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UTPA Energy Conservation Initiatives

UTPA Energy Conservation Initiatives. Oscar Villarreal Director, Facilities Management David Ortega Assistant Director, Energy Manager . Outline. Background Energy infrastructure tools Utility costs Energy conservation c ategories Maintenance & operations

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UTPA Energy Conservation Initiatives

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  1. UTPA Energy Conservation Initiatives Oscar VillarrealDirector, Facilities Management David OrtegaAssistant Director, Energy Manager

  2. Outline • Background • Energy infrastructure tools • Utility costs • Energy conservation categories • Maintenance & operations • Energy purchasing • Facility renovations • New construction • FY13 and beyond

  3. Background • Academic/Research Institution • 19,600 Students • ~2,700 Faculty and staff • 57 Buildings • 2.4 Million ft2 • 230 Acres • Infrastructure: District Cooling • Five chillers (8000 ton capacity) • Thermal tank (1.4 million gal.) • System volume (1.6 million gal.)

  4. Infrastructure: Administrative Tools • iShop Procurement • Enables procurement of material and labor for energy conservation and efficiency. • TMA Work Order System • Cradle to grave tracking of facility assignments • e.g. Energy losses due to overcooling, overheating, & leaks

  5. Infrastructure: Technical Tools • Building Automation System • Remote monitoring, controlling, & scheduling of HVAC UTPA-wide. • Saves energy & person-hours, including overtime • Utility Metering • To measure and track consumption, cost, etc. • Provided by utility and conducted in-house DO

  6. UTPA Utility Costs ($) FY 2012 Total = $4.94 Million

  7. UTPA Electricity Expenses (%)

  8. Maintenance Practices

  9. UTPA Lighting Upgrades • 19 buildings; 4 phases from Fy’10-13 • Retrofits included more energy efficient fluorescent tubes and electronic ballasts • Results • Increased illumination • Higher energy efficiency • Utility rebates ($158k) • $500k cost avoidance to date • In FY’13, expect to avoid 2 million kWh ($150k) • 2 to 4 year payback* Energy Efficient Fluorescent Light Fixture

  10. Operating Practices

  11. Purchasing Practices • Utility Contracts • Electricity & natural gas • Seek reliable supply of energy • Competitive procurement • Include energy conservation and improved energy efficiency as procurement options • HVAC equipment • Dual technology motion sensors, dimmers, programmable lighting controls • electric and hybrid vehicles Energy Efficient Boiler OV

  12. Facility Renovations

  13. New Construction

  14. FY13 and Beyond • Continuous improvement • Continuous commissioning • Why? Building Automation System Console

  15. Continuous Commissioning • Continuous Commissioning is an ongoing process to: • Resolve operating problems • Improve comfort • Optimize energy use, and • Identify retrofits • Optimizes performance for the way the building is currently being used.

  16. Some items we hope to address • Sensor calibration • Overrides • Malfunctioning valves • Optimization of boiler & chiller sequencing • Optimization of start/stop • Correct damper and valve problems • Optimization of cold-deck reset, duct static reset, HW supply temp, terminal box minimum flow • Optimization of schedules • Optimization of chiller sequencing • Optimization of CHW pump control

  17. Questions? Variable Frequency Drive GO BRONCS! Energy Efficient Chiller

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