Generator Interconnection Study
End-to-end study support for generator/BESS interconnection including power flow, short circuit, stability, and protection deliverables.
What is a Generator Interconnection Study?
A generator interconnection study package evaluates the system impacts of connecting generation or BESS at the POI. Typical scope includes load flow, short-circuit, stability, and protection-related deliverables based on utility/RTO requirements.
These studies ensure the proposed project can be safely and reliably interconnected without degrading system performance, violating equipment ratings, or creating stability risks. The scope depends on project size, POI voltage level, system strength, and utility-specific interconnection procedures.
Interconnection studies are required by utilities and ISOs/RTOs before project construction and energization. They inform upgrade costs, operational requirements, and interconnection agreements.
When This Study Is Required
New Generator/BESS Interconnection
Applications for PV, wind, BESS, or hybrid projects
Capacity or Control Changes
Upgrades in MW/MVA, equipment replacement, control modifications
Utility/RTO Study Process
Milestones and submissions per interconnection procedures
Resubmissions & Updates
Technical comments response and design changes
What eGridSync Delivers
Study scoping aligned to utility/RTO requirements
Data request checklist and model readiness assessment
Load flow impacts and mitigation recommendations
Short-circuit impacts (fault duty and equipment checks)
Stability analysis (where required)
Protection coordination and settings support (where required)
Utility-ready reporting package and responses to technical comments
Engineering support through interconnection approval
Inputs Required (Data Request Checklist)
| Item | Examples | Why Required |
|---|---|---|
| POI details | Substation, breaker, voltage, interconnection config | Defines interconnection point |
| Project data | MW/MVA, PF mode, controls | Drives impacts |
| Models | Network + dynamic + inverter/controller | Required for studies |
| Equipment | Transformer data, collector system, ratings | Impacts and constraints |
| Utility criteria | Screening/full study requirements | Defines deliverables |
| One-line diagram | Project layout, POI connection details | Topology understanding |
Interconnection Study Process
Scope Definition & Data Request
Clarify utility requirements, identify needed data, establish timeline
Model Development & Validation
Build/validate base case, integrate project models, verify topology
Study Execution
Run required studies per scope (load flow, SC, stability, protection)
Impact Analysis & Mitigation
Identify violations, propose solutions, cost-effective alternatives
Report Delivery & Support
Utility-ready package, meeting attendance, technical Q&A, resubmissions
Common Issues Identified
Voltage or Thermal Violations
POI or nearby buses exceeding limits requiring upgrades or mitigation
Equipment Rating Exceedances
Breakers, transformers, or lines impacted requiring replacement or reconductoring
Stability or Control Concerns
System strength, damping, or ride-through issues requiring controls tuning
Incomplete or Incorrect Models
Missing data causing delays and requiring resubmission cycles
Frequently Asked Questions
What studies are typically included?
Usually power flow, short circuit, and sometimes stability and protection.
Can you handle utility comments?
Yes—technical clarifications and reruns if needed.
What's the biggest schedule risk?
Missing/incorrect models and incomplete POI data.
Can you support both PV and BESS?
Yes—control modes and limits must be clearly defined.
Do you provide a submission-ready report?
Yes—structured and utility-friendly.
How long does an interconnection study take?
Typically 4-8 weeks depending on scope, data availability, and utility queue position.
What if the utility requires revisions?
We support technical responses and reruns per utility comments.
Do you coordinate with the utility directly?
Yes, we can attend meetings and respond to technical questions.
What's included in the study cost?
Scope depends on utility requirements; we provide detailed cost breakdown upfront.
Can this support FERC/RTO queue processes?
Yes—studies can be tailored to ISO/RTO and utility-specific requirements.
Ready to Start Your Interconnection Study?
Contact eGridSync for comprehensive interconnection study support.