ANERT is designated as the State Agency for Renewable Purchase Obligations (RPO) and Renewable Energy Certificates (RECs) in Kerala.

Renewable Purchase Obligation (RPO) mandates that all electricity distribution licensees should purchase or produce a minimum specified quantity of their requirements from Renewable Energy Sources. This is as per the Indian Electricity Act, 2003. The State Electricity Regulatory Commissions fix the minimum RPO for the State. The Kerala State Electricity Regulatory Commission (KSERC) has notified a total RPO of 3% in 2010. Of this, 2.75% is to be met from non-solar sources and 0.25% from solar energy. The RPO increases by 10% of 3% every year, up to a maximum of 10%.