RECs in India are of two types:
1. Solar RECs

Solar RECs are issued to eligible entities for generation of electricity based on solar as renewable energy source

2. Non Solar RECs (Wind Energy/Hydro Power/Biomass Power etc.)

Non-solar RECs are issued to eligible entities for generation of electricity based on renewable energy sources other than solar.

The certificates are valid only for a single trade and may be sold within 730 days* of issuance after which they shall lapse. These
certificates shall be traded within the price band determined by the CERC from time to time.

 *Revised as per CERC Order Dated 11.02.2013