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Transcript of Energy Analytical Models: A Holistic Energy Assessment Technique Doug Dixon Pacific Northwest...
Energy Analytical Models: A Holistic Energy
Assessment Technique
Doug Dixon
Pacific Northwest National Laboratory
20 June 2007
Fort McPherson/SERO HQ
Fort Gordon
Fort Stewart
Hunter Army Airfield
Fort Buchanan
Fort Campbell
Fort Knox
Redstone Arsenal
Fort Benning
Fort Rucker
Anniston AD
Fort Gillem
Milan AAP
Holston AAP
Mississippi AAP
Blue Grass AD
Fort Bragg
MOT Sunny Point
KY
TN
MS AL GA
FL
NC
PR
SC Fort Jackson
United States Army Garrison - Miami
Agenda
Army SE Region Energy Performance Energy Modeling/Assessment Results
at SE Region Installations What is the Facility Energy Decision
System (FEDS)? Other applications of FEDS
SE Region Glide Path Performance(through FY 2006)
Southeast Region Energy Reduction Glide Path
70
75
80
85
90
95
100
105
110
115
2000 2005 2010 2015
MM
Btu
/ksf
30% Reduction From 2003 by 2015
SERO Actual
3.7% Annual Reduction Required to Meet Goal
SERO Installation Energy Assessments
SERO conducted comprehensive installation energy assessments using the Facility Energy Decision System (FEDS) software.
Specific goals of these assessment were:
Establish baseline for installation energy consumption and costs.
Identify and prioritize cost-effective energy projects for funding via third party financing (ESPC, UESC, BPA), and/or government funding (ECIP, OMA).
Estimate impact on energy demand and consumption from new building construction, demolition, renovation, utility modernization, O&M, and energy-specific retrofits.
Provide input for Installation Long-Range Energy Management Plan.
FEDS General Approach Collect information on building inventory, energy-related
infrastructure, energy consumption and prices
Sort building inventory into groups with common characteristics and audit representative buildings (typically 25-30 buildings)
Characterize central energy plant and thermal distribution system performance
Utilize Facility Energy Decision System (FEDS) building energy model to calculate energy consumption of building groups
Calibrate the model to actual energy use using actual weather data
Utilize the model to predict energy use impact of infrastructure changes, and identify life-cycle cost effective retrofits using typical weather data (TMY).
SE Region FEDS Results
Installation Report Installed Cost Annual Savings Energy Savings SIR PaybackDate ($) ($/year) (MMBtu/year)
Redstone Sep-04 $26,321,875 $4,921,051 267,879 3.34 5.35Jackson Jul-04 $8,699,411 $1,543,561 130,743 3.06 5.6Benning Sep-04 $13,509,084 $2,129,752 254,350 2.7 6.3Buchanan Jan-05 $5,540,791 $954,019 31,390 2.97 5.8Knox Jun-04 $21,387,505 $3,239,873 342,808 2.7 6.6Stewart Apr-04 $6,894,191 $1,176,844 118,675 3 5.9Hunter AAF Apr-04 $2,957,572 $827,727 44,173 4.8 3.6Campbell Apr-04 $25,010,385 $3,230,739 221,692 2.3 7.7Gordon Feb-05 $8,745,217 $1,326,014 152,928 2.52 6.6Bluegrass Jan-05 $1,948,710 $285,502 22,302 2.68 6.8McPherson Apr-04 $4,471,461 * 50,905 2.65 *Gillem Apr-04 $2,958,995 * 40,971 1.73 *Bragg Jan-05 $17,932,191 $3,379,533 323,732 3.2 5.3Anniston Jun-05 $5,424,137 $710,631 51,075 2.1 7.6Sunny Point Jan-05 $181,881 $35,871 1,280 3.2 5.1Totals $151,983,406 $23,761,117 2,054,903
*Annual Savings and Payback not available for McPherson and Gillem
FEDS Opportunities FEDS run for both appropriated funding and
alternatively-financed projects.
Retrofit Type
Energy Savings (Million Btu/yr)
Annual Savings ($/yr)
Installed Cost ($)
Net Present Value ($)
SIRSimple
Payback (yr)
Envelope Total 237,316 2,497,275 15,113,057 31,263,664 3.08 6.05
Cooling 20,846 238,641 1,359,744 1,365,509 3.07 5.70
Heating Total (27,345) 856,949 3,778,066 8,603,448 4.09 4.41
Hot Water Total 5,674 207,464 433,289 2,030,256 7.96 2.09
Lighting Total 30,986 1,114,801 5,575,723 13,858,293 3.47 5.00
Motors Total 402 5,921 61,996 5,180 1.10 10.47
Grand Total 267,879 4,921,051 26,321,875 57,126,350 3.34 5.35
Alternative Financing Total
164,102 4,195,856 14,901,857 28,251,922 2.87 3.55
Summary of Potential Energy and Cost Savings for Redstone Arsenal Using Appropriated Source of Capital
16%16%10%10%
White Sands Missile Testing Center
Fort Sill
Fort BlissFort Hood Fort Polk
Pine Bluff Ars
McAlester AAP
Red River ADLone Star AAP
Camp Stanley Storage Actv
Louisiana AAP
Fort Sam Houston
Corpus Christi AD
Presidio of Monterey
Fort Irwin
Yuma Proving Ground
Fort Hauchuca
Riverbank AAP
Sierra Army Depot
Hawthorne AD
Fort Hunter Liggett (USAR)
FEDS Assessments Completed FEDS Assessments Completed at Army Installationsat Army Installations
Natick R & D Ctr
Devens RFTA (USAR)
Fort McPhersonFort Gordon
Fort Stewart/Hunter AAF
Fort Jackson
Fort Buchanan
Fort Benning
Fort RuckerFort Gillem
Mississippi AAP
Fort BraggMOT Sunny Point
NERO
SWRO
Fort Shafter
Schofield Barracks
Fort Wainwright
Fort Richardson
Ft. GreelyPARO
Tokyo/YokohamaAkizuki/KureZama/Sagamihara
Okinawa Kwajalein
Detroit Ars
USAG Selfridge
Lima Army Tank Plt
Fort McCoy (USAR)
Fort Leonard Wood
Fort RileyFort
Leavenworth
Iowa AAP
Kansas AAP
Lake City AAP
Dugway Proving Ground
Pueblo Depot
Fort CarsonTooele AD
Deseret Chem Depot
Fort Lewis
Yakima TrainingCenter
Umatilla Chem Depot
Rock Island Arsenal
USAG Miami
Moffett FieldRFTA (USAR)
Fort Drum
Fort MonmouthPicatinny Arsenal
Watervliet ArsFt. Hamilton
Fort Dix (USAR)
West Point
Fort Belvoir
Aberdeen Proving Ground
Fort StoryFort Lee
Fort EustisFort Monroe
Ft. AP Hill
Radford AAP
Letterkenny AD
Carlisle Barracks
Fort McNairFt. Meade
Fort Myer
Walter Reed
Ft Detrick
Tobyhanna Army Depot
Adelphi Lab Ctr
Scranton AAP
SERO
NWRO
Parks RTFA
FEDS Completed
Redstone ArsenalAnniston AD
Holston AAPFort Campbell
Fort Knox
Milan AAP
Blue Grass AD
Facility Energy Decision System
An Overview of
FEDS - What is it?
FEDS is a fuel-neutral, technology independent, comprehensive method for quickly and objectively identifying building energy efficiency improvements that offer maximum savings
Why was FEDS Developed?
Large military bases needed a tool to help them determine where their energy was going and what energy opportunities existed Bases had:
– hundreds and often thousands of buildings, and usually only one meter
– little detailed engineering information on individual buildings
– limited understanding of utility information Key elements missing in existing software
programs
FEDS Design Goals FEDS was designed with two major purposes in
mind: estimating current energy consumption for all energy
systems under consideration determining the minimum life-cycle-cost retrofits to
systems within a facility and on an installation (considering all interactive effects) and includes estimating:
– pre- and post-retrofit consumption– first cost of the retrofits– recurring O&M costs for the retrofits– value of the change in annual energy consumption and annual
O&M requirements– net present value of the retrofits
Peak tracking
Life-cyclecost
optimization
Technology & fuel
independence
Financial options
FEDS is
A FEDS CaseInstallation Information
Building Set Records
End Use Inputs
Technology Records
FEDS Building Types
Civilian: Assembly Education Food sale Food service Health care Lodging Mercantile service Office Public Order Warehouse/storage Other building Single family detached Single family attached Mult. Units 2-4 Mult. Units 5 or more Mobile Home
Military:AdministrationBarracksChapelClinicClubCommissaryDining hallElectronicsExchangeHangarHospitalHotelLabLaundryMorale,welfare &
recreationOther
Production/process
Recreation
Schools/training
Security
Shops
Storage
Warehouse
Single family detached
Single family attached
Duplex
Mult.unit 3+
Single family mobile
Special: Commissary - Sales Commissary - Warehouse
Guidance for Developing Building Sets
Always: Type Size (sf) Age (yr) Fuel
Availability
As Applicable: Operation/occupancy Envelope Lighting Heating Cooling Ventilation Service hot water Miscellaneous equipment Motors
FEDS Required Inputs
Installation and Financial Information Location and Analysis Year Energy Price Data Cost of Money (if not DOE/EIA)
Building Information Type, Age, Size, and Quantity Operating Hours Equipment (Lights, Heat, Cool, Hot Water)
FEDS Results
Energy consumption: total, by fuel type, by end use, by building set, by central plant
Suggested retrofits: specific technologies to install and replace, capital cost, energy and cost savings, net present value
Peak demand: amount and time, for installation and by building set
Emissions: by pollutant type, by building set
Report Options A summary report of the energy, demand,
dollar, and air pollution emissions impacts for the installation, central plants, and building sets (*.txs)
A detailed retrofit report (*.txd) A detailed spreadsheet of retrofit data (*.csv) An Energy Conservation Investment Program
report (*.ecp) – for single retrofits only (no bundling)
Other FEDS Uses
Evaluate alternative sustainable building designs
Analyze fuel switching Value “deals” Assess impacts of change Apportion reimbursable customers Central plant and thermal loop
analysis (optimize amount of decentralization)
Building Design Evaluation
Use FEDS to assess the impact of building designs during the design review stage. FEDS can indicate the impact the new building(s) will have on your facility (energy and dollars), and it can indicate energy efficient retrofit technologies before the design goes to construction.
Facility Energy Decision System