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Managing Energy in San Antonio Public Buildings

Leading by Example Philip Gates, CEM, CMVP, EIT Energy Manager. Managing Energy in San Antonio Public Buildings. How to begin?. Energy Management Responsibilities. Public Buildings: By the Numbers. 15,000,000 sqft of building area. Public Buildings: By the Numbers.

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Managing Energy in San Antonio Public Buildings

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  1. Leading by Example Philip Gates, CEM, CMVP, EITEnergy Manager Managing Energy in San Antonio Public Buildings

  2. How to begin?

  3. Energy Management Responsibilities

  4. Public Buildings: By the Numbers 15,000,000 sqft of building area

  5. Public Buildings: By the Numbers Total facility sites: 657 Owned & operated: 346

  6. Public Buildings: By the Numbers Utility accounts: 249 natural gas 2,125 electric 885 water 4 steam/CHW

  7. Public Buildings: By the Numbers 7 year low -4% vs. 2012

  8. Municipal Retrofits: ImpactProjects completed/underway (5 years)

  9. Projects Accomplished & Underway • Retro-Commissioning • Low-$ system tune-ups • 5 buildings, 3M sqft • $316K annual savings • Interior Lighting • Fluor., LED, control • 135sites • $1.5M annual savings • Exterior Lighting • Fluor., LED • 108sites • $155 annual savings • Chillers & DX Units • Eff. equip. w/ control • 40 buildings • $154K annual savings Immed. 1yr 3yr 4yr 5yr 9yr 25yr • PC Energy Mgmnt • Software solution • 6,500 devices • $200K annual savings • Pool Pump Control • Stop over-circulating • 24 Public Pools • $70K annual savings • Window Film • Reduce solar heat gain • 39buildings, 184Ksqft • $289K annual savings • LED Street Lighting • Replace high wattage fixt. • 25,000 fixtures • $, kWh annually

  10. Municipal Facility Retrofit Strategy • Continuously benchmark facility energy use • Prioritize facilities • Heavy usage • High public visibility • Conduct energy assessments • Self-manage retrofits, quick payback first • Measure & verify utility savings (avoided cost) • Revolve energy savings and rebates  Comprehensively retrofit all facilities

  11. Best Practices: Technical & PM • Develop in-house expertise • Train building operators; preventative maintenance • Install control systems your staff can operate • Exercise a robust compliance protocol • Quality control and field verification is essential

  12. Best Practices: Technical & PM • Benchmark all buildings with significant energy use • Measure & Verify utility savings (in-house) • Large portfolio: whole building utility bill analysis, IPMVP Option C • Follow life-cycle forcapital-intensive upgrades • Commission or functionallytest every project • Simple Solutions: Set points,operating hours, equip. right-sizing

  13. Best Practices: Financial • Budget is war: Know thy CFO, budget director, & budget analyst • Tell the full fiscal impact of your work: • Reduced energy costs • Accomplished deferred maintenance projects • Reduced operation and maintenance costs • Review bills monthly & know thy rate categories • Exercise fiscal temperance with savings • Incur no debt & always be cash-positive

  14. General Fund $$

  15. 2 Different Approaches to 1 Project $7.7M $3.6M $6.0M

  16. Recommended Free Resources • ENERGY STAR Portfolio Manager • Noesis Energy’s M&V platform • EVO measurement & verification guidelines • SECO LoanSTAR revolving loan fund • SECO QuickCalcs Spreadsheets • DOE State and Local Energy EfficiencyAction Network (SEE Action) • DOE eQuest energy model

  17. Thank you! Philip Gates, CEM, CMVP, EITEnergy Manager(210) 207-1444philip.gates@sanantonio.gov

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