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This calculator is solely intended for information purposes. The energy savings, CO2 reductions and productivity gains projected in this summary are only indicative results. The projected energy savings and CO2 reductions are based on the EN15232:2017 norm, our general experience and averaged data commonly available. The projected productivity gains are based on generic statistical data and averages of related research studies. In practice, the actual energy savings, CO2 reductions and productivity gains may differ from these results depending on the building structure, the building equipment, building usage patterns, the weather and other factors.


This calculator does not contain legal declarations, particularly no representations and warranties of any kind and is not a binding offer. For your individual energy savings, CO2 reductions or productivity gains, we recommend that you get in contact with our experts who may provide further analysis and more detailed estimates. The availability of such services may vary from country to country. For any specific information or legal binding declarations, please contact your Siemens‘ regional company or a Siemens Solution Partner. Siemens reserves its rights, without being obliged, to update or to amend this calculator at any time.