COMBINED NATURAL GAS POWER PLANT

POWER PLANT LAYOUT

OFFERING TO SELL ; - 6 ALSTOM Power Plant U.K. construction TYPHOON model gas turbines ( 5.08 MW ) - 1 ALSTOM Power s.r.o. construction ST3- C.V56 steam turbine ( Nom ; 15.25 MW , Max: 16.3 MW ) - Build in 2003 and has been active since - Maintenance of the turbines are carried out by Siemens - 2 Boilers (heat recover steam generators) - 7 ALSTOM power transformers - Two bus-bar systems (34,5 kV) - Air filtering system for effective performance in polluted enviroments - The facility works with 43% efficency and has a total capacity of 45 MWh.

GAS TURBINES (6)

Technical Data of the Turbines (6) SGT-100-1S single-shaft turbine for Power Generation Power output 5.25 MW(e) Fuel: Natural gas / liquid fuel / dual fuel and other fuels capability on request Automatic changeover from primary to secondary fuel at any load Frequency: 50/60Hz Electrical efficiency: 30.5% Heat rate: 11,815kJ/kW-hr (11,199Btu/kW-hr) Turbine speed: 17,384rpm Compressor pressure ratio: 14.6:1  

STEAM TURBINE (1)

Technical Data of the Steam Turbine (1) TURBINE : ALSTOM Brno/ Czech Repuplic TYPE : ST3-C , V56A ATP2 (Condensing) TURBOSE OUTPUT: (at generator terminals ) Rated:15,25 MW maximal:16,3 MW Speeds :5952 rpm Live steam Pressure : 45 Bar Temperature: 440 C Flow : 52,2 t/h LP admissio steam Pressure : 6 Bar Temperature :243 C Flow :12,6 t/h

Heat Recover Steam Generators/Boilers (2)

TECHNICAL DATA FOR BOILERS

TRANSFORMERS - To increase the output voltages of generators from 11 kV to 34.5 kV, 7 ALSTOM power transformers are used. - Gas turbine's power transformers are 11 / 34.5 kV and 6550 kVA the - The steam turbine transformer is 11/34.5kV and 20,400 kVA power. - In addition, for internal need we have 4 transformers. 2 of them are 0.4 kV / 1000 KVA, the other 2 are 0.4 kV / 1600 KVA power.

COOLING TOWERS

AIR FILTERING SYSTEM

LIQUID FUEL SYSTEM Gas turbines and natural gas alternative-fuel units, can operate with diesel and naphtha fuels. Fuel transitions can take place without interruption. If there is a drop in gas pressure, the liquid fuel passage is provided automatically.

PROCESS FLOW OF THE POWER PLANT

TURBINES WORKING AND MAINTANENCE SCHEDULE Total working hours: Working hours of all systems related to turbines Net working hours : Working hours of turbines only B-type maintenance: Extensive maintenance of all systems related to turbines A-type maintenance: Second degree maintenance of all systems related to turbines Turbine Total Working hours until 01.01.2013 Start Count Net working hours per turbine until 01.01.2013 Turbine working hours and start count after B-type maintenance B-type (extensive) maintenance dates A-type maintenance dates Gas 1 52.170 995 22.263 (core change on Sept 2008) 4807-258 March 2011(47363-737) Nov 2012 (50695- 974) Gas 2 49.561 1389 49212 4398-359 July 2011(45163- 1030) Nov 2012 (48154- 1370) Gas 3 54.091 1213 47683 4034-296 Feb 2011 (50057- 917) Nov 2012 (52667- 1200) Gas 4 52.154 1158 4.429 (core change on July 2011) 4429-307 June 2011 (47725-851) July 2011 (47725- 851) Gas 5 53.913 1385 21.513 (core change on Sept 2008) 6595-432 Nov 2010 (47318- 953) Nov 2011 (49971- 1163) Gas 6 52.942 1393 49.364 7242-645 Nov 2010 (45700- 928) Dec 2011 (48851- 1194) Steam 58.919 444 4973-115 Apr 2011 (53946- 329)