ZRE Gdańsk Sp. z o.o. START COMPANY PROFILE HYDROELECTRIC PLANTS NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT ZRE Gdańsk Sp. z o.o.

Comprehensive services for energy sector ZRE Gdańsk START COMPANY PROFILE Comprehensive services for energy sector HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Core business Overview Specialization Ecology Certificates Company Profile START COMPANY PROFILE Core business Overview Specialization Ecology Certificates HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Core business production of electrical equipment and apparatus repairs, upgrades and assembly services in the power sector designing and technical consultancy consulting diagnostics comprehensive services

ZAKŁAD REMONTOWY ENERGETYKI GDAŃSK SP. Z O.O. Overview ZAKŁAD REMONTOWY ENERGETYKI GDAŃSK SP. Z O.O. Dates 1933 – establishment of the Firm 1994 – privatisation 2003 – ISO 9001:2000 certificate Employment Management Board: four members Number of full-time employees: 109 persons Main advantages Highly qualified personnel, complete workshop and production back-up facilities, Company’s diagnostic laboratory and long-standing experience in the energy sector. Partners Gdańsk Technical University, Polish Academy of Sciences (PAN), Naval Academy, Power Industry Institute, Electrotechnics Institute and foreign companies, including Voith, Siemens, Vatech, Glacier, RollsWood and DEHN.

Specialization of the Company Constructions, repairs and upgrades of large hydroelectric power plants Turnkey constructions of hydroelectric power plants Reconstructions of worked out hydroelectric power plants Repairs, upgrades and assembly of Steam boilers Water boilers Propeller pumps Gas turbines Diagnostics of industrial equipment Manufacture and assembly of electrical equipment and apparatus Manufacture of safety apparatus for SN transmission grids Live maintenance of equipment up to 36kV Repair and assembly services in the power sector Services for the army

Natural environment protection ZRE Gdańsk focuses on the protection of natural environment production and assembly of equipment for renewable sources of energy energy saving solutions increasing the efficiency of energy use enhancing process efficiency reducing the emission of environmental pollution

Certificates DNV – ISO 9001:2000 UDT – 2nd Level Accreditation Certificate for Diagnostics Laboratory UDT – License to produce pressure equipment UDT – License to perform pressure equipment repairs

Hydroelectric plants START COMPANY PROFILE HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES Power plant constructions Turbine manufacture Assembly and start-up Servicing Repairs and upgrades NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Turbine designing and selection basis Installation-operation conditions of turbines Basis for turbine designing and selection : Turbine model tests Conducted at laboratories of Gdańsk Technical University and Flow Machinery Institute of PAN in Gdańsk Computer aided flow analysis With commercial TASCflow software Determining the power and cavitation characteristics of turbines Determining efficiency courses Determining power curves Determining turbine foundation height

Kaplan turbines a vertical turbine fed with a helix a suction curved-axial pipe double control – with rotor blades and a steering gear EW Jeziorsko Rotor diameter D=2400 mm Head H=6.5 m Rate of flow Q=30 m3/s Power N=1625 kW

Kaplan turbines (cont.) a vertical turbine built in an open chamber a suction curved-axial pipe double control – with rotor blades and a steering gear MEW Szaflary Rotor diameter D=1550 mm Head H=4.5 m Rate of flow Q=11.5 m3/s Power N=415 kW

Pipe turbines a horizontal system a double-curved suction pipe control with rotor blades MEW Domaniów Rotor diameter D=650 mm Head H=7.3 m Rate of flow Q=2.2 m3/s Power N=125 kW

Angular pipe turbines a vertical or oblique system a suction curved-axial pipe double control – with rotor blades and a steering gear MEW Czaniec Rotor diameter D=750 mm Head H=6.1 m Rate of flow Q=2.5 m3/s Power N=125 kW

Pipe straight turbines Rotor diameter D=1550 mm Head H=2.4 m Rate of flow Q=3.15 m3/s Power N=20.500 kW

Range of services and supplies ZRE Gdańsk Services Production Delivery Assembly Start-up Servicing Supplies - range Turbines Transmission Generators Control systems Power terminal systems

Advantages of upgrading Extended life of turbines and entire power plants Enhancing power or efficiency Better performance characteristics, increased flowability Increased energy production – on average by 5-20% Enhanced availability Reduced operation costs of the power plant Eliminating the risk of environmental pollution – application of modern self-lubricating or water-lubricating bearings

Comprehensive services START COMPANY PROFILE HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES Assembly Repairs Maintenance Construction of stations and equipment Accessories manufacture NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Steam and water boilers. Gas turbines. repairs and upgrades of steam and water boilers; repairs and assemblies of gas turbines; prefabrication of spare parts; repairs of drums and steam separation equipment; exchanging steam and water pipelines; repairs of fittings including complete renovation of parts; exchange and renovation of construction and casing elements; prefabrication of constructions and casings; repairs of auxiliary equipment: mills, grates, precipitators, fans, etc., including the production of spare parts; upgrades of boiler air rotary heaters;

Diagnostics Comprehensive tests of power equipment Detailed non-destructive testing Detailed destructive testing Including: radiographic, ultrasonic, magnetic, liquid-penetrant, welded joints, crack depth, material properties, steeloscope, Diagnostic Laboratory complies with the PN-EN 45001 standard criteria and the ISO/ IEC 25:1990 Guide as well as requirements of Technical Inspection Conditions DT – LI95.

Electrical services. Services, maintenance and repairs of electrical motors and low and medium voltage generators Services, maintenance and spinning power and distributing transformers oil Constructions, repairs and services of main GPZ feed points, including: Power terminals Secondary circuits Telemechanics Connection systems

Manufacture and assembly of control systems. Static systems of excitation and regulation of WGSY synchronic generator voltage Thyristor cascade control systems for rotational speed in UKSA asynchronous slip-ring motors Static excitation systems of WSSY synchronous motors Control systems of rotational speed in synchronised asynchronous motors (SAS) URSAm Microprocessor RMT transformer controllers Convection current monitors for RK storage batteries Customised control systems

Live servicing (max. 36kV) Comprehensive maintenance of internal switchgears Live cleaning of switchgears with dry and wet methods Live supplementation of impregnant in cable heads Live tightening of screw connections Distribution of world class equipment manufactured by Dehn+Sohne Supervision and training within live operation

Network equipment START COMPANY PROFILE HYDROELECTRIC PLANTS Gas-expulsion safety devices Stand-off insulators Safety devices bases WZZ COMPREHENSIVE SERVICES NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Fuse element shields - OWBG Modern technology Easy installation, low weight Multiple use shields reduce station operation costs Easy exchange of fuse elements Optional exclusion of small currents in the complete range A wide range of rated constant currents from 12 to 36 kV Significant interrupting capacity Compliance with PN, IEC and GOST requirements Adapted to work with all types of bases used in Poland Overcurrent protection

Stand-off silicon overhead insulator C 04 Modern technology Stable protection characteristic Significant leakage path Optional installation in any position Low weight Protection entirely resistant to tear Supportive equipment

Overcurrent protection PBN Us fuse basis Modern technology Stable protection characteristics Significant leakage path High mechanical resistance Resistance to pollutions Low weight Protection entirely resistant to tear Ideal cooperation with OWBG fuse element shields Overcurrent protection

High voltage Protection Set Modern technology Low weight Compact design Easy installation Facilitates the construction of pylon structures Significant energy absorbing power Stable protection characteristics High mechanic and damage resistance Resistant to pollutions Complex protection

References Services Manufacture www.zregdansk.pl START COMPANY PROFILE HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Repairs of large hydroelectric power plants Żydowo Major overhaul of three hydroelectric units 3 x 50 MW Dychów Major overhaul of a Kaplan turbine 26.1 MW Włocławek Major overhaul of six hydroelectric Kaplan units 6 x 27.8 MW Solina Modernization of two hydroelectric Kaplan units 2 x 68 MW Dębe Supervision of the major overhaul and modernization of three hydroelectric Kaplan units 3 x 5.3 MW Myczkowce Modernization of two Kaplan hydroelectric units 2 x 4.9 MW Rosnowo Repair of a hydroelectric unit 1.15 MW Smardzewice 2 x 1.7 MW Mierejovice (CZ) Reconstruction of five Francis turbines 5 x 0.75 MW

Latest MEW reconstructions and constructions Horizontal pipe turbines Domaniów Rawa Mazowiecka Kłódka Piechowice 2 x 140 kW 90 kW 70 kW Siphon water pipe turbines Głuchołazy 2 x 60 kW Bell pipe turbines Dwory 3 x 250 kW Kaplan turbines Jeziorsko Kępka Szaflary 2 x 2700 kW 2 x 465 kW 415 kW Francis turbines Kuźnice Zajeziorna Trynka 56 kW 14 kW Banki turbines Smokowo Cieszanowice Ustrzyki Górne 2 x 37 kW 50 kW 15 kW

Diagnostics services - experience. EC Wybrzeże (CHP) comprehensive examination of boilers and turbines ZEC Bydgoszcz (CHP) material testing (evaluation) of boiler pressure elements Energomontaż Zachód radiographic examination, UT, MT, PT, welded joints EC Elbląg (CHP) material testing (evaluation) of pipe sections, boiler elements and welded joints Energoremont UT examinations of welded joints in boiler elements „Wisła” Aluminium X-ray examination of hulls EW Włocławek, EW Solina, EW Rożnów, EW Żarnowiec non-destructive testing of hydroelectric unit elements, bearing testing LOTOS Group diagnostics of an OO-160 boiler

Services - experiences. EW Żarnowiec repairs of generators, starting motors and transformers EW Solina (Hydroelectric CHP) disassembly and assembly works, unpacking, unwinding and winding generators no. 1, 2 and 3 EW Domaniów manufacture, assembly and starting a feeding, control and power terminal system Elektrownia Bełchatów manufacture, assembly and starting excitation rectifiers T15/01 EC Władysławowo (CHP) prefabrication and assembly of NXPlus switchgears (SF6) for a 30kV switching station of a 110/30/15kV station ANWIL Włocławek modernization of ‘Orbit’ type valves assembly of chlorine system supports Zakłady Azotowe Tarnów (Nitric Plant) manufacture, assembly and starting static excitation systems of WSSY 11 type for 4.8 MW motors EC Wrocław (CHP) manufacture, assembly and starting a static excitation and start-up system of ETA 2750 ETA type EC Wybrzeże (CHP) transformer maintenance and repairs ZE Toruń (CHP) generator maintenance and repairs ZE Gdańsk (CHP) repairs, maintenance and rewinding generators and live work

Cooperation advantages Company contacts START Summary COMPANY PROFILE Cooperation advantages Company contacts HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES NETWORK EQUIPMENT REFERENCES SUMMARY CONTACT www.zregdansk.pl

Cooperation with ZRE Gdańsk - Benefits Construction, repairs and modernization of large hydroelectric power plants Construction, repairs, modernization and reconstructions of MEW Repairs, modernization and assembly of steam and water boilers Installations, repairs and servicing gas turbines Services for power industry Protection devices for SN transmission grids Industrial diagnostics Consulting Identifying and removing failure causes

Company contacts Marketing Division Manufacturing Department Marketing Manager: Tomasz Dudkiewicz T: +48 (58) 320 77 81 F: +48 (58) 320 77 31 tomasz.dudkiewicz@zregdansk.pl Manufacturing Department Technical Director: Henryk Chaberski T: +48 (58) 320 77 30 F: +48 (58) 320 77 31 Logistics Department Logistics Manager: Tadeusz Benka T: +48 (58) 320 77 72 F: +48 (58) 320 77 86 tadeusz.benka@zregdansk.pl Management Board Office Manager: Leokadia Łopata T: +48 (58) 320 77 55 F: +48 (58) 301 74 31 zre@zregdansk.pl

ZRE Gdańsk Sp. z o.o. Your reliable partner. 80-719 Gdańsk START COMPANY PROFILE ZRE Gdańsk Sp. z o.o. HYDROELECTRIC PLANTS COMPREHENSIVE SERVICES NETWORK EQUIPMENT Your reliable partner. REFERENCES SUMMARY CONTACT 80-719 Gdańsk Litewska 14A +48 (58) 320 77 00 zre@zregdansk.pl www.zregdansk.pl