1. Commercial Energy Assessments City of Ames Emily Rice The Energy Group

2. Overview Process for the Energy Management Program Energy Assessment Process Basic Energy Management Improvements Common Projects Identified Questions EmilyRice@theenergygroup.biz

3. Step 0: Motivate Energy Management Success directly depends on participation of occupants Stimulate employee interest and support through awareness “We reduced electric consumption by 13% this quarter and saved $210.” EmilyRice@theenergygroup.biz

4. Energy Management Program (EMP) Designate Responsibility Gather Usage and Cost Data Analyze Data & Perform Audits Evaluate Opportunities ImplementMonitor Results Evaluate Success and Establish New Goals EmilyRice@theenergygroup.biz

5. Energy Assessments Detailed Analysis of Capital- Intensive Modifications Energy Survey & AnalysisWalk-Through Assessment EmilyRice@theenergygroup.biz

6. Process Prepared By ©The Energy Group Co., Inc6 Forms and initial data collectedWalk-through conducted on-site TEG analyzes findings and usage & identifies cost-effective projects Results are communicated Building owner implements and cost savings are realized

7. Initial Data and TEG Forms Behavior and Operations Interview Building Survey Utility Release Form Prepared By ©The Energy Group Co., Inc7

8. Implementation Owner chooses projects to be implemented TEG can provide input for funding options Project encourages use of local contractors and suppliers Prepared By ©The Energy Group Co., Inc8

9. Current Usage Summary Prepared By ©The Energy Group Co., Inc9

10. Summary of Results Prepared By ©The Energy Group Co., Inc10

11. Basic Energy Management Tighten Current Systems Optimize Systems Operation Purchase More Efficient Replacement Systems EmilyRice@theenergygroup.biz

12. Tighten Current Systems Reduce Air Leakage Reduce Water Leakage Turn Off Lighting; Add Controls Use Temperature Setback Cool With Outside Air Seal Unused Vents/Ducts to the Outside Educate Tenants The most effective method to reduce energy usage, both environmentally and economically, is to conserve energy. Turning off systems when not in use or tightening up aged systems can achieve great results for little to no cost. EmilyRice@theenergygroup.biz

13. Optimize Systems Operation Training Operator Personnel Tuning Combustion Equipment Adjusting Gas Boilers Cleaning/Replacing Filters Cleaning Fan Blades & Ductwork Using Water Treatment A combination of operator training, preventative maintenance, and system adjustments will help tune energy systems to optimal performance; an ongoing process that is the third most effective method for reducing energy costs. EmilyRice@theenergygroup.biz

14. Purchase Efficient Replacements Lighting Systems & Lamps Heating & Cooling Equipment Energy Distribution Systems Motors Thermal Envelope Components Controls & Energy Management Systems This method is more expensive and less cost- effective than the others. It is crucial to calculate the costs to operate and install and weight them against the savings to determine feasibility. EmilyRice@theenergygroup.biz

15. Evaluating Energy Management Improvements Pacific Northwest Laboratory (PNL) discusses 118 improvements Each EMI can be quantitatively evaluated System Interaction and Payback are important considerations EmilyRice@theenergygroup.biz

16. Energy Management Improvements Lighting Exit Signs Ceiling/Roof Insulation HVAC Systems Occupancy Sensors Pool Cover Vending Machine Controller Thermostat Setback Weather-stripping Window/Door Replacement Thermal Window Shades Pipe Insulation Washing Machines Not every improvement was cost-effective or applicable for each building. Some owners expressed an interests in particular projects that are included regardless of feasibility. Rebates should be confirmed with the City of Ames prior to implementation. Prepared By ©The Energy Group Co., Inc16

17. Situation: City Hall with twenty computers currently operating fifty hours weekly and in sleep 118 hours over night and during the weekends. Example: Plug Load Result: Saves $244/year in operating costs. Solution: Timers to disconnect equipment for 100 hours weekly. EmilyRice@theenergygroup.biz

18. Example: Lighting As seen: 8 4-lamp T12 Lamps Magnetic Ballasts Operating 50 hrs/wk Costs $270 per year to light! Retrofitting ballasts and lamps could save $85 per year in one room. EmilyRice@theenergygroup.biz

19. Vending machines contain compressors that run constantly. Between the lighting and compressor annual operating costs are: Example: Vending Machines Controllers can save up to 40% on vending machines! Beverage Machine - $280 Snack Machine - $50 EmilyRice@theenergygroup.biz

20. Sample Energy Assessment EmilyRice@theenergygroup.biz Facility is 19, 284 sq ft Facility operates 50 hrs/wk; 24/day in Police Station Goal: Analyze current usage and identify projects as part of whole-city study

21. Energy Use Benchmark: 129,305 Btu per ft 2 kWh = per year EmilyRice@theenergygroup.biz

22. Steps Taken EmilyRice@theenergygroup.biz Initiated City-Wide Analysis Project Conducted Energy Audits on 50 Commercial Buildings, Including City Hall Reviewed Results & Implementing (Priority-Based)Will Continue to Evaluate Progress

23. Positives EmilyRice@theenergygroup.biz

24. Projects EmilyRice@theenergygroup.biz Annual Cost Avoidance Implementation Cost Simple Payback Fluorescent Upgrades$2,123$20,8627.5 Compact Fluorescent$175$2400.5 Occupancy Sensors$18$60022.7 Radiant Heat$958$5,5005.7 Weather-stripping$56$30 0.2 Exit Sign Retrofit$59$80 1.2 Total$3,389 $27,312N/A

25. Explore Financing Options Internal Funds Debt Financing Lease or Lease-Purchase Agreement Utility (or other) Incentives Private Programs Public Programs EmilyRice@theenergygroup.biz

26. Explore Financing Options cont’d Office of Energy Independence – BE$T Program – Grants Energy Efficiency & Renewable Energy – www.eere.energy.gov www.eere.energy.gov – Compiles Federal, State, & Local Resources EmilyRice@theenergygroup.biz

27. Emily Rice 2704 Easton Blvd Des Moines, IA www.theenergygroup.biz Cell: 515-249-2665 Office: 515-564-1045x212 Fax: 515-564-1042 EmilyRice@theenergygroup.biz www.theenergygroup.biz EmilyRice@theenergygroup.biz