We work according to:

The Technical Guidline for Wind Turbines: 

TG 6 – Determination of Wind Potential and Energy Yields

published by:  FGW e.V. – Federation of Wind and other Decentralised Energies Oranienburger Straße 45 10117 Berlin Germany  

revision 11 Dated September 9th 2020

and:   DIN EN ISO/IEC 17025:2005

JH Wind GmbH
Amtsgericht Freiburg HRB 708246
Managing Director: Johannes Hagemann