Submit a small generator interconnection application (FERC Order 2023 SGIP) through the SDG&E interconnection portal for a distribution-connected battery storage project
Navigate to the SDG&E Interconnection Map portal at interconnectionmapsdge.extweb.sempra.com to identify the candidate substation polygon and verify queued generation at the proposed point of interconnection
Prepare the FERC Order 2023-compliant SGIP application package: complete the SDG&E Interconnection Request form for projects under 5 MW (Small Generator); include one-line diagram, site plan, equipment specifications (inverter model with UL 1741-SB certification), and the required $500 application deposit
Submit the application through the SDG&E online portal; receive a confirmation with assigned Queue Number and confirm the application has entered the FERC Order 2023 cluster queue cycle
Track the Feasibility Study completion (typically within 45 business days under FERC Order 2023 timelines); download the study results from the portal which will include identified network upgrades and estimated costs
Execute the Interconnection Facilities Study Agreement within the deadline posted in the feasibility study results to remain in the queue; missing this deadline results in automatic withdrawal
After System Impact Study approval, coordinate with SDG&E's Distribution Engineering for the Interconnection Agreement (IA); the IA must reference IEEE 1547-2018 smart inverter settings required for the specific circuit
Known gotchas
FERC Order 2023 requires SDG&E to refund the application deposit within 10 business days if the application is deemed incomplete; however, resubmitting after a rejection loses the original queue position date
UL 1741-SB (or the newer UL 1741-SA) certification is required for all inverters in California since Rule 21 amendments; a system using inverters certified only to the original UL 1741 standard will be rejected at the equipment review stage
The SDG&E interconnection map shows ICA values but the formal application must cite the queue number of any earlier projects at the same POI that affect available capacity — failure to account for queued projects leads to underestimated upgrade costs
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