MTerra Solar begins commercial operations and supplies 600 MW AC under PPA with Meralco

Type: Ppa · Technology: Solar, Storage, Hybrid · Country: Philippines · Capacity: 600 MW · Announced: 2026-08-26

MTerra Solar Phase 1 began commercial operations on 2026-08-26 and is supplying 600 MW AC of mid-merit capacity under a Power Supply Agreement (PSA) with Meralco. The project received the Final Certificate of Approval to Connect (FCATC) from the National Grid Corporation of the Philippines (NGCP), confirming completion of technical tests for grid connection and operation. The FCATC approval covers up to 950 MW AC of solar capacity and 825 MW of battery energy storage system (BESS) capacity associated with the development. Construction progressed from groundbreaking in November 2024 to inauguration in July 2026, with commercial operations reached in less than two years. The PSA ties the 600 MW AC of mid-merit supply directly to Meralco, the Philippines' largest private electricity distribution utility, enabling grid integration backed by NGCP certification.

Analysis

MTerra Solar Phase 1 began commercial operations on 26 August 2026, supplying 600 MW AC of mid‑merit solar capacity to Meralco under a Power Supply Agreement. The National Grid Corporation of the Philippines, the sole transmission service provider operating more than 23,000 circuit‑kilometers of grid, issued the Final Certificate of Approval to Connect confirming technical completion for up to 950 MW AC of solar and 825 MW of battery storage at the site. Meralco, the Philippines’ largest private electricity distribution utility, serves over 7.6 million customers in Metro Manila and surrounding provinces. The project progressed from groundbreaking in November 2024 to inauguration in July 2026 and achieved commercial operation in less than two years. The PSA ties the 600 MW AC supply directly to Meralco and is backed by NGCP certification.

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