The substation specialists.

RAS engineering for the Bellefield Solar Project

Remedial Action Scheme design for Phase 1 of what will become the largest solar-plus-storage facility in the United States.

Coastal Grid delivered Remedial Action Scheme (RAS) logic design and relay configurations for the first phase of the Bellefield Solar Project, developed by The AES Corporation in California. At 2 GW when fully built out, Bellefield will be the largest solar-plus-storage facility in the United States. We supported both the utility and customer sites to bring Phase 1 online in 2025, and we continue to engineer the RAS as the project moves toward full buildout.

For additional details, see Announcement on LinkedIn.

Protection and automation standards development

Created new substation protection and automation standards, adopted utility-wide.

Coastal Grid served as the lead technical resource for protection and automation standards at Southern California Edison. We worked with all SCE engineering teams to develop new substation standards, including standard schematic and logic prints. We presented updates to the standards committee, served as subject-matter expert, and published all related documentation.