The Malaysian electricity regulator, Suruhanjaya Tenaga (ST), sought consulting advice to evaluate the effectiveness of its incentive based regulation mechanism and to review tariff submissions by TNB, the monopoly electricity utility in Peninsular Malaysia. ECA’s work included auditing TNB’s performance during the preceding three years, reviewing TNB’s submissions on future costs of service, developing a comprehensive revenue/tariff model, preparing new regulatory reporting standards and templates, developing key performance indicators, and drafting a new set of revenue/tariff regulations.