In renewable energy, roof-mounted solar: an assessment made or conducted by the Transmission Network Provider/System Operator, in addition to the Grid Impact Studies and in accordance with the Philippine Grid Code (PGC), to determine the adequacy of the Grid and its capability to accommodate a request for power delivery service and the costs, if any, that may be incurred in order to provide power delivery service to a transmission customer [Section 5.11, DOE Department Circular No. DC2023-12-0035, Prescribing the Policy and General Framework on the Expanded Roof-Mounted Solar Program in the Philippines]
In electric power, transmission: the assessment made or conducted by the TNP/System Operator (SO) in addition to the Grid Impact Studies, prepared by it in accordance with the Philippine Grid Code, to determine: (i) the adequacy of the grid and its capability to accommodate a request for power delivery service and (ii) the costs, if any, that may be incurred in order to provide power delivery service to a Transmission Customer. The SIS may be conducted by an accredited thirty-party SIS provider, subject to the approval of the TNP [Section 2.6, DOE Department Circular No. DC2026-01-0001, Policy on Allowing Generation Companies to Finance and Construct Associated Transmission Projects for the Timely Integration of Power Projects Critical to the Country’s Energy Transition and Supply Security, https://d24qbtp4vooyzi.cloudfront.net/api/media/file/DC2026-01-0001.pdf?prefix=dev%2Fmedia]