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1、Introduction to Commercial Building Energy Efficiency through EPAs ENERGY STAR program,Week 4: Benchmarking Buildings and Prioritizing Improvements within a Portfolio of Buildings,Outline,Class Objectives ENERGY STAR for Commercial Buildings Benchmarking Buildings and Prioritizing Improvements withi
2、n a Portfolio of Buildings ENERGY STAR Energy Management Tools Benchmarking with Portfolio Manager Live Demonstration Benchmarking a Portfolio of Buildings Building Upgrade Manual Getting Started on Your Commercial Project Building,Class Objectives,After todays lecture, you will be able to: Benchmar
3、k the energy use of a building using monthly energy bills and other required building data Analyze and explain the benchmarking results to others in the class (and possibly the building owner/manager) using data from Portfolio Manager Generate a Statement of Energy Performance and a Data Checklist f
4、rom Portfolio Manager for a building and review the data to confirm its accuracy Explain how to identify priority projects with a portfolio of buildings,ENERGY STAR Energy Management Tools,ENERGY STAR Resources,http:/www.energystar.gov/buildings,Guidelines for Energy Management STEP 1: Commit to Con
5、tinuous Improvement STEP 2: Assess Performance STEP 3: Set Goals STEP 4: Create Action Plan STEP 5: Implement Action Plan STEP 6: Evaluate Progress STEP 7: Recognize Achievements,ENERGY STAR Resources,Building Upgrade Manual Plan and implement profitable energy saving building upgrades utilizing fiv
6、e stages: Retrocommissioning Lighting upgrade Load reductions Air distribution systems upgrade HVAC upgrade Cash Flow Opportunity (CFO) Calculator Helps answer three critical questions about efficiency projects: How much new energy efficiency equipment can be purchased from the anticipated savings?
7、Should this equipment purchase be financed now or is it better to wait and use cash from a future budget? Is money being lost by waiting for a lower interest rate?,Benchmarking with Portfolio Manager,Benchmarking,Benchmarking through ENERGY STAR allows you to: Compare one building against a national
8、 sample of similar buildings Compare all of your buildings of a similar type to each other Set priorities for use of limited staff time and/or investment capital,Portfolio Manager Benchmark the energy use of all buildings receive an energy use intensity (EUI). Many buildings, including office buildi
9、ngs can receive energy performance ratings on a 1-100 scale. Track changes in energy and water use over time in single buildings, groups of buildings, or entire portfolios. Track and report cost savings and CO2 emissions. Apply for the ENERGY STAR. www.energystar.gov/benchmark,Benchmarking,Medical O
10、ffices,Office Buildings,Hospitals,Warehouses,Dormitories,Supermarkets,Courthouses,K-12 Schools,Bank/Financial Institutions,Hotels,Wastewater Treatment Plants,Retail Stores,ENERGY STAR Score Eligible Building Types,Houses of Worship,Data Centers,Examples of Non-Ratable Space Types,Police Stations Fir
11、e Stations Assisted Living Facilities Convention Centers Laboratories Libraries Malls Movie Theatres Restaurants Stadiums and Arenas,Portfolio Manager Four Simple Steps,1. Create/edit a Portfolio Manager account 2. Add/edit a property 3. Add/edit a space 4. Add/edit energy meters,Required Informatio
12、n for Benchmarking in Portfolio Manager,Building Identifiers Name, street address, zip code for weather normalization Space Type Data (office example) Square footage, hours of operation, Number of workers on main shift , # of PCs, Percent of gross floor area that is air conditioned, heated Energy Us
13、e Bldg specific invoice information from all purchased energy. Begin with at least 11 consecutive months for each source and update with monthly usage data.,Energy Use: How to Read a Utility Bill,Assess Performance for Smart Energy Management,Verify gains from upgrade efforts Require specific rating
14、 gains from service providers in select building types such as office or warehouse,Identify Best Opportunities for Energy Efficiency Improvements,Identify under-performing buildings to target for energy efficiency improvements Establish baselines to set goals and measure progress,Track Progress Over
15、 Time,Set a custom baseline and monitor energy efficiency improvements before, during, and after an upgrade project View percent improvement in weather-normalized energy use intensity Track reductions in greenhouse gas emissions Monitor energy and water costs,Document Savings Results,Provide transpa
16、rency and accountability to help demonstrate strategic use of capital improvement funding Quickly and accurately demonstrate savings for an individual building or entire portfolio: Energy use GHG emissions Water use Energy costs Download performance metrics from Portfolio Manager into Excel Generate a Statement of Energy Performance (SEP) for each building, summarizing important performance indicators, including energy intensity and CO2 emissions Generate an Energy Performance Report sho
