The Indian Electricity Grid Code (IEGC) provides must run status to solar and wind power projects. Their curtailment is only allowed to ensure grid security, for example in situations of transmission constraints.

A petition was filed before APTEL regarding the backing down instructions given by SLDC to solar generators in the state of Tamil Nadu. During this process, APTEL directed POSOCO to conduct a third-party assessment on the issue raised by the appellant. The summary on APTEL order and POSOCO report in this regard can be found here.

POSOCO Report to APTEL on RE curtailmentAPTEL Judgement on RE curtailment