The Ministry of New and Renewable Energy (MNRE) has released updated guidelines to facilitate the installation of prototype wind turbine models in India. These revised guidelines apply to all wind turbine manufacturers seeking to install prototypes for type testing and certification, with land to be allocated on a footprint basis. Installation will be permitted only for obtaining type certificates from internationally accredited testing and certifying bodies. The National Institute of Wind Energy (NIWE), Chennai, has been designated as the implementing agency. Manufacturers must submit the required documentation to NIWE for recommendation to proceed with prototype testing and grid synchronisation. The permissible type certification schemes include IECRE OD 501 and IS/IEC 61400-22:2010.
Manufacturers are required to submit contracts with these bodies, prototype certificates specific to site locations, and annual letters detailing the status of type testing and maintenance. In case the site/location details are not a part of the prototype certificate, a separate letter must be issued in this regard. The prototype certificate will be valid for a maximum of three years, with possible extensions under specified conditions. Modifications may be allowed with a revised certificate and list of changes, but the model name must remain the same. Up to three prototype turbines may be synchronised to the grid per model, and all must be commissioned within 18 months of receiving the NIWE recommendation. Testing and certification must be completed within three years, or four years in the case of a revised certificate. Annual letters from the certifying body regarding maintenance and testing progress are mandatory. Failure to comply may result in immediate disconnection from the grid and removal of the turbine at the manufacturer’s expense. Commissioning and synchronisation reports must be submitted to NIWE immediately after grid connection.
Furthermore, components used in manufacturing must be new and unused, with exemptions from custom and excise duties available. The prototype turbines must remain under the ownership of the manufacturer and cannot be sold until the model is included in the Revised List of Models and Manufacturers (RLMM). Serial production is also restricted until RLMM inclusion. Additionally, manufacturers must submit an affidavit and indemnity bond to NIWE and the respective state utilities. The MNRE has clarified that failure to adhere to any of these conditions could lead to withdrawal of approval in the interest of safety and security.
