Gujarat Urja Vikas Nigam Ltd vs Emco Ltd. & Ors

The Supreme Court addressed the validity of the Gujarat Electricity Regulatory Commission's (GERC) tariff orders under the Electricity Act, 2003, specifically Sections 61(h), 62(1)(a), and 86(1)(e). The Court held that the tariff fixed in the 1st Tariff Order, which established rates for solar energy projects, must be honored as per the Power Purchase Agreement (PPA) despite subsequent changes in tariff regulations. The judgment emphasized the binding nature of the original tariff provisions in the PPA, affirming the rights of power producers under the initial tariff structure.