Long Term Service Agreement for Gas Turbine in EnerGa Company S.A.

our experience of first year LTSA

Main Parameters of LTSA GT F 9E ( PG9171)

Inspections intervalsPlanned inspections are performed by the Service Company after every 8.000 FFH (CI), 24.000 FFH (HGPI) and 48.000FFH (MI) in accordance with GER 3620K.

Service CompanyWood Group Gas Turbine Services GmbH (selected in public tender procedure)

Term of contract72.000 FFH ( about 9 years) from August 2007 to July 2016 including MI in 2016 year

Scope of work- planned maintenance,- repair and refurbishment of all gas turbine combustion and hot gas path capital parts removed from the turbine during scheduled CI, HGPI, MI,- unplanned maintenance limited to 300.000 EUR/year and 2.000.000 EUR within 9 years (including parts and service)- on-line monitoring system of GT,- guarantee of minimum 98% annual availability (out of planned outage)- guarantee of 24 hours reaction time- no bonus/no penalties on performance

PriceFixed price in EUR, without escalation over the 9 years and no inflation factor to be influencing the price

Covered unit

- gas turbine set (GT and Compressor) with: oil system, DLN system, auxiliary drive,- turbine regulation and protection system SPEED TRONIC ( Mark V),- gas turbine generator with: excitation, protection, tension regulation and synchronization system,- calibration of control and monitoring system,- turbine set cooling water system , - emergency turbine shutdown system, - bleed heating system,- gas turbine compressor washing system,- gas, smoke and fire detection system inside the housing, - steering, metering, controlling and protection instruments installed within the above mentioned systems,

Schedule of planned mainenance for gas turbine and generator

Inspection Type2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

Combustion x x x x x xHot Gas Path (x) x

Major x x

Minor generatorinspection

(x) x

Major generatorinspection

x x

Gear box inspection

(x) x x x x x x x x x

Control system Speedtronic Mark V (x) x x x x x x x x xGas detection system (x) x x x x x x x x xInstrumentation calibration (x) x x xMotors / continuous duty x x

All auxiliary equipment x x

Cumulative FFH attime of outage

24,000 32,000 40,000 48,000 56,000 64,000 72,000 80,000 88,000 96,000

* All outages will be performed during the planned annual down time occurring in July of each year

Regular maintenance as per GE handbook every six months in addition to operation and maintenance by customer

Maintenance performance year

Experience of first year LTSA cooperation with WGGTS

Fulfil the contractor obligations• Spare parts – Contractor supplied all ordered spare parts• Service – Contractor made all planned maintenance

Review of work• Good quality of work – no operation’s problems• Good reports• Good performance of parameters• Tools permanently on site

No delays in schedule outage.

Fast mobilization time for unplanned events– max 24h.

Advices and recommendations for better performance and operation.

Good relationship with Contractor.

Good communication with Contractor – Project manager speaks Polish.

Quality of refurbishment – seems OK.

Quality of new parts – seems OK.

Experience of first year LTSA with WGGTS

Spare parts

New spare parts supplied to EnerGa by WGGTS in 2007 and 2008

3rd Stage Buckets3rd Stage Nozzles3rd Stage ShroudsFlow Sleeve AssemblyStator Bars / A-Slot Bottom BarStator Bars / B-Air Gap BarAxial Fans Blade – A1Axial Fans Blade – A2Padded Bearing – A (Set of 5 Pads)

Padded Bearing – B (Floating Joints)End Winding (Complete Set)Gas Turbine bearings stage 1Gas Turbine bearings stage 2Gas Turbine bearings stage 3Auxiliary gear BearingsFlexible Hoses (Primary fuelFlexible Hoses (Secondary fuel)Flexible Hoses (Tertiary fuel)

Experience of first year LTSA with WGGTS

Reports

Reports submitted after the performed Maintenance Service:

1. Combustion inspection (CI) – assembly report2. Endoscopy inspection of the dismantled combustion system parts3. Inspection of the measurement and control system and apparatus of gas turbine4. MARK V ; masks before CI and after CI has been performed5. Testing of the gas turbine set electric motors6. Testing of the generator (ALSTOM)7. Assessment of the gas turbine/boiler tube compensating piece