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American Bar Association Forum on the Construction Industry. POWER GENERATION. Presented By: David Crouse Sithe Global Daniel M. Drewry Drewry Simmons Vornehm , LLP. Statistics. U.S GENERATED 4,143 billion kilowatt hours of electricity in 2011 (1.5kW/person)

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Power generation

American Bar Association

Forum on the Construction Industry

POWER GENERATION

Presented By:

David Crouse

Sithe Global

Daniel M. Drewry

Drewry Simmons Vornehm, LLP


Statistics

Statistics

  • U.S GENERATED 4,143 billion kilowatt hours of electricity in 2011 (1.5kW/person)

  • Sources Generating Electricity

    • Coal41.6%

    • Natural Gas25.5%

    • Nuclear19.1%

    • Hydro 7.8%

    • Renewable/Other (Solar/Wind )6.0%


U s electric power production 2011

U.S. ELECTRIC POWER PRODUCTION 2011

2011 STATISTICS (ROUNDED)


Power generation trends

POWER GENERATION TRENDS


Power generation trends1

POWER GENERATION TRENDS


Power generation

POWER GENERATION TRENDS

SourceTrendReason

Coal declineEnviro

Nuclear declineEnviro/Regulatory

Gas CC growthPrice/Efficiency

Hydro declineEnviro/Cost

Wind growthRegulatory/subsidy

PV Solar growthRegulatory/Price


Fossil nuclear electricity generation

FOSSIL/NUCLEAR ELECTRICITY GENERATION


Power generation

COAL


Coal plant process rankine cycle

COAL PLANT PROCESS (RANKINE CYCLE)


Natural gas combined cycle

NATURAL GAS COMBINED CYCLE


Combined cycle brayton rankine process

COMBINED CYCLE (BRAYTON+RANKINE) PROCESS


Nuclear

NUCLEAR


Hydro

HYDRO


Power generation

WIND


Solar

SOLAR

SOURCE: GTM Research and SEIAM Research and SEIA


Building the plant

BUILDING THE PLANT

Developing, designing, purchasing, constructing, and starting up a large power generation facility is a complex, risky business that involves the management of thousands of interface points and requires extensive planning and coordination.


Development considerations

Development Considerations

  • Pro Forma comparing cost to revenue for the facility life cycle

    • Life cycle of a plant is about 40 years

    • Revenue Stream from generation will last 40 years (projected demand)

    • Current cost is as much $ 1.7 million per megawatt


What to build

What to Build?

  • Considerations

    • Site Location & Space Considerations

    • Fuel Source and projected cost/availability

    • Water Source and projected cost/availability

    • Schedule & Cost

    • Environmental &Regulatory Concerns

    • Public/Social Considerations


Levelized mwh cost by type

Levelized MWh Cost by Type

Energy Information Administration, Annual Energy Outlook 2012. June 2012, DOE/EIA-0383(2012).


Steps in constructing a power plant

STEPS IN CONSTRUCTING A POWER PLANT

  • Regulatory Approval and Permits

  • Design/Purchase of Generating Equipment

  • Design of Fuel Delivery System

  • Electrical Transmission Considerations

  • Design of the Facility

  • Construction

  • Startup, Commissioning & Testing

  • Operation & Maintenance


Regulatory approval permits

Regulatory Approval & Permits

  • Vary by State & locality

  • EPA & Regulatory Considerations

    • Air Pollution (Sox, Nox, Particulates, Carbon)

    • Grey water treatment

    • Ground Water

    • Wet lands

    • Other (Noise, aesthetics, social benefits, etc.)_


Design and pre purchase of generating equipment

Design and Pre Purchase of Generating Equipment

  • Major Equipment is Designed & Manufactured by OEM Vendors (Boiler, Steam Turbine, Combustion Turbine, AQCS)

  • Equipment can take years to Design and Manufacture long lead deliverables

  • Equipment is often assigned to EPC Contractor

  • Performance guarantees, delivery lead times, constructability, warranties and long term maintenance agreements are critical purchase considerations


Power transmission

Power Transmission

  • Age (technology of transmission system)

  • Capacity / Constraints of Transmission System

  • If New Transmission is required. How long to Build (Right of Ways)?

  • Other (Interconnect studies, VAR support)


Facility design

Facility Design

  • Power generating facilities are huge complex projects that demand extensive experience and coordination from the designer, builder and OEM vendors.

  • Previous era plants were constructed as “Design-Build” where all aspects of the design and procurement were completed before construction began.

  • Today contracts are often awarded on an EPC (Engineer, Procure, Construct) basis with a “fast track” schedule where construction often begins before all systems are designed. This reduces cost (IDC) but can add risk.

  • A Reference Plant, a 1,000 MW (2x500) generating plant was estimated to require 898,200 man hours for design.


Construction

Construction

  • Schedule (CPM)

    • EPC Contractor develops Baseline Schedule

    • EPC Contractor provides Periodic/regular schedule updates identifying problems and projecting final completion

  • Budget (LSTK, Cost Plus, Gmax)

    • EPC Contractor develops Baseline Budget

    • EPC Contractor provides Periodic/Regular Budget revisions identifying contract changes and projecting final project cost.


Construction risks

Construction Risks

  • Differing Site/Design Conditions

  • Labor dispute/Productivity

  • Design/Manufacturing Errors & Omissions

  • Quality Assurance/Quality Control

  • Regulatory Approvals

  • Safety/Injuries

  • Shipping/Storage Damage/Loss

  • Commissioning errors

  • Performance Shortfalls


Construction 2x500 reference plant

Construction2x500 Reference Plant

  • Mobilization, General Conditions, Demobilization

  • Project Duration Approximately 4 years


Site work

Site Work


Site work 2x500 reference plant

Site Work2x500 Reference Plant

  • Site Work includes:

    • Clear and Grub

    • Site and Building Excavation

    • Sewer, Water and Storm Sewer

    • Streets, Sidewalks and Landscape

    • Stormwater Retention

  • Cost can vary by location


Civil work

Civil Work


Civil work1

Civil Work

  • Civil Work Includes

    • Building & Equipment Foundations

    • Building Structural Concrete

  • 1,000 MW reference plant requires over 130,000 cy.

  • Trades involved : ironworkers, carpenters, cement masons, laborers, operators, electricians.


Structural steel

Structural Steel


Structural steel 2x500 reference plant

Structural Steel2x500 Reference Plant

  • Structural Steel Work Includes

    • All Building Structural Systems

  • Most Work is performed By Iron Workers

  • Major Equipment (cranes etc.) is required

  • Typical 100 MW plant requires about 25,000 tons


Architectural

Architectural

  • Then:Design Build, Brick & Mortar, Overbuilt, Cheap Labor, Long Schedules

  • Now:Fast Track, Prefab Steel, Structurally optimized, Critical Path Schedule


Architectural work 2x500 reference plant

Architectural Work2x500 Reference Plant

  • Architectural work includes all interior and exterior architectural elements.

  • Work is performed by carpenters, drywallers, painters, floor installers, plumbers, HVAC installers and electricians


Generating equipment

Generating Equipment

  • The most expensive and critical aspect of the plant

    • Long lead

    • Exotic precision design, delicate

    • Basis of plant performance production


Major equipment

Major Equipment

  • Major Generating Equipment

    • May be Pre-purchased by Owner

    • Designed & Manufactured by Vendor (OEM)

    • & Assigned to EPC Contractor

  • Work is performed by pipefitters, steamfitters, millwrights, electricians.


Piping work 2x500 reference plant

Piping Work2x500 Reference Plant

  • Piping Work Includes

    • Water, Steam, Fuel and Exhaust Piping

  • Work is performed by Pipefitters, Steamfitters and Plumbers

  • Advanced metallurgy requires specialty welding skills and procedures (P91)

  • Typical plant requires about 771,365 linear feet of pipe.


Electrical and cabling 2x500 reference plant

Electrical and Cabling2x500 Reference Plant

  • Over 6 million linear feet or over

    • 1000 miles of cable and wire.

      1,110 miles of cable and wire

      may be used.

      This much wire would stretch from

      Denver to Chicago.


Electrical work 2x500 reference plant

Electrical Work2x500 Reference Plant

  • Electrical and Cabling work includes

    • Internal Plant wiring

    • Internal Power Distribution Cabling & Supports

    • Exterior Transmission interface

    • Control Wiring

  • Work is performed by Electricians and Linemen

  • Typical plant requires over 6 million lineal feet of cable and wire.


Instruments and controls 2x500 reference plant

Instruments and Controls2x500 Reference Plant

  • Work includes all control system installation for mechanical and electrical systems.

  • Distributed Control Systems (DCS) is the brain and nervious system of the power plant.

  • Work is performed by specialized control technicians, electricians, HVAC and plumbers.


Power plant totals

Power Plant Totals


Coal nuclear gas

Coal, Nuclear, Gas

  • U.S. Coal plants are aging and though fuel source is plentiful, environmental concerns will hinder future growth of coal plants in the U.S. “Clean coal” technologies are complex, expensive and inefficient.

  • U.S. Nuclear plants are aging and regulatory and complexity will hinder future growth of Nuclear plants in the U.S.

  • Natural gas combined cycle plants are very efficient, flexible and cost effective to build. With the advent of advanced gas recovery techniques (Fracking) the U.S. is poised to have a new resurgence of combined cycle plant construction in the U.S.


Hydro wind solar

Hydro, Wind, Solar

  • Hydro capacity is not likely to increase in U.S. Large dams will not be built in the U.S. in the near future due to environmental, regulatory and cost constraints.

  • Wind technology is well developed but over all costs are still higher than fossil plants and this source is largely subsidized.

  • Solar technology is still developing and is largely subsidized but PV panel costs are falling fast and both utility and distributed (rooftop) scale implementations are promising

  • Storage/availability remains a significant issue for windand to lesser degree solar


Legal issues presented by power construction projects

Legal Issues Presented by Power Construction Projects


Owner furnished equipment

Owner-Furnished Equipment

  • Power plants are primarily equipment plus connections and controls.

  • Equipment costs are the largest single component of construction costs.

  • Owners often prefer to purchase the major equipment directly.

  • Owner-Furnished equipment presents unique problems.


Owner furnished equipment1

Owner-Furnished Equipment

  • Worst-case scenario for contractor:

    • Owner furnishes equipment.

    • Contractor responsible for delays in delivery.

    • Contractor responsible for inspection of equipment upon arrival.

    • Contractor responsible for storage of equipment.

    • Contractor responsible for defects in equipment not discovered in initial inspection.


Owner furnished equipment2

Owner-Furnished Equipment

  • More reasonable approach:

    • Owner furnishes equipment.

    • Delays are compensable.

    • Owner and contractor responsible for inspection upon arrival for physical damage.

    • Owner responsible for storage until project is ready to accept equipment.

    • Owner responsible for latent defects in equipment.


Owner furnished equipment3

Owner-Furnished Equipment

  • Warranties should always be the responsibility of the party furnishing the equipment.

    • May be complications due to equipment connections.

    • Best solution: contractor warrants connections, owner warrants equipment

  • Ditto for manuals, training, spare parts.


Any questions

Any Questions?


Thank you

Thank You


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