Featured projects.

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.

20+ Remedial Action Scheme projects

Approved RAS contractor delivering across utility-side CRAS and customer interconnection sites.

Coastal Grid has delivered engineering services for over 20 individual Remedial Action Scheme (RAS) projects, spanning both utility substations and customer interconnection sites. On the utility side, we are an approved RAS contractor for SCE, where we have engineered numerous projects including their critical Centralized Remedial Action Schemes (CRAS). On the customer side, we engineer the RAS that ties new generation and storage facilities into the bulk system, working directly with developers, IPPs, and EPCs. Across both sides of the meter, we deliver the full RAS lifecycle: logic design, relay and controller configuration, factory acceptance testing, and site commissioning.

Standard IED file development: 250+ files maintained

250+ standard IED configuration files updated and maintained across the fleet.

As the lead technical resource for SCE, Coastal Grid updated and maintained over 250 standard IED configuration files. Partnering with the Standards and Protection/Automation teams, we developed templates for all protection and automation devices installed in the field. Our team upgraded the files to incorporate the latest technology, researched new features, and provided implementation recommendations, with a particular focus on IEC 61850.