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Retrofit calculations

When you add a future retrofit to a building the projected value is replaced by the retrofitted resource consumption value - beginning from the year the retrofit measure is planned for the Retrofit simulation dashboard.

For more information on how to manage retrofits, see Manage retrofits.

Depending on the selected retrofit type the last collected resource consumption value provided by our organization is taken and a new emission factor is applied for the carbon emission retrofit simulation. If you additionally added a reduction in heating or electricity demand in percent this is also applied to the retrofitted resource consumption value. For more information on the dashboard.

Note

If the status of the retrofit measure is Rejected the retrofit is not considered for the Retrofit simulation dashboard.

Example: Changing the heating system from heating oil-based to district heating and adding insulation to the building's facade

The asset you are adding a retrofit to is located in Germany and the heating system is changed from oil-based to district heating planned to take place in 2025. Additionally, you are adding insulation to the facade as part of the retrofit for which you estimate a reduction of 25% in heating demand for the building.

  1. The last collected heating consumption value provided by your organization is taken.

  2. The new emission factor for the type District heating for the respective country of the building and year starting from 2025 until 2050 is applied. For more information, see Emission factors.

  3. Additionally, the 25% expected reduction in heating demand you have entered for the retrofit is applied.

  4. The simulation is displayed in the preview of the retrofit management and the Retrofit simulation dashboard.

Retrofit: Heat pump

When you are planning a retrofit where you are switching to a heat pump as a heating system for your building the following steps are performed. Heat pumps use 1 kWh of electricity to generate 3 kWh of heating energy.

  1. The last collected heating consumption value provided by your organization is taken.

  2. The heating consumption value is divided by 3 based on a typical "Coefficient of Performance" of 3.

  3. BuildingMinds Platform checks the electricity type that is used for the building and the respective emission factor is applied.

    • Electricity from grid (green electricity contract)

    • Electricity from grid (normal contract)

  4. The simulation is displayed in the preview of the retrofit management and the Retrofit simulation dashboard.