THE Manila Electric Company (Meralco) will start sourcing from the Wholesale Electricity Spot Market (WESM) the 670-megawatt (MW) capacity covered by its power supply agreement (PSA) with South Premiere Power Corporation (SPPC) that was covered by a Court of Appeals-issued Temporary Restraining Order (TRO).
Source: https://businessmirror.com.ph/2023/01/26/no-choice-but-wesm-for-meralco-for-now/