1. Energy Management Opportunities to Reduce Your Impact to Air & Water LEED Accredited Professionals Scott Walters Principal Energy Engineer A&WMA Conference October 7, 2010 Presented by: Presented to:

2. LEED Accredited Professionals Agenda  Why conserve  Barriers to conservation  Low hanging fruit opportunities  Typical justifiable opportunities  Renewable energy role  Industry drivers  Example of innovative solutions  Presenter bio  Past results  Summary  Questions

3. LEED Accredited Professionals Why Conserve  Energy reduction and emissions and natural resources – Emissions, CO 2, SOX, NOX – Fuels – Capital – Operating costs  Water reduction and full benefits – Water – Waste water – Pumping energy – Operating costs

4. LEED Accredited Professionals Why Conserve So our grandchildren will be able to come see us!

5. LEED Accredited Professionals Barriers to Conservation  Facility culture  Past cheap energy  Production mindset for creating revenue  Maintenance budget constraints  Resistance to change  In the box thinking “We have always done it this way”

6. LEED Accredited Professionals Low Hanging Fruit Opportunities  Systems operating when not adding value  Lighting use (CFL’s, time clocks, occupancy sensors)  Temperature set points and set backs not to recommended standards  Programmable thermostats or energy management systems  Replace aerators (faucet spray adapters)  Compressed air pressure reduction  Commission or tune systems  Vending machine controls

7. LEED Accredited Professionals Typical Justifiable Opportunities  Adsil TM coating on condensers  Light fixture retrofit (T12-T8-T5, CFL, LED)  Variable speed drives  Replace old motors with premium efficiency motors  Replace old air conditioning equipment, boilers, or chillers with new premium efficiency equipment  Process part present switches  Modular system sequencing  Replace plumbing fixtures and flush valves  Temperature reset based on outdoor air

8. LEED Accredited Professionals Renewable Energy Role  Incentive driven  Region specific  Types range from – PV – Wind – Solar HW – Solar heat – Hydro including wave – Geothermal – Bio-conversion

9. LEED Accredited Professionals Industry Drivers  Aging infrastructure  Baseline utility use and cost  Fuel costs  Economic climate  Water and waste water costs  Pending carbon legislation

10. LEED Accredited Professionals Example of Innovative Solutions for Condenser Coils ADSIL (www.adsil.com)  Patented cleaning/coating process improves efficiency of system by 12% in inland applications  Chemically bonds with aluminum fins and prevents oxidation, preventing efficiency losses  Does not support mold growth (when sprayed on evaporator coils, fan, and housing)  Improves flow over condenser, evaporator, and improves heat transfer efficiency  MACTEC developed EER grading tool for USEPA MACTEC was chosen by USEPA to study and verify effects in hot/humid climate

11. LEED Accredited Professionals Adsil Two-year, Side-by- Side Test in PR Typical projects cost from $75 to $125 per ton and pay back in three years or less

12. LEED Accredited Professionals Tom applying Adsil to his Toyota

13. LEED Accredited Professionals Past Results  MACTEC has assisted customers in upgrading their facilities to be the most energy-efficient in the world – 52% savings DoD worldwide – 41% savings USPS nationwide – 43% savings State of Florida facilities – 37% Pratt & Whitney in CT  MACTEC has a recipe of over 123 Standard Energy Conservation Projects (ECP’s) to consider as savings opportunities for our clients  MACTEC has identified more than $77 million in energy savings

14. LEED Accredited Professionals  Lowers emissions, water use, and discharge  Low hanging fruit opportunities with little or no capital outlay  Saves valuable resources for future generations  Saves capital costs  Reduces operating costs  Global warming or not, it is the right thing to do! Summary – Why Conserve Energy and Water?

15. LEED Accredited Professionals Contact Information Scott W. Walters PE, CEM MACTEC Engineering and Consulting, Inc. 3200 Town Point Drive NW, Suite 100 Kennesaw, GA, 30144 swwalters@mactec.com Office Phone 770-421-3309 Cell Phone 248.872.8940

16. LEED Accredited Professionals Questions?