Wind Energy Western Oklahoma

Windfarm Panel Discussion

EEI 2007 Fall Meeting 1

Tower Erection

EEI 2007 Fall Meeting 2

Tower Erection

EEI 2007 Fall Meeting 3

Tower Erection

EEI 2007 Fall Meeting 4

Anyone Up for a Short 250 ft. Climb?

EEI 2007 Fall Meeting 5

EEI 2007 Fall Meeting 6

EEI 2007 Fall Meeting 7Entry

EEI 2007 Fall Meeting 8

EEI 2007 Fall Meeting 9

EEI 2007 Fall Meeting 10

EEI 2007 Fall Meeting 11

Wind TurbineWind Turbine Design Criteria

Machine General Design ConfigurationMachine Life Safety Features and Electrical Clearance RequirementsMachine Enclosure Construction and FinishesMachine Inherent Fire Hazards and Protection M h dMethods

EEI 2007 Fall Meeting 12

AWEA Safety CommitteeAWEA Safety Committee

EEI 2007 Fall Meeting 13

Fall Occupational Safety andFall Occupational Safety and Health Committee Conference

Tucson, AZ

Roger Bollinger

Kansas City Power & Light

Spearville Wind Energy FacilitySpearville Wind Energy Facility

Injuries and Near MissesInjuries and Near Misses

• Strains – From climbing and heavy liftingStrains From climbing and heavy lifting• Hand injuries – not using proper tools

El t i l h k PPE• Electrical shock – no PPE• Heat Exhaustion – dehydration• Dropped Tools – from 80 foot level• Inattention – repositioning equipmentInattention repositioning equipment

Injuries and Near MissesInjuries and Near Misses

• Distractions – during crane operationDistractions during crane operation• Broken foot – dropped door panel• Eye injury splashed cleaner• Eye injury – splashed cleaner• Ladder fall – ladder not secured

F ldi l i d t l• Fumes – welding galvanized steel• Fall Protection - Unaware

A typical day on the maintenance team will require that you access the hub area at least once during the dayarea at least once during the day.

Accessing the hub.

Entering the hub

Not following Safety Procedures will get you entry into this area!

…and you will get to see this sights like this again.

Wind Turbine ConstructionWind Turbine Construction Safety Issues

EEI ConferenceOctober 2, 2007

Construction Safety Concerns Wind ProjectsWind Projects

• Heavy Lifts• Fall from heights• Fall from heights• Dropping objects from tower platforms• Mobile equipment • Slip, trips on uneven surfacesp, p• Crushing hazards and pinch points• Heat Stress & Hypothermia• Heat Stress & Hypothermia

Heavy LiftsHeavy LiftsSafety Processes & Plans

• Critical Lift Plans are required. Include:1. Weight calculations2. Supervisory/safety sign-offs3. Pre-lift plan & briefing

• Rigging inspections should be performed by the “team”.

• During job briefing, discuss job assignments, tag line use, g gcommunications.

Fall from heightsFall from heights

• Strict enforcement of fall protectionStrict enforcement of fall protectionstandards & site policiesCli b t i i d t t• Climb training and test processes

• Reinforcement of fall protection site rules at mass safety meetings, tailboards, and stand-downs

Dropping objects inside the tower• Injuries have occurred when bolts, nuts,

and small tools drop from one platform to p panother.

• Injuries have occurred when tower cable jcomponents have fallen to lower elevations.

• Injuries have occurred when material is being lowered from upper to lower l tielevations.

Falling objects – countermeasure - foam seala g objects cou te easu e oa sea

Falling objects– countermeasure - blanketsa g objects cou te easu e b a ets

Falling objects - countermeasure – rappel racka g objects cou te easu e appe ac

Slips & trips on uneven surfaces

• Constant road work produces uneven f f lsurfaces for employees.

• Weather conditions produce mud, ice and washouts.

• Rock from excavating is a constant gchallenge for trips and falls.

Crushing hazards/pinch points

• Use of heavy tooling contributes to pinch point hazards.

• Rigging practices produce potential for gg g p p pcrushing injuries.

• Improper tool use results in hand injuriesImproper tool use results in hand injuries.

Pinch point potentialPinch point potential

Crush potential -Nacelle riggingCrush potential Nacelle rigging

CountermeasuresSli T i Pi h P i tSlips, Trips, Pinch Points

H d S f t A T i i• Hand Safety Awareness Training• Presentations at safety meetings &

tailboards• Safety inspections of road worky p• Attention to rock removal, road grading,

and housekeeping practicesand housekeeping practices

Countermeasures Heat Stress & HypothermiaHeat Stress & Hypothermia

• Training• Training 1. Appropriate clothing2 R i i f i &2. Recognition of signs & symptoms3. Continual hydration4. Breaks5 Availability of water & juices5. Availability of water & juices

Centennial Wind Energy Ft Supply Oklahoma Ft Supply, Oklahoma

OG&E’s FleetCentennial Wind EnergyCentennial Wind Energy

OG&E Centennial Project

• 120 MW consisting of 80 GE 1.5 MW SLE TurbinesTurbines

• Location: 8 Miles North of Ft Supply, OklahomaOklahoma

• Capital Cost: Approximately $200 Million• First Unit in Commercial Operation Date• First Unit in Commercial Operation Date

Dec. 15, 2006• Estimated Production Cost of• Estimated Production Cost of

Approximately $34/MWH over the life of the plantp

Current TechnologyGE 1 5SLE Wind TurbineGE 1.5SLE Wind Turbine

Rated Capacity = 1.5 MWCut In Wind Speed = 7 MPH

Rated Wind Speed = 25 MPHRated Wind Speed = 25 MPH Cut Out Wind Speed = 55 MPH

Hub Height = 262 ft Rotor Diameter = 252 ftRotor Diameter 252 ft

Active Blade Pitch ControlElectro-Mechanical Yaw Control

Full Supervisory Control and Data p yAcquisition (SCADA) Capabilities

Turbine CharacteristicsTurbineTurbine

118 M (387ft) Overall height• Nacelle mounting

height 80 M (262 ft)

Football field 110 M (Including end zones)

ft)

• Blade diameter 77 M (253 ft)

(Including end zones) Statue of Liberty

95 M

Big Sand Box

Foundation base Mat(50 foot octagon)(50 foot octagon)

Pouring Foundation(254 cubic yards of concrete)

Backfilling around base(terraced backfilled and compacted)

Foundation ready for DTA

Down Tower Assembly

Components Ready for Assembly

Ready to assemble

Blade perspective

Setting Base

Weighs 48 tons

Assembly

Setting Top

Setting Nacelle (60 Tons)

Base of tower

Tip to tip distance 82 inches

Base mounting assembly

Tower Entry

Inside tower at the base

Materials handling

Materials hoist opening

View to first landing 80ft up

Ladder to second landing

Climb to the second landing

Entrance to nacelle

Inside of Nacelle

Uneven walking/working surfaces

Sway switch/auto shutdown

High speed end of gear box

Generator and gear box

Generator control/metering cabinet

Cooling air blowers for Generator

Cooling air intake vents

Bottom of nacelle air intake vents

Air intake for Turbine

Hub LOTO boundary

Fan shaft and exit point to roof

Exit hatch from Nacelle to top

Fall protection anchor point

Top of nacelle note fall protection anchor

Weather station and FAA lighting

Hub entry point and view to ground

Hub entrance

Hub entry

Inside of Hub (cooling air modification)

View into hub

Blade pitch controls

Inside of blade pitch control box

Blade pitch drive motor

Base of blade

Brake assembly

Blade View

Blade view

Getting ready to re-enter nacelle

Conductors from Generator

Conductors from Gen to transformer

Conductors from Generator to transformer

Excess Conductor for rotation of nacelle

Transition to shielded wire way

Ladder down

Control cab from first level

Ground level

Transformer from generator to substation

Substation to transmission lines

View from Base up to blades

Centennial Control room

View of turbines from top

More pictures from top side

Questions ???