About
Founded in 1993, VTW Versorgungstechnik Wahl is a renewable energy company headquartered in Altensteig, Germany specializing in Solar, Energy Storage.
VTW Versorgungstechnik Wahl is an independent, certified energy consultant established in 1993. The company provides comprehensive building energy consulting services including energy audits (consumption-based and demand-based), individual renovation roadmaps (iSFP), photovoltaic system calculations, hydraulic balancing certification, ventilation concepts, and supporting documentation for government grants (BAFA, KfW). Services cover both residential and commercial buildings, with expertise in energy efficiency optimization, thermal protection calculations, and compliance with German building energy legislation (EWärmeG, GEG).
Headquarters
Altensteig, Germany
Founded
1993