Access the SCE Integration Capacity Analysis (ICA) API to identify distribution circuit segments with available hosting capacity for new DER interconnection

Steps

1. 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
2. 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
3. Filter results for segments where peakGenerationCapacity_kW exceeds your project's nameplate capacity to identify feasible interconnection points
4. 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
5. 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
6. 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