Authors

Authors on the Energyausweis blog

The people behind the Energyausweis blog: energy consultants and editorial staff who research, write and review articles on energy performance certificates, the GEG, GModG and building retrofit.

  • Photo of Joost Jansky

    Joost Jansky

    Energy consultant, blogger

    Joost Jansky writes for the Energyausweis blog about energy performance certificates in practice, building retrofit, and current legislation around the GEG, GModG and the EU Buildings Directive (EPBD). Focus: existing residential buildings, the difference between demand-based and consumption-based certificates, and realistic retrofit paths for owners.

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  • Photo of Lea Foster

    Lea Foster

    Energy efficiency expert, content manager

    Lea Foster is content manager for the Energyausweis blog. She checks articles for technical accuracy and ensures topics around energy certificates, heating, retrofit and property valuation remain accessible to non-specialists.

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