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Agenda §Energy Audit (Randy & Student Way) §Savings Strategies §Checklist & Presentation Copy.

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Presentation on theme: "Agenda §Energy Audit (Randy & Student Way) §Savings Strategies §Checklist & Presentation Copy."— Presentation transcript:

1 Agenda §Energy Audit (Randy & Student Way) §Savings Strategies §Checklist & Presentation Copy

2 The Basics: Energy Audit Q: What is an Energy Audit? Ans: Simply, an Accounting of energy use Q: Audit Necessary to Obtain Energy Savings? Ans: No, but... Q: Then why do it? Ans: Help identify best opportunities

3 More Basics: What Uses Energy? - Building- People - Building Guts

4 Before a (Physical) Audit Dont guess about opportunities & act Do this instead: l Get a (better) sense for whats important l Sense what you can control l Focus approach/efforts accordingly How?

5 Energy Audit Approach Step 1: Obtain Historical Energy Consumption Step 2: Get Idea of how Total Energy breaks into Use Categories Step 3: Verify (Assumptions) in Step 2 with (More) Research Step 4: Visit Site: Verify Research & Look for Opportunities

6 Step One: Energy History

7 Step Two: Energy Breakdown

8 Natural Gas Subgroups at Dorm

9 Electricity Subgroups at Dorm

10 Bottom Line: Limitations Natural Gas Electrical

11 Step Three: (In-Depth) Research Research Assumptions on Energy Use Categories: l Building plans/blueprints/specifications l Talk to Building Experts

12 Step Four: Verify Building Walkthrough l Look at the Building/Equipment l Talk to the Occupants

13 What are We Looking For? §Verify what learned from Plans/Experts l Equipment* Size l Equipment Efficiency l Equipment Location l Equipment Condition §Why do this? l The Plans/Experts arent always right * Equipment = Furnaces, Air Conditioners, Lighting, Kitchen Equipment, Fans, Etc., Etc.

14 Building Walkthrough

15 Building Walkthrough What am I looking for?

16 Nameplate Data

17 Summarize Data Example: Natural Gas

18 Efficiency Improvement?

19 Problem §Students dont have a budget to replace equipment

20 Auditing for Other Opportunities §Waste §Excess Consumption §Comfort

21 Best Opportunities? Natural Gas Electrical

22 Best Electric Opportunities? Natural GasElectrical

23 Plug Load Opportunities?

24 Audit Sampling

25 Random Sample §Room X: 3500 watts of appliances §Room Y: 500 watts of appliances §Room Z: 350 watts of appliances

26 Which Room Uses More Energy? §Room X: 3500 watts of appliances §Room Y: 500 watts of appliances §Room Z: 350 watts of appliances §Room X: 3500w? * ?? hour/day = ?? kWh/day §Room Y: 500w? * ?? hours/day = ?? kWh/day §Room Z: 350w? * ?? hours/day = ?? kWh/day ?? = People Behavior/Lifestyle

27 Random Sample Room X Room Y Room Z

28 Which Room Uses More Energy? §Room X: 3500 watts of appliances §Room Y: 500 watts of appliances §Room Z: 350 watts of appliances §Room X: 3500w * 1 hour/day = 3.5 kWh/day §Room Y: 500w * 4 hours/day = 2.0 kWh/day §Room Z: 350w * 24 hours/day = 8.4 kWh/day

29 Blend Samples §Room X: 3500w * 1 hour/day = 3.5 kWh/day §Room Y: 500w * 4 hours/day = 2.0 kWh/day §Room Z: 350w * 24 hours/day = 8.4 kWh/day ( )/ 3 Samples = 4.63kWh/day Use/Room 4.63 * 100Rooms = 463 kWh/day for Building 463 kWh * Days Occupied = Annual Building Use

30 Reconcile 463kWh * Days Occupied = Annual Building Use

31 Voila! Energy Audit 1390kWh * Days Occupied = Annual Building Use

32 After the Audit §Audit Serves as a Basis for Savings Strategy for your Eco-Olympics §Now Work on Strategy to Implement Savings… l Creativity l Effort

33 Sample Energy Calculation Room X Student X Use Desired Change ChangeSavings Probability 3500 watts * (1 hr/day) * 50% reduction * 20% = 350 watts/day

34 Sample Energy Calculation Room X Student X Use Desired Change ChangeSavings Probability 3500 watts * (1 hr/day) * 50% reduction * 20% = 350 watts/day 30% reduction * 50% = 525 watts/day

35 Conclusion/Questions §Energy Research Aids Savings Efforts §Randy Versus Student Way are Different but Share the Same Desired Goal §Savings Strategies Can Influence Savings


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