DRAVA, KUPA, RJE»INA, LOKVARKA, LI»ANKA LIKA, DOBRA ...

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HEP ANNUAL REPORT 2010
CHAPTER 7 - REPORTS BY HEP GROUP COMPANIES WITH FINANCIAL STATEMENTS
HEP-OPERATOR
DISTRIBUCIJSKOG SUSTAVA d.o.o.
MIŠO JURKOVIΔ
DIRECTOR
HEP ODS (HEP Distribution System Operator) business operations in 2010 were aimed at meeting its legal role in
the electricity market and achieving business objectives in accordance with HEP Group business policy. Improving
operating cost efficiency continued and HEP d.d. Management Board decision concerning reduction in manageable
and partly manageable costs was implemented. Great significance was given to the processes related to the functioning
of the electricity market, primarily through improvement in IT support in the process of supplier switching
and exchanging metering data.
The trend of diminishing number of cases of ascertained unauthorized electricity consumption continued as a
result of permanent activities to refurbish metering points. The continuous business objectives have been to improve
payment collection, optimize inventories, raise the quality of electricity supply, and raise the quality of services in
the activities of distribution and supply.
During the year, 16 capital projects were successfully completed (of the voltage level 110 kV, 35 kV and 20 kV).
Other investments were also fully carried out. Investments in the reconstruction of 110 kV transformer stations were
completed: TS 110/10(20) kV Đakovo 3, TS 110/10(20) kV Dugo Selo, TS 110/10(20) kV Vrbovsko i TS 110/30/10(20)
kV Podi. Also completed was construction or reconstruction of several 35 kV and 20 kV facilities: TS 35/10(20)kV
Čakovec Istok, Sali, Park, Križ, Postira i Vrata; KB 20/35 kV Kostajnica – Dvor; KB 10(20) kV TS 110/35/10(20) kV
Poreč – Poreč 1 – Poreč 2; PKB 20 kV Turanj – Babac – Pašman; DV 10(20) kV Kolan – Gajac; changeover to 20 kV in
the Krapina area and additions to DC Vinkovci with equipment replacement.
In 2010, procurement and installation of 1,000 remote-communication interval meters was carried out, which
were incorporated in AMR (Automatic Meter Reading) system, whereby metering data necessary for the functioning
of the electricity market were secured (determination of electricity consumption in hourly intervals). As part of the
program of refurbishment of metering points, 871 hand-held terminal were procured with software support and a
meter reading probe, for all distribution areas.
In accordance with the pace of return of displaced persons and refugees, reconstruction continued in areas
war affected areas.
During 2010, the activities intensified to connect power plants which are in the renewable sources incentive
system to the distribution network. In the preparatory part, analyses of connection possibilities and studies
on optimum technical solutions encompassed 23 power plants of 80 MW of combined capacity and 16 preliminary
connection approvals were issued for a total capacity of 61 MW. During 2010, six power plants of 14 MW in total
were connected to the distribution network. Connecting power plants to the network raises questions about trial
operation of power plants on the network, network operation with distributed generation and maintenance of the
distribution network which is not radially supplied any more. We face numerous challenges, from coordination with
HEP OPS through adoption of standards to recognition of distributed production which will increasingly affect the
concept of development, operation and maintenance of the distribution system.
The refurbishment cycle of medium-sized control centers aimed at establishing a state-of-the-art architecture
of the electricity network remote control and monitoring system was completed. HEP ODS expert team initiated the
development of SCADAinfo application for these centers, which makes it possible to access data from SCADA through
the internet in HEP’s business network.
A single base of remotely-read customer metering points above 30kW in connected load has been continuously
expanding and now contains metering data from more than 15 thousand metering points. Also, investigations
have been initiated to determine compensating load curves for particular customer categories that have meters
without the possibility of storing energy data in a time interval. In 2010, a pilot project to install meters with remote
switch- off was successfully implemented.