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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 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
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
CEUS Coverage by Utility Geography covered by CEUS
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
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
Ktherms by Month Commercial Sector Site Energy Use
Ktherms by Month Commercial Sector Source Energy Use
GWh by Month Commercial Sector Electricity Use
GW by Month Commercial Sector Peak Demand (8) 500MW Power Plants
kW on Hot Summer Day Commercial Sector Peak Demand
Total = 3,567 Mtherms Site Energy Use by Building Type
therms/ft2 Energy Intensity by Building Type
Total = 3,567 Mtherms Site Energy Use by End Use
each “Miscellaneous” Buildings each
kBtu/ft2 Energy Intensity by End Use
% of All Systems HVAC Cooling Types Multi Zone Single Zone
Lighting Types - % of Total Wattage 4 ft. Fixture 8 ft. Fixture
% of Total Wattage Lighting by Building Type
% of Total Wattage CFL & Incandescent Bulbs
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