2. Power Plant Description

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2. Power Plant Description

The CLIENT has a requirement for the immediate supply of 50MW in three separate power stations. USP&E, a South Africa and US-based power supply group, has addressed the requirement and offers the following program in order to deliver the maximum energy as quickly as possible, while taking care of financial innovation requirements:

• 2 times 25MW mobile power stations

• Each mobile gas turbine includes a GE model TM2500)

This proposal provides the technical aspects and methodology of delivery. Volume 2, Commercial, details the pricing and contract terms.

A brochure on the GE TM2500 is included as Appendix A.

2.1 Requirement

The requirement stipulated by the CLIENT is understood to be:

• 2 times 25MW capacity mobile gas turbine power stations for immediate bridge power

• TM2500 Gas Turbine Generators operate on either natural gas or diesel

• An overall total of 50MW – expandable as required by adding additional TM2500s

• OEM or equivalent support and installation

All of the above is to be supplied as soon as possible, with delivery spaced to bring energy on stream smoothly in cooperation with the CLIENT.

2.2 Outline Concept

USP&E is able to supply 2 new GE TM2500 turbine units with immediate effect. These 25MW modular units will be deployed in two stages to commence supply immediately upon delivery. For rapid start, the units will be commissioned and run on diesel fuel (as supplied by the CLIENT in a quality as specified by the OEM) until LNG is available. This can be switched at any stage of the operation.

In order to start up three sites almost simultaneously, the project management and delivery team will aim to roll out as follows:

Phase 1:

a) Customer pays deposit as per Volume 2 Commercial b) Pre-deployment Engineering and Construction team arrive

i. Program Manager ii. Field Construction Engineers iii. General Operators iv Technical advisors and gas to power experts v. Millwrights

c) Site prepared, fuel storage work commences d) 2 units arrive and are installed and commissioned as follows:

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a. Site A: 1 Unit Installed b. Site B: 1 Unit Installed c. Site C: 1 Unit Installed (when available)

Note: USP&E will supply one 40MVA transformer with each gas turbine per voltages stated above. Additional information on the transformers is included in Section 2.6.8.

Once installed and running the 2 x TM2500 GTs will be ready for LNG conversion, as desired by CLIENT. CLIENT may wish to alter the scope and time, dependent on commercial restrictions and fuel LNG supply.

2.3 Plant Layout

The GE TM2500 gas turbine package requires a small footprint, using at minimum a 10m x 20m area. Very little advanced site preparation is required, and no foundation or concrete pad is necessary for installation of the unit.

Each TM2500 consists of two trailers, the main trailer and the auxiliary trailer, plus the auxiliary equipment. The inlet air filter assembly and exhaust duct assembly ship loose, and are assembled onto the main trailer during commissioning.

Known as GE's 'Power Plant on Wheels,' our TM2500 mobile aeroderivative gas turbine generator set is ideal for providing a base-load bridge to permanent power installations or for generating backup power in support of natural disaster relief, plant shutdowns, or equipment maintenance, with the capacity to produce more than 26MW of power. Equipped with GE’s proven LM2500 and engineered for flexibility and quick dispatch, the TM2500 is the go-to solution for fast, mobile power needs in almost any environment.

2.4 Features and Benefits

The GE TM2500 units offer CLIENT the following features:

• Available for both 50 Hz and 60 Hz applications • Full power within 10 minutes or less • Developed specifically to respond to fast and mobile power needs • Flexible operation on either natural gas or liquid distillate fuels • Dual, quick conversion between 50 Hz and 60 Hz with no reduction gear • Low emissions with demineralized water injection • Quick dispatch and easy to operate and maintain • Small footprint

The following drawing shows a typical layout arrangement of the TM2500.

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Additional layout drawings and single line diagrams are included as Appendix B. The following is a partial list of the included drawings:

• Site Grounding Plan

• Switchyard Grounding Plan

• Main Fuel Plan – Gensets

• Main Fuel Plan – Turbines

• Main Fuel Plan – Fuel Tanks

• Main Water Plan

• Fuel Piping and Instrumentation

• De-Mineralized Water Piping

• Fuel Details

• Electrical One Line Diagram

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2.5 Technical Details of the GE Turbine

The following graphic shows the technical data for the turbines.

The gas turbine is a General Electric LM2500PK MDW model ISO rated for continuous duty and configured for operation on either natural gas or liquid fuel. Each is configured for optional water injection for NOx reduction, if required. Altitude, humidity, and inlet and exhaust losses will affect power output and heat rate. In addition to the inlet air filter, the engine is equipped with a stainless steel mesh screen in the inlet air stream for "last chance" protection against foreign object damage. The engine is shock mounted for shipping and shipped in position, with the exception of the coupling spacer, which is installed during commissioning.

Below are the general descriptions, capacities, and capabilities for the LM2500, including associated support systems. Specifications are subject to design review meeting and OEM availability.

Gas Turbine Engine a) Manufacturer.....................................................................................................General Electric (GE) b) Model No. ........................................................................................................................ LM2500 PE c) Serial No. ....................................................................................................................See nameplate

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d) Type ................................................................................................................................ Gas turbine e) Engine Weight (Complete) ................................................................................................. 11,500 lb. f) Start System ............................................................................................... Hydraulic, variable speed g) Normal Power Turbine Speed.................................................................................... 3600/3000 rpm h) Gas Generator Speed, Maximum Rated.............................................................................. 9500 rpm AC Generator a) Manufacturer...................................................................................................Brush or equiv. (BEM) b) Model No. .................................................................................................................. BDAX62-170ER d) Type ................................................................................................................................... Air Cooled e) Power Factor .................................................................................................................................. 85 f) Voltage ............................................................................................................ 11 .5 kV (13.8 kV 60hz) g) Frequency........................................................................................................................ 60/50 Hz 3ø Turbine Hydraulic Starter System a) Hydraulic Pump Manufacturer.................................................................................Sauer Sundstrand b) Hydraulic Pump Model No. .............................. 905075KXINN80P45IC03GBA361024A-00-40-16575 c) Hydraulic Pump Capacity .................................................................................... 65 gpm @ 5200 psig d) Hydraulic Starter Motor Manufacturer ............................................................................. Marathon e) Hydraulic Starter Motor Model No................................................................ 7K445TSTFN6520 BAW f) Hydraulic Reservoir Capacity...................................................................................................... 40 gal g) Hydraulic Filters ......................................................................................... 10-μ element with bypass h) Cooler Pump Manufacturer............................................................................................... Sundstrand i) Cooler Pump Model ............................................................................................................... SNP2/08 j) Hydraulic Fluid Specification ........................................................................ MIL-H-17672 / ISO-VG46 k) Heat Exchanger Manufacturer ................................................................................................ Hayden l) Heat Exchanger Model.............................................................................................................. 020671 Ventilation and Combustion Air System Total Airflow....................................................................................................................... 150,000 scfm Turbine Intake ..................................................................................................................... 20,000 scfm Turbine Compartment ..........................................................................................................30,000 scfm Air Inlet Filtration System a) Manufacturer................................................................................................................................ Self b) Model No. .................................................................................................................................... N/A c) Ventilation Fan Manufacturer....................................................................................... TCF Aerovent d) Ventilation Fan Model No. ............................................................................... FTFA –06-056-3-1 -42 e) Pre-Filters P/N. ................................................................................................................. SNP/L1127 f) Bag Filters P/N.................................................................................................................. SN7S/L1127 Exhaust Silencer Trailer a) Manufacturer........................................................................................................................ McGuffy b) Model No. ................................................................................................................................ J04550 Gaseous Fuel System a) Input Required.................................................................. 250 MMBtu/hr natural gas, filtered to 3 μ b) Supply Pressure.............................................................................................................. 365–405 psig c) Supply Temperature................................................................................................ 250 °F, maximum d) Filter Manufacturer ........................................................................................................ ......... Indufil e) Filter Model No.................................................................................. IDGL3-7103ANSI-300IBS.RF Gas Fuel Flow-Control Valve a) Manufacturer.................................................................................................................... Woodward b) Model No. ............................................................................................................................ 8915-953 Liquid Fuel System a) Input Required............................................................................................. 40 GPM, filtered to 10 μ

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b) Supply Pressure...................................................................................................................20-40 psig c) Filter Manufacturer .................................................................................................................... Hilco d) Filter Model No...................................................................................................... 52312-521204026 Liquid Fuel Flow-Control Valve a) Manufacturer..................................................................................................................... Woodward b) Model No. .................................................................................................................................... TBD Generator Lube Oil System a) Reservoir Capacity.................................................................................................................... 150 gal b) Supply Filter Rating........................................................................................................... ...... 6 μ, abs c) Supply Filter................................................................................................ Hilliard, 01518-0150-1001 d) Cooling.................................................................................................................................... Fin/Fan e) Heat Exchanger Manufacturer/Model................................................................... Honeywell/TT-530 f) DC Lube Oil Pump Manufacturer/Model ............................................................. Whitton/8005-1190 g) Mechanical Pump Manufacturer/Model ................................................ IMO/ACE038N2NVBP-A101 Turbine Lube Oil System a) Reservoir Capacity................................................................................................................... 150 gal b) Supply Filter Rating................................................................................................................. 6 μ, abs c) Supply Filter.................................................................................................. Hilco, 01414-521401002 d) Scavenge Filter Rating ........................................................................................................... 6 μ, abs e) Scavenge Filter............................................................................................ Hilco, 01414-5211401002 f) Cooling...................................................................................................................................... Fin/Fan g) Heat Exchanger Manufacturer/Model No............................................................... Honeywell/TT530 h) Lube Oil Specification .............................................................................. MIL-L-23699 or MIL-L-7808 Fire Suppression and Gas Detection System a) Manufacturer.......................................................................................................... Terra/ Wilson Fire b) Model No. ......................................................................................................... WFCP8001I1RAFM20 c) Fire Suppressant............................................................................................................... CO2 system d) Thermal Spot Detectors ......................................................................... Two, 450 °F plus rate of rise e) Combustible Gas Detector ........................................................... Three, analog, methane-detecting Turbine Water Wash System a) Water Supply Pressure....................................................................................................... 15–65 psig b) Tank Capacity ............................................................................................................................ 40 gal c) Filter....................................................................................................................................... 40 μ, abs d) Detergent................................................................................. Added in solution with water wash in proportions as specified by manufacturer of detergent Control Systems Fuel Control System a) Manufacturer................................................................................................................... Woodward b) Model No. ...................................................................................................................... Netcon 5000 Modular Automatic Voltage Regulator a) Manufacturer................................................................................................. FKI Rotating Machines b) Model No. ....................................................................................................................... 9650114305 Integrated Generator Protection a) Manufacturer...................................................................................................................... Beckwith b) Model No. ............................................................................................................................. M-3420 Vibration Monitor a) Manufacturer........................................................................................................ AB/Bently Nevada b) Model No. .................................................................................................. 3300 Interface Computer a) Manufacturer............................................................................................................................... TBD

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Motor Control Center a) Manufacturer............................................................................................................ General Electric b) Model No. .................................................................................................................................. 8000 Switchgear a) Manufacturer..............................................................................................................General Electric b) Model No. ............................................................................................................................... E99014 Battery System a) 24VDC Unit Control Panel Backup Cell Capacity (Nominal) ............................................................................................................... 323 Ah Cell Voltage (Nominal)................................................................................................................ 1.2 VDC Electrolyte ................................................................................................ Diluted Potassium Hydroxide Discharge Time (Typical) ..................................................................................................... 3 hr @ 101A Cell Type....................................................................................................................... Nickel-Cadmium Battery Voltage ........................................................................................................................... 24 VDC Charger........................................................................................................................... 24 VDC @ 150A b) 24VDC Fire Suppression and Gas Detection System Cell Capacity (Nominal) ................................................................................................................. 56 Ah Cell Voltage (Nominal)................................................................................................................ 1.2 VDC Electrolyte ...........................................................................................……Diluted Potassium Hydroxide Discharge Time (Typical) .................................................................................................. 24 hr @ 2.24A Cell Type....................................................................................................................... Nickel-Cadmium Battery Voltage ........................................................................................................................... 24 VDC Charger............................................................................................................................. 24 VDC @ 25A c) 125VDC Switchgear Control Cell Capacity (Nominal) ................................................................................................................. 56 Ah Cell Voltage (Nominal)................................................................................................................ 1.2 VDC Electrolyte ................................................................................................ Diluted Potassium Hydroxide Discharge Time (Typical) .................................................................................................... 3 hr @ 16.9A Cell Type........................................................................................................................ Nickel-Cadmium Battery Voltage ......................................................................................................................... 125 VDC Charger........................................................................................................................... 120 VDC @ 12A

Each unit will require a 300meter 33kW cable.

2.5.1 Turbine Enclosure

The equipment package is supplied with a weatherproof acoustic enclosure for the gas turbine. The enclosure is completely assembled and mounted over the equipment prior to testing and shipment. Provisions for turbine removal and personnel access are included. The turbine compartment is fully ventilated by 2 x 100% ventilation fans (provided in the air filter).

2.5.2 Main Trailer

The main trailer consists of a main trailer and jeep. A six-axle, air ride suspension trailer (3+3) and a 3-axle jeep are used to transport the main trailer components. The trailer and jeep combination is approximately 108’ (32.9m) long (excludes customer supplied tractor) during transport and weighs approximately 210,000 pounds (95,254 kg) fully loaded.

At the jobsite, the jeep and trailer gooseneck are removed as well as the 3 rear axles of the trailer. With these pieces removed, the main trailer is approximately 60’ (18.1m) long during operation. Ten

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landing legs are provided to support and level the equipment at the jobsite. Appropriate site foundation is not part of the scope of supply.

Pictures of the trailer units are shown below.

2.5.3 Auxiliary Trailer

The auxiliary trailer is approximately 48’ (14.6 m) long and 8’-6” (2.6 m) wide and weighs approximately 46,000 pounds (20,865 kg) fully loaded. The trailer is provided with a tandem air ride suspension and includes the equipment listed below. Four landing legs are provided to support and level the trailer at site.

2.5.4 Auxiliary Trailer Skid

The auxiliary trailer skid includes fuel and water injection system components not mounted on the main trailer. The pumps, filters and necessary instrumentation are connected to the main trailer components at site with interconnect hoses. The auxiliary trailer skid also includes the hydraulic start system and water wash system described below.

2.5.5 Generator

The generator is an air-cooled, open air, 2-pole, 50/60 Hz, 0.85-.99 PF (lagging) capable brush generator. The generator includes a brushless excitation system with permanent magnet generator. Neutral, line side cubicles, medium voltage switchgear are included. The generator is hard mounted to a base on the main trailer and includes generator air inlet filtering and air silencing.

2.5.6 Fuel System

The gas turbine, auxiliary equipment, and controls are all configured for gas, liquid, or dual fuel operation. The TM2500+ is supplied with a natural gas fuel system using an electronically controlled fuel-metering valve. For full-load operation, the gaseous fuel must be supplied to the auxiliary trailer skid connection at: 250 MMBtu/hr Max; 250 °F [121 ° C] Max; 520, +/- 20 PSIG [3585 +/- 138 kPaG; and filtered to 3 Microns. The buyer must provide gas fuel that is clean, filtered and compliant with General Electric specification MID-TD-0000-1.

The package is also equipped with a liquid fuel system. Typical liquid fuels include DF1, DF2, or JP4. For full-load operation, buyer must supply liquid fuel to the connection at the auxiliary trailer skid at 40 GPM [151.4 L/min], 30 ± 10 PSIG [207 ± 69 kPaG], filtered to 5 Microns and at least 20°F (11°C) above the wax point temperature. CLIENT must provide liquid fuel that is clean, filtered and compliant with General Electric specification MID-TD-0000-2. All necessary shutoff valves, flow meter, piping and instruments between the Auxiliary Trailer Skid connection and the engine are

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included. Buyer must provide supply piping with sampling ports, fuel system filtration and applicable shut-off valves and containment per local codes and standards.

2.5.7 Water Injection System

The equipment package is capable of water injection for NOx reduction. For full-load operation, the demineralized water must be supplied to the Auxiliary Trailer Skid connection at 28 GPM [106 L/min], 15 PSIG [103 kPaG] Minimum, 40 to 140 °F [4 to 60 °C) filtered to 10 Microns. The buyer must provide demineralized water that is clean, filtered and compliant with General Electric specification MID-TD-0000-3. All necessary shutoff valves, flow meter, piping and instruments between the Auxiliary Trailer Skid connection and the engine are included. CLIENT must provide supply piping with sampling ports, fuel system filtration and applicable shut-off valves and containment per local codes and standards.

2.5.8 Lube Oil System

The equipment package is supplied with two separate lube oil systems; one for the gas turbine and one for the generator. The oil reservoirs and piping are all stainless steel, and the lube oil system valves have stainless steel trim. Each lube oil system has a pump, simplex filters, necessary valves and instrumentation, and thermostatic-controlled electric heaters. A dual fan, single core fin fan cooler is provided to cool turbine, generator lube oil and hydraulic oil. The cooler is mounted on the Auxiliary Trailer and the rest of the lube oil systems are mounted on the Main Trailer. CLIENT to provide any additional containment per local codes and standards.

2.5.9 Switchgear

The equipment package is supplied with a 3 section NEMA 3R switchgear enclosure. The switchgear includes a set of generator circuit breaker equipment, 2 sets of incoming line voltage monitoring equipment, a marshaling cabinet and a set of switchgear accessories. Permanent cable terminations from the neutral and line-side of the generator are also included. CLIENT is only required to connect the 11/13.8 kV power cables at site.

2.5.10 Electro-Hydraulic Start System

The equipment package is supplied with a hydraulic starting system, which includes an electric motor driven hydraulic pump assembly, filters, a cooler and controls, mounted on the auxiliary equipment module. A hydraulic motor is also mounted on the gas turbine accessory gearbox to turn the gas generator shaft. All piping and fittings on the base plates, plus hydraulic connections between the auxiliary equipment module and the main base plate are also furnished.

2.5.11 “Off Line” Soak Wash System

The equipment package is supplied with an "off-line" cleaning system, with a water wash reservoir and all necessary filters and instrumentation supplied. Buyer is required to provide purified water to the standards listed in the water injection system.

2.5.12 Fire Protection System

The equipment package is supplied with an installed fire protection system complete with hydrocarbon sensing and thermal detectors, piping and nozzles in the engine compartment. The fire protection system includes cylinders containing CO2 mounted on the Auxiliary Trailer. An included

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24 VDC battery and charger powers the fire protection system (located in the control house.) All alarms and shutdowns are annunciated at the unit control panel. An alarm sounds at the turbine if the gas detectors detect high gas levels, or if the system is preparing to release the CO2. When activated, the package shuts down, and the primary CO2 cylinder is discharged into the turbine compartment via multiple nozzles, and the ventilation dampers automatically close. After a time delay and if required, the reserve supply of CO2 is discharged.

2.5.13 Fin Fan Cooler

The equipment package is supplied with a 100% redundant dual fan, single core cooler with separate coils for the turbine, generator lube oil and hydraulic oil. The cooler is equipped with all interconnect piping and instrumentation necessary for the three circuits.

2.5.14 Control House

The basic equipment package is supplied with a lighted, insulated 23’ (7 m) long by 8’-6” (2.6 m) wide control house. The control house is equipped with an access door, air conditioner/heater, and a hand held fire extinguisher. The control house is used to package the equipment listed below.

2.5.15 Digital Control System

The control system features an integrated electronic fuel management system with a PLC based programmable sequencer, vibration monitor, fire system monitor, digital meter, and a digital generator protective relay module. A desktop or laptop PC with separate workstation and chair is provided for HMI control. Alarm and shutdown events are displayed on the HMI automatically. An included dedicated 24V DC battery system with dual 100% capacity chargers powers the control panel.

2.5.16 Generator Protective Relays

The equipment package is supplied with two (2) Integrate Generator Protection System (IGPS) microprocessor-based relay modules, mounted in the turbine control panel. The IGPS are configured for 50Hz or 60Hz, to be selected at site. The IGPS includes all functions necessary for protection of the generator.

2.5.17 Unit Motor Control Center

A freestanding lineup of motor controls for all TM2500+ package motors is supplied. The motor control center is installed in the control house and also includes a 45 kVA lighting and distribution transformer.

2.5.18 Battery and Charger System

The equipment package is supplied with a 24 VDC NiCad battery system for control power and fire system and charger for each. In addition a 125 VDC NiCad battery system with charger is supplied for the generator lube pump. The 125VDC battery charger has a selector switch to receive power from either the MCC or an external generator to charge the batteries. The battery systems are fully wired and mounted in racks and are installed in the control house along with the wall-mounted chargers.

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2.5.19 Gas Turbine Air Filter Assembly

The air filter is approximately 27’ (8.2 m) long and 8’-6” (2.6 m) wide and weighs approximately 20,000 pounds (9072 kg) fully loaded. The air filter is equipped with a two-stage filtration system for both ventilation and combustion air with panel type pre-filters housed in hinged doors and high efficiency bag barrier filters. Vane separators are installed in front of, and behind, the filtration system and include inlet silencers. An inlet plenum with access door is provided for access to the FOD screen and commissioning screen.

Ventilation fans for the turbine enclosure are installed in the air filter assembly. Two 100% fans are installed and are equipped with back draft dampers. All of the items listed are housed in the filter house that is complete with access panels for maintenance, separate air paths and turning vanes and the necessary instrumentation. For connection to the Main Trailer, the air filter is hard mounted directly on top of the combustion and ventilation inlet plenum.

2.5.20 Gas Turbine Exhaust Assembly

The exhaust is approximately 17’ (5.2 m) long and 10’-3” (3.1 m) wide and weighs approximately 20,000 pounds (9,072 kg) fully loaded.

2.5.21 Grounding

Each trailer is supplied with grounding pads for inter-connection between each trailer to a grounding grid. Completing the trailer-to-trailer ground inter-connection the connections to site grounding grid are not included. The grounding grid must be compliant with the General Electric “Specification for Grounding of Mobile Generation Unit.”

2.6 Balance of Plant Equipment

Our proposal also includes the balance of plant equipment needed for operations at the Client Plant Locations. Inclusion of the BOP items provides substantial cost savings to the CLIENT for this project.

By working exclusively with USP&E and our partners, CLIENT will have one point of contact for all matters relating to BOP activities and equipment. The tables below provide an initial itemization of the BOP items for each plant location.

The following is the list of Balance of Plant (BOP) which will be included for each of three (3) sites within the CLIENT Project Region (CPR).

2.6.1 Site (A) TBD: 1 by TM2500; Balance of Plant

Unit Quantity Supply and Install Equipment:

1 Transformers 1.1 40MVA 30/11kV, ONAF Generator Step Up Transformer (Ynd 11). ea. 1 1.2 Tx connection box and FSU ea. 1 1.3 2000A, 11kV Generator Circuit Breakers (In TM package) ea. 1 1.4 2 MVA, 11/0.4kV, ONAN YNd11 ea. 1

2 30kV indoor substation (3150A/25kA)

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Unit Quantity 2.1 MV Switchgear

2.1.1 GSU incomer (1500A) ea. 1 2.1.2 Outgoing feeder (1500A) ea. 1 2.1.3 Bus coupler (3150A) ea. 1

2.2 Control and Protection: 30kV scheme

2.2.1 Feeder 1 2.2.2 Gen Transformer 1 2.2.3 Bus Coupler 1 2.2.4 HMI, SCADA 1 2.2.5 Setting Study 1

3 Electrical BOP

3.1 Cabling MV Cables 3.1.1 630mm² XLPE PVC 11kV Unarmoured m 500 3.1.2 300mm² XLPE 11kV SWA 3 Core m 0 3.1.3 95mm² XLPE 11kV SWA 3 Core m 100 3.1.4 Control Cable lot. 1

3.2 Terminations (MV)

3.2.1 630mm² XLPE 11kV Indoor lot. 0 3.2.2 630mm² XLPE 11kV Outdoor lot. 60 3.2.3 300mm² XLPE 11kV Indoor, Outdoor Set. set 0 3.2.4 95mm² XLPE 11kV Indoor, Outdoor Set. set 4

3.3 LV Distribution and BSDG

3.3.1 BSDG (1000kVA) ea. 2 3.3.2 Standby switch board ea. 1 3.3.3 MDB 2 Section incl c/o ea. 1 3.3.4 LV Cabling (per GT) lot. 1 3.3.5 LV Cabling (BOP and BSDG) lot. 1 3.3.6 LSP panels lot. 1 3.3.7 MCCs lot. 1

3.4 Lighting Masts

3.4.1 21m Lighting Mast ea. 4 3.4.2 400W HPS ea. 16 3.4.3 Cabling ea. 4

3.5 UPS and Batteries

3.5.1 DCS UPS system 20kVA ea. 1 3.5.2 Admin UPS system 20kVA ea. 1

3.6 Station earthing and CPS

3.6.1 Station earthing system lot 1 3.6.2 Cathodic Protection System lot 1

3.7 Security, Comms, Fire Detection and BOP DCS

3.7.1 Telephone System lot 1 3.7.2 Admin LAN lot 0

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Unit Quantity 3.7.3 Satellite Connection (Assumed not required) lot 0 3.7.4 Fibre Optic and Comms Cabling lot 1 3.7.5 Security and Access Control System lot 1 3.7.6 Surveillance System lot 1 3.7.7 Intercom System (Assumed not required) lot 0 3.7.8 Fire/Smoke Detection System lot 1 3.7.9 BOP DCS including cabling and marshalling boxes lot 1

4 Mechanical BOP

4.1 Service and Instrument air 4.1.1 Compressors, dryers, receivers lot 1 4.1.2 Distribution per GT lot 1

4.2 Liquid fuel storage, conditioning and distribution

4.2.1 Liquid fuel supply to site boundary (By others) lot. 0 4.2.2 Liquid fuel filtering system lot. 1 4.2.3 Liquid fuel daytanks (1000m3) lot. 1 4.2.4 Distribution per GT lot. 1

4.3 Gas conditioning

4.3.1 Gas letdown and metering station lot. 0 4.3.2 Distribution per GT lot. 0

4.4 Raw water system

4.4.1 Raw water supply (By others) lot. 0 4.4.2 Raw/ fire water tank lot. 1 4.4.3 Service water distribution lot. 1

4.5 Fire water system

4.5.1 Pumps (1 diesel, 1 electric, 2 jockey) lot. 1 4.5.2 Distribution lot. 1 4.5.3 Hydrants/ hose reels lot. 1 4.5.4 Extinguishers lot. 1 4.5.5 GSU spray protection lot. 1 4.5.6 Tank spray and foam protection lot. 1

4.7 Misc mechhanical

5 Engineering and site staff

5.1.1 Engineering (See Note 4 below) lot. 1 5.1.2 Site staff (Man months) lot. 2

2.6.2 Site (B) TBD: 1 by TM2500; Balance of Plant


1 Transformers

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Unit Quantity 1.1 70MVA 30/11kV, ONAF Generator Step Up Transformer (Ynd 11). ea. 1 1.2 Tx connection box and FSU ea. 1 1.3 2000A, 11kV Generator Circuit Breakers (In TM package) ea. 1 1.4 2 MVA, 11/0.4kV, ONAN YNd11 ea. 1


2.1 MV Switchgear 2.1.1 GSU incomer (1500A) ea. 1 2.1.2 Outgoing feeder (1500A) ea. 1 2.1.3 Bus coupler (3150A) ea. 1



3 Electrical BOP






3.4 Lighting Masts


3.5 UPS and Batteries



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Unit Quantity 3.6.1 Station earthing system lot 1 3.6.2 Cathodic Protection System lot 1


3.7.1 Telephone System lot 1 3.7.2 Admin LAN lot 0 3.7.3 Satellite Connection (Assumed not required) lot 0 3.7.4 Fibre Optic and Comms Cabling lot 1 3.7.5 Security and Access Control System lot 1 3.7.6 Surveillance System lot 1 3.7.7 Intercom System (Assumed not required) lot 0 3.7.8 Fire/Smoke Detection System lot 1 3.7.9 BOP DCS including cabling and marshalling boxes lot 1

4 Mechanical BOP









4.5.1 Pumps (1 diesel, 1 electric, 2 jockey) lot. 1 4.5.2 Distribution lot. 1 4.5.3 Hydrants/ hosereeels lot. 1 4.5.4 Extinguishers lot. 1 4.5.5 GSU spray protection lot. 1 4.5.6 Tank spray and foam protection lot. 1



5.1.1 Engineering (See Note 4 below) lot. 1 5.1.2 Site staff (Man months) lot. 2

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2.6.3 Site (C) TBD: 1 by TM2500; Balance of Plant


1 Transformers 1.1 70MVA 30/11kV, ONAF Generator Step Up Transformer (Ynd 11). ea. 1 1.2 Tx connection box and FSU ea. 1 1.3 2000A, 11kV Generator Circuit Breakers (In TM package) ea. 1 1.4 2 MVA, 11/0.4kV, ONAN YNd11 ea. 1


2.1 MV Switchgear 2.1.1 GSU incomer (1500A) ea. 1 2.1.2 Outgoing feeder (1500A) ea. 1 2.1.3 Bus coupler (3150A) ea. 1



3 Electrical BOP






3.4 Lighting Masts


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Unit Quantity 3.5 UPS and Batteries



3.6.1 Station earthing system lot 1 3.6.2 Cathodic Protection System lot 1


3.7.1 Telephone System lot 1 3.7.2 Admin LAN lot 0 3.7.3 Satellite Connection (Assumed not required) lot 0 3.7.4 Fibre Optic and Comms Cabling lot 1 3.7.5 Security and Access Control System lot 1 3.7.6 Surveillance System lot 1 3.7.7 Intercom System (Assumed not required) lot 0 3.7.8 Fire/Smoke Detection System lot 1 3.7.9 BOP DCS including cabling and marshalling boxes lot 1

4 Mechanical BOP









4.5.1 Pumps (1 diesel, 1 electric, 2 jockey) lot. 1 4.5.2 Distribution lot. 1 4.5.3 Hydrants/ hosereeels lot. 1 4.5.4 Extinguishers lot. 1 4.5.5 GSU spray protection lot. 1 4.5.6 Tank spray and foam protection lot. 1



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Unit Quantity 5.1.1 Engineering (See Note 4 below) lot. 1 5.1.2 Site staff (Man months) lot. 2

2.6.4 BOP: Lighting

Lighting will be provided indoors in buildings and in outdoor areas. Illumination levels shall be as follows, measured at 1 meter above grade or the floor level in rooms:

Location Illuminance (lux) Control Room areas Operational areas 400 Rear of panels 200 Auxiliary rooms 250 Outside exits 50 Operational areas 200 Outside exits 50 Compressor houses Operational areas 200 Outside exits 50 General Outdoor operational areas 50 Outdoor non-operational areas and roads

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Platforms, footpaths, ladders and staircases

30

Workshops 250 (400 on benches) Laboratories 400 Stores/Warehouses 100 Offices 400 Accommodation rooms 150 First aid room 400

Indoor Lighting Systems

Indoor lighting is provided by high efficiency and power factor corrected fluorescent lighting. Normal and life safety lighting will be provided. Normal lighting provides an adequate illumination level to enable the safe completion of tasks to be performed in each area. Emergency lighting provide means of fittings complete with integral battery mounted at suitable positions on escape ways and stairwells. They will be so located that in the event of power failure, escape routes are lit and danger to personnel is prevented. These fixtures will be the maintained type and have built-in batteries sized for 30 minutes of operation at ambient conditions. Escape routes will be provided in all buildings so as to lead the personnel out of the building along defined escape routes.

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Outdoor Lighting Systems

Outdoor area lighting will be provided by mast, column, or pole-mounted floodlights. Floodlighting poles are hinged to allow the poles to be lowered manually for maintenance and provided with junction boxes in a compartment in the base of the pole. As far as possible, poles will be located outside hazardous areas. Where necessary, junction boxes will be certified for the hazardous area. Floodlighting will be provided with self-contained control gear. As luminaries will be located at a high level, above any hazardous area, they will be of standard industrial type. Materials for lighting poles and luminaries will be selected to suit the environmental conditions and the required lifetime of the facilities. Outdoor lighting will also be provided external to all buildings by means of fluorescent bulkhead luminaries. Where they are located over doorways and escape routes they will be complete with integral battery as detailed above for escape lighting in buildings.

2.6.5 BOP: Security

USP&E recognizes that plant security is an important aspect of your power plant project. USP&E will employ security personnel to provide numerous duties at the site, such as monitoring all personnel, visitors, contractors, and employees. No one should be allowed onto the project premises without a proper gate pass.

Equally important is monitoring fuel security. USP&E will ensure that there are security personnel constantly on watch to prevent fuel theft. Fuel usage logging and computerized monitoring systems will be employed to further minimize any chances of fuel theft and misuse.

2.6.6 BOP: Actom Transformers

ACTOM Power Transformers, based in Wadeville, Germiston, South Africa, has manufactured power transformers for over 50 years. The basic designs have been developed and refined over the years from the original companies, English Electric, First Electric, Johnson & Phillips, GEC Alsthom and Bonar Long, that were amalgamated to make up the present ACTOM Group in South Africa.

ACTOM South Africa manufactures transformers from 16 kVA up to and including 315 MVA with voltages up to 275 kV. These transformers are supplied to electricity distribution utilities, the mining sector, industrial plants, public works authorities and turnkey

contractors. The power transformers are mostly of the step-down type, equipped with on-load tap changers, either naturally cooled or, for larger units, incorporating forced oil and air-cooling.

The basic units are of three-phase, three-limb construction, comprising fully mitred low-loss cores of the boltless type with disc HV and helical or disc LV and tapping windings.

For this project, USP&E recommends either the 40MVA units or the 80MVA units. The CLIENT would require one unit for each of the 16 gas turbines.

Layout drawings of the 40 and 80MVA units are shown on the following pages. A brochure on the Actom Transformers is included as Appendix C.

Actom transformers are South African

manufactured, Utility (Eskom) approved.

They are standard high voltage transformers for

use in Libya.

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40MVA Actom Transformer Layout

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80MVA Actom Transformer Layout

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2.7 GE TM2500 Gas Turbine Package Options

USP&E is pleased to offer the following options for the GE TM2500.

2.7.1 Option 1: Ocean & Inland Freight to Job Site

Can provide shipment of the entire package directly to the site for an additional fee.

2.7.2 Option 2: Fogging System

Fogging boosts engine performance and efficiency using a spray inter-cooling design that significantly increases mass flow by cooling the air during the compression process. The system is based on an atomized water spray injected through spray nozzles placed at two locations, one between the high pressure and low pressure compressors, and the second at the inlet bell mouth. Water is atomized using high pressure air. The water flow rate is metered, using the appropriate engine control schedules and, at the inlet bell mouth and inter-stage portions, on fogging alternate operation based on turbine inlet temperature.

2.7.3 Option 3: Evaporative Cooling

For Applications when high dry bulb temperatures are common at low relative humidity, evaporative cooling can be utilized to lower entering DB temperature, thus increasing power output of the package.

2.7.4 Option 4: Inlet Air Anti-Ice

An Anti-Ice System is recommended to allow safe operation during icing/winter conditions. This system includes valves and ducting to direct gas turbine enclosure ventilation exhaust air to the gas turbine inlet air filter.

2.7.5 Option 5: High Performance Heating Chilling

Combines the Anti-Ice System with inlet chilling for winter and summer operations. Lowering combustion air inlet temperature can increase the kWe output of the generator set.

2.7.6 Option 6: Pulse Filters

Filters pulsed with compressed air for sites with high particulate in the outside air (dust, etc.).

2.7.7 Option 7: HRSG & Steam Production w/SCR

Heat Recovery Steam Generator with Selective Catalytic Reduction to boost power and reduce NOx emissions to less than 25ppmvd.

2.7.8 Option 8 : Exhaust Silencer & Stack Assembly

Modified exhaust and larger stack assembly built to customer requirements.

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2.7.9 Option 9a: SCR System with Ammonia Grid

Selective Catalytic Reduction for reduced NOX emissions.

2.7.10 Option 9b: CO Grid

2.7.11 Option 10: Black Start System

Includes a 600 kWe diesel generator set and battery cranking system for black starts. The diesel generator provides 480 VAC power for ventilation fans, accessories and starter motor. A larger diesel generator set may be required if a natural gas fuel compressor or other special auxiliaries must be operated during the starting sequence. The black start diesel generator set is furnished in accordance with Manufacturer Diesel Generator Set Specifications.

2.7.12 Option 11: Water Washing

Special option with inlet fogging.

2.7.13 Option 12: Off-base Fin-Fan Coolers

This replaces the standard plate and frame coolers for the lube oil system. A simplex core fin-fan coolers, complete with changeover valve mounted on a separate base plate is supplied. Cooler is dual fan and installed on a separate foundation: This replaces the standard plate and frame coolers for the lube oil system.

2.7.14 Option 13: Shell & Tube Oil Coolers

This replaces the standard plate and frame coolers for the lube oil system.

2.7.15 Option 14: Natural Gas Fuel System

Standard fuel system.

2.7.16 Option 15: Liquid Fuel System

The gaseous fuel system is replaced by a liquid fuel system. Typical liquid fuels Include DFI, DF2, JP4, Naptha, or Kerosene. Customer must supply liquid fuel to the connection at the fuel boost module at 20-50 psig (138-345 kPag) and at least 200F (11 OC) above the wax point temperature. Customer supplied fuel must be clean, filtered and meet the fuel specifications. Customer must supply interconnection piping from boost module to main base plate.

2.7.17 Option 16: Dual Fuel System

When specified, the package is delivered with two independent fuel systems. This could include two gaseous fuels, two liquid fuels or one gaseous and one liquid fuel. Changeover may be initiated manually at the unit control panel, or automatically, if the operating fuel supply pressure should gradually decrease.

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2.7.18 Option 17: Steam Injection System

A steam injection system is required in conjunction with the HRSG option to boost power and decrease NOx emissions.

2.7.19 Option 18: Water Injection System

For applications with NOx emissions limitations, water injection may be required. A water injection system consists of inlet strainer, valves, piping and controls. Customer must provide a supply up to 55 gpm of purified water on gas fuel and up to 78 gpm of purified water on liquid fuel per water specifications to the water injection skid at 5 to 50 psig (34.5 - 345 kPag). The minimum customer supplied pressure and temperature determined by the water injection rate required and the type of fuel nozzle utilized.

2.7.20 Option 19: Smart Extra Computer & Printer

Manufacturer can furnish a remote workstation, as part of the control system. The module consists of high performance desktop PC system equipped with a serial port for communication with the control system, animated graphical displays of the turbine, generator, and auxiliary system analog and digital parameters, historic logging and trending system that can store/display up to 30 days of historical data, periodic reports, and capability to start, stop, and control the gas turbine generator system.

2.7 Inspection Process

The power packs are located in the USA and can be inspected prior to shipping, ex works, in accordance with the schedule in Volume 2 Commercial. On release of the deposit, a travel package (included in price) will be forwarded for up to 4 personnel to travel and remain on site for 2 weeks to cover inspection and shipping protocols.

2.9 Fuel Usage Estimate

As a core benefit of our professional commissioning and O&M service platform, USP&E has a robust fuel efficiency optimization program that uses known techniques to reduce fuel consumption over time. Below are estimates of fuel consumption will be realized using the GE TM2500s:

GE TM2500

50Hz, 26,190kW*6, Eff = 37%

Diesel consumption = 227g/kWh @ ISO

For load of 125MW, 24hrs * 365 days:

Yearly diesel consumption = 285,092,473 liters

Monthly diesel consumption = 23,757,706 liters

Daily diesel consumption = 781,075 liters

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2.10 Fuel Oil Storage Facilities

USP&E is prepared to offer the following fuel oil storage facilities at up to 5 sites in Libya:

• Site erected single-wall, non-bunded fuel storage facilities for up to 30 days of run-time using LFO.

• Each 125MW power station will also have an industrial grade, welded fuel farm with 25M liter capacity.

• USP&E will supply three 25M L fuel farms and one 1M L mobile fuel farm as directed.

2. Power Plant Description

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Transcript of 2. Power Plant Description