Integrated Energy Master Plan Summary

1. Integrated Energy Master PlanSummary June 21, 2012 Eric Utterson, PE, LEED AP Jerry Williams, PE, LEED AP 8760 Engineering, LLC St. Louis, MO

2. Overview • Campus Master Plan (3/2010) • Improve campus grounds, facilities, infrastructure and plan for growth • Work toward becoming a carbon-neutral campus • Integrated Energy Master Plan (2/2012) • Identify a transformative plan to reduce energy and carbon emissions while maintaining sound economic justifications for these actions

3. Findings • FY 2010/2011 Energy Costs

4. Findings • Results of Energy Audit for 104 Major Campus Buildings

5. Benchmarking of Buildings by Energy Use

6. Central Heating Plant • Boilers in place to fire coal, natural gas or fuel oil • During FY 2010/11, plant fired 92% coal, 8% natural gas • Coal boilers 42 to 53 years old • Replacement of coal boilers not economically viable • EPA emissions regulations becoming ever more stringent • FY 2011/12, conversion to mostly natural gas

7. Central Cooling Plant • High efficiency electric chillers in linked, distributed plants • Plants currently operated very efficiently • Capacity increases necessary to meet existing loads and to support the master plan growth • Aging building chillers around campus must be planned for replacement

8. Utility Distribution • Electric and chilled water distribution systems in good condition • Steam and condensate distribution systems failing • 4.2 miles of buried piping require replacement • Distribution losses represent $1.8M in annual energy consumption

9. Conclusions and Recommendations • Implement Energy Conservation Projects • Make focused effort in mechanical system tuning • Continuing aggressive implemention of energy conservation facility improvements • Install natural gas turbine cogeneration plant with heat recovery boiler

10. Conclusions and Recommendations 2. Repair Campus Utility Systems • Replace critical segments of the aging steam distribution piping system • Reduce steam distribution pressure to 40 psig and set up building steam trap reviews • Continue to provide building energy meters – benchmark use as a diagnostic tool

11. Conclusions and Recommendations 3. Prepare to Stop Burning Coal • Dependence on coal firing will be diminished within the next ten years • Existing boilers > 40 years old • New coal boilers are cost prohibitive

12. Conclusions and Recommendations 3. Prepare to Stop Burning Coal (Continued) • Until coal is retired • Retain all current available fuels for operating cost stability • Analyze natural gas and coal costs monthly to minimize operating cost • Heat with alternative technologies

13. Conclusions and Recommendations • Prepare to Stop Burning Coal (Continued) • Move toward distributed hot water heating plants • Replace aging boiler # 5 with a new high efficiency unit for more robust natural gas fired plant operations

14. Conclusions and Recommendations 4. Design More Efficiently • Continue to require LEED certification for all new buildings with enhanced annual energy tracking • Supplement university design standards with energy system requirements for new buildings • Continue to investigate renewable energy sources as the technology advances reduce costs

15. Conclusions and Recommendations 5. Energy Conservation through Involvement of Campus Community • Encourage a culture of energy conservation behavior at every level of the campus community • Continue to promote campus programs that reinforce these behaviors

16. Recommended Integrated Energy Master Plan Initiatives * Based upon FY 2011 Energy Costs and Construction Costs