Research & Development unit: Its main focus towards novelty in developments of components as well as in sub-systems of wind turbines by collaborative works with other R&D institutions/industry.

Wind Resource Assessment Unit: The unit identifies resource rich regions in the country by conducting wind resource micro survey and offers its services to the wind farm developers. To prepare wind map for the nation, it is assessing and analyzing wind resources.

Wind Turbine Testing Unit: To establish world class facilities in testing of complete Wind Turbine Generator Systems (WTGs) according to international standards (IEC) and Type Approval Provisional Scheme (TAPS-2000).

Standards and Certification Unit: The unit carries out Provisional Type Certification of Wind Turbines as per the Indian Certification Scheme for Wind Turbines viz. Type Approval - Provisional Scheme - TAPS - 2000 (amended). Standards on Wind Energy are being developed by the unit.

Information, Training & Commercial Service Unit: To establish and update the data bank and serve as finest information centre in wind energy by collecting, collating and analyzing the related information. National and International training workshops are being organized regularly for the benefit of stakeholders. The unit is regularly publishing a well received quarterly newsletter, PAVAN  that carries topical information regarding the field and addresses the need for information, both for casual and serious interest.

Solar Radiation Resource Assessment: Ministry of New and Renewable Energy (MNRE) has initiated a major project on Solar Radiation Resource Assessment (SRRA) across the nation to assess and quantify the solar radiation availability along with weather parameters with a view to develop Solar Atlas. Centre for Wind Energy Technology (C-WET), Chennai is implementing the project by installing a network of 51 Automatic Solar Radiation Monitoring Stations (ASRMS) in the first phase in different States using high quality, high resolution equipment/instruments.