Test Procedures and Energy Conservation Standards forCertain Equipment in ASHRAE Standard 90.1-2007Notice of Proposed Rulemaking (NOPR)Public MeetingBuilding Technologies ProgramOffice of Energy Efficiency and Renewable EnergyU.S. Department of EnergyApril 7, 2009http://www.eere.energy.gov/buildings/appliance_standards/commercial/ashrae_products_docs_meeting.html2Purposes•To present methodologies and characterize results forrulemaking analyses;•To discuss specific issuesrelated to each analysis;•To seek input from interestedparties on methodologies, assumptions, data sources, andresults from the analyses; and•To describe the next steps.Purpose of the Public MeetingIntroduction and Overview3Statutory Authority – Energy Policy andConservation Act, as amendedAddresses the requirementsof 42 USC 6313(a)(6)(A)-(B).The Energy Policy and Conservation Act (EPCA) directs DOE to consideramending the existing Federal energy conservation standard for each type ofequipment listed, each time ASHRAE Standard 90.1 is amended with respectto such equipment.For each type of equipment, EPCA directs that if ASHRAE Standard 90.1 isamended, DOE must review and adopt amended standards at the newefficiency level in ASHRAE Standard 90.1, unless clear and convincingevidence supports a determination that adoption of a more stringentefficiency level would:•Produce significant additional energy savings;•Be technologically feasible; and•Be economically justified.(42 U.S.C. 6313(a)(6)(A)(ii))Introduction and Overview4Opening Remarks•At this time, DOE welcomesopening remarks from interested parties on the NOPR forcertain ASHRAE Equipment.Comments from Participants•Participants are invited to provide summary comments or statements;•Participants are invited toraise additional issuesfor discussion today; and•Participants are invited to submit comments during theNOPR comment period, which isopen throughJune 3, 2009.Opening Remarks and Comments from InterestedParties on the Proposed Test Procedures andEnergy Conservation StandardsIntroduction and Overview5NOPR Analyses Flow DiagramDetermination of ScopeEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProceduresScope of Coverage Determination for the RulemakingTo determine the scope of coverage for ASHRAE Standard 90.1-2007equipment, DOE first reviewed all the changes made in ASHRAE Standard90.1-2007.DOE identified any apparent changes tothe efficiency levels of equipmentcovered by ASHRAE Standard 90.1-2007.DOE determined whether the apparent changes actually represent anincrease in efficiency from existing Federal standards, thereby triggeringDOE action.6Determination of Scope7Determination of ScopeASHRAE Standard 90.1-2007Scope of Coverage Determination SummaryEquipment ClassPreliminary DeterminationGas-fired Commercial WarmAir FurnacesNo action required.Oil-fired Commercial WarmAir FurnacesNo action required.Three-Phase Through-the-Wall Air-Cooled Air Conditioners andHeat PumpsEISA 2007 specifies amendedstandards.Three-Phase, Small-Duct, High-Velocity Air-Cooled AirConditioners and Heat PumpsEISA 2007 specifies amendedstandards.Commercial Package Air-Cooled Air Conditioners with a CoolingCapacity at or above 760,000 Btu/hDOE does not havethe authorityto consider amended standards.Water-Cooled and Evaporatively-Cooled Commercial Package AirConditioners and Heat Pumps witha Cooling Capacityat or above135,000 Btu/h and lessthan 240,000 Btu/hNo action required.Water-Cooled and Evaporatively-Cooled Commercial Package AirConditioners and Heat Pumps witha Cooling Capacityat or above240,000 Btu/h and lessthan 760,000 Btu/hFurther consider ASHRAEStandard 90.1-2007 efficiencylevels.Commercial Packaged BoilersFurther consider ASHRAEStandard 90.1-2007 efficiencylevels.Commercial Packaged Boiler Backsliding AnalysisEPCA’s “anti-backsliding” clause mandates that the Secretary shall notprescribe any amended standard that either increases the maximumallowable energy use or decreases the minimum required energy efficiencyof covered equipment. (42 U.S.C. 6295(o)(1); 42 U.S.C. 6316(a))ASHRAE Standard 90.1-2007 changes the efficiency metric for eightequipment classes of commercial packaged boilers from combustionefficiency to thermal efficiency.•Since there is no direct relationship or method ofcomparison for thermal and combustionefficiency, DOE developed ananalytical approach toassist in determining the relativestringencies of the thermalefficiency levels specifiedin ASHRAE Standard 90.1-2007compared to the Federal energy conservation standardsspecified in terms of combustionefficiency .•In order to make the comparison between efficiency metrics, DOE analyzed the averagerelationship between thermal and combustion efficiencyfor the minimally complyingequipment in DOE’s database. For each equipment class, DOE established an averagedifference between thetwo efficiency metrics.8Determination of ScopeCommercial Packaged Boiler Backsliding AnalysisDOE considered several additional factors in its backsliding analysis.•The accuracy and validity ofthe thermal efficiency ratings reported by manufacturers inequipment literature orin AHRI’s database.•The benefits of switching to a thermal efficiency metric andrequiring manufacturers to reportthermal efficiency for these eight equipment classes.•The overall energy savings that would result from adopting theefficiency levels in ASHRAEStandard 90.1-2007 comparedto current Federal energyconservation standards.Based on both its analytical approachand the additional factors considered,DOE has tentatively concluded that theefficiency levels in ASHRAE Standard90.1-2007 represent an increase in efficiency as compared to the existing Federalenergy conservation standards.DOE performed a market analysis, economic analysis, and energy savingsanalysis for all of the identified commercial packaged boiler equipment classesto consider energy conservation standards at the ASHRAE Standard 90.1-2007efficiency levels, as well as at levelsmore stringent than those found in ASHRAEStandard 90.1-2007.9Determination of Scope10NOPR Analyses Flow DiagramTest ProceduresEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProceduresDefinition of Combustionand Thermal Efficiency forCommercial Packaged Boilers(Issue #1)DOE is proposing changes to the definitions in the 10 CFR Part 431.82concerning commercial packaged boilers, including:•Add thermal efficiency definition to read: “Thermal efficiency for a commercial packagedboiler is determined using test procedures prescribedunder §431.86 and isthe ratio of theheat absorbed by the water or the water and steam to the higher heating value in the fuelburned.”•Amend combustion efficiency definition to read: “Combustion efficiency for a commercialpackaged boiler is determinedusing the test proceduresprescribed under §431.86 andequals to 100 percentminus percent flue loss (percent flue loss is based on input fuelenergy).”11Test ProceduresDOE seeks comment on its proposed definitions for“thermal efficiency” and “combustion efficiency” forcommercial packaged boilers.Test Procedures for Commercial Packaged BoilersSummary of the proposed changes effective 180 days on or after the final rulepublication date:•Updates to the test procedures for commercial packaged boilers in10 CFR Part 431 toreference the most recentversion of the Hydronics Institute (HI) BoilerTesting Standard (i.e. HIBTS-2000 (Rev06.07)).– DOE’s changes do not include any substantive changes to the actual test methods currently required forcommercial packaged boilers.•Elimination of the reference toan obsolete alternativetest procedure forsteel boilers – ASMEPTC 4.1.– The provision in 10 CFR Part 431 allowing for theuse of ASME PTC 4.1 as analternate test procedurefor steel commercial packaged boilers expired on October 23, 2006.Summary of the proposed changes effective on or after March 3, 2012:•Requirements for commercial packaged boilers to betested and rated forthe efficiency metric(i.e. combustion or thermal efficiency) that is applicable based on the proposed standard levelsfor each equipment class using the HI BTS-2000 (Rev06.07) testing procedure.12Test ProceduresTest Procedures for Commercial Packaged BoilersDual output boilers (capable of producing either steam or hot water)•DOE currently allows dual outputboilers to be tested as steam boilers andrated in bothsteam and hot water modes.•If the ASHRAE Standard 90.1-2007 efficiency levels areadopted as Federal standards,large steam boilers will be required to meet a thermal efficiency standard, while large hotwater boilers would berequired to meet a combustion efficiency standard.Small boilers,regardless of outputtype, will be required to meeta thermal efficiency standard.DOE is proposing to allow small dual output boilers to be tested for thermalefficiency in steam mode only and rated for thermal efficiency in both thesteam and hot water modes using the result of the thermal efficiency test insteam mode, or to be tested and ratedfor thermal efficiency separately ineach mode.DOE is proposing to allow manufacturers to rate large dual output boilers aslarge steam boilers based on the result of the thermal efficiency testperformed in steam mode, and as large hot water boilers based on the resultof the combustion efficiency test performed in steam mode. In addition, DOEis proposing to allow dual output boilersto be tested and rated separately ineach output mode.13Test Procedures14NOPR Analyses Flow DiagramMarket AssessmentEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProcedures15Market Assessment•To characterize the commercialboiler markets to determine available equipment efficiencies,manufacturers,and shipments.PurposeMarket Assessment16Equipment ClassesDOE is proposing 10 equipment classes of commercial packaged boilersdifferentiated by input capacity (i.e., small orlarge), fuel type(i.e., gas or oil),output (i.e., hot water or steam) and draft type (i.e., natural draft or other draft).DOE is proposing the following 10 equipment classes, which are consistentwith those specified in ASHRAE Standard 90.1-2007:•Small Gas Hot Water;•Small Gas Steam All Except Natural Draft;•Small Gas Steam Natural Draft;•Small Oil Hot Water;•Small Oil Steam;•Large Gas Hot Water;•Large Gas Steam All Except Natural Draft;•Large Gas Steam Natural Draft;•Large Oil Hot Water; and•Large Oil Steam.Market Assessment17Market AnalysisCommercial Packaged Boilers Overall Market Characteristics•Approximately 36,000 units covered by this rulemaking were shippedin 2007 (2007 AHRIdata).•DOE identified 46 brand names under which commercial packaged boilersare manufacturedor marketed.Performance Data Sources•DOE used the Instituteof Boiler and Radiation Manufacturers’ (I=B=R)Ratings for Boilers,Baseboard Radiation, Finned Tube (Commercial) Radiation, and Indirect-Fired Water Heaters(January 2008 Edition) as thebasis for its market analysis.•DOE used information found inmanufacturer catalogsto confirm information in the I=B=RRatings Directory whenever possible. DOE also usedinformation from manufacturerdatasheets to identifyefficiency ratings ofcommercial boilers thatare not I=B=R certified.Market Assessment18Dual output boilers are capable of operating in both hot water and steam mode.The data provided in the I=B=R Directory lists efficiency ratings for several dualoutput boilers.The test procedure for dual output commercial packaged boilers requires onlythat manufacturers test the steam mode,and allows them to rate the boiler’sperformance in both steam and hot watermodes using the results of the steammode test.For the NOPR analysis, DOE assumed theefficiencies listed for dual outputboilers were representative of the boilers being operated in the steam modebecause of the test procedure requirements for dual output boilers.Dual Output Commercial Packaged Boilers(Issue #2)DOE seeks information which would allow DOE to convert thesteam ratings in the I=B=R Directory and manufacturers’catalogs for dual output boilers to hot water ratings.Market Assessment19NOPR Analyses Flow DiagramEngineering AnalysisEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProcedures20Downstream Analyses•Life-Cycle Cost and PaybackPeriod•National Impacts AnalysisCost – EfficiencyRelationship

Incremental Contractor CostThermal EfficiencyCharacterize the relationship betweencontractor cost and efficiency(thermal efficiency or combustion efficiency).Purpose of the Engineering AnalysisEngineering Analysis21Efficiency-Level Approach•The efficiency level approachallows DOE to examine therelative costs of achievingincreases in energy efficiencylevels without regardto the particulardesign manufacturerswould use to achieve suchefficiency increases.•The efficiency levelsthat DOE considered in the engineering analysis for each equipmentclass are representative of commercial packaged boiler equipment available on the market.•DOE developed baseline cost andincremental costsbased on discussions with mechanicalcontractors.Representative Gross Output Capacities•DOE focused the engineering analysis on the gross outputcapacities identified in the April2000 Screening Analysis for EPACT-CoveredCommercial Heating,Ventilating and AirConditioning and Water-Heating Equipment–For small equipment (i.e. gross output capacity is between 300 and2,500 kBtu/h), DOEcollected data for commercial packaged boilers witha gross output capacity near 400kBtu/h, 800 kBtu/h,and 1,500 kBtu/h.– For large equipment, DOE collected data for commercial packaged boilers with a grossoutput capacitynear 3,000 kBtu/h.Engineering Analysis MethodEngineering Analysis22Data Collection•DOE contacted mechanical contractors to obtain data for commercial packaged boilersidentified by their efficiency,gross output, type of output, typeof fuel, and type of draftsystem.•DOE collected data across a range of efficiencies for various manufacturers near therepresentative gross output capacities.Aggregating Data to Develop Cost-Efficiency Relationship•DOE normalized the data for “small” commercial packaged boiler equipment classes byoutput capacity.•DOE aggregated the data for eachof the ten equipment classes and fita curve that bestcharacterized the cost-efficiencyrelationship.•DOE subtracted the baseline cost (i.e. the cost of equipment at ASHRAEStandard 90.1-2007 levels) to normalize the costdata in order to identify the incremental cost of achievinghigher efficiency levels.Results•A set of cost-efficiency results that represent thecost to increase the efficiency of anaverage boiler in each equipmentclass. The resultsdo not representany single boilerdesign, material, or manufacturer, but rather anaverage cost-efficiencyrelationship acrossall manufacturers anddesigns for the given equipment class.Engineering Analysis MethodEngineering Analysis23NOPR Analyses Flow DiagramLife-Cycle Cost and Payback Period AnalysisEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProceduresPurpose of the Life-Cycle Cost and PaybackPeriod AnalysisTo characterize the reduction in operational expenses, increases in installedcost, and resultant customer life-cycle cost savings and payback period forhigher efficiency commercial packaged boiler equipment.Analysis Components•Energy Analysis of Commercial Packaged Boiler Energy Consumption;•Markup Analysis Applied to Engineering Analysis Contractor Prices; and•Life-Cycle Cost and Payback Period Calculations.Life-Cycle Cost and Payback Period Analysis2425Life-Cycle Cost (LCC) equals customer installed price plus the sum ofannual operating costs discounted toa particular base year (2012, in thiscase) in 2008$.Economic evaluation from the customer perspective.Results are expressed as LCC savings (baseline minus standard level).Simple payback period (in years) is also calculated and reported in thisanalysis.Life-Cycle Cost and Payback Period AnalysisLife-Cycle Cost AnalysisCombine Changesin CostsLCC ResultsInstalled Cost(Customer Price + Installation Cost)Operating CostsConvert toPresentValueEnergy Analysis MethodEnergy Analysis•Conducted using Full Load Equivalent Operating Hour(FLEOH) estimates forCommercial Packaged Boiler used in Seven Building Types and 11 Climate Regions fromDOE’s 2000 Screening Analysis (77 Market Sectors).*•FLEOH is ratio of annual boiler heating loadto boiler capacity.Market Segmentation•States and Buildings within climate regions were assigned FLEOHs from appropriateclimate region.Annual Energy Consumption (inMillion Btu/yr) is calculated as:AEC = 0.001 x Boiler Capacity (kBtu/h) x FLEOH / EfficiencyseasonalEfficiencyseasonal= Thermal efficiencyfor non-condensing boilers= Adjusted thermal efficiency for condensing boilers(to reflect return watertemperature assumptions during the course of the year)Life-Cycle Cost and Payback Period AnalysisEnergy Analysis*U.S. Department of Energy Office of Energy Efficiency and Renewable Energy. Energy Conservation Program for Consumer Products:Screening Analysis for EPACT Covered Commercial HVAC and Water Heating Equipment Screening Analysis. April 2000.Note. These FLEOHs include impact of standby losses on energy use.26Markups to Determine Equipment PriceDistribution Channel Markup Chain Assumptions (from contractor purchase)•New Construction: Mechanical Contractor ->General Contractor-> Customer (100%).•Replacements: Mechanical Contractor -> Customer (100%).Inputs•Firm balance sheets data:– Mechanical Contractors:U.S. Census Bureau Financial Data for Plumbing, Heating, andAir-Conditioning Contractors,2002 and Air Conditioning Contractors of America (ACCA)financial analysis data.– General Contractors:U.S. Census Bureau FinancialData for Commercial andInstitutional Building Construction Contractors.•State Sales Tax Data•33% to 67% split of equipment between new construction and replacement market,respectively.Outputs•Weighted average baseline markups of 1.48 for replacementmarket and 1.77 for newconstruction market (includingsales tax). Averagebaseline markup of1.56 applies tobaseline contractor costs.•Weighted average incrementalmarkups of 1.20 replacementmarket and 1.29 for newconstruction market (includingsales tax). Average Incremental markup of1.22 applied toincremental cost of higher efficiencyequipment.Life-Cycle Cost and Payback Period AnalysisMarkups to Determine Equipment Price27Fuel PricesLCC analysis was based on state average commercial oil and natural gas fuelprices from EIA.Fuel price adjustments by building type were developed using the ratio ofaverage price in 2003 CBECS by building type to the reported commercialaverage price in CBECS.These adjustments were applied to the state-by-state average commercialsector electricity prices calculated from EIA data for 2006 to obtain state-bystate electricity prices by business type.These state-by-state prices by building type were projected for 2012 andbeyond using EIA AEO 2008 national commercial fuel price trends forcommercial oil and natural gas fuels. For years beyond the EIA projection(2030-2042), fuel price trends were projected based on the average escalationin the period from 2020-2030.Life-Cycle Cost and Payback Period Analysis2829Installation Costs•Baseline Installation costs developed from Means Costworks Data fornatural gas hot waterand steam boilers as a functionof equipment capacity. Oil-fired hot water andsteam boilersassumed to be equivalent.•Additional installation costs adders introduced forboilers with higher combustion efficiencylevels to account fornon-corrosive venting andfor condensate removal where necessary.For the replacement marketadders also include labor costs to retrofit venting.•Installation costs adjusted for each state using Means Costworks Data.Discount Rates•Based on weighted averagecost of capital for businesses fromDamodaran Online(website).•Aligned specific business typedata with commercial buildings to get weighted average costof capital by building type.Equipment lifetime assumed to be 30 years.Baseline repair costs developed using MARS Facility Cost Database.•Repair cost assumed to increaseproportionally to firstcost at higher efficiency levels due touse of more costly manufacturing components.Maintenance Costs•Based on RS Means Costworks Database, held constant with efficiency level.Other LCC InputsLife-Cycle Cost and Payback Period AnalysisInstallation Cost(Issue #3)For more-stringent efficiency levels, DOEestimated the cost for stainless steelventing based on an assumed 35-footflue length and applied the entirematerials cost to commercial packaged boilers going into the replacementmarket.In addition, DOE assumed additional costs for control modifications for higherefficiency boilers and for condensate removal for near condensing andcondensing boilers.DOE recognized, however, that installation costs could potentially be higherwith higher efficiency commercial packaged boilers due primarily to ventingconcerns with existing flues and chimney cases in the replacement market.DOE did not have data to calibrate theextent to which additional cost shouldapply.Life-Cycle Cost and Payback Period Analysis30DOE seeks comment and information on how installation costscould potentially increase with higher-efficiency commercialpackaged boilers due primarily to venting concerns.LCC and Payback Period ResultsLCC results are expressed as national average LCC savings as well as interms of the distribution of LCC savings for higher standards compared toadoption of the baseline level (ASHRAE Standard 90.1-2007 efficiencylevels).Using data from the market assessment with regards to current shipments,DOE also developed estimates of the fraction of the market with net LCCincrease, net LCC decrease, and no change in LCC.Payback Period (PBP) results are expressed in terms of national averagePBP as well as in terms of a distribution of PBP for the boiler market.Life-Cycle Cost and Payback Period Analysis3132NOPR Analyses Flow DiagramNational Impact AnalysisEngineeringAnalysisDeterminationof ScopeLife-Cycle Costand PaybackPeriod AnalysisNOPRFinalRuleEffectiveDateNational ImpactAnalysisMarketAssessmentTestProcedures33Purpose of the National Impact AnalysisNational Impact Analysis•To estimate the National Energy Savings (NES) from adoption ofcommercial packagedboiler standards higher thanthe ASHRAE Standard 90.1-2007 efficiency levels.•To estimate the national economic impact on the nation(in terms of national NetPresent Value (NPV) fromadoption of commercial packaged boiler standards higherthan the ASHRAEStandard 90.1-2007 efficiency levels.Analysis Components•Shipment Analysis;•National Energy Savings Calculations; and•National Net PresentValue Calculations.National Impact Analysis34Shipment AnalysisNational Impact AnalysisShipments Analysis – Purpose•To estimate shipments of commercial packaged boilers over time.Methodology•Disaggregated 2007 shipmentdata by equipment class.•Assumed saturation rateof boilers in newcommercial construction isthe same as in stock.•Assumed average boiler life of 30years results in a replacement rate for stock of ~1/30years.•Used 2007 estimate ofcommercial building growth to commercial building stock from AEO2008 to estimateshipments going tonew constructionand replacementmarkets in 2007.•Future shipments goingto new construction based onthe ratio of AEO2008 commercialconstruction growth (sf) in years 2012-2042 to2007 growth (sf).•Future replacements based on replacements required for future stock based on a Weibullbased survival function for commercial packaged boilers (30 yr average life).•Distribution of vintages inexisting stock basedon long term steady-state solution tosurvival function.National Impact Analysis - MethodologyNational Energy Savings (NES) calculatedfor period from 2012 through 2042 (i.e.,30 year energy savings period from earliest possible standard effective date).National NPV calculated from 2012-2085, which coverslife-cycleinstallation andoperational expenses for all equipment shipments between 2012 and 2042.Both NES and NPV analysis take intoaccount a two-year delay for DOE to setstandards more stringent than the efficiency levels in ASHRAE Standard 90.1-2007.•Amended energy conservation standards at the ASHRAE efficiency levels implemented in2012.•Amended energy conservationstandards at more stringent efficiency levels than those inASHRAE Standard 90.1-2007implemented in 2014.•Energy savings benefits for adopting the efficiency levelsin ASHRAE Standard 90.1-2007based on market assessment ofaverage thermal efficiency of the fraction ofboiler shipmentsstock below ASHRAE efficiency level.Used national average customer prices,annual energy use, energy prices,annual repair and maintenanceexpenditures from LCC analysis.Streams of energy use and total costs calculated over analysis time periods withall costs (expenditures) discounted to the present.National Impact Analysis35National Impact Analysis – Methodology ContinuedAnalysis used a distribution of boilersshipments mapped to each of the efficiencylevels considered (i.e., those efficiencylevels include a level below-ASHRAE, theASHRAE level, and up to 4 higher efficiency levels) based on mapping the marketassessment data for available boiler modelsto the analyzed efficiency levels.Amended energy conservation standards assumed to “roll up” less-efficientequipment to standard level, but not to affect projected shipments for boilers athigher efficiency levels.Once an amended standard is in place,old equipment goes out of the inventoryaccording to base case efficiency mix. New equipment is sold and replacedaccording to the new efficiency mix.Fuel prices based on extrapolation ofEIA data from AEO 2008 (2020-2030).National Impact Analysis36Example Distribution of Efficiencies for Small Gas-Fired Hot Water BoilersEquipment ClassEnergy Efficiency LevelBelow 0 (MarketBaseline)~77.5% ETLevel 0(ASHRAE)80% ETLevel 182% ETLevel 284% ETLevel 386% ETLevel 4 88%ETSmall, Gas-Fired, HotWater8.9%14.3%29.3%22.3%7.7%17.5%National Impact Analysis(Issues #4 through #6)National Impact Analysis37DOE seeks comment on the potential for a rebound effect tooccur in the commercial packaged boiler industry. (Issue #4)DOE seeks comment on DOE’s assumption and the potentialsignificance of any overestimation of savings. In particular,DOE requests data that would allow it to better characterizethe likely increases in packagedboiler efficiencies that wouldoccur over the 30-year analysis period absent amendedenergy conservation standards. (Issue #5)DOE seeks comment on the NES-forecasted base-casedistribution of efficiencies and DOE’s prediction of howamended energy conservation standards affect thedistribution of efficiencies inthe standards case. (Issue #6)National Impact Analysis – ResultsCumulative NES savings (2012-2042) provided for establishing amendedenergy conservation standards at efficiency levels more stringent thanthose in ASHRAE Standard 90.1-2007.•NES based on the differencebetween the NES savings foradoption of the ASHRAE levelin 2012 and adoption of higherstandard levels in 2014.Cumulative NPV savings (2012-2085) provided for establishing amendedenergy conservation standards at efficiency levels more stringent thanthose in ASHRAE Standard 90.1-2007 using both 3-percent and 7-percentdiscount rates.•NPV based on the differencebetween the NPV savings foradoption of the ASHRAE levelin 2012 and adoption of higherstandard levels in 2014.National Impact Analysis3839Closing Remarks•At this time, DOE welcomes any additional remarks or questions from interested parties onthe NOPR for certain ASHRAE Equipment.DOE specifically invites comment on:•The proposed test procedure amendmentsfor commercialpackaged boilers;•The proposed energy conservation standard levels (i.e., the efficiency levels specified byASHRAE Standard 90.1-2007)for commercial packaged boilers; and•The proposed energy conservation standard levels (i.e., the efficiency levels specified byASHRAE Standard 90.1-2007)for water-cooled and evaporatively-cooled commercialpackage air conditionersand heat pumps with a cooling capacity at or above 240,000 Btu/hand less than 760,000 Btu/h.Closing Remarks and Comments from InterestedParties on the Proposed Test Procedures and EnergyConservation StandardsProposed Standards and Closing RemarksProposed Standards and Closing RemarksEquipment TypeSubcategorySize Category(Input)Efficiency Level*Effective Date:March 2, 2012Effective Date:March 2, 2022Hot Water Commercial PackagedBoilersGas-fired≥300,000 Btu/h and≤2,500,000 Btu/h80% ET80% ETHot Water Commercial PackagedBoilersGas-fired> 2,500,000 Btu/h82% EC82% ECHot Water Commercial PackagedBoilersOil-fired≥3 00,000 Btu/h and≤2,500,000 Btu/h82% ET82% ETHot Water Commercial PackagedBoilersOil-fired> 2,500,000 Btu/h84% EC84% ECSteam Commercial PackagedBoilersGas-fired – all,except natural draft≥300,000 Btu/h and≤2,500,000 Btu/h79% ET79% ETSteam Commercial PackagedBoilersGas-fired – all,except natural draft> 2,500,000 Btu/h79% ET79% ETSteam Commercial PackagedBoilersGas-fired – naturaldraft≥300,000 Btu/h and≤2,500,000 Btu/h77% ET79% ETSteam Commercial PackagedBoilersGas-fired – naturaldraft> 2,500,000 Btu/h77% ET79% ETSteam Commercial PackagedBoilersOil-fired≥300,000 Btu/h and≤2,500,000 Btu/h81% ET81% ETSteam Commercial PackagedBoilersOil-fired> 2,500,000 Btu/h81% ET81% ETProposed Amended Energy Conservation Standards forCommercial Packaged Boilers*ETis thermal efficiency and ECis combustion efficiency.40Proposed Amended Energy Conservation Standardsfor Water-Cooled and Evaporatively-CooledCommercial Package Air-Conditioning and HeatingEquipment with a cooling capacity at or above 240,000Btu/h and less than 760,000 Btu/hEquipment TypeSize CategoryHeating SectionTypeEfficiency LevelWater-cooled and evaporativelycooled commercial package airconditioners and heat pumps≥240,000 Btu/h and≤760,000 Btu/hElectric Resistance(or none)11.0 EER*Water-cooled and evaporativelycooled commercial packaged airconditioners and heat pumps≥240,000 Btu/h and≤760,000 Btu/hAll other10.8 EER**EER is energy efficiency ratio.41Proposed Standards and Closing Remarks42How to Submit Comments...ClosingPublic Meeting– Oral comments will be capturedin the transcript and becomepart of the public record.Written comments– NOPR comment period open until June 3, 2009.Reference docket #: EERE-2008-BT-STD-0013 and/or RIN #: 1904–AB83.Email: ASHRAE_90.1_rulemaking@ee.doe.govMail: Ms. Brenda EdwardsU.S. Department of EnergyBuilding TechnologiesProgram, Mail stop EE-2JNOPR for ASHRAE Standard 90.1 EquipmentEERE-2008-BT-STD-00131000 Independence Avenue, SW.Washington DC, 20585-0121Courier: Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, 6th FloorWashington, DC 20024