Benchmarking and Goal Setting for Energy, Water and Solid Waste Management Business Environmental Program Series September 11, 2007

Transcription

1 Benchmarking and Goal Setting for Energy, Water and Solid Waste Management 2007 Business Environmental Program Series September 11, 2007

2 Agenda for today Welcome and Introduction John Phelan, Fort Collins Utilities Case Study Poudre School District Benchmarking Stu Reeve, Poudre School District Break Water Use Benchmarks Seth Jansen, The Brendle Group Tracking and Measuring Solid Waste John Armstrong, City of Fort Collins Natural Resources Q & A Panel

3 2007 Business Environmental Program Series Benchmarking and Goal Setting for Energy, Water and Solid Waste Management (Sep. 11) Clean Energy Cluster Update (Sep. 25) Energy Efficiency Project Evaluations (Oct. 2) Today s Building Enclosures Science, Materials and Details (Oct. 16) Cleaner Diesel Strategies for the Future (Oct. 23) Zero-Waste Events and Meetings (Nov. 6) Green Industry Best Management Practices (Dec. 4)

4 City of Fort Collins Programs Integrated Design Assistance Program Design grants and performance incentives for new construction and major retrofits LIGHTENUP Program Rebates for lighting retrofits Electric Efficiency Program Incentives for demand and energy saving retrofit measures Cooling Rebate Program Incentives for high efficiency packaged cooling equipment Technical Assistance Energy assessments and custom consulting Climate Wise Voluntary greenhouse gas reductions Call us! The Energy We Live By TM

5 Buildings in Fort Collins Commercial customers approx High Performance Dozen or so LEED projects (certified and/or registered) Two dozen or so ENERGY STAR buildings (schools) Seventy or so Climate Wise partners What about everything else?

6 The power of language bench mark (noun) a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point a standard by which something is measured a standard of excellence or achievement against which similar things must be measured or judged Synonyms: reference, criterion, gauge, goal, measure, standard, touchstone, yardstick

7 The power of language goal (noun) The purpose toward which an endeavor is directed; an objective objective (noun) Something worked toward or striven for; a goal intention (noun) A course of action that one intends to follow. An aim that guides action; an objective Synonyms: target, purpose, object, objective, intent, intention, goal

8 The power of language Code compliant building Minimally compliant building

9 Value Of Benchmarking Establishing performance targets New construction Existing building operations Identify inefficient buildings Identify high performers Estimate energy cost savings potential Track progress or degradation Marketing

10 Energy Benchmarking Metrics Energy Use Intensity (EUI) Annual building energy use / gross square feet US metric >> kbtu per square foot per year International metric >> kwh per square meter per year Energy cost intensity Building total energy cost / gross square feet Numerical Rating/Ranking (0-100, percent) comparing building to population of similar buildings ENERGY STAR Portfolio Manager

11 Ranking Benchmark

12 Metrics (continued) Site energy Simplicity, local comparison Source energy Captures fuel switching strategies Fuel source conversions (local, regional, national) Greenhouse gas emissions inventory Important factors to account for Office - # people, # computers, hours Schools - # students, AC (yes/no) Etc Is there a population of buildings for comparison?

13 Some benchmarks/targets compared 1. This new building should use 40% less energy than a (minimally) code compliant building 2. This new building should achieve a LEED Gold rating 3. This new building should achieve a Designed with ENERGY STAR designation 4. This new building should achieve the Architecture 2030 Challenge targets 5. This new building should use no more site energy than 33 kbtu per square foot per year (104 kilowatt-hours per square meter per year)

14 Some benchmarks/targets compared 1. This new building should use 40% less energy than a (minimally) code compliant building Fort Collins Nonresidential Energy Code, an amended version of ASHRAE/IES envelope requirements 1999 lighting requirements Mostly 1989 HVAC requirements Does not reflect current construction practices or market expectations What does the code compliant building look like? What systems does it have? Comparing source or site energy? etc etc etc This is nothing more than an academic exercise

15 Some benchmarks/targets compared 2. This new building should achieve a LEED Gold rating LEED NC EA Credit 1: Optimize Energy Performance 1 10 Points (2 Mandatory) OPTION 1 WHOLE BUILDING ENERGY SIMULATION Demonstrate a percentage improvement in the proposed building performance rating compared to the baseline building performance rating per ASHRAE/IESNA Standard (without amendments) by a whole building project simulation using the Building Performance Rating Method in Appendix G of the Standard. The minimum energy cost savings percentage for each point threshold is as follows: Is anybody totally sure what this means?

16 Some benchmarks/targets compared 3. This new building should achieve a Designed with ENERGY STAR designation Target Finder tool (for certain building types) Designed to achieve a performance rating greater than 75 A target rating selected by the user using a scale (expressed as a percentage). A 75 target rating would indicate that the energy design intent for the project is in the top quartile (i.e. top 25%). Target Finder also uses the scale to establish a rating for your design's energy performance compared to the US commercial building population of similar buildings. The objective is still somewhat vague, but the tool provides site and source EUI s.

17 Some benchmarks/targets compared 4. This new building should achieve the Architecture 2030 Challenge targets Target Finder tool (for certain building types) or Architecture 2030 derived site EUI targets All new buildings, developments and major renovations shall be designed to meet a fossil fuel, GHG-emitting, energy consumption performance standard of 50% of the regional (or country) average for that building type. The energy reduction is a measure of how much better your facility performs as compared to an average building (target rating of 50). It is calculated by comparing the design or target energy consumption against the consumption for that facility with a rating of 50. The objective is a higher standard, but who can tell?

18 Some benchmarks/targets compared 5. This new building should use no more site energy than 33 kbtu per square foot per year (104 kilowatt-hours per square meter per year) Model new building design for comparison with goal Track actual building performance to verify Any questions?

19 ENERGY STAR Portfolio Manager Track multiple energy and water meters for each facility Customize meter names and key information Benchmark your facilities relative to past performance View percent improvement in weather-normalized source energy Monitor energy and water costs Share your building data with others inside or outside of your organization Data import tools

20 ENERGY STAR Portfolio Manager Building types Offices (general offices, financial centers, bank branches, and courthouses) K-12 Schools Hospitals (acute care and children's) Hotels and Motels Medical Offices Supermarkets Residence Halls/Dormitories Warehouses (refrigerated and non-refrigerated) Source and site energy benchmarks Weather normalized Statement of Energy Performance

21 ENERGY STAR Portfolio Manager

22 ENERGY STAR Target finder Target Finder helps: set realistic energy performance goals and receive a rating for the intended energy use in design projects Choose a target for achieving: Designed to Earn the ENERGY STAR with a rating of 75 higher from the Target Rating section (energy performance rating using a scale) The 2030 Challenge and AIA goal with an energy reduction target for 50 percent less than an average building

23 ENERGY STAR Target finder How to Use Target Finder I. Set an energy target Enter a zip code for your design project Choose a building type (e.g., Office, K 12 School, Supermarket) and enter facility characteristics Select The Target for Target Rating to achieve ENERGY STAR or Energy Reduction Target to meet AIA/2030 Challenge goal Select View Results II. Rate the estimated design energy Enter the project s estimated energy use for electricity and other fuel source(s) Enter energy costs Select View Results

24 ENERGY STAR Target finder

25 ENERGY STAR Target finder

26 Architecture 2030 Challenge

27 and so Rankings are valuable for non-technical decision makers EUI s (numerical) are valuable for technical decision makers Percent savings goals inevitably leads to minimalist thinking (and much more work) The tools are easy to use This building uses only 33 kbtu per square foot per year

28 A great example

29 Energy benchmarking Questions? Comments?