Maharashtra Electricity Regulatory Commission (MERC) has allowed Brihanmumbai Electric Supply and Transport Undertaking (BEST) to extend its existing Power Purchase Agreement (PPA) with The Tata Power Company Ltd. (TPC-G) for 677 MW supplied from its Trombay Thermal and Hydro plants for a period of five years from 1 April 2019 to 31 March 2024. After the due diligence for ensuring the reliability of supply and cost competitiveness for the BEST consumers in Mumbai, the Hon'ble Commission, in its order on 2nd January 2019, approved the extension. The Hon'ble Commission's order came after BEST inter alia submitted that the cheapest option before BEST is the extension of its present PPA with Trombay Thermal Power Station and Hydro plants of Tata Power. BEST and Tata Power have agreed for an extension of PPA with existing terms and conditions.