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Cogeneration at UC July 18, 2013

Cogeneration at UC July 18, 2013. Welcome. Transformation of the Power Plant. CENTRAL UTILITY PLANT 2007. POWER PLANT CENTER OF CAMPUS. Power Plant Site transformed Campus Recreation Center. CAMPUS RECREATION CENTER. POWER PLANT SITE OF REC CENTER. Investing for the future.

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Cogeneration at UC July 18, 2013

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  1. Cogeneration at UC July 18, 2013

  2. Welcome

  3. Transformation of the Power Plant CENTRAL UTILITY PLANT 2007 POWER PLANT CENTER OF CAMPUS

  4. Power Plant Site transformed Campus Recreation Center CAMPUS RECREATION CENTER POWER PLANT SITE OF REC CENTER

  5. Investing for the future • $84,000,000 Construction of Central Utility Plant 2004 • $6,000,000 Solar Turbine Maintenance contract 2004 - 2011 • $6,000,000 Construction of Thermal Storage System 2011 • $7,000,000 Construction of New Substation • Total Investment of Over $100,000,000

  6. Central Utility Plant

  7. Veterans Hospital University Hospital Hoxworth Blood Bank Hospitals Served by UC Utilities Childrens Hospital Medical Center Shriners Hospital for Children Holmes Hospital

  8. University of Cincinnati Consolidated Utilities • UC and 6 Hospitals • 100 buildings • 12 million square feet • Two Utility Production Plants • Piping/Tunnel System • 100% distribution

  9. Consolidated Utilities Operations Capacity • Electric production 47MW • Steam Production • 610,000 pounds-per-hour capacity-coal, gas, oil, interruptible gas • Chilled Water Production • 34,000 tons capacity • natural gas and electric chillers • Thermal Energy Storage • 2.8 million gallons of chilled water East Campus • 4.0 million gallons of chilled water West Campus

  10. Utilities Distribution System • Steam Pipes - 35,509 Linear Feet • Chilled Water Pipes - 32,889 Linear Feet • Tunnels - 13,947 Linear Feet

  11. Central Utility Plant

  12. State of the Art Electric Production Equipment • 2 Solar Titan Combustion Turbines • 12.47 kV • 13,400 kVA

  13. Heat Recovery From Cogen Increases Efficiency • 2 ERI HRSGs • 600 PSIG • 40,000 #/hr • 120,000 #/hr with burners • Overall efficiency is double the efficiency of a large utility plant

  14. Additional Electric Production Equipment • Use for campus heat in winter • Use for more electricity in summer • 20 MW steam turbine generator • 12.47 kV

  15. Cogen Benefits Cogen Benefits • Increased Reliability • “Free” Steam • $2,590,000 per year of savings • Lower Emissions • No transmission and distribution losses Certified Emission Monitoring System

  16. Electric Monitoring

  17. Peak Load Is Main Priority • Duke Energy Ohio regulated • DERS non regulated supply • Both depend on PJM 5 CP • 5 CP is determined by regional transmission operator • 5 CP stands for top 5 highest coincident peaks in PJM total territory

  18. PJM Service Territory Weather in DC, Philadelphia, New Jersey, or Chicago Could affect total Peak load

  19. PJM Historical Coincident Peak Hours Look at the trend Peak is almost always hour ending 17:00 Only 4 of 25 hours were not hour ending 5PM and they were close

  20. Last Year’s 5 Peak days • These results are excellent and avoided millions of dollars of • additional demand charges on our electric bill • Electric Bill would be additional $380,000 per month higher

  21. CTG Performance

  22. Simple Fuel Operation • We use 600 cfm more gas to produce additional 5,000 kW • This is equal to 36 MCF per hour • $4 per MCF = $144/5,000kWh = $0.0288/kWh • $5 per MCF = $180/5,000kWh = $0.036/kWh • $6 per MCF = $180/5,000kWh = $0.0432/kWh • $7 per MCF = $180/5,000kWh = $0.0504/kWh • $10 per MCF = $180/5,000kWh = $0.072/kWh

  23. O& M Costs • 4 Additional Operators • Full Service Contract with Solar • $1,500,000 per year fixed cost • $0.01/kWh

  24. Debt Costs • Tax Exempt Bonds • Low Interest rates • $40,000,0000 • $3,600,000/ yr • $0.02/kWh • Could be less if you needed more capacity

  25. Gas is still low but climbing

  26. Efficiency results

  27. Energy use per student down 30% over last 9 years

  28. City water usage down 43% over last 9 years

  29. GF Adjusted Utility Budget Compared to PUCO Historical Commercial & Industrial Rates for Cincinnati

  30. Award Winning Operations

  31. Energy Conservation • Saves money • Reduces carbon footprint • Over $2,500,000 of rebates • Promotes sustainability • Duke Power Partner Award

  32. Awards and Honors • 2012 International Thinking Buildings Award • 2011 EPA Combined Heat and Power Award • 2010 EPA Combined Heat and Power Award • 2009 EPA Combined Heat and Power Award • 2005 Energy Project of the Year, Association of Energy Engineers (AEE) • 2005 System of the Year, International District Energy Association (IDEA) • 2005 CHP Certificate of Recognition, U.S. EPA • 2005 Governor’s Award for Excellence in Energy, State of Ohio • 2003 Ohio Governor’s Award for Excellence, highest award in the Ohio Award for Excellence competition • 2001 Corporate Energy Management of the Year, Association of Energy Engineers (AEE) • 2001 Award for Excellence in Facilities Management, Association of Higher Education Officers (APPA) • 2000 Governor’s Award for Excellence in Energy Efficiency, State of Ohio • 2000 Facilities Management Excellence Award, Association for Facilities Engineers • 1999 Facility Management Achievement Award, International Facilities Management Association (IFMA) • 1997 Greenlights Partner, U.S. Environmental Protection Agency (EPA)

  33. Additional Benefits • Improved Reliability • Voltage Sags reduced • Reduced carbon footprint • Less transmission and distribution losses • Good Publicity

  34. Additional Concerns • Increased Fuel Volatility • Increased Operational Complexity • Additional regulatory issues • PJM Interconnect may be needed • Increased Staff may be needed • Additional environmental permitting, monitoring, and reporting

  35. Summary • Great technology, but it is not for everyone • Need a medium - large summer steam load and year round need for power • Adds complexity to operations • Capital and regulatory intensive • Works great with low gas prices

  36. Other Sources of Information • http://www.midwestcleanenergy.org/ • DOE’s Federal Energy Management Program (FEMP) has issued a Notice of Intent (NOI) to provide grants for capital projects to Federal Agencies through a Funding Opportunity Announcement (FOA) entitled, "Assisting Federal Facilities with Energy Conservation Technologies (AFFECT)." CHP projects will be eligible for direct funding.

  37. Questions?

  38. Summary • For more information contact • Joe Harrell (513)-558-4635 • harreljh@uc.edu

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