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Building Energy Use




















Enterprise Building Energy Use 2018-2022

State agencies that own buildings must report annual electricity and natural gas use to the Oregon Department of Energy (ODOE) under the State Energy Efficient Design (SEED) program. This applies to buildings that are 5,000 square feet or larger. 

In 2022, state buildings used over 1.3 billion kBTUs of energy. A kBTU, or "thousand British Thermal Units," is a standard way to measure energy. It combines different energy types, like electricity (kWh) and natural gas (therms). One BTU is the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit. 



Agency Building Energy Use 2018-2022 
Energy use across state agencies dropped slightly during the Covid pandemic in 2020 and 2021. However, by 2022, energy use rose again and went above pre-Covid levels.  

Several  factors affect energy use, including: 
  • Adding or removing buildings.
  • Weather changes increasing heating or cooling needs. 
  • Equipment efficiency.
  • Building operating hours.  
Twenty-two agencies own their own buildings, with portfolios ranging from single buildings to large campuses. Some buildings use only electricity for lighting, heating, cooling, and plug loads (equipment that plugs into an outlet). Others rely heavily on natural gas for heating and hot water. 

Energy-Saving Efforts

Agencies have reduced their electricity use by:
  • Upgrading to LED Lighting.
  • Managing plug loads.
  • Installing more efficient cooling systems (chillers). 
To save natural gas, agencies are upgrading heating systems to more efficient models when older systems wear out. State law also requires agencies to explore full electrification of building during major renovations or new construction projects. 

Agencies also look at: 
  • Adjusting building operating hours.
  • Charging indoor temperatures.
  • Monitoring equipment performance.

New Requirements 

New Executive Order 17-20 and HB 3409 (2023), requires agencies with buildings over 35,000 square feet to: 
  • Set energy efficiency targets.
  • Create energy management plans.
  • Regularly maintain energy systems. 

Note: Blank years in energy reports mean an agency did not submit data for those years.