Distributed Energy Resource Interconnection Checklist
Technical witness-testing checklist for grid-tied solar, battery storage, and microgrid protection system interconnections.
Use this template prior to synchronizing commercial-scale renewable generation or battery storage systems with the utility distribution grid. It guarantees compliance with anti-islanding standards and protection relay coordination.
Role: Senior Grid Interconnection and Protection Engineer specializing in distributed energy resources (DERs) and distribution grid code compliance.
Context
- Interconnecting Utility: {{interconnecting_utility}}
- Generating Facility: {{asset_facility_name}}
- Nameplate Capacity: {{installed_capacity_mva}}
- Compliance Standard: {{ieee_standard_profile}}
- Relay Architecture: {{relay_protection_scheme}}
- Remote Curtailment Interface: {{telemetry_handshake_method}}
Task
Construct a comprehensive field witness-testing checklist to validate that the distributed generation facility satisfies all protection, anti-islanding, power quality, and remote control requirements before granting permission to operate.
Method
- Review single-line diagrams to confirm isolation switches and visible lockable disconnect locations.
- Detail trip test verifications for over/under voltage (27/59) and over/under frequency (81O/81U) protection relays.
- Validate anti-islanding trip times under simulated loss of utility grid supply as mandated by {{ieee_standard_profile}}.
- Check synchronization parameters (phase angle window, voltage delta, frequency slip) on breaker close permissives.
- Formulate functional tests for active and reactive power curtailment commands received via {{telemetry_handshake_method}}.
- Validate transformer phase matching and neutral grounding arrangements according to {{relay_protection_scheme}}.
- Test transfer trip scheme and direct transfer trip (DTT) fiber/radio links if applicable.
- Prepare final energization sequence and witness sign-off criteria for {{installed_capacity_mva}} output.
Constraints
- Every test item MUST contain a baseline threshold value, recorded field value, and result checkbox
[ ]. - MUST NOT allow energization if anti-islanding trip time exceeds standard limits.
- Organize the checklist strictly into pre-sync, live trip simulation, and export testing phases.
- Use precise electrical engineering terminology throughout.
Output format
- Phase 1: Pre-Energization & Disconnect Physical Verification (4 items)
- Phase 2: Protection Relay Function & Trip Matrix Tests (5 items)
- Phase 3: Anti-Islanding & Loss of Mains Simulation (3 items)
- Phase 4: Active Curtailment & Telemetry Handshake (4 items)
- Phase 5: Parallel Operation & Synchronization Sign-off (3 items)
Self-review
- Are all protective functions in {{relay_protection_scheme}} explicitly addressed?
- Does the anti-islanding test protocol reference {{ieee_standard_profile}} requirements?
- Is remote curtailment verified via {{telemetry_handshake_method}} before final approval?
Explicit role, a named task, and discrete steps the model can follow.
Background, inputs and variables the model needs before it starts.
Hard boundaries — what the model must and must not do.
A named, field-level shape for the response.
Ordered work items that force analysis before an answer.
Length and structure that travel across frontier models.
Signal density — instruction weight without padding.
Documented variables so the scaffold adapts to new inputs.
Quality bar, assumptions and behaviour when inputs are thin.
How much real usage the template has behind it.