An energy certificate is a document that certifies the energy performance of a building or other facility. Some attributes that may be included in an energy certificate are:
| Building type | The type of building or facility being certified, such as a single-family home, a multi-family apartment building, or a commercial office building. |
| Address | The location of the building or facility being certified. |
| Date of issue | The date on which the energy certificate was issued. |
| Date of validity | The period of time for which the energy certificate is valid. |
| Energy performance | A rating of the energy efficiency of the building or facility, typically expressed on a scale from A (most efficient) to G (least efficient). |
| Energy consumption | The amount of energy consumed by the building or facility, typically measured in kilowatt-hours (kWh) or British thermal units (BTUs). |
| CO2 emissions | The amount of carbon dioxide emissions resulting from the energy consumption of the building or facility. |
| Recommendations | Suggestions for improving the energy performance of the building or facility. |
Energy certificates are often required by law in order to sell or rent a building, and they provide information about the energy efficiency of the building to potential buyers or tenants. They can also be used to qualify for incentives or subsidies related to energy efficiency.