Since 1996, windtest grevenbroich gmbh offers a wide range of services for the renewable energy sector, including measurements of power performance, loads, electrical characteristics and acoustic noise as well as site evaluations to establish site quality, wind, yield or shadow impact. The employees of windtest grevenbroich gmbh advise developers, project managers, banks and insurance companies, are active as technical consultants in standardization working groups, and play a leading role in international technical organizations such as MEASNET and IEC RE. In the last 29 years, windtest grevenbroich gmbh has completed more than 9,800 projects worldwide and has a subsidiary in the USA since 2014.