The design of the Auroville Multiblade Windmill has evolved from practical experience gained in operational use over the last 25 years. The result is a reliable and efficient device, which requires minimum maintenance.

In support of these claims, it is interesting to note that in 1993 the Auroville Windpump was listed and described in the European Community Joule Project JOU2 CT93 0421: "Power for the World A common concept" as an excellent example of a Renewable Energy Application. A cost comparison done by Halcrow Gilbert Associates Ltd., UK, for the Government of the Netherlands, also states that the Auroville windpump delivers the lowest cost per water unit, compared with other windpumping systems, PV pumps or diesel pumps.