As one of the leading international service provider in the field of wind energy, DEWI offers all kinds of wind energy related measurement services, energy analysis, studies and further education for industry, wind farm developers, banks, governments and public administrations. The DEWI GmbH is accredited to ISO/IEC 17025, MEASNET member and is recognised as an independent institution in various measurement and expertise fields. More than 1.400 customers in more than 53 countries are on DEWI’s reference list.

Since June 2012 DEWI is part of UL (Underwriters Laboratories). 

DEWI Services

. Site Assessment

. Wind Turbine Assessment

. Grid Integration

. Due Diligence

. Knowledge





The accreditation is valid only for the DEWI locations, test and calibration procedures mentioned in the certificates. The certificates are available on request or on

Statistics Germany

Status 31.12.2013

Total installed capacity: 
34.660 MW (23.875 WEA)

New installations 2013: 
3.591,71 MW (1.296 WEA)

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MediaData 2014

Media Data 2014
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Opens internal link in current windowDEWI Magazin Archive


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Wind Turbine Certification

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DEWI at fairs/conferences

DEWEK 2015

12th German Wind Energy Conference
19 - 20 May 2015
Bremen, Germany


December 2013 Approaches to Improve the Acceptance of Wind Farm Noise


December 2013 Advanced Outdoor Wind Test Facility Grand Opening


November 2013 DEWI and RAWI Sign Cooperation Agreement


September 2013 10 Years of DEWI-OCC in Cuxhaven