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

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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

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

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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?

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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

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Step One: Energy History

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Step Two: Energy Breakdown

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Natural Gas Subgroups at Dorm

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Electricity Subgroups at Dorm

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Bottom Line: Limitations Natural Gas Electrical

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

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

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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.

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Building Walkthrough

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Building Walkthrough What am I looking for?

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Nameplate Data

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Summarize Data Example: Natural Gas

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Efficiency Improvement?

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Problem §Students dont have a budget to replace equipment

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Auditing for Other Opportunities §Waste §Excess Consumption §Comfort

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Best Opportunities? Natural Gas Electrical

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Best Electric Opportunities? Natural GasElectrical

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Plug Load Opportunities?

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Audit Sampling

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

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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

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Random Sample Room X Room Y Room Z

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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

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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

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Reconcile 463kWh * Days Occupied = Annual Building Use

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

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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

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

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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

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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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