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Coffee Coffee Coffee, Coffee, ConversationConversation
and CHPand CHPPresented by:
Mike ButerOperations Manager
PRESENTATION OUTLINEPRESENTATION OUTLINEAPS Energy Services Company, Inc.Traditional Energy SystemsAlternative Energy SystemsPros and ConsProject Review
APS ENERGY SERVICESAPS ENERGY SERVICESConsolidated Assets of $11.5 Billion
Annual Revenues of $3.4 BillionConsolidated Assets of $11.5 Billion
Annual Revenues of $3.4 Billion
Energy Services: Customized energy solutions that improve the quality and efficiency of a facility while maintaining efficiency of a facility while maintaining desired aesthetics (e.g. lighting and HVAC)
Renewable Technologies: Renewable energy alternatives designed provide
Energy Efficiency, Commodity and District Energy Customers
energy alternatives designed provide sustainability to campus settings.
Build, Own, Operate and Maintain:Energy Systems such as cogeneration, photovoltaic and biomass plants.
District Energy: The design, construction, Major Cities
gy g , ,operation, production and distribution of district energy, providing alternative life-cycle economics for individual buildings. Licensed General Contractors, AZ, CA, NM, NVLicensed General Contractors, AZ, CA, NM, NV
APS ENERGY SERVICES’ PLANT NETWORKAPS ENERGY SERVICES’ PLANT NETWORK
Chase FieldDowntown Phoenix
Phoenix Convention CenterPhoenix Convention Center
Ch Fi ldCh Fi ld
3,000 Tons (12,000 Tons at build-out)20,000 T-Hr Ice (60,000 T-Hr Ice at build-out
Sierra PineMartel, CA
Tucson District Energy
Tucson Convention Ctr.
(cogen plant)
Phoenix
Midtown Tucson
Police - Fire
Chase FieldChase Field(Home of the Arizona (Home of the Arizona
Diamondback’s)Diamondback’s)
Arizona State University CHPArizona State University CHP
13,200 Tons (15,200 Tons at build-out)36,000 T-Hr Ice
10 000 Tons (18 000 Tons at build out) CENTRAL CENTRAL OPERATIONS CENTEROPERATIONS CENTER
Downtown Phoenix24/7
Arizona State University
Downtown Phoenix
Sierra PineSierra Pine
10,000 Tons (18,000 Tons at build-out)8 MW (16 MW at build-out)80,000 pph (160,000 pph at build-out)
4 MW
Northwind Phoenix Ice
Plant #1Ch Fi ld
University Tempe
Campus CHP
Phoenix Convention
Center
Tucson Convention CenterTucson Convention Center
4 MW40,000 pph
4,000 Tons (8,000 tons at build-out)1 6 MW Chase Field
Arizona State University
PolytechnicCampusMidtown Tucson Police Midtown Tucson Police -- FireFire
1.6 MW40 mmBtu/hr
150 Tons10 mmBtu/hr10 mmBtu/hr
TRADITIONAL v. ALTERNATIVE ENERGY SYSTEMSTRADITIONAL v. ALTERNATIVE ENERGY SYSTEMS
Electric Utility Electricity TRADITIONAL ENERGY SYSTEMSTRADITIONAL ENERGY SYSTEMS
Cogeneration (Combined ALTERNATIVE ENERGY SYSTEMSALTERNATIVE ENERGY SYSTEMS
(Grid Power)Electric Chillers
St /H t W t B il
Heat & Power)Absorption Chillers
W t H t R B ilSteam/Hot Water Boilers Waste Heat Recovery Boiler
Photovoltaics (Solar)
GRID POWER v. COGENERATION: PROS & CONSGRID POWER v. COGENERATION: PROS & CONS
ProsGRID POWERGRID POWER
ProsCOGENERATIONCOGENERATION
Typically Reliable EnoughIt IS NIMBYCapital Responsibility by
More Reliable with GridBacks-Up to Grid PowerHigh EfficiencyCapital, Responsibility by
OthersNo Long-Term Commitment
C
High EfficiencyReduced EmissionsLower Carbon Footprint
ConsGrid not Backed UpLess Efficient
ConsCapital InvestmentOn-Site
Greater EmissionsReliability Impacted by Others on Grid
O&M ResponsibilityLong-Term CommitmentFuel Price Fluctuations
GRID POWER v.COGENERATIONGRID POWER v.COGENERATIONWhy is a Cogeneration Plant More Efficient than a Typical Power Plant?
Location and High Grade Heat• Imagine Using Your Car Radiator to Heat Your Home… That’s Cogeneration!g g g
NONNON--COGENERATIONCOGENERATION COGENERATIONCOGENERATIONSteam27%
Waste26%
Steam44%
Waste55%
Electricity18% Electricity
30%
45% of Fuel is Used
30%
74% of Fuel is Used
GRID POWER v. COGENERATIONGRID POWER v. COGENERATIONANNUAL WATER CONSUMPTIONANNUAL WATER CONSUMPTION
(millions of gallons)(millions of gallons)Assumes 0 5 gal/kWh Utility Water Usage 6 2 MWs and 96% Load Factor
30
Assumes 0.5 gal/kWh Utility Water Usage, 6.2 MWs and 96% Load Factor
20
25
10
15
0
5
Non Cogeneration Cogeneration*Non-Cogeneration Cogeneration**Arizona State University
ALTERNATIVE ENERGY PROJECTSALTERNATIVE ENERGY PROJECTSSierra Pine - CA
4.5MW Cogeneration Plant
COGENERATIONCOGENERATION
City of Rohnert Park, CA30kW S t
SOLARSOLAR GREEN CREDITSGREEN CREDITSUC/CSU
17MW
30kW System
City of Flagstaff, AZ15kW S t
Northern Nevada Correctional Center1,000kW Electric Generation
(additional future 30kW solar)
BIOMASSBIOMASS
COMBINED HEAT & POWERCOMBINED HEAT & POWER
15kW System
Arizona State UniversityArizona State University
16MW Plant Construction and 20-Year Operations
COMBINED HEAT & POWERCOMBINED HEAT & POWER Arizona State University30kW System
Yavapai Apache Nation
White Pine County School DistrictLow Pressure Steam at 3MMBtu/Year
Yavapai-Apache Nation30kW System
Hualapai Indian Nation (in progress)( p g )
Future 33kW System
PROJECT: PROJECT: PROJECT: PROJECT: CITY OF TUCSON CITY OF TUCSON NATURAL GAS FIRED COGENERATION & NATURAL GAS FIRED COGENERATION & ABSORPTION CHILLERABSORPTION CHILLERABSORPTION CHILLERABSORPTION CHILLER
PROJECT: CITY OF TUCSONPROJECT: CITY OF TUCSON
Central Plant BeforeCentral Plant Before
DISTRICT HEATING, COOLING & COGENERATIONDISTRICT HEATING, COOLING & COGENERATION
Aging Central PlantServed Heating and Cooling to Convention
Central Plant BeforeCentral Plant Before
Served Heating and Cooling to Convention Center Complex, Police and Fire Headquarters
$5 Million Invested - All Private FundsCentral Plant AfterCentral Plant After
New Chiller, Controls, Switchgear, Transformers, Cogeneration, Heat Recovery Boiler, Pumps, Cooling Tower W k Pi i d B ildiWork, Piping and Building
BuildingSwitchgear
THE EQUIPMENT (EXTERNAL):THE EQUIPMENT (EXTERNAL):
Transformers
Cogeneration Unit and Heat Recovery THE EQUIPMENT (INTERNAL):THE EQUIPMENT (INTERNAL):
Cogeneration Unit and Heat Recovery Boiler from General Electric
Produces 1605 kW of Electricity, 4 Million Btu/Hr of Heating and4 Million Btu/Hr of Heating and300 Tons of Cooling
HRBHRB
EvaporativeEvaporativeCoolerCooler SS SilencerSS Silencer Exhaust Exhaust
FanFan
New 500 Ton Hot Water New 500 Ton Hot Water Absorption ChillerAbsorption Chiller
Cameras for Continuous Viewing from Remote Location
Remote Monitor
PROJECT: CITY OF TUCSONPROJECT: CITY OF TUCSONINTERNET BASED MONITORING & CONTROLINTERNET BASED MONITORING & CONTROL
Engine Manufacturer’s Building
PROJECT: CITY OF TUCSONPROJECT: CITY OF TUCSONENERGY EFFICIENCYENERGY EFFICIENCY
MMBtu/Hr % of InputEnergy Input
Fuel (LHV) 13.50
Thermal OutputHeat from Jacket Water 0.95 7%
H t f E h t* 3 16 23%Heat from Exhaust* 3.16 23%Subtotal 4.11 30%
Electrical Output 5.48 41%Useful Energy Output 9.59 71%
PROJECT: PROJECT: PROJECT: PROJECT: NO. NEVADA CORRECTIONAL CENTER NO. NEVADA CORRECTIONAL CENTER WOOD FIRED (BIOMASS) WOOD FIRED (BIOMASS) COGENERATIONCOGENERATIONCOGENERATIONCOGENERATION
PROJECT: NO. NEVADA CORRECTIONAL CENTERPROJECT: NO. NEVADA CORRECTIONAL CENTERWOOD FIRED (BIOMASS) COGENERATIONWOOD FIRED (BIOMASS) COGENERATION
‘RENEWABLE ENERGY CENTER’‘RENEWABLE ENERGY CENTER’
Green Field Project Interconnected with Utility GridGreen Field ProjectLocated in Carson City, NV1,000kW Electrical Output31 050 Lb /h St O t t
Interconnected with Utility GridSupplies Prison Steam and ElectricityExcess Electricity Sold to Electric UtilityIncludes Photovoltaic Component31,050 Lbm/hr Steam Output Includes Photovoltaic Component
PROJECT: NO. NEVADA CORRECTIONAL CENTERPROJECT: NO. NEVADA CORRECTIONAL CENTERFuel Storage
80’ x 17’ x 5’ Deep 50 Tons of Wood (2 days)50 Tons of Wood (2 days)Covered/Sprinkled
Fuel Conveyor Systemy yTwo (2) Traveling Augers Carbide Tip ScrewsTransports Fuel from Bunker to Boiler
AUGER WALLTransports Fuel from Bunker to Boiler Metering BinFully Automated Belt Travel System23’ El ti Ri23’ Elevation Rise
CONVEYOR BELT
NNCC BIOMASS (WOOD) COGENERATIONNNCC BIOMASS (WOOD) COGENERATIONWOOD STORAGEWOOD STORAGE
PROJECT: NO. NEVADA CORRECTIONAL CENTERPROJECT: NO. NEVADA CORRECTIONAL CENTER1MW Steam Turbine Generator
1000kW 4 Pole 1800rpm 12 47kV 3 Phase 4 Pole, 1800rpm, 12.47kV, 3 Phase Generator Control with Auto Sync Relaying
900HP Wood-Fired Boiler31,050 Lbs/Hr 135 psi SteamWet Bottom Ash ConveyorWet Bottom Ash ConveyorReciprocating Bottom Grate4,750 Lbs per Hour of Wood Chips
PROJECT: NO. NEVADA CORRECTIONAL CENTERPROJECT: NO. NEVADA CORRECTIONAL CENTERMULTIMULTI--CYCLONE COLLECTORCYCLONE COLLECTOREmissions Control
Re-Injects Particulates for RecombustionFly Ash CollectionFly Ash CollectionReduces Emissions 50% More than EPA Requirement40’ Stack100HP Induced Draft FanCompliance Opacity Monitoring System
BAGHOUSE
Compliance Opacity Monitoring System
BAGHOUSE
PROJECT: NO. NEVADA CORRECTIONAL CENTERPROJECT: NO. NEVADA CORRECTIONAL CENTERSolar (Photovoltaic)
30kW System RatingUni Solar® Thin Film LaminatesUni-Solar® Thin Film LaminatesSouth Facing Single Slope BuildingBack Feeds 480V Breaker in Plant
PROJECT: PROJECT: PROJECT: PROJECT: WHITE PINE COUNTY SCHOOL DISTRICT WHITE PINE COUNTY SCHOOL DISTRICT WOOD FIRED (BIOMASS) HEATING WOOD FIRED (BIOMASS) HEATING BOILERBOILERBOILERBOILER
PROJECT: WHITE PINE COUNTY SDPROJECT: WHITE PINE COUNTY SDReplaced Old Fuel-Oil Fired Heating System
Wood-Chip Heating System is Fueled by a Portion of Area’s Thousands of Tons of Branches, Twigs and Needles Cleared to Abate Forest and Rangeland Fire Dangers
Utilizes a Low-Emission Economical Biomass Fuel SourceUtilizes a Low-Emission, Economical Biomass Fuel SourceKey Features:
Hurst Boiler with Messersmith Combustor Base ELY ELEMENTARY SCHOOL ELY ELEMENTARY SCHOOL
BTU Output: 3 MMBtu/Hour Auger/Conveyor/Metering Bin Fuel Feed System2560 Cubic Feet 5’ Deep Chip Storage Bin 2560 Cubic Feet, 5 Deep Chip Storage Bin (approx. 3 week supply)Boiler Fire Levels: 1500, 1750, 2000 Degrees FahrenheitInternet Based Control InterfaceInternet-Based Control Interface
PREPRE--ENGINEERED BUILDINGENGINEERED BUILDING
BOILERBOILER
PROJECT: WHITE PINE COUNTY SDPROJECT: WHITE PINE COUNTY SD
Fuel Source: Pinon and Juniper Forest
FUEL SUPPLYFUEL SUPPLYp
Thinning Waste
Annual Usage: 168 Tons of Wood Chips
Delivery Size: 20 to 30 Tons per Load (2 to 4 week supply)
Multi Year U S Forest Service Contract Multi-Year U.S. Forest Service Contract at No Cost to School District
Fuel Heat Content: 6,600 BTU/lb with 30% to 45% Moisture Content
Burn Rate at Peak Demand: 180lbs/hr (at full load, 1 ton of chips lasts nearly 11 hours)
WOOD CHIP AUGERWOOD CHIP AUGER
WOOD CHIP CONVEYOR & METERING BINWOOD CHIP CONVEYOR & METERING BIN
BOILER COMBUSTION CHAMBERBOILER COMBUSTION CHAMBER
PROJECT PROJECT PROJECT: PROJECT: ARIZONA STATE UNIVERSITY ARIZONA STATE UNIVERSITY ARIZONA STATE UNIVERSITY ARIZONA STATE UNIVERSITY NATURAL GAS FIRED COGENERATIONNATURAL GAS FIRED COGENERATION
PROJECT: ARIZONA STATE UNIVERSITYPROJECT: ARIZONA STATE UNIVERSITYProject Drivers
Critical High-End Research NeedsSeamless/Clean/Redundant Seamless/Clean/Redundant Electrical Power Campus ExpansionSupport of State-of-the-Art Bio Science Research FacilitiesEnvironmental and Efficiency Considerations ARCHITECTURAL RENDERING (AUGUST ’04)ARCHITECTURAL RENDERING (AUGUST ’04)
PROJECT: ARIZONA STATE UNIVERSITYPROJECT: ARIZONA STATE UNIVERSITYCHP Equipment - Combined Cycle
Taurus T-70 Solar Combustion Turbine: 6.6 MWs at Site ConditionsMurray Steam Turbine: 1 9 MWs at Site ConditionsMurray Steam Turbine: 1.9 MWs at Site Conditions8.5 MW Gross Output: Uses Chilled Water Cooling Coils for Turbine Inlet Air Cooling
Heat Recovery Steam Generator (HRSG)y ( )32,000 lbm/hr of Steam (unfired); All can be Used by Steam Turbine80,000 lbm/hr of Steam (fired)
10 000 Tons of Electric Chillers10,000 Tons of Electric Chillers12 kV Chiller MotorsFive - 2,000 Ton Centrifugal Chillers
4 MW Emergency Diesel Gen-Sets
PROJECT: ARIZONA STATE UNIVERSITYPROJECT: ARIZONA STATE UNIVERSITYCOMBINED CYCLECOMBINED CYCLE
Brayton Cycle - Combustion Turbine CycleRankin Cycle - Steam Turbine Cycle Brayton Cycle Combustion Turbine CycleRankin Cycle Steam Turbine Cycle (typical power plant cycle)
PROJECT: ARIZONA STATE UNIVERSITYPROJECT: ARIZONA STATE UNIVERSITYCOMBUSTION TURBINE & GENERATORCOMBUSTION TURBINE & GENERATOR
Air Generator Inlet
Generator
Exhaust
GENERATOR + COMBUSTION TURBINEGENERATOR + COMBUSTION TURBINE
1.9 MW Steam Turbine
CONTROL ROOMCONTROL ROOM
HRSGHRSGHRSGHRSG
ExhaustExhaust
HRSG Duct BurnersHRSG Duct Burners
PROJECT: ARIZONA STATE UNIVERSITYPROJECT: ARIZONA STATE UNIVERSITYUtility
Substation
SEL-351Directional Overcurrent and
Reclosing Relay
Fiber Optic
RTU
750 Feeder
g y
Utility Breaker
750 Feeder Management
Relay
Generator B k
GenSetCustomer Loads
Breaker 489 GeneratorManagement Relay
Customer Loads
PROJECT PROJECT PROJECT: PROJECT: UNIVERSITY OF ARIZONA UNIVERSITY OF ARIZONA UNIVERSITY OF ARIZONA UNIVERSITY OF ARIZONA NATURAL GAS FIRED COGENERATION & NATURAL GAS FIRED COGENERATION & THERMAL (ICE) STORAGETHERMAL (ICE) STORAGETHERMAL (ICE) STORAGETHERMAL (ICE) STORAGE
PROJECT: UNIVERSITY OF ARIZONAPROJECT: UNIVERSITY OF ARIZONATwo Natural Gas Combustion Turbines (12MW)G id I d Q lif i F ili SGrid Interconnected, Qualifying Facility StatusHeat Recovery Steam Generator Converts Waste Exhaust Heat into Steam to Provide Heat and Electricity throughout the Campus100 Tank, 15,0000-Ton Hour Internal Melt Thermal Energy Ice Storage SystemThermal Energy Ice Storage SystemFacility Upgrades Include Variable Air Volume Retrofits, Energy Efficient Lighting, Facility Metering Motor Replacement Fume Hood Metering, Motor Replacement, Fume Hood Replacement, Energy Management Controls, Etc.
PROJECT: UNIVERSITY OF ARIZONAPROJECT: UNIVERSITY OF ARIZONA15,000 TON15,000 TON--HOUR THERMAL ENERGY STORAGEHOUR THERMAL ENERGY STORAGE
QUESTIONS? QUESTIONS?
Mike ButerMike ButerMike ButerMike Buter480.727.9064480.727.9064