According to Bridge to India, solar capacity in India dropped from 5,013 MW in 2019 to 2620 MW whereas for Wind, the capacity dropped from 1,879 MW in 2019 to 1,309MW in 2020.
The rooftop solar capacity addition in 2020 was 979MW which was 36% below installations in 2019.
The reasons for the drop in installation were mainly
- Covid related issues
- Delays in government approvals and financial closures
- Other restrictive working practices
More details available here.