The firm of consulting engineers aerodyn Energiesysteme GmbH was founded in 1983 and in these 20 years has concentrated its work wholly on the development of wind energy converters and all of their components. To date, aerodyn's development services have featured significantly in approx. 70 very different types of WECs for numerous manufacturers and has completed a great number of successful overall development projects. In this respect, the scope of performance includes WECs ranging from 5 kW up to 5000 kW. This makes aerodyn the leading, independent firm of consulting engineers world-wide for the development of wind energy converters. The competence of the staff and their extensive know-how means that aerodyn is capable of fully developing new wind energy converters and of supporting the project until it is ready for series. The engineering services encompass the development of innovative concepts for the wind energy converters, structural dynamics and load calculation, component design, optimisation of parts, aerodynamic and structural rotor blade design, finite element method calculation for casting, welded and fibre compound elements as well as the entire documentation for production and certification. Consequently, aerodyn can offer manufacturers of wind energy converters and their components comprehensive support in all areas of wind energy technology so that they can produce wind energy converters even more reliably, more efficiently and at even more cost-effective prices.