Enter values in this section to identify the metered and delivered energy supply sources for all of the building's energy systems. Select the green ‘Add Available Energy’ button and select an energy supply source from the Energy Type drop down menu.
The sources selected here will auto populate the available Energy Supply Source, Utility Type, Energy Type, and Annual Energy and Cost Savings field selection options on the Metered Energy Supply Source Details, Metered Energy, Delivered Energy, Energy Use by End Use, and Energy Savings Opportunities screens.
A maximum of 3 metered and 2 delivered energy supply sources may be added. The table below lists which sources are identified as Metered or Delivered Energy:
|Metered Energy||Delivered Energy|
|Electric||Fuel Oil #1|
|Natural Gas||Fuel Oil #2|
|Chilled Water||Fuel Oil #3|
|Hot Water||Fuel Oil #4|
|District Steam||Fuel Oil #5 (Light)|
|Gaseous Propane||Fuel Oil #5 (Heavy)|
|Thermal Energy - Generated On-Site*||Diesel|
|Electricity - Generated On-Site**||Gasoline|
|Thermal Energy Exported||Kerosene|
|Electricity Exported||Liquid Propane|
*Thermal energy sources include solar thermal collectors that provide hot water that can be used for space heating or water heating, or solar thermal applications that generate hot water used for space heating, etc.
**Electricity generated on site includes the electricity generated through renewable sources of energy such as solar photovoltaics, solar thermal power plants that convert solar energy to electricity or biogas plants that are used to generate electricity.
The description and image below from ASHRAE SPC 211 illustrates how imported and exported energy is used for calculating site and building energy use intensity (EUI).
Building EUI may be calculated as the sum of the imported energy plus the on-site renewable energy production, minus the exported energy, minus the net increase in stored imported energy for a building.
Site EUI may be calculated as the sum of the imported energy, minus the exported energy, minus the net increase in stored imported energy for a site.