PRODUCT PRESENTATION SERIES 4000 1500 – 3400 kVA

1 MTU Onsite Energy Systems GmbHAll rights reservedPRODUCT PRESENTATIONSERIES 40001500 3400 kVA MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 2 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedTODAY S AGENDA01. Philosophy02. PRODUCT Family Concept03. PRODUCT Overview04. Diesel Generator Set Ratings05. Main Components06. Peripheral Components07. Summary MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 3 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reserved01 PHILOSOPHYMTU ONSITE ENERGY SERIES 4000 GENSETS MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 4 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights job:Providing reliable power for all customer applications underall environmental conditionsVision:We at Tognum set the standard as the preferred partner for the bestsolutions in power and :Maintaining leadership in PRODUCT innovation.

2 Broadening applicationand customer portfolio. Custom-made products. Integrating systemand service like MTU engines, our gensets are: proven reliability exceptionally economical have outstanding load acceptancecharacteristics have outstanding load factors in allapplication groups designed for easy maintenanceDas Bild k annzurzeit 5 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reserved02 PRODUCT Family Concept MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 6 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT FAMILY Harmonization of our PRODUCT design across all global MTU OnsiteEnergy locations Harmonization of our PRODUCT design across all MTU Onsite Energyproduct SERIES Harmonization of our PRODUCT design to our customers requirementsDas Bild k annzurzeit 7 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT FAMILY Significant enhancement of standard options Improved system integration ability Improved overall PRODUCT

3 Quality Easier customization of the gensetDas Bild k annzurzeit 8 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reserved03 PRODUCT OVERVIEW MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 9 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT SCOPE OF Fuel consumption optimized TA-Luft optimized NEA optimizedGenerator Marathon generator Winding RTDsBase Frame Welded design Resilient engine and generator mountingControl Panel Control variant 1+ (cabinet without controller)Air Intake Standard dry air filterFuel System Fuel main filterStarting / Charging Electric starter (24 VDC / 2x 9kW)Voltages 400 VDas Bild k annzurzeit 10 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT SCOPE OF / StandardsEngine-generator set engine-generator set standard factoryacceptance testing Applicable Performance class G3 BS-4999 VDE 0530 ISO 8528 NFPA 110 Generator IEC 60034-1 NEMA MG 1-22 Radio interference level NEngine DIN ISO 3046 SAEJ 1995 / J1349 Technical DocumentationOperation and Maintenance Manual PRODUCT information (functionaldescription) Operation, troubleshooting andmaintenance instructions Tools listFluids and Lubricants SpecificationQuick Reference GuideDas Bild k annzurzeit 11 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT SCOPE OF 380V, 415V 11kVGenerator Oversized Marathon generator Medium voltage Marathon generator Leroy Somer generator (low & medium voltage) Bearing temperature sensor Anti condensation heaters (Standard for MV)

4 Differential protection CT sStarting / Charging Starter battery Battery rack Battery charger (battery charging alternator isno longer part of our scope of supply)Cooling System Mechanical radiator (40 C & 50 C*) Electrical driven radiator (40 C & 50 C) Piping between engine and radiator hoses Jacket water heater Radiator front protectionLubrication System Lube oil extraction pump* 50 C mechanical driven radiator is not available for genset models with 20V4000G63L engineDas Bild k annzurzeit 12 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT SCOPE OF System Fuel pre filter Fuel pre filter with water separator and water level sensor Fuel pre filter switchable with water separator and water levelsensor Fuel return cooler integrated into radiator Fuel return cooler (loose delivery)Exhaust System SilencerSilencer foruse w/oY-pipeSilencer foruse withY-pipe10 dB(A)12V, 16V models-30 dB(A)12V, 16V modelsAll models40 dB(A)12V, 16V models20V models Y-pipe Exhaust bellows with connecting flangeAir Intake Heavy duty air filtersDas Bild k annzurzeit 13 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedPRODUCT SCOPE OF Panel Basler controller Deif controller Island operation(Control Variant 2) Automatic Mains Failure (AMF) operation to becombined with Automatic Transfer Switch (ATS)(Control Variant 3a) Automatic Mains Failure (AMF) operation to becombined with electrical interlocked circuitbreakers(Control Variant 3b) Island parallel operation(Control Variant 4) Automatic Mains Failure (AMF) operation withmains restoration synchronization(ControlVariant 5) Mains parallel operation of a single genset(Control Variant 6) Mains parallel operation of multiple gensets(Control Variant 7)

5 Circuit Breaker Manual operated circuit- breaker IEC 3/4pole Electrical operated circuit- breaker IEC 3/4pole Automatic transfer switch Circuit breakers as stand-alone solutionDas Bild k annzurzeit 14 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reserved04 RATINGS MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 15 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights RATINGS DEFINITION OF MTU declaration for genset (ISO 8528-1)MTU RatingsEmergency Standby Power (ESP) Maximum power during a variable electrical powersequence Operating hours per year: 200 Load factor: < 70%Standby power (3D) Operating hours per year: 500 Load factor: < 85%Prime Power (PRP) Maximum power which a generating set is capable ofdelivering continuously whilst supplying a variableelectrical load Operating hours per year: unrestricted Load factor: < 70%Prime power (3B) Operating hours per year:unrestricted Load factor: < 75%Das Bild k annzurzeit 16 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedRATING ModelEngine3B Rating in kVA*40 C / 400m (NEA: 40 C / 100m)Fuel consumptionoptimizedTA-Luft optimizedNEA optimizedDP1500D5S12V 4000G231500 15501500 15501500 1550DP1650D5S12V 4000G231550 16501550 16501500 1650DP1800D5S12V 4000G631750 18501750 18501800 1850DP2000D5S16V 4000G232050 21002000 21002000 2100DP2250D5S16V 4000G632100 23002100 23002030 2250DP2500D5S20V 4000G232550 26002500 26002150 2250DP2800D5S20V 4000G632800 29002800 29002200 2300DP3000D5S20V 4000G63L3000 31003000 31002250 2350* Ratings refer to Marathon generators and different voltages from 380V to 11kV.

6 Ratings range covers the radiator options(mechanical radiator and electrical driven radiator) and generator options (oversized, derating optimized and medium Bild k annzurzeit 17 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedRATING ModelEngine3D Rating in kVA*40 C / 400m (NEA: 40 C / 100m)Fuel consumptionoptimizedTA-Luft optimizedNEA optimizedDS1650D5S12V 4000G231650 1700-1650 1700DS1750D5S12V 4000G231650 1850-1650 1800DS2000D5S12V 4000G631950 2050-1950 2000DS2250D5S16V 4000G232200 2350-2150 2300DS2500D5S16V 4000G632200 2600-2030 2250DS2650D5S20V 4000G232600 2900-2150 2400DS3100D5S20V 4000G633100 3150-2350 2500DS3200D5S20V 4000G63L3100 3400-2500 2600* Ratings refer to Marathon generators and different voltages from 380V to 11kV. Ratings range covers the radiator options(mechanical radiator and electrical driven radiator) and generator options (oversized, derating optimized and medium Bild k annzurzeit 18 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reserved05 MAIN COMPONENTS MTU Onsite Energy Systems GmbHAll rights reservedDas Bild k annzurzeit 19 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 SERIES 4000 engine: Main technical dataBore:170 mmStroke:210 mmDisplacement per lInjection system:Common railCompression :Single stageCompression system:dryElectronic:ADEC(Advanced Diesel EngineController) Smart ConnectSAM(Service Application Module)Cooling system.))

7 Separate dual-circuit coolingDas Bild k annzurzeit 20 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 in class Fuel Economy High efficient common rail injection system Injection pressure up to 1800 barMTU16V4000G23 CAT3516 BTAC umminsQSK 60-G4 Perkins4016-61 TRG2 PRP Rating [kWm]1,7981,7551,7301,774 Fuel consumption@ 100% load[g/kWh]188210190205 Fuel consumption@ 75% load[g/kWh]191208187206 Das Bild k annzurzeit 21 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 in Class Transient Response Frequency and voltage deviations according to performance class G3 as perISO 8528 100% load acceptance according to NFPA 110 Higher displacement of MTU engine lower turbo boost pressure necessary better transient performance Load acceptance of MTU engine: >70% (depending on on-site engineconditions) Load acceptance of competitor engines: regularly <70% (depending on on-siteengine conditions)Das Bild k annzurzeit 22 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 Reliability Low vibration characteristics less stress on engine and peripheral components High reliability due to high displacement engine concept in comparison to competitors lower mean effective pressure less stress on engine Long time before overhaul (TBO).

8 Exceeding 30,000 hours in continuous applicationsMTU16V4000G23 CAT3516 B TACumminsQSK 60-G4 Perkins4016-61 TRG2 PRP Rating [kWm]1,7981,7551,7301,774 Cylinders16161616 Displacement[liters] Bild k annzurzeit 23 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 Load Factors Prime Power 75% average load factor Emergency Standby Power 85% average load factor Higher load factors in comparison to competitors higher available powerMTU16V4000G23 CAT3516 B TACummins QSK60-G4 PRP Rating [kWm]1,7981,7551,730 PRP Load Factor75%70%70%Average availablepower [kWm]1,3491,2291,211 Das Bild k annzurzeit 24 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMTU SERIES 4000 De-rating Behaviour ADEC engine controller with Engine Site Condition Management System(ESCM) Higher availability of power for each application and site condition Full power up to 40 C and site altitude of 400m above sea levelDas Bild k annzurzeit 25 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights : Main supplier: Marathon Second supplier: Leroy Somer Leroy Somer Generators will be integrated as Release to Offer (RtO) Generators will be shown in price list Generators can be configured in IPAS Option is not 100% designed longer lead timesVoltageMarathonLeroy Somer380V / 400V / 415V RtO380V / 400V / 415 VOversized 11kV RtO - Standard Option - CustomizedRtO Release to OfferDas Bild k annzurzeit 26 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMARATHON Voltage Alternator.

9 Single-bearing Double bearing and rubber coupling forgensets with 20V4000 engine Damper cage/winding Disc coupling Brushless, self exiting, self regulating PMG excitation Digital voltage regulator 250% short circuit capability Heavy duty shielded ball bearings (min. lifeof 40,000 h), regreasable Ingress Protection: IP23 Insulation class H Anti-condensation heaters forgensets with 20V4000 engine Winding temperature sensors* Radio interference level N High load acceptance and lowvoltage dipStandard* In combination with Basler controller the analogue expansion module is required for the monitoring of the winding Bild k annzurzeit 27 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedMARATHON Voltage Alternator: Double bearing and rubber coupling forgensets Full amortisseur winding Disc coupling Brushless, self exiting, self regulating PMG excitation Digital voltage regulator 250% short circuit capability Heavy duty shielded ball bearings (min.)

10 Lifeof 40,000 h), regreasable Ingress Protection: IP23 Insulation class H Temperature rise class F Anti-condensation heaters Winding temperature sensors* Radio interference level N High load acceptance and lowvoltage dipOption* In combination with Basler controller the analogue expansion module is required for the monitoring of the winding Bild k annzurzeit 28 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedLEROY SOMER Voltage Alternator: Single-bearing Double bearing and rubber coupling forgensets with 20V4000 engine 2/3 pitch Disc coupling Brushless, self exiting, self regulating AREP / PMG excitation Analogue voltage regulator 300% short circuit capability Winding protection for tropicalenvironments Regreasable bearings Ingress Protection: IP23 Insulation class H Anti-condensation heaters forgensets with 20V4000 engine Winding temperature sensors* Radio interference level N High load acceptance and lowvoltage dipOption* In combination with Basler controller the analogue expansion module is required for the monitoring of the winding Bild k annzurzeit 29 / MTU Onsite Energy Systems GmbH / 12/16/2013 MTU Onsite Energy Systems GmbH / All rights reservedLEROY SOMER Voltage Alternator: Double bearing and rubber coupling forgensets 2/3 pitch winding Disc coupling Brushless, self exiting, self regulating AREP / PMG excitation Digital voltage regulator 300% short circuit capability Winding protection for tropical environments Regreasable bearings Ingress Protection: IP23 Insulation class H Temperature rise class H Anti-condensation heaters Winding temperature sensors* Radio interference level N High load accept