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Agenda

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

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Agenda

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  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 Don’t guess about opportunities & act Do this instead: • Get a (better) sense for what’s important • Sense what you can control • 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 Electrical Natural Gas

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

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

  13. What are We Looking For? • Verify what learned from Plans/Experts • Equipment* Size • Equipment Efficiency • Equipment Location • Equipment Condition • Why do this? • The Plans/Experts aren’t always right *Equipment = Furnaces, Air Conditioners, Lighting, Kitchen Equipment, Fans, Etc., Etc.

  14. Building Walkthrough

  15. Building WalkthroughWhat am I looking for?

  16. Nameplate Data

  17. Summarize DataExample: Natural Gas

  18. Efficiency Improvement?

  19. Problem • Students don’t have a budget to replace equipment

  20. Auditing for Other Opportunities • Waste • Excess Consumption • Comfort

  21. Best Opportunities? Electrical Natural Gas

  22. Best Electric Opportunities? Natural Gas Electrical

  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 (3.5+2.0+8.4)/ 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… • Creativity • Effort

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

  34. Sample Energy Calculation Room X Student X UseDesired Change Change Savings 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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