Section 2(1)(q) in Tamil Nadu Electricity Regulatory Commission (Terms and Conditions for Determination of Tariff for Transmission/Distribution of Electricity Under MYT Framework) Regulations, 2009
(q)"Open Access Customer" means a consumer permitted by the Commission to receive supply of electricity from a person other than the Distribution licensee of his area of supply, and the expression includes a generating company and licensees, who have availed of or intend to avail of open access;