New Delhi, March 19 -- The Centre on Wednesday mandated the use of locally manufactured solar wafers and ingots in large renewable energy projects and government-backed schemes from June 2028.

The move expands the scope of the approved list of models and manufacturers (ALMM) - currently applicable to modules and, from June this year, cells - to components that remain reliant on imports from China.

"MNRE has expanded the ALMM Order to introduce ALMM List-III for ingots and wafers, which will take effect from 1 June 2028. Suitable grandfathering provisions have been built in to protect projects already in the pipeline," said a statement from the ministry of new and renewable energy.

Ingots are used to manufacture wafers, which in turn ar...