Access the SCE Integration Capacity Analysis (ICA) API to identify distribution circuit segments with available hosting capacity for new DER interconnection
Navigate to the SCE Hosting Capacity Map portal; use SCE's published API endpoint (confirmed available per CPUC Decision 17-09-026 requirements) to programmatically fetch ICA data: SCE provides a machine-readable API for importing hosting capacity data into internal systems
Query the ICA API with a bounding box or circuit ID parameter to retrieve available capacity in kW for generation (export) and load (import) at each circuit segment; the API returns GeoJSON FeatureCollections with properties including: circuitID, peakGenerationCapacity_kW, offPeakGenerationCapacity_kW, and timestamp of last update
Filter results for segments where peakGenerationCapacity_kW exceeds your project's nameplate capacity to identify feasible interconnection points
Check the quarterly update cadence: CPUC requires California IOUs to update ICA data quarterly; verify the dataset vintage using the lastUpdated field before making siting decisions
Attend or review results of the quarterly ICA issue remediation workshops (first held March 7, 2025 per CPUC Order); workshop notes are posted to the CPUC distribution planning page and may contain known data quality issues for specific circuits
For projects larger than 500 kW, supplement the ICA data with a formal SCE pre-application report request to get circuit-specific hosting capacity confirmation before paying the interconnection application fee
Known gotchas
ICA data is a planning-level estimate, not a formal interconnection study result; a circuit showing positive ICA headroom may still require upgrades identified in the formal interconnection study — never use ICA alone to guarantee interconnection cost
SCE's ICA API requires a registered account and terms-of-use acceptance; attempting to scrape the map UI endpoints directly violates the terms of service and those endpoints lack stable schema versioning
ICA does not account for queued but not yet built projects; a circuit with 500 kW of apparent headroom may have 2 MW of earlier-queue projects that will consume that capacity — always check the interconnection queue overlay on the map
Give your agent this knowledge — and 200+ more routes
One MCP install gives any agent live access to the full route map, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp