Exhibit 10.4
EXHIBIT A
SPECIFICATION
A. SCOPE OF WORK
1.0 PROJECT OVERVIEW AND SITE DESCRIPTION
2.0 SCOPE OF RESPONSIBILITIES
2.1 Project Management
2.2 Technical Data
2.3 Procurement
2.4 Construction
2.5 Commissioning and Performance Verification
3.0 SCOPE OF FACILITIES
3.1 Power Block
3.2 Balance of Plant Systems
3.3 Electrical Systems
3.4 Plant Control System
3.5 Utility Systems
3.6 Buildings and Roads
3.7 Temporary Construction Utilities
3.8 Lubrications / Oils / Chemical / Gases
B. PERFORMANCE GUARANTEES AND VERIFICATION PROCEDURES
1.0 PURPOSE
2.0 PLANT PERFORMANCE TESTS
2.1 Performance Guarantees
2.2 Performance Bonus
2.3 Electrical Output
2.4 Heat Rate
2.5 Auxiliary Loads
2.6 Guaranteed Performance Conditions for Electrical Output and Heat
Rate
2.7 Conduct of Verification
2.8 Verification Procedures
2.9 Acceptance Criteria
2.10 Deadband Applied to Performance Guarantees
Exhibit A 10-13-04
Page 1 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
2.11 Deadband Applied to Performance Bonus
3.0 THREE DAY RELIABILITY TEST
3.1 Reliability Test
3.2 Reliability Factor
3.3 Acceptance Criteria
4.0 ENVIRONMENTAL COMPLIANCE
4.1 Compliance Tests
5.0 UTILITY ACCEPTANCE TESTS
C. TRAINING PROCEDURES
1.0 PURPOSE
2.0 OPERATOR TRAINING BY CONTRACTOR
3.0 OPERATOR TRAINING BY OWNER
D. FACILITY ASSESSMENT
1.0 PURPOSE
E. ATTACHMENTS
1.0 SITE PLAN AND PLOT PLAN
2.0 PROCESS FLOW DIAGRAMS AND P&IDS
3.0 EQUIPMENT LIST
4.0 ELECTRICAL ONE-LINE DIAGRAMS
5.0 FIRE PROTECTION DESIGN CRITERIA
6.0 RAW (WELL) WATER ANALYSIS
7.0 PERFORMANCE VERIFICATION PLAN
8.0 PERFORMANCE FUEL - NATURAL GAS ANALYSIS
9.0 STRUCTURAL DESIGN CRITERIA
10.0 ELECTRICAL DESIGN CRITERIA
11.0 WATER SYSTEMS DESIGN CRITERIA
12.0 BUILDING PLANS
13.0 INTERFACE PLAN (OWNER/CONTRACTOR INTERFACE POINTS)
14.0 ASSESSMENT EFFORT
15.0 LIST OF MATERIAL AT SITE
Exhibit A 10-13-04
Page 2 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
16.0 PLANT MANUAL
17.0 AUXILIARY LOAD LIST (PERFORMANCE GUARANTEE / PERFORMANCE BONUS)
18.0 AIR PERMIT (AUTHORITY TO CONSTRUCT)
Exhibit A 10-13-04
Page 3 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
A. SCOPE OF WORK
1.0 PROJECT OVERVIEW AND SITE DESCRIPTION
The project consists of engineering, procurement, construction and
commissioning a combined cycle power plant producing a nominal 1,160
MW. The Facility design is a four-on-two combined cycle
configuration utilizing four (4) GE 160 MW F-class advanced
combustion turbine generators (CTG) with inlet air chillers, four
heat recovery steam generators (HRSGs) with duct burners, and two
(2) GE 300 MW steam turbine generators (STG). The steam turbine
exhaust shall be condensed in an air-cooled condenser. The Site Plan
and Plot Plan are included as Attachment 1. General Facility
overview is reflected in the Process Flow Diagrams included as
Attachment 2 and the electrical One-Line Diagrams included as
Attachment 4. Major mechanical equipment is listed in the Equipment
List included as Attachment 3. The 4 x 2 Facility will be designed
to operate as two separate 2 x 1 Power Blocks.
The above information is included to establish the basis for the
Scope of Work. It is intended to be a representation of the general
requirements for the facilities. The Approved for Construction
information shall incorporate details developed during the
engineering and design effort and may differ from the information
presented in the general requirements.
Power shall be exported through a 525 kilovolt transmission system
into the existing grid. The new plant transmission lines shall be
contracted separately by Owner to accommodate the export of the
generated power.
Process make-up water shall be supplied from two water wells. The
effluent streams from the Facility shall be routed to the
evaporation ponds, thus affecting a zero-water discharge.
The Facility shall operate within the ambient design conditions of
8 degrees F through 116 degrees F. The Facility design conditions
shall be 31 degrees F through 104 degrees F (99% ASHRAE dry bulb
temperature and 2% ASHRAE dry bulb temperature respectively).
This new Facility shall be located on 100 acres of property in Clark
County, north of Apex, Nevada. The project site is described in
Exhibit B, Site Description.
2.0 SCOPE OF RESPONSIBILITIES
2.1 Project Management
Exhibit A 10-13-04
Page 4 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Contractor shall provide the necessary personnel and systems to
plan, control, execute, monitor and report project progress in terms
of schedule, scope and cost changes.
2.1.1 Scheduling
Within 30 Days after the Effective Date of this Agreement,
Contractor shall deliver to Owner a Level III detailed CPM Project
Schedule indicating all work to be performed by Contractor. This
Schedule shall contain milestones and include details to support all
major construction, commissioning and testing activities. This
Schedule shall form the basis for progress reporting through the
course of the project and shall be submitted in accordance with the
scheduling and reporting requirements as set forth in the Agreement
Exhibit C-2.
Owner shall have the right to review and comment on the Schedule as
allowed in Exhibit C-2.
2.1.2 Reporting
Contractor shall issue monthly progress reports (status reports) as
required in the Agreement and more fully described in Exhibit J.
2.1.3 Change Control
Contractor shall implement and maintain an effective program to
identify changes in project scope and to develop and report schedule
and cost impact of changes. The change control program shall
function in accordance with the Agreement.
2.2 Technical Data
Contractor shall develop the technical data, including drawings,
equipment lists and specifications, necessary to procure materials
and equipment, construct permanent facilities, install equipment and
materials, and verify the Facility.
2.2.1 Technical Documents
To the extent not completed as a part of the Prior Work, Contractor
shall complete development of and maintain updates of the following
technical documents for procurement of materials and equipment and
construction of the Facility, necessary for operation and
maintenance of the Facility as follows.
Exhibit A 10-13-04
Page 5 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
ENGINEERING AND CONSTRUCTION SPECIFICATIONS
Site preparation, underground pipe, underground electrical,
excavation, foundations and concrete structures, structural steel
and buildings
Mechanical equipment
Piping supply, fabrication and installation
Electrical material and equipment installation
Instrumentation, and plant control and monitoring systems
Paint, insulation and coatings
DRAWINGS
Process Flow Diagrams
Electrical physical drawings
Piping and Instrumentation Diagrams
Overall Site Plan and Plot Plan(s)
Grading and paving drawings
Foundation drawings
Structural steel general arrangement drawings
Building plans and elevations
Piping composite drawings and isometrics
Electrical One-Line Diagrams, schematics and physical drawings
Construction Temporary Facilities Layout
LISTS, INDEXES, AND SCHEDULES (EACH AS AN ELECTRONIC DATABASE)
Piping Line List
Drawing Index
Mechanical Equipment List
Piping Specialty Items
Electrical Equipment List
Electrical Load List
Cable Schedules
Instrumentation Index
2.2.2 Contractor shall provide Owner or its designee access to technical
documents including vendor drawings, specifications and data through
an electronic interface specifically set up for Owner's use.
2.2.3 Owner or its designee shall have the right to review and comment on
design documents that will be completed by Contractor during the
course of the Agreement, provided however, any comments made by
Owner with regard to Prior Work, shall be considered as a Change
Order.
Exhibit A 10-13-04
Page 6 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Owner shall have the right to place Owner's representatives in
Contractor's design office in Houston, Texas, to review the
documents.
Contractor shall review comments received from Owner. If Contractor
agrees with Owner's comments, then Contractor shall incorporate the
comments into the design. If Contractor does not agree with
comments, then Contractor shall respond in writing within ten (10)
Business Days with reasons for not incorporating comments.
2.2.4 Contractor shall provide Owner or its designee with the following
documents for review and approval to the extent not provided as part
of the Prior Work. Owner approval only applies to the initial issue
of the drawings and ECN's. Owner shall receive all issues of the
drawings and ECN's.
- Site Plan & Plot Plan
- Architectural Drawings
- Architectural Finishes
- Process Flow Diagrams
- Piping and Instrumentation Diagrams
- Interface Drawings / Details
- Plant Manuals
- Control System Narratives (as part of systems description)
- Facility test procedures
2.2.5 Facility Interconnect
Contractor shall provide assistance to Owner, as is reasonably
requested, in negotiating/coordinating with local utilities and/or
governmental bodies in any and all matters relating to interface and
interconnection of the Facility.
2.2.6 Units of Measure and Language
The Contractor shall use the English System of Units (feet, inches,
pounds, etc.) for all units of measure. All drawings, including
drawings for equipment based on the metric system shall include the
English System of Units equivalent dimension.
All documents developed and supplied to the Owner shall be in
English.
Exhibit A 10-13-04
Page 7 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
2.2.7 As-Built Documents
Contractor shall revise the following drawings and technical
documents to reflect the As-Built conditions and shall deliver
As-Built drawings and technical documents to Owner or its designee.
- Process Flow Diagrams
- Piping and Instrumentation Diagrams (P&IDs)
- Electrical One-Line Diagrams
- Underground Piping Drawings
- Underground Electrical Drawings
- Connection Diagrams
- Termination Schedule (Engineering Database)
- Equipment List (Engineering Database)
- Electrical Load List (Engineering Database)
- Instrument List (Engineering Database)
- Piping Line List (Engineering Database)
Two (2) redline marked-up hardcopies of the above drawings, and an
electronic update of the engineering database shall be furnished to
Owner or its designee at Substantial Completion of each Power Block
to document and convey changes made during construction,
commissioning testing and verification. The above As-Built drawings
or electronic database incorporating these changes shall be
furnished after Substantial Completion and prior to Final
Completion.
2.2.8 Plant Manuals
Contractor shall provide Plant Manuals as required in the Agreement
and more fully described in Attachment 16. The Final Plant Manuals
shall be provided in hardcopy and CD-ROM formats (2 hardcopies and 3
copies of CDs). The initial issue of manuals shall be provided in
hard copy format by January 15, 2005. Copies of the As Built mark
ups will be provided at Substantial Completion of each Power Block.
Supplements and revisions shall be issued for the hardcopies prior
to Final Completion to incorporate information received after the
initial issue. Final Plant Manuals in CD format shall be provided to
Owner prior to Final Completion.
2.2.9 Operation Manuals
Exhibit A 10-13-04
Page 8 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Owner shall provide Contractor with 2 copies of the Operation
Manuals in hardcopy format in accordance with the Schedule.
Contractor shall support Owner's development of Operations Manuals
describing the step-by-step procedures for operation and maintenance
of Facility. As Built mark ups will be provided at Substantial
Completion of each Power Block. Contractor shall review Operations
Manual for completeness, field changes, clarification and
modification impacting the operation and maintenance of Facility.
2.3 Procurement
Contractor shall procure all remaining materials, equipment, and
services necessary to complete the Facility described in Section 3 -
Scope of Facilities. Contractor shall provide Owner access to
un-priced copies of Subcontractor purchase orders entered into as a
part of the Work, provided however, Contractor shall not be required
to provide copies of purchase orders resulting from Prior Work.
2.3.1 Spare Parts
During the Facility Assessment, Contractor will identify all Owner
Equipment and Major Equipment start up and commissioning spare parts
that are available at Site.
Contractor shall determine any additional spares required for start
up and commissioning and shall be responsible for purchase of these
spare parts.
For Contractor-Supplied Equipment, Contractor shall obtain O&M spare
parts quotations from all such Subcontractors and forward to Owner
within 180 days of the Notice to Proceed date, or as the information
is received from the Subcontractors (whichever is earlier).
Contractor shall provide to Owner lists of vendor recommended
mechanical, electrical and instrument spare parts previously
received as Prior Work for operation of the Facility including Major
Equipment and Owner Equipment.
Contractor may use available Owner's O&M spare parts as required
during the Commissioning and/or Warranty Period with Owner's written
approval. Contractor shall be responsible for payment and
replacement of any Owner-supplied spare parts used by Contractor and
Contractor shall place a purchase order within 7 Days for the
replacement spare parts.
Exhibit A 10-13-04
Page 9 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
2.3.2 Expediting
Contractor shall expedite engineering information, material and
equipment deliveries for items required to complete the Facility.
2.4 Construction
Contractor shall provide construction services through use of
Contractor's resources and/or through Subcontractors. Services
include labor, supervision, construction equipment, tools, installed
and consumable materials, material receiving, handling, and storage,
field erection, installation, construction testing and verification
necessary to provide the Facilities described in Section 3 - Scope
of Facilities.
2.4.1 Contractor's construction management staff shall manage construction
of the project using a closed-shop approach for construction and
installation of the Facility. The construction management staff
shall include a Site Manager, site engineering staff, contract
administration staff, project controls, construction specialists,
safety, environmental and quality control personnel to adequately
manage construction.
2.4.2 Contractor shall develop and implement an on site fire protection
plan for the duration of the construction effort. The Contractor's
safety plan shall be in accordance with Exhibit Q.
2.4.3 Contractor shall develop, implement and follow a project specific
environmental plan that shall include provisions to control erosion
and sedimentation, plans to handle contaminated soil and water
encountered during construction, and spill prevention and
countermeasure control. Such plan shall comply with applicable Law
as defined under the Agreement. Owner's environmental
representatives or consultants shall be made available to Contractor
at no cost to Contractor for consultation regarding development of
these plans.
2.4.4 Contractor shall provide temporary facilities for construction
management and Commissioning staff, including temporary power, water
and sewer connection.
The Contractor shall provide one five wide trailer for the Owner's
use during construction in accordance with the layout shown on
Exhibit B, promptly order and install after the Notice to Proceed.
Contractor shall relocate the ten wide office trailer complex
existing on site as of August 2004, to a location near the craft
labor access road, for Contractor's use. Contractor shall be
responsible for relocating and re-establishing utility
Exhibit A 10-13-04
Page 10 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
services if required to accommodate future switchyard/communications
by others. Contractor shall supply temporary office furniture as
agreed by Owner and Contractor.
Contractor shall install temporary construction utilities including:
electrical on-site distribution hardware, non-potable water and
sewage disposal for Owner's facilities and supply janitorial service
to these trailer facilities. Contractor shall provide drinking water
for Contractor and Owner personnel use. The cost for Owner's phone
service shall be the responsibility of Owner. The cost for
Contractor's phone service shall be the responsibility of the
Contractor.
Contractor and Owner shall each be responsible for furnishing their
own telephones, computers, computer services, software and supplies,
fax machines, copy machines and general office supplies.
2.4.5 Contractor's temporary facilities shall be located within the
Owner's property or in areas provided for construction use.
Temporary facilities shall include:
- Office trailers, including power and telephone connections,
for Contractor's Field Staff
- Parking for Contractor and subcontractor personnel
- Parking for Owner's personnel
- Lay down and storage areas on-site
- Areas for subcontractor temporary facilities
- Temporary sanitary facilities for personnel on-site
2.4.6 Site Preparation
Contractor shall provide Site preparation services including:
- Site Erosion Control
- Excavate, fill and final grading of the Project Site to the
extent necessary and rough grading of the evaporation ponds.
- Installation of temporary and permanent drainage culverts,
ditches and underground drainage piping within the plant site
- Excavation for underground piping, electrical and foundations
- Installation of permanent plant entrance road, plant loop
roads and parking area.
- Finished paving and grading within plant.
Exhibit A 10-13-04
Page 11 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Clean-up and restoration of temporary lay down, areas outside
of plant and construction areas within plant, but not
including removal of existing gravel surfacing material and
fencing.
- Sanitary sewer system
- Repair of any fencing, any missing fencing and removal of
temporary fencing installed by Contractor prior to Final
Completion.
2.4.7 Foundations and Concrete
Contractor shall provide excavation, compaction, backfill, material
and installation of rebar and concrete for equipment, pipe rack,
building and miscellaneous foundations.
2.4.8 Structural Steel
The Structural Design Criteria for the Facility shall be in
accordance with Attachment 9. Contractor shall erect structural
steel required for pipe racks, equipment supports, access ladders
and platforms, and miscellaneous structures.
Notwithstanding the foregoing, Contractor will complete construction
of the Facility per the design completed as a part of the Prior
Work, including platforms and ladders per the Major Equipment
Subcontractor's standard supply.
2.4.9 Buildings
Contractor shall erect administration and maintenance building,
water treatment building, and other miscellaneous yard structures as
indicated in Article 3.6.
2.4.10 Mechanical Equipment
Contractor shall install all Equipment necessary to complete the
Facility in accordance with this Specification. Installation shall
be generally in accordance with manufacturer's instructions.
Installation shall include setting of equipment, grouting, and
alignment. Contractor shall ensure vendor representatives shall be
present at Site, as required by Contractor, for the equipment
installation and commissioning. Contractor shall inspect and record
all significant and substantial equipment installations, settings,
and alignments as per the Contractor's QA/QC plan.
2.4.11 Piping
Exhibit A 10-13-04
Page 12 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Contractor shall install all underground and above ground piping
including field welding, installation of piping supports and guides,
and testing in accordance with applicable piping specifications.
2.4.12 Electrical
Contractor shall install all electrical equipment and material
procured by Contractor including transformers, iso-phase bus duct,
generator circuit breakers, power distribution centers, medium and
low voltage switchgear, and motor control centers (MCCs), batteries,
chargers, UPS, cable tray, conduit, cable and distributed control
system (DCS). Contractor shall perform the installation in
accordance with applicable Laws, generally in accordance with
manufacturer's recommendations, contract drawings and specifications
including, but not limited to, the National Electric Code (NEC
1999).
2.4.13 Instrumentation
Contractor shall install all instrumentation and control systems
procured by Contractor, including CEMS, DCS, field instrumentation
and associated instrument wiring. Contractor shall perform the
installation in accordance with applicable Laws generally in
accordance with manufacturer's recommendations, contract drawings
and specifications, including but not limited to, the National
Electric Code (NEC 1999).
2.4.14 Coating/Painting
All field painting of Equipment, piping, buildings, stacks,
structural steel and other components of the Facility shall be
provided by the Contractor as mutually agreed between Owner and
Contractor during the Assessment Period. All vendor-furnished
equipment shall be supplied with a paint system as defined in the
project painting/coating specifications (DENA-0-SP-5-PA-01). The
paint system shall comply with Special Use Permit Stipulations.
Contractor shall manage the painting contractor in the most
economical way practical.
2.5 Commissioning and Performance Verification
Contractor shall provide Commissioning and Performance Verification
of the Facility including construction support during the
Commissioning and Performance Verification phase of Work.
2.5.1 Commissioning
Exhibit A 10-13-04
Page 13 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Contractor shall be responsible for system checkout, cleaning and
flushing, system pressure verification, electrical continuity,
setting of initial set points and all other such Commissioning
activities for the Work.
2.5.2 Commissioning Activities
Contractor's Commissioning Activities and Performance Verification
shall include the following:
- Equipment initial operation and balancing
- Equipment alignment / adjustment
- Equipment lubrication
- Pipe flushing or high pressure water cleaning, or steam or air
blows
- Chemical cleaning
- Disposal of flushing and cleaning chemicals
- First fill of lube oils and chemicals (except Owner supplied
chemicals per clause 3.8.2) and will replenish to the extent
necessary to achieve Substantial Completion and will replenish
to at least 25% of storage capacity.
- Systems initial operation and adjustments
- Electrical insulation verification and continuity checks
- Verification and calibration of circuit breakers within the
Work
- Motor rotation verification
- Checkout and calibration of protective relays within the Work
- Phase rotation check of distribution equipment
- Instrument calibration
- Instrument loop checks
- Checkout of motor and pneumatic operated valves and control
valves
- Relief valve calibrations, including boiler relief valves and
adjustments required by ASME Code
- Installation of SCR catalyst following initial combustor
firing
- Demonstration Tests
The following functions will be demonstrated during the normal
course of commissioning. As these functions are demonstrated
and witnessed by the plant operating personnel, the successful
completion of these tests will be recorded in the plant log in
the Control Room.
Exhibit A 10-13-04
Page 14 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Should Contractor fail to perform the successful completion of
these Demonstration Tests during the normal commissioning
effort, Contractor will specifically schedule and complete any
such tests prior to Substantial Completion.
- Cold Start Up
- Hot Start Up
- Steam Turbine Bypass
- Combustion Turbine Trip
- Normal Shutdown
- DCS - Normal Power Block Operations
- DCS - Reduced Plant Operation
- Equipment Lead-Lag Control
- Water Treatment System
- Chillers
2.5.3 System Turnover Packages
Contractor shall commission the Facility by plant systems. These
systems shall be identified prior to beginning commissioning
activities at Site. The turnover of a system from construction to
the commissioning group shall utilize a system turnover package
containing appropriate documentation, similar to that listed below,
assembled for each system. Subsequent to completing the
commissioning activities, Contractor shall submit turnover packages
and the appropriate documentation to Owner or Owner's designee for
review and acceptance (which shall not be unreasonably withheld)
prior to Substantial Completion. The exact timing of system turnover
necessarily shall remain flexible to accommodate construction
completion and commissioning priorities of specific systems, but
shall meet or exceed the schedule requirements for the project.
Owner or Owner's designee shall respond in writing to each turnover
package within five (5) days of submittal by Contractor. If Owner
agrees with Contractor's turnover package, Owner shall execute and
deliver to Contractor a letter of acceptance. If Owner disagrees
with Contractor's turnover package, Owner's response shall set forth
in reasonable detail the reasons for such disagreement and
Contractor shall take corrective action as in its judgment may be
required to respond properly to the objections raised by Owner. If
Owner does not respond to such turnover package within the requisite
time period specified above, the turnover package shall be deemed
accepted by Owner. Included with the turnover
Exhibit A 10-13-04
Page 15 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
packages may be a list of minor defects and deficiencies of the
work, including documentation, not adversely affecting the safe
operation of the plant. Such minor defects or punch list items shall
not have to be corrected prior to Substantial Completion, but shall
be corrected prior to Final Completion.
Final records of the turnover packages will be a part of the final
documentation provided to Owner at the end of the project and shall
include:
- System turnover forms
- Hand-marked or revised P&IDs delineating boundaries of
mechanical systems and one-line diagrams delineating
boundaries of electrical systems
- System turnover punchlist
- Instrument device field calibration records
- Instrument loop field calibration records
- Circuit breaker verification and calibration records
- Protective relay verification and calibration records
- Megger / Hi-Pot verification reports
- Alignment and lubrication records
- Water analysis commissioning confirmation
- Chemical cleaning and flushing records
- Steam and / or air blow records
- Piping hydrostatic verification and radiographic reports
- Instrument set point records
3.0 SCOPE OF FACILITIES
The following describes the Facility to be designed, constructed and
commissioned.
3.1 Power Block
The Power Block consists of the major power generation equipment and
the associated auxiliary equipment. Each of the Power Blocks consist
of two GE Model 7241 (also referred to as Frame 7FA enhanced) CTGs
with
Exhibit A 10-13-04
Page 16 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
a nominal rating of 160 MW each, two (2) inlet air chiller packages,
two (2) triple pressure level, reheat, HRSGs, one (1) GE condensing,
reheat, down exhaust STG with a nominal rating of 300 MW, exhausting
to an air cooled condenser, boiler feedwater pumps, condensate
pumps, and interconnecting piping.
3.1.1 Combustion Turbine-Generators
Four General Electric model 7241 CTGs for installation and
commissioning by Contractor. The CTGs shall be 60 hertz, 3600 rpm,
single-shaft gas turbines, directly connected to the generator, and
shall be designed to burn natural gas only. The CTGs shall be
supplied with the major auxiliary equipment and systems listed
below:
- Combustion system
- Ignition system including ignition transformers, spark plugs
and interconnecting system
- Compressor inlet air plenum with drain connection
- Inlet duct air chiller coils
- Turbine exhaust plenum / diffuser
- Rigid type load coupling
- Enclosure for installation in an outdoor environment
- Dual exhaust frame blowers or cooling fans
- Dual enclosure air blowers
- Fire protection system
- Fire detection system
- On-line and off-line water wash manifold and piping to
enclosure edge
- Mounted terminal boxes and interconnecting wiring
- Mechanical Auxiliary System including:
- Lubrication and hydraulic oil systems
- Fuel gas control system
- Starting system
- Shaft turning system
- Gas cleaning, treatment and heating system including fuel gas
absolute separator, electric heater for dew point temperature
control (if required for commissioning), and IP hot water
heater for fuel gas preheating (one for each train)
- Packaged skid mounted hydrogen-cooled generator
- Inlet air system with self-cleaning pulse jet filters and
infrastructure for inlet chilling
Exhibit A 10-13-04
Page 17 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Control module including turbine control and generator
protection systems with human-machine interface hardware in
each local PEECC and the Facility control room Generator
excitation system
- Compressor water wash skid (one per Block) suitable for both
on-line and off-line water wash including a ventilated and
heated enclosure for outdoor installation.
3.1.2 Inlet Chillers
Two (2) complete inlet chiller systems for installation and
commissioning by Contractor. The inlet chillers shall chill the
inlet air of the CTGs to improve the overall performance of the
plant. The design of the inlet chilling system shall be based on 2%
ASHRAE wet bulb temperature. The refrigerant shall exchange heat
with a closed-loop chilled water line, which shall then exchange
heat with the inlet air of the CTGs via the air chilling coils. The
resulting affect shall be chilled air entering the CTGs at
approximately 45 degrees F. The inlet chillers shall be provided
with the following features:
- Modularized design
- Centrifugal compressors - single stage
- Evaporator (air chilling coils)
- Two stage chilled water pumping system
- Condenser
- Cooling tower
- Lubrication system
- Control system
3.1.3 HRSGs
Four (4) HRSGs for installation and commissioning by Contractor. The
HRSGs shall be triple-pressure level with reheat. The nominal design
conditions for the high-pressure steam system shall be 1800 psig at
1050 degrees F with reheat to 1050 degrees F. The HRSGs shall be
provided with the following features:
- Duct burners
- Selective Catalytic Reduction (SCR) system for NOx reduction
- CO Catalyst
- Feedwater regulating control valves
Exhibit A 10-13-04
Page 18 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Cold casing design (Internal Insulation)
- Access stairs, ladders and platforms
- Height and diameter of exhaust stacks in accordance with the
Air Permit (Authority to Construct dated 6-3-04)
- Stack dampers
- Ammonia injection system for SCR usage
3.1.4 Duct Burners and SCR System
Four (4) duct burners for installation and commissioning by the
Contractor. Each duct burner shall be complete including firing
equipment, duct enclosure (burner frame), fuel train skid, and
burner management system. The duct burner system shall not be
operated unless the corresponding CTG is at its full load capacity.
Four (4) SCR systems including the catalysts as well as other system
components for installation and commissioning by the Contractor. The
SCR systems shall utilize 19.4% aqueous ammonia to control NOx
emissions. Contractor shall furnish and install the equipment for
storage and delivery of the aqueous ammonia.
3.1.5 STG
Two (2) General Electric STGs for installation and Commissioning by
Contractor. These STGs convert the thermal energy in the steam
produced in the HRSGs to electrical energy. Each STG consists of
combined high pressure / intermediate pressure (HP/IP) sections in a
common case, and a low-pressure section. High-pressure steam is
supplied to the HP section of the steam turbine. The HP turbine
exhaust is returned to the reheat section of the HRSGs. The reheat
steam mixed with the IP steam is returned to the IP section of the
steam turbine. The IP turbine exhaust is discharged to the LP
section. LP section steam flow is exhausted to the condenser.
The generator shall be hydrogen cooled with static excitation.
Generator shall be rated at 0.95 leading / 0.85 lagging power
factor. Each STG shall be supplied with the following accessories:
- HP stop and control valves
- Valving for cascade by-pass
- Lube oil system with dual coolers, AC driven pump and DC
driven emergency pump
Exhibit A 10-13-04
Page 19 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Hydraulic oil system
- Seal steam system
- Insulation system
- Turbine control system
- Generator excitation system
3.1.6 Air Cooled Condenser Unit (ACCU)
Two (2) complete air-cooled condenser units for installation and
commissioning by Contractor. The air-cooled system will provide
cooling for condensing the STG exhaust. The system will consist of
multiple cell air-cooled condenser sections constructed of carbon
steel with utility grade carbon steel finned-tube bundle assemblies,
axial fans, duct from the STG to ACCU, duct heaters, condensate
storage tank and pumps, air removal system and bundle cleaning
system.
The condenser duct shall include distribution headers necessary for
the steam turbine bypass to dump main steam into the condenser after
the pressure and temperature of the steam have been reduced.
Steam cycle make-up water shall be added from the demineralized
water storage tank by the demineralized water pump through a level
control valve.
Condenser vacuum shall be initially developed and normally
maintained by the steam jet air extraction system supplied with the
condenser. This system shall reduce the condenser pressure from
atmospheric upon each restart, and continuously remove
non-condensable gases from the condenser during normal operation.
3.1.7 Condensate Pump
The condensate tanks shall supply condensate to the suction of the
vertical can-type condensate pumps that pump condensate to the HRSG
LP drum. Two 100% capacity condensate pumps shall be provided per
condenser.
3.1.8 Main Steam System
The main steam system provides distribution of HP, IP / Reheat, and
LP steam to each STG on a per Power Block basis. High pressure steam
shall flow from each HRSG through an isolation valve and into the
high pressure steam header, where the steam shall be routed to the
STG. Intermediate pressure steam shall be mixed with cold reheat
steam from the STG and further superheated in the HRSG re-heaters.
Hot reheat steam
Exhibit A 10-13-04
Page 20 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
shall flow from each HRSG to the hot reheat steam header, which
delivers the steam to the IP section of the STG. Low-pressure steam
shall flow from each HRSG into the low-pressure steam header that
delivers the steam to the LP sections of the STG, where it mixes
with IP exhaust steam.
A STG bypass system shall provide a means to bypass each steam
turbine during start-up and plant upset conditions only, including
steam turbine trips. However, the bypass system is not designed to
allow the plant to operate in bypass mode for durations longer than
four (4) hours in a twenty-four (24) hour period. The STG bypass
system shall include the necessary valves and piping to transfer
steam flows from the steam turbine to the air cooled condenser.
Valves and controls to protect the steam turbine shall be supplied
with the steam turbine.
Each STG bypass shall be sized to bypass 100% of the steam from both
HRSGs (without duct firing).
3.1.9 Boiler Feedwater Pumps
Each HRSG shall be provided with two 100% capacity (one operating
and one standby), motor driven, multistage, segmented-ring boiler
feed water (BFW) pumps. The pumps shall take suction from a single
HRSG low-pressure drum and pump the water to the corresponding
intermediate pressure and high-pressure drums. Feed to the IP drum
shall be via an inter-stage bleed. Each BFW pump shall be provided
with bearing temperature monitoring and vibration switches.
Each BFW pump shall be provided with a recirculation line to
maintain the minimum pump flow rate and for warm up of the pumps as
specified by the pump manufacturer.
3.2 Balance of Plant Systems
The following sections describe the balance of plant systems.
3.2.1 Closed Loop Auxiliary Cooling System
The closed loop auxiliary cooling water (ethylene glycol-water
solution) system provides cooling for auxiliary equipment. The
system will utilize demineralized water with corrosion inhibitor.
Two (2) 100% pumps will be provided per cooler. A wet surface air
cooler will remove heat from the closed loop cooling water at high
ambient temperatures. A fin fan cooler operates at all ambient
conditions to remove heat from the system.
3.2.2 Natural Gas Supply
Exhibit A 10-13-04
Page 21 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
The natural gas supply system consists of the metering station,
natural gas treatment and heating, and supply piping to the
combustion turbines, duct burners, and auxiliary users.
The Owner shall furnish and commission the natural gas revenue
metering station. This station shall include the natural gas revenue
metering, pressure regulation, and necessary liquid removal
equipment, if required. Contractor shall provide technical support
to Owner to assist in defining the interfaces with the natural gas
supply company. Owner shall provide all hardware and associated
installation for pressure control and shutdown at the metering
station. Contractor shall connect to the metering station at a
flange located as shown on the Interface Plan, Attachment 13.
Contractor shall commission the system from the interconnection
point into the Facility. Odorization of natural gas by Contractor is
not provided.
Owner shall provide, within the power plant area, the natural gas
treatment and heating equipment as part of the CTG scope of supply.
Contractor shall install and commission the gas treatment equipment
supplied as part of the CTG scope. The Contractor shall coordinate
these tie-in connections with the Owner.
3.2.3 Boiler Feed Water Treatment System and Condensate Storage
Blowdown from the chiller cooling tower and wet surface air coolers
shall be used as makeup for the boiler feedwater (BFW) treatment
system. The BFW treatment system shall reduce dissolved solids to
the final boiler feed water requirements through a demineralized
water treatment system.
Demineralized water from the BFW treatment system shall be stored in
the demineralized water storage tank that provides make-up water to
the surface condenser hotwell. The storage tank shall provide
sufficient storage capacity for requisite cycle make-up. The tank
shall provide suction to two 100% forwarding pumps and shall have
connections to receive excess condensate from the condenser hotwells
during Facility transient conditions. The BFW System shall include
the following or equal equipment:
- One (1) mixed-bed polisher
- Two (2) 100% Demineralized Water Pumps
- One (1) 225,000 gallon Demineralized Water Storage Tank
- Interconnecting piping and valves
3.2.4 Boiler Blowdown
Exhibit A 10-13-04
Page 22 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
The boiler blowdown system shall collect drains from the HRSGs and
the related main steam cycle components. The drain piping routes
steam generator component drains, including steam drum blowdown and
miscellaneous related drains, to blowdown tanks as required to
dissipate steam energy and collect condensate for fluid transfer.
3.2.5 Chemical Feed for Boiler Feedwater
The purpose of the Chemical Feed for Boiler Feedwater system is to
protect the HRSGs from corrosion and scale formation. The system
shall consist of the following major equipment for each HRSG:
- One (1) 100% polyphosphate injection pump/tank
- One (1) 100% oxygen scavenger injection pump/tank
- One (1) 100% amine injection pump/tank
- Chemical storage facilities
- Piping, valves, and appurtenances
The chemical feed system shall be designed based on using Betz
chemicals.
The chemical feed systems shall maintain water chemistry at
acceptable conditions. An oxygen scavenger shall be fed to the
condensate pump discharge for oxygen scavenging. Phosphate shall be
fed to the HP boiler drum to maintain the desired level of phosphate
concentration and metal passivation. Neutralizing amine shall be fed
to the LP Drums for neutralizing acid-forming gases and to maintain
the desired pH.
Each chemical feed system shall include a chemical feed pump with
stroke adjustment which can be manually set to control the flow rate
of chemical feed and, if needed, a timer which can be manually set
to control the start time and run time of the pump.
The chemical conditioning system for the HRSGs shall be sized to
maintain the proper amount of chemical conditioning at the
applicable full condensate flow rate. Each set of pumps shall be
provided with suction strainers and connections for a portable
calibration column. Materials for the chemical feed pumps shall be
fully compatible with the chemicals handled and the system operating
conditions.
3.2.6 Raw Water Supply
Exhibit A 10-13-04
Page 23 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Raw water for the facility will be supplied from two wells located
on the Site. The on-site water well will feed raw water to the water
treatment system to be clarified, filtered and treated by chemical
addition. This treated water will be stored in two tanks to be used
for all water system needs and firewater.
The supply and installation of the water wells, well pumps and
motors and any local well controls and/or power transformer is by
Owner. Contractor will supply piping from the water well pump
flanges to the water treatment facility within the plant. Contractor
will also provide a 4160V, 3 phase, 60HZ electrical feed and the
control interface. The control interface will be via fiber optic
cable.
Only one well may be operated at a given time. Well WS-2 shall be
the primary well with WS-1 controlled manually as a backup. Both
wells shall be headered together with the piping to the water
treatment system.
A sample water analysis was taken from the existing Kerr McGee water
well and is included as Attachment 6.
A more complete description of the water treating system is found in
the Water System Design Criteria included as Attachment 11.
3.2.7 Auxiliary Boiler
The Auxiliary Boilers shall be fire tube, low emission, gas-fired,
natural circulation, packaged type boilers complete with single gas
burner, motor-driven forced draft fan, electronic programming and
flame safeguard controls, boiler limit and fuel safety interlocks,
fully automatic combustion controls, feed water regulator and
control panel.
Auxiliary Boilers provide steam until the HRSGs begin providing
steam and sparging steam upon plant shutdown. During initial
start-up (i.e. with no cold reheat or HP steam available), auxiliary
steam will be provided by the auxiliary boilers at 125 psig
saturated. The auxiliary boilers are fired by natural gas from the
Fuel Gas System. Make-up water for the auxiliary boilers is supplied
from the Demineralized Water System, with the water deaerated by the
Auxiliary Boiler Deaerators. Two relief valves protect each
auxiliary boiler from over pressurization.
3.3 Electrical Systems
The Electrical Design Criteria is included as Attachment 10. The
Facility shall include the following electrical systems.
Exhibit A 10-13-04
Page 24 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
3.3.1 Generator Electrical System
The generator electrical system provides the means of connecting
each generator output to the Owner-supplied transmission
lines/switchyard and to the Auxiliary Electrical system. Six (6)
main step-up transformers for installation and commissioning by
Contractor are provided as described below.
3.3.1.1 CTG - Electrical
Each CTG shall be connected via isolated phase bus duct to an 18 kV
generator circuit breaker and generator step-up (GSU) transformer.
The generator main leads shall consist of an isolated phase bus
connection from the generator bushings to the GSU transformer low
side terminals via the generator breaker. The GSU transformer shall
convert power from the 18 kV generator voltage to the 525 kV
transmission voltage level.
3.3.1.2 STG - Electrical
Each STG shall be connected to the generator step-up transformer via
isolated phase bus duct. The STG generator breaker shall be on the
high voltage side of the GSU transformer. The generator main leads
shall consist of an isolated phase bus connection from the generator
bushings to the GSU transformer low side terminals. The GSU
transformer shall convert power from the 18kV generator voltage to
the 525kV transmission voltage level (The GSU transformer high side
bushings shall be connected by Owner to the STG generator circuit
breaker supplied by Owner).
3.3.1.3 Transmission Line Interconnection
Owner shall supply the STG circuit breaker on the high side of each
STG main step-up transformer and all associated 525kV equipment.
Owner shall supply all necessary hardware and the installation to
connect both CTG GSU transformers, the STG GSU transformers and the
generator circuit breaker to the owner-supplied 525kV transmission
line/switchyard. Control, relaying and metering wiring and raceways
from and to equipment furnished by Owner shall be designed,
furnished, and installed by Owner. Terminations of
Contractor-furnished cabling at Owner-furnished equipment shall be
by Owner.
3.3.1.4 Generator Electrical System
The generator electrical system per Power Block shall include:
- CTG1 GSU Transformer with Lightning Arresters
- CTG2 GSU Transformer with Lightning Arresters
Exhibit A 10-13-04
Page 25 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- STG GSU Transformer with Lightning Arresters
- 18kV CTG Generator Circuit Breakers
- 18kV Isolated Phase Bus Ducts
3.3.2 Auxiliary Electrical System
The auxiliary electrical system provides a means of stepping-down
the generator terminal voltage to deliver power to the plant
auxiliaries and equipment. The high voltage side of each unit
auxiliary transformer (UAT) shall be connected to the 18kV main
leads between each CTG circuit breaker and its respective GSU
transformer. The low side bushings of the UATs shall be connected to
4.16kV switchgear.
The 4.16kV system shall include the necessary breaker transfer
equipment to allow starting of either gas turbine generator with the
other gas turbine generator operating.
Station service transformers shall step-down three-phase 4,160 volt
power to three phase 480V power for service to the 480V switchgear.
The three phase 480V power from the 480V switchgear shall be
distributed throughout the plant to the MCC(s), miscellaneous
distribution equipment, motor loads of 200 horsepower and below, and
other low voltage plant loads. The auxiliary electrical system shall
include the following major equipment:
- 100% Unit Auxiliary Transformer
- 4,160V Switchgear
- 480V Switchgear
- 4,160V-480V Station Service Transformers
- 480V MCCs
- 125V AC System and 120V AC Uninterruptible Power Supply (UPS)
3.3.3 Facility Electrical
The Facility electrical system provides a power distribution system
at various voltage levels for lighting, receptacles and smaller
loads (motors, HVAC, etc.) as required for all buildings, the well
pumps, and site support facilities. The Facility electrical system
shall originate from 480 volt sources such as MCCs or power
distribution panels. These sources shall provide power to
miscellaneous loads, lighting, welding, HVAC and transformers at
various load power requirements (i.e. 120V, 208V, and 480V).
3.3.4 UPS
Exhibit A 10-13-04
Page 26 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
The UPS system shall provide low voltage AC power to vital circuits
that require uninterruptible AC power and are considered vital for
the safe operation and monitoring of the equipment during both
normal and transient operating conditions. Typical loads that are
considered for connection to the UPS include the Distributed Control
System, the turbine supervisory instrumentation, programmable logic
controllers (PLCs), shutdown networks, plant telephone system, and
certain vendor-supplied control panels.
The UPS system shall provide continuous 120 volt, 60 Hz power to the
vital systems at the Facility. During normal operation, the station
DC system shall provide power to the UPS inverter. The inverter
shall convert the DC to 120 volt AC and provide power to the
distribution panel through a static switch. A backup feed from the
alternate AC power source shall power the step-down transformer. The
output of the transformer shall be the second power source connected
to the static switch. The static transfer switch shall automatically
transfer to the alternate AC source when output voltage of the
inverter deteriorates. Upon loss of synchronization, the static
switch shall inhibit transfer to the alternate AC power source. A
manual bypass switch shall provide a means to remove the inverter,
battery, and static switch from service without interrupting the
power to the distribution panel. The UPS system shall consist of the
following components per 2 X 1 Power Block.
- Static inverter
- Static transfer switch
- Alternate source transformer
- Manual make-before-break bypass switch
- Two AC circuit breakers (alternate input and bypass source)
- One DC circuit breaker with shunt trip
- Vital 120 V AC distribution panel with fused disconnects or
breakers
- Controls, indicating lights, meters and alarm to control the
UPS
3.3.5 125 Volt DC Power
The DC system shall provide power and control power for emergency
equipment required for the safe shutdown of the plant. These loads
typically include emergency DC lube oil pump associated with the
STG, control power for power circuit breakers, switchgear,
protective relaying, and the inverter.
Exhibit A 10-13-04
Page 27 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
During normal operation the battery shall remain fully charged while
the chargers supply power to all of the DC loads. If the plant AC
power system fail, the battery shall provide power to the critical
and emergency loads until the unit is safely shut down or returned
to service. When the AC power is restored, the chargers shall be
capable of supplying the plant DC power requirements while
simultaneously recharging the battery within 24 hours.
The DC system shall include a multiple cell storage battery, two
100% capacity battery chargers and a DC distribution switchboard.
In addition to the plant DC power system, each CTG shall be
furnished with its own 125 V DC system including charger and
battery. These systems shall supply all DC loads associated with
each CTG.
3.3.6 Emergency Diesel Generator
Two emergency diesel generators shall be provided one per Power
Block. Each generator shall be sized to feed one (1) wet surface air
cooler fan, one (1) auxiliary wet surface air cooler exchanger pump,
one (1) auxiliary closed loop cooling water pump, one (1) STG main
lube oil pump, and one (1) STG turning gear.
3.3.7 Grounding
The grounding system shall provide protection for personnel and
equipment from the hazards that can occur during power system faults
and lightning strikes. Contractor shall ensure the design and
installation meets all applicable Laws. System design shall include
the ability to detect system ground faults. The station grounding
system shall be an interconnected network of bare copper conductor
and copper-ground rods. In the plant area, grounding stub-ups shall
be brought above grade in close proximity and connected to the
building steel and selected equipment. The grounding system shall be
extended to the remaining plant equipment per installation
specifications.
An instrument grounding system shall be provided in accordance with
the grounding requirements of the DCS manufacturer. As a minimum,
isolated instrument ground busses shall be connected to designated
ground rods via insulated ground conductors to maintain isolation
between safety and instrument grounds. The instrument ground system
shall be bonded to the plant ground system at a minimum of one
location. The grounding system shall:
- Protect personnel from electric shock hazards
- Protect equipment from excessive voltage
- Facilitate isolation of faulted systems
- Permit the dissipation of transient currents
Exhibit A 10-13-04
Page 28 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Provide a stable reference point for instrumentation and
control circuit measurements
- Safely dissipate lightning discharges
3.3.8 Continuous Emission Monitoring System (CEMS)
A CEMS shall be provided for each HRSG stack to measure air
emissions and generate reports. The CEMS shall be supplied and
calibrated in accordance with the final Facility Air Permit
(Authority to Construct dated 6-3-04) requirements, as administered
by the permitting authorities in Nevada, as well as provide all
required data logging and reporting. The CEMS shall include sample
probe, sample conditioning, sample line, analyzers, calibration gas
bottles for zero and span calibration, necessary connections,
regulators, gauges, and solenoid valves and shall be furnished to
provide a fully functional system. The Guideline on Continuous
Monitoring Systems attached to the Final Air Permit shall only be
used as a general reference document for development of the CEMS
Quality Assurance Plan.
3.3.9 Heat Tracing System
A plant heat tracing system shall be provided as specified in
Attachment 10. The heat tracing system in the Power Block shall
consist of self-regulating heat tracing cable, thermostats, heat
tracing panels with main contactor and circuit breaker panels. Each
heat tracing panel shall include a status light at each feeder
breaker indicating voltage is "ON" the branch circuit. Status of
each heat tracing panel incoming contactor shall be wired to the
DCS. Heat tracing requirements for balance of plant areas (i.e.
cooling tower area) shall be fed directly from a local distribution
panel board.
3.4 Plant Control System
The Contractor shall ensure that the plant control system meets the
applicable project specifications and is generally in accordance
with ISA standards. The control system shall be a fully integrated
microprocessor-based system in a functionally distributed
architecture consisting of redundant processors. The control system
shall be programmed to perform specific control, data acquisition,
alarming, shutdown, reporting, and other operational tasks. The GE
control system controls the shut-down of CTGs and STG. The
processing units shall communicate with the operator CRT consoles,
input/output cabinets, and control systems work stations, combustion
and steam turbine/generator control systems, and other control
subsystems via redundant data highways and/or data links. Where
necessary, communication with the third party control systems (such
as CTG's and STGs, demineralizer, etc.) shall be simplex (not
redundant).
Exhibit A 10-13-04
Page 29 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
3.4.1 Plant instrumentation of sufficient accuracy shall be installed to
perform Facility Performance Verification.
3.4.2 The control system design shall include redundancy, as depicted in
the P&IDs in Attachment 2, to avoid device failures from
significantly impacting unit safety, control and operation. The
controls for CTGs, STGs, HRSGs and balance of plant equipment shall
be interfaced to provide an integrated Facility control system.
3.4.3 The control system shall provide analog (modulating), and digital
(on/off) control and monitoring of the Facility equipment and
systems. Sufficient sequence of events input points shall be
provided to monitor and alarm various trip signals to support
post-trip analysis.
3.4.4 The control system shall support both automatic and manual modes of
operation, and shall provide the operator with real time information
on equipment status and process variables via CRT displays and/or
printed logs. The control system operator stations shall provide the
operator with single window interface capabilities for all normal
unit and plant control functions.
3.4.5 The control system shall automatically alarm, display on CRT(s),
and/or record on log printer(s) out-of-limit and abnormal
conditions.
3.4.6 The control system shall be a microprocessor-based system consisting
of the following major components:
- DCS processors, power supply, communications hardware and
associated cabinets. DCS processors, power supplies, and
communications hardware are to be of a redundant design
- Input/output subsystems for digital and analog interface with
field instrumentation and equipment and the associated
input/output cabinets.
- Eight (8) DCS Operator stations including, but not limited to
CRT, mouse, keyboard, storage and hard copy devices The entire
plant can be operated by any combination of DCS Operator
stations.
- Storage media for system and control configuration including,
but not limited to graphics, report forms, and programs
- System input/output cabinets with redundant power supplies
- Redundant communications data highway for DCS
Exhibit A 10-13-04
Page 30 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Three (3) engineer's work stations consisting of one
Professional Plus work station and two Professional work
stations, and one application station (historian)
- Two (2) color printers and two (2) black/white printers
3.4.7 Contractor shall provide assistance and shall coordinate with Owner
on interfacing the DCS to the plant monitoring and control package
supplied, installed and commissioned by Owner. Contractor has no
responsibility for the programming or set up of the servers not
directly associated with the plant DCS.
3.4.8 Miscellaneous third party control systems are supplied with
mechanical equipment, such as the turbine generator control systems
(redundancy consistent with DCS philosophy), demineralized water
control system (simplex), CEMS, etc.
3.5 Utility Systems
3.5.1 Plant/Instrument Air
The plant/instrument air system shall supply clean, dry, oil-free
air at the required pressure and capacity for all pneumatic
controls, transmitters, instruments and valve operators and clean
compressed air for non-essential plant air requirements. The
plant/instrument air system shall include the following:
- Two (2) 100% capacity, air cooled, single stage, oil
lubricated rotary screw type air compressors, instrument
panel, lubrication system, after-cooler, moisture separator,
intake filter-silencer, air/oil separator system and an
unloading valve
- One (1) full capacity air receiver
- Two (2) full capacity, dual tower, heater-less type desiccant
air dryers
- Two (2) full capacity pre-filters
- Two (2) full capacity after-filters
- Associated header and distribution piping and valves
The plant air system shall be taken through flow limiters that serve
to protect the integrity of the instrument air system.
3.5.2 Service Water
Exhibit A 10-13-04
Page 31 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Water from the Raw Water/Firewater Storage Tank shall be used as
service water. Service water shall be routed to various utility
stations throughout the Facility to be used for general wash down
and utilities such as water seals, cleaning, and flushing.
3.5.3 Potable Water
Water from the Raw Water/Firewater Storage Tank shall also be used
to generate potable water. Contractor shall provide and install the
potable water system, which consists of a raw water storage tank, a
pretreatment system, a reverse osmosis (RO) system, a bladder
tank/pump system, and a RO water storage tank. Safety showers will
be supplied by the potable water system.
3.5.4 Wastewater
Process wastewater contaminated with oils will be segregated from
other wastewater and routed to the oily waste water system. Various
oil contaminated wastewater streams will be collected in the Turbine
Area oily wastewater sumps, 1 & 2 GT-Sump-0100, and then pumped to
an oil/water separator to separate and remove the oil.
Oil from the oil/water separator will gravity flow to the Oil sump,
0WT-Sump-0100 which will be periodically emptied by a waste hauler.
The Clear Water Sump, 0WT-Sump-0200, receives clean, oil-free, water
from the OWS separator before recycling the water to the CTBD Surge
tank for reuse in the Water Recovery System.
Steam blowdown streams will be collected in the HRSG Blowdown Sumps,
1 & 2BB-Sump-0100, and pumped to the CTBD Surge tank.
GT wash water streams are directed into the respective Gas Turbine
Compressor Wash down Collection Sumps, 1GT-Sump-1110 and
2GT-Sump-2110. The Gas Turbine Compressor Wash down Collection Sump
is sized to hold the off-line wash drainage for two gas turbine
washes so that back-to-back gas turbine off-line washings are
possible. The collection sump will be emptied with a vacuum truck
designated for proper off-site disposal.
Curbed containment sumps are provided in the chemical storage areas.
These containment sumps include manual drain valves mainly for
draining rain water which are normally closed.
A regeneration waste neutralization system will receive the
regeneration wastes from the cation exchangers and the chemical
containment sump. This system neutralizes the pH by the addition of
acid or caustic prior to discharge to solar evaporation ponds.
Maximum discharge to the ponds is 23-30 gallons per minute.
The design and associated permitting of the evaporation pond shall
be furnished by Owner. Installation and construction permits for the
evaporation pond is by Contractor. The evaporation ponds shall
consist
Exhibit A 10-13-04
Page 32 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
of two cells approximately equal in size. The ponds are designed for
periodical removal of accumulated salts during this period based on
the water analysis in Attachment 6. The water surface area at the
operating capacity covers approximately 10 acres. The operating
depth of each cell is approximately 4.5 feet. The beam crests are
sized to facilitate vehicle traffic. All side slopes of the pond are
at a 3:1 (H:V) slope.
3.5.5 Sanitary Waste
The sanitary waste system shall collect facility sanitary wastes and
route the waste to a leach field. The sanitary waste system shall be
designed to carry and treat the design flows associated with 32
personnel, consisting of staff and visitors. The system shall be
designed to comply with all applicable Laws.
3.5.6 Plant Security
The plant security system shall control access to the plant site for
all visitors and employees. The security system shall include the
following:
- A fence surrounding the Facility perimeter
- A motor-operated gate with a card reader or keypad
- An intercom system between the gate and the control room and
the administration area
- A closed circuit television system with a monitor in the
control room and the administration area
During construction, the Contractor shall provide perimeter safety
and security fencing around the working areas.
3.5.7 Fire Protection
The Fire Protection Design Criteria shall be as specified in
Attachment 5.
3.5.8 Plant Telephone System
The plant telephone system shall include telephone outlets in the
administration offices, control room, maintenance shop, warehouse
area, PDC 1A/1B/2A/2B, PEEC four (4), two (2) Sample Panel, four (4)
Inlet Chillers, and four (4) CEMS. Owner shall supply plant
telephone private branch exchange (PBX) equipment for switching
on-site telephones and for connection to local phone service.
Additional lines for fax machines shall be furnished in the
Administration Building. Wiring shall be installed in the
administration offices, control room and maintenance area for
implementation of a local area network by Owner. Owner shall provide
Exhibit A 10-13-04
Page 33 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
phone handsets for each of the offices. Contractor shall provide
wiring and outlets.
Contractor shall install a dedicated telephone line for the GE LTSA
which shall have an On-Site Monitor (OSM) that the controller can
report machine data to a central monitoring station for GE.
3.6 Buildings and Roads
3.6.1 The following buildings shall be provided as part of this
Engineering and Construction Agreement:
1. Administration/Main Control Room Building - reference attached
drawings per Attachment 12 for the Floor Plan. The building
shall incorporate the plant control room and offices for the
Facility administrative staff. It shall be designed to meet
the requirements of the Americans with Disabilities Act (ADA).
One male and one female restroom shall be provided as well as
an unfurnished breakroom area with basic kitchen type cabinets
and appliances as shown on the reference drawings. Floor
finishes shall be vinyl in the offices area and breakroom,
vinyl flooring in the restrooms and mechanical room and an
access floor system in the control and IT rooms with a
laminate finish. The building shall be heated and
air-conditioned. Entrance doors shall include an airlock for
all external entrances. The building shall be provided with a
sprinkler system for fire protection.
2. Warehouse/Maintenance Building - reference attached drawings
per Attachment 12 for the 1st Floor Plan and 2nd Floor Plan.
The building shall be provided with gang shower area in the
men's restroom, in addition to a handicap accessible shower
and a handicap accessible shower only in the women's restroom.
The maintenance area of the building shall include shop space
for routine plant maintenance activities. Electrical service
shall be provided for the Owner-supplied machine shop
equipment. The building shall be heated and air-conditioned.
The building shall also be provided with a sprinkler system
for fire protection.
3. Water Treatment Building - The water treatment building shall
be per Attachment 12 and shall be heated and the electrical
room (only) shall be air-conditioned.
4. Fire Pump House - The building is estimated to be 20'X20'X12'
high and shall be heated and ventilated.
Exhibit A 10-13-04
Page 34 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
5. Power Distribution Center (PDC) Buildings - The buildings
shall be pre-fabricated type and shall be heated and
air-conditioned.
3.6.2 The scope for all buildings does not include any furnishings such as
desks, tables and chairs.
The scope shall include an asphalt plant access road and asphalt
loop plant road around the perimeter of the area occupied by the
turbines, HRSG's, air cooled condenser and PDCs. An asphalt-paved
parking lot with adequate space for 32 vehicles including one
handicap accessible space shall be provided. All gas bottle areas
will be asphalt-paved to accommodate forklift access.
3.7 Temporary Construction Utilities
Contractor shall provide the following temporary construction
utilities:
- Construction Power - Contractor shall provide temporary diesel
generators and necessary fuel for temporary construction power
connection from the start of construction activities at the
Site through 12-31-04 at Owner's cost. Contractor may utilize
Owner's two temporary existing 800 KW diesel generators for
construction power.
- Telephone - Contractor shall utilize the permanent service
pedestal that it shall have installed at the property for
temporary construction needs.
- Sanitary Sewer - Contractor shall utilize third party
contracted service to provide holding tanks and port-a-lets
for sanitary sewer needs. Permanent sanitary waste facilities
shall be provided prior to permanent occupancy.
- Drinking Water - Contractor shall provide drinking water.
Owner shall provide the following temporary construction facilities
- Fuel Gas, back-feed power and electric load.
- Water - Owner shall make available to Contractor two water
wells to supply construction raw water and permanent plant
water.
- Owner shall provide tie-in and pay for all construction power
on and after 1-1-05.
- Temporary Lay-Down - Owner shall provide temporary
construction lay-down areas defined in Exhibit B.
3.8 Lubricants/Oils/Chemicals/Gases
Exhibit A 10-13-04
Page 35 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
3.8.1 Lubricants/Oils
Contractor shall supply initial fill of all lubricants and oil and
shall top off at Substantial Completion. Contractor may at its
option utilize flushing oils for permanent installation after
adequate processing.
3.8.2 Chemicals
Contractor shall provide initial fill of chemicals except for water
treatment (pretreatment, cooling tower, demineralized and boiler
feedwater chemicals, which shall be provided by Owner). Contractor
shall replenish all chemicals to the extent necessary to achieve
Substantial Completion of each respective Power Block (except for
Owner supplied water treatment chemicals) and all chemicals consumed
during commissioning at Substantial Completion of each respective
Power Block and will replenish to at least 25% of storage capacity.
Contractor will provide necessary support labor to install Owner
supplied chemicals.
3.8.3 Gases
Contractor shall provide all gases (except for fuel gas) necessary
for construction and commissioning of the facility. Contractor shall
provide storage hydrogen trailer/bottles including transportation
costs for the duration of commissioning. Contractor shall pay for
hydrogen consumed through Substantial Completion. Contractor shall
replenish to the extent necessary to achieve Substantial Completion
of each respective Power Block and will replenish to at least 25% of
storage capacity gasses consumed during commissioning at Substantial
Completion.
B. PERFORMANCE GUARANTEES AND VERIFICATION PROCEDURES
1.0 PURPOSE
The purpose of this Section is to define the criteria for plant
performance guarantees, the basis for guarantees, Contractor's
obligation for Performance Verification of each Power Block, and
verification acceptance criteria for demonstrating that contractual
performance guarantees have been met in accordance with this Exhibit
A.
There are a total of four (4) Acceptance Test types:
- Plant Performance Tests (Output and Heat Rate)
- Three (3) Day Reliability Test (After Substantial Completion)
Exhibit A 10-13-04
Page 36 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- Environmental Compliance Test
- Utility Acceptance Test
Operation during testing with altered or modified control systems,
or using methods of operation that would not be recommended or
normally used for long term operation under prudent power contractor
practices will not be allowed under such procedures.
2.0 PLANT PERFORMANCE TESTS
2.1 Performance Guarantees
The "Power Block Performance Test" shall mean the test of each Power
Block independently to demonstrate the Power Block's compliance with
the Power Block Performance Guarantee for Net Electrical Output and
Net Heat Rate. The Power Block test shall consist of two (2)
combustion turbines, associated HRSGs and steam turbine operating at
base load and steady state conditions, chillers off, duct burner on
at 300 mmbtu/hr (LHV) heat input to each HRSG, and air cooled
condenser fans operating to maintain the STG backpressure below the
alarm point. The Performance Verification test results shall be
corrected for the difference between the actual HRSG Duct Burner
Heat Input during Performance Verification and the 300 mmbtu/hr
(LHV) basis.
PERFORMANCE GUARANTEES
(Apply to Single Power Block)
Net Electrical Output 462,320 kW
Net Heat Rate 6,887 BTU/kWH (LHV)
Maximum HRSG Duct Burner Heat Input 300.0 MMBtu/hr (LHV)
MINIMUM PERFORMANCE GUARANTEE
Net Electrical Output 439,204 kW
Net Heat Rate 7,231 BTU/kWH (LHV)
2.2 Performance Bonus
The "Power Block Bonus Performance Test" shall mean the test of each
Power Block independently to demonstrate the Power Block's
compliance with the Performance Bonus for Net Electrical Output and
Net Heat Rate. The Power Block test shall consist of two (2)
combustion turbines, associated HRSGs and steam turbine operating at
base load and steady state conditions, chillers on, duct burner on
at maximum allowable duct burner heat input, and air cooled
condenser fans operating to maintain the STG backpressure below the
alarm point. The Maximum HRSG Duct Burner Heat Input shall not be
exceeded regardless of ambient temperature or Power Block
capabilities.
Exhibit A 10-13-04
Page 37 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
PERFORMANCE GUARANTEE FOR BONUS
(Apply to Single Power Block)
Net Electrical Output 583,000 kW
Net Heat Rate 6,940 BTU/kWH (LHV)
Maximum HRSG Duct Burner Heat Input 524 mm btu, subject to
any mass flow
limitations due to
ambient conditions
2.3 Electrical Output
The guaranteed Electrical Output of a Power Block shall be as
specified in the Agreement adjusted to the Guaranteed Performance
Conditions for Performance Guarantees, based on manufacturer and
Test Contractor-supplied correction curves.
Electrical Output is the sum of the power produced by the CTGs and
the STG, less the auxiliary loads to run Power Block equipment and
electrical losses in GSU transformers, interconnecting transmission
lines, auxiliary transformers, and Auxiliary Systems and Facilities.
For determination of output for the guarantee, the net electrical
output of the Power Block shall be measured at the electric power
revenue metering equipment located on the plant Site, which Owner
shall provide at the high side of the main step-up transformers.
Owner shall be responsible for calibration of the power revenue
metering equipment and shall provide Contractor with calibration
data sheets prior to testing.
2.4 Heat Rate
The guaranteed Heat Rate of the Facility shall be as specified in
the Agreement adjusted to the Guaranteed Performance Conditions for
Power Block Guarantees, based on manufacturer and Test
Contractor-supplied correction curves.
Heat Rate is the total fuel consumed in the CTGs and duct burners
divided by the Net Electrical Output of the Power Block. Fuel
consumption used in determining Heat Rate is based on the lower
heating value (LHV).
The fuel consumption of the Power Block shall be determined from the
mass flow measured downstream of the gas treatment equipment for
each turbine and the LHV of the samples that shall be taken during
testing. This meter shall meet AGA Report #3. Duct firing gas flows
shall be determined using gas flow metering located in the gas line
to each HRSG. In the event that Contractor discovers a discrepancy
in the readings from the natural gas revenue meter during the
preparation for Verification Testing, Owner shall be notified. The
fuel consumption of the Power Block shall be determined from the
following method.
The mass flow calculation based on pressure drop across the
GE-supplied gas flow orifices to each of the gas turbines. Duct
firing gas flows shall be determined using gas flow
Exhibit A 10-13-04
Page 38 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
metering located in the gas line to each HRSG. AGA Report #3
methodology shall be used, including the gas constituent analysis to
calculate flow.
2.5 Auxiliary Loads
The Power Block Performance Test and Power Block Bonus Performance
Test output and heat rate are calculated with all ACC fans in
operation at high speed. Auxiliary loads will be adjusted to reflect
any operation of the fans at low speed or off-line during the
performance tests.
The expected Auxiliary Electrical Loads for the guarantee ambient
conditions are tabulated in Attachment 17. Auxiliary loads include
all loads common to both blocks plus the auxiliary load of the block
being tested. Water treatment system and auxiliary boiler system
will be turned off during the performance test.
2.6 Guaranteed Performance Conditions for Electrical Output and Heat
Rate
The actual Performance Verification results shall be adjusted to the
following Guaranteed Performance Conditions for Electrical Output
and Heat Rate.
2.6.1 Site Conditions
Barometric Pressure: 13.55 psia
Ambient Temperature: 103 degrees F
Relative Humidity: 19.6%
Elevation: 2,228 ft
2.6.2 Operating Conditions
Power Factor: 0.85 lagging
Blowdown: 0 %
Performance fuels: Per Attachment 8
Gas Turbine Operating Hours: Performance Degradation shall
apply per GE's guarantee basis
Steam Turbine Backpressure: Per GE's GEK-111038a, August
2004 Alarm Limits
Cooling Water temperature to
Generator Coolers: 105 degrees F (Max.)
Exhibit A 10-13-04
Page 39 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
2.7 Conduct of Verification
Each Power Block Performance Verification shall be conducted using
installed plant permanent instrumentation where practical. The
performance verification plan shall be in general accordance with
ASME PTC 46 "Performance Verification Code on Overall Plant
Performance.
Each Power Block Performance Verification shall consist of a series
of four (4), one-hour verification runs applied to each power block
(2x1). A minimum of one-half hour of Facility operation shall be
required prior to four (4) one hour verification runs. The four (4)
one hour verification runs shall be completed over a period not to
exceed forty-eight (48) consecutive hours. Results of the four (4)
one hour verification runs shall be averaged per Performance
Verification Procedure.
Verification readings (6 minimum) shall be taken at least once every
10 minutes during each of the verification runs and the average
shall be calculated.
Grab Samples taken at the gas metering station, or downstream of the
gas treatment equipment shall be sent to a lab for independent
analysis to determine the fuel heating value. The Grab Samples shall
be taken at least once per verification run with a backup. The fuel
heating value shall be determined by the averaged readings from the
Grab Samples. Adjustments to the performance calculations due to
variations in the fuel analysis shall be defined in the Performance
Verification Procedure.
Operation of the Facility during Performance Verification is the
responsibility of Contractor, including supervision of Owner's
operation and maintenance personnel engaged in the validation of the
Facility and coordination of all on-site logistical activities in
support of Performance Verification.
Owner is responsible for liaison with the local utility, or other
entity responsible for the electrical transmission and distribution
system that the facility exports power to, and environmental
authorities as required during Performance Verification.
Owner is responsible for coordinating the delivery of natural gas
for and the associated sale of electricity produced during
Performance Verifications.
2.8 Verification Procedures
Performance Verification Procedures developed shall include the
following:
- Administrative Procedures
- Coordination procedures with Owner and Owner's
Operations and Maintenance group
- Correction methods to adjust for actual conditions which
are different from the basis for overall performance
guarantees stated above
- Sample data and calculation sheets
Exhibit A 10-13-04
Page 40 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
- A list of instruments that shall be used to collect data
for the verification and their corresponding
identification tags and their respective accuracy
- Calibration data for all instruments designated for use
in the test.
Owner shall have the right review and approve the Verification
Procedures per the Agreement.
2.9 Acceptance Criteria
The Electrical Output and Heat Rate for the complete Moapa Energy
Facility (4X2) shall be verified by applying the Performance
Verification procedure to each individual Power Block (2X1). Each
Power Block (2X1) shall independently meet all Agreement obligations
for Electrical Output and Heat Rate Guarantees.
All guaranteed results stated shall be met while not exceeding the
emissions values stated in the Moapa Energy Facility Air Permit
(Authority to Construct dated 6-3-04), Tables II-B-1 and II-B-3.
Common loads and the measuring procedures shall be described in the
Facility Performance Verification Procedures. Temporary and
permanent instruments will be utilized to measure the common
auxiliary loads during the first power block (2X1) Performance
Verification and during the second power block (2X1) Performance
Verification.
2.10 Deadband Applied to Performance Guarantees
A plus or minus one (1.0%) percent deadband per the Agreement shall
be applied to the Performance Guarantee prior to comparing the Power
Block Performance Test corrected net output and net heat rate
results with the guarantees. No other test uncertainty adjustment to
the test results shall be allowed.
2.11 Deadband Applied to Performance Bonus
No deadband will be applied to the Performance Bonus values under
Section 2.2.
3.0 THREE DAY RELIABILITY TEST
The Three (3) Day Reliability Test shall mean the test to
demonstrate the reliability of the Power Block over a 72 hour period
prior to Final Completion. Each Power Block shall operate during the
Three (3) Day Reliability Test within the emission levels identified
in the Air Permit (Authority to Construct dated 6-3-04). The Three
(3) Day Reliability Test shall demonstrate full load reliability
during the test period. The operating time during Performance
Verification Testing may be included in the Reliability Test. The
protocol for the Three (3) Day Reliability Test shall be as follows:
Exhibit A 10-13-04
Page 41 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
3.1 Reliability Test
- After the Power Block has reached a stable condition at base
load with the CTG's at 100% load, with chillers on and duct
burner firing (or as otherwise mutually agreed), the Three (3)
Day Reliability Test shall begin.
- The Power Block shall operate for seventy-two (72) hours under
the above condition.
3.2 Reliability Factor
The 72 hour Reliability Test will demonstrate the ability of each
Power Block to operate continuously for 72 hours at or near 100%
load on the gas turbines with chillers on and duct firing on or as
otherwise mutually agreed. The acceptance criteria shall be that the
Power Block runs normally and continuously in its normal manner and
mode, in accordance with Prudent Industry Practice, and in
compliance with applicable permits (taking into consideration any
variances or waivers, if applicable) for 72 hours at a minimum of
95% capacity factor of the maximum Power Block capacity (adjusted
for ambient conditions and not exceeding manufacturer's
limitations), while in compliance with the Air Permit (Authority to
Construct dated 6-3-04) emissions criteria.
The 72 hour Reliability Test acceptance criteria is to generate a
net electrical output equal to or greater than a capacity factor of
95% of the maximum Power Block capability (adjusted for ambient
conditions and not exceeding manufacturer's limitations), for a
continuous period of 72 hours. If a 95% capacity factor for the
entire 72 hour period is generated prior to the completion of the 72
hour period, the test has been successfully passed.
3.3 Acceptance Criteria
The Three (3) Day Reliability Test shall be satisfied when the Three
(3) Day Reliability Test was conducted in accordance with the Three
Day (3) Reliability Test Procedure and the Reliability Factor is at
least 95%.
Exhibit A 10-13-04
Page 42 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
4.0 ENVIRONMENTAL COMPLIANCE TESTS
The Environmental Test Contractor is responsible for completing all CEMS
certification tests and preparing the certification application required
under Part 75 of Title 40 of the Code of Federal Regulations for Owner to
submit to the appropriate agencies.
4.1 Compliance Tests
- The exhaust gas emissions during normal base loaded operation
exiting the HRSG stack shall not exceed the limits established
in the Air Permit (Authority to Construct dated 6-3-04),
tables II-B-1 and II-B-3.
- Facility emissions verification shall be conducted to
demonstrate that the Air Permit (Authority to Construct dated
6-3-04) requirements have been satisfied. The Facility
emissions verification shall be conducted in accordance with
the applicable EPA methods by a third party that is certified
to conduct emissions verification.
- The Environmental Test Contractor shall develop the Facility
emission verification protocol.
- Contractor shall have met all contractual obligations relative
to air emissions if the results of the Power Block and
Facility emissions verification indicate air emissions are at
or below the emissions levels in tables II-B-1 and II-B-3 of
the Air Permit (Authority to Construct dated 6-3-04) during
normal base load operation.
5.0 UTILITY ACCEPTANCE TESTS
Contractor shall permit Electric Interconnection Utility representatives'
access to the Plant to observe functional testing of communications,
metering and control.
C. TRAINING PROCEDURES
1.0 OPERATOR TRAINING BY CONTRACTOR
Contractor shall be responsible for providing training for Owner's
operators to the extent that such training was purchased by Owner under a
Major Equipment Contract and assigned to Contractor under the Agreement.
The training program
Exhibit A 10-13-04
Page 43 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
shall be for a maximum of 35 people. The training program shall include
the following:
- To the extent provided from an assigned Major Equipment
Contract supplier, classroom training covering the process,
mechanical, electrical and control systems of the CTGs, HRSGs,
STGs shall be provided. The Contractor shall coordinate the
schedule for such training directly with the supplier.
- DCS training covering the DCS hardware, software and controls
systems.
Contractor shall provide hands-on training for the Operators during
equipment and system commissioning, provided that Owner coordinates such
activities with Contractor without causing Contractor a delay in the
Contract Detailed Schedule.
2.0 OPERATOR TRAINING BY OWNER
Owner shall provide and coordinate all formal operator classroom training.
Owner will train the Operators in the following areas:
- Systems operations overview covering the Power Plant and
Facility operating philosophy utilizing the P&IDs and plant
operating instructions
- CEMS training covering process, electrical and control systems
- Plant electrical systems
- Balance of Plant (BOP) equipment and systems
D. FACILITY ASSESSMENT
1.0 PURPOSE
Contractor shall develop and maintain the Facility Assessment effort
during the 90-Day True-Up period as defined in the Agreement. Contractor
shall develop the equipment inspection packages, lead the equipment
inspections, lead the effort for inventory of materials on Site to be
installed, and prepare recommended Corrective actions plans in accordance
with Attachment 14.
Exhibit A 10-13-04
Page 44 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
Attachment 15 identifies all materials and equipment determined to have
been previously delivered to the Site and maintained in good and working
order. Attachment 14 and 15 will be used during the Facility Assessment
effort to conclude determine missing, damaged or deteriorated components
and materials.
Exhibit A 10-13-04
Page 45 of 46
Exhibit 10.4
EXHIBIT A
SPECIFICATION
E. ATTACHMENTS
1.0 SITE PLAN AND PLOT PLAN
2.0 PROCESS FLOW DIAGRAMS AND P&IDS
3.0 EQUIPMENT LIST
4.0 ELECTRICAL ONE-LINE DIAGRAMS
5.0 FIRE PROTECTION DESIGN CRITERIA
6.0 RAW (WELL) WATER ANALYSIS
7.0 PERFORMANCE VERIFICATION PLAN
8.0 PERFORMANCE FUEL - NATURAL GAS ANALYSIS
9.0 STRUCTURAL DESIGN CRITERIA
10.0 ELECTRICAL DESIGN CRITERIA
11.0 WATER SYSTEMS DESIGN CRITERIA
12.0 BUILDING PLANS
13.0 INTERFACE PLAN (OWNER/CONTRACTOR INTERFACE POINTS)
14.0 ASSESSMENT EFFORT
15.0 LIST OF MATERIAL AT SITE
16.0 PLANT MANUAL
17.0 AUXILIARY LOAD LIST (PERFORMANCE GUARANTEE / PERFORMANCE BONUS)
18.0 AIR PERMIT (AUTHORITY TO CONSTRUCT)
Exhibit A 10-13-04
Page 46 of 46