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Peeking Under the Hood: The Energy Characteristics of California’s Commercial Building Sector

Peeking Under the Hood: The Energy Characteristics of California’s Commercial Building Sector. Martha Brook, P.E. California Energy Commission. Presentation Overview. Source & Description of Data Commercial Sector Energy & Peak Building Types End Uses HVAC Details Lighting Details.

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Peeking Under the Hood: The Energy Characteristics of California’s Commercial Building Sector

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  1. Peeking Under the Hood:The Energy Characteristics of California’s Commercial Building Sector Martha Brook, P.E. California Energy Commission

  2. Presentation Overview Source & Description of Data Commercial Sector Energy & Peak Building Types End Uses HVAC Details Lighting Details

  3. Commercial End Use Survey (CEUS) Field Survey of 2790 CA Commercial Buildings PG&E: 1001 premises SMUD: 300 premises SCE: 1144 premises SDG&E: 345 premises 12 Building Types/Segments 13 End Uses (3 HVAC, 10 NonHVAC) 16 Title 24 Standards Climate Zones

  4. CEUS Coverage by Utility Geography covered by CEUS

  5. CEUS Coverage by Climate Zone

  6. CEUS Building Types Small Office (<30,000 ft2) Large Office (>=30,000 ft2) Restaurant Retail Food/Liquor Unrefrigerated Warehouse Refrigerated Warehouse School College Health Care Hotel/Motel Miscellaneous

  7. CEUS End Uses 3 HVAC End Uses Space Heating Space Cooling Ventilation 10 Non-HVAC End Uses Water Heating Cooking Refrigeration Interior Lighting Exterior Lighting • Office Equipment • Miscellaneous Equipment • Air Compressors • Motors (non-HVAC) • Process Equipment

  8. Ktherms by Month Commercial Sector Site Energy Use

  9. Ktherms by Month Commercial Sector Source Energy Use

  10. GWh by Month Commercial Sector Electricity Use

  11. GW by Month Commercial Sector Peak Demand (8) 500MW Power Plants

  12. kW on Hot Summer Day Commercial Sector Peak Demand

  13. Total = 3,567 Mtherms Site Energy Use by Building Type

  14. therms/ft2 Energy Intensity by Building Type

  15. Total = 3,567 Mtherms Site Energy Use by End Use

  16. each “Miscellaneous” Buildings each

  17. kBtu/ft2 Energy Intensity by End Use

  18. HVAC Types - % of Total Floor Space

  19. Single Zone Equipment Types

  20. Multi Zone Equipment Types

  21. % of All Systems HVAC Cooling Types Multi Zone Single Zone

  22. Average Tonnage of DX Single Zone 5

  23. Average Tonnage of DX Multi Zone

  24. Average Tonnage by Chiller Type

  25. Lighting Types - % of Total Wattage 4 ft. Fixture 8 ft. Fixture

  26. % of Total Wattage Lighting by Building Type

  27. % of Total Wattage CFL & Incandescent Bulbs

  28. Downloadable CEUS data summaries:http://capabilities.itron.com/ceusweb/ More on CEUS… California Energy Commission’s CEUS report:http://www.energy.ca.gov/ceus/index.html Special thanks toBob Ramirez

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