity from the existing 125MW to 500MW (and as a result is now considered as a new project and referred to as Plomin C). The government’s lack of decisiveness in choosing the fuel for the plant (gas or coal) has led to major delays in the development of Plomin C. However, the government intends that the development of Plomin C shall be co-owned in a similar manner to block B, with a JV partner yet to be identified.
The main generating stations are the Sisak condensing thermal generating station (TPP Sisak) which is comprised of two main units fuelled by oil or natural gas (or the two combined), with a total output of more than 800MW, and the aforementioned Plomin thermal plant with the total output of blocks A and B at 330MW. The first block of TPP Sisak is undergoing decommissioning. In 2009, the construction of a gas combined-cycle cogenerating unit C 230MW/e + 50MW/t began with the EPC contract awarded to the Russian Technopromexport and construction of the new plant is due to be completed in 2014. The second block of TPP Sisak B is to be decommissioned between 2017 and 2019.
2.1.4 Since 2007, much progress has been made in the development of renewable energy. A legal framework for generating power (electric and heat) from RES was implemented for the first time in Croatia. The main rationale behind incentivising the renewable energy sector is that producers of renewable energy may obtain so-called “Eligible Generator Status” and thus become eligible to receive a FIT which consists of a fixed part determined by the tariff system and a variable part which may amount to up to 15% of the fixed part, depending on the local content requirement. Eligible Generator Status brings the following benefits:
- generated electricity is sold to HROTE - guaranteed off-take;
- such a generator is incentivised by receiving a fixed FIT for any electricity sold (the FIT is only subject to indexation); and
- these terms apply for a period of 14 years.
2.1.5 By 14 November 2014, there were 1035 RES projects within the FIT system with 368,043MW of installed capacity. Among these there were 15 wind power plants with 297,250MW of installed capacity, 991 solar power plants with 31,678MW, 5 cogeneration plants with 13,293MW, and the remaining installed capacity was divided between 5 hydro power plants, 12 biogas power plants, 4 biomass power plants and 2 power plants operating on deponium gases and gases form water cleaning facilities.
Energy Mix
2.1.6 According to the information obtained from the state-owned generator, in 2013 a total of 18.9TWh of electricity was either generated in or imported into Croatia. Of this amount, 15.4TWh were sold to customers within Croatia. As regards the energy mix, the total of 18.9TWh is distributed as follows: approximately 43% came from the hydro plants and another 22% from conventional thermal plants, 13% from the Krško nuclear generating station, 3% from wind plants, 0.06% from solar plants and the remaining 19% was imported.
2.1.7 As may be deduced from the numbers above, the Croatian generation sector is currently combining traditional generating stations, such as gas and coal fired generating stations with plants producing electricity from renewables. The sector is still dominated by the state-owned producer HEP Generation Ltd. with its thermal and hydro generating stations. The TSO’s preliminary 2013 data shows that the total electricity production in 2013 amounted to 12.8TWh, and the majority thereof, approximately 65%, was produced from thermal plants and large hydro generating stations (over 10MW, which are not incentivised by the FIT system).
Plans for new generating capacity
2.1.8 HEP’s investment fund for the upgrade of hydro plants will amount to HRK 5b by the end of 2015.
2.1.9 Currently, HEP is investing in upgrading and refurbishing the Zakučac hydro plant (worth HRK 1b) by replacing four generating units, thus increasing its current installed capacity to 538MW by 2015. The first out of four phases has been completed, funded solely by HEP. The investment will also cover HE Dubrovnik 1 (HRK 250m) and HE Senj, both of which are underway, as well as HE Varaždin, where the refurbishment should start at the end of 2014.
2.1.10 The process of obtaining the building permit for Plomin C, a thermal plant with 500MW capacity and costing approximately EUR 800m is ongoing.
2.1.11 There are also 306 RES projects that have obtained building permits and are now in various stages of development. According to the planned installed capacity, wind is the leading source with 437.7MW, followed by nine biomass plants with jointly 52.36MW and then 257 solar plant projects with jointly 24.03MW producing capacity. It is important to stress that the interest in wind and solar is much greater than the data indicates, however the development of new projects is limited by the quotas applied to grid connection for wind generation and to the FIT system in relation to solar.
New technologies
2.1.12 HEP has invested approximately EUR 3m in installing 28 DWDM appliances within the Croatian territory, thus enabling data transmission of 100GBp/s. The new network will enable more efficient management of HEP’s systems and may be used by the administrative bodies, telecom, mobile operators and undertakers.
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