HIGH-VOLTAGE POWER DELIVERY & GRID INTEGRATION
Navigate RTO/ISO Interconnection Queues with Zero Surprises.
From POI scouting to final IA execution: We engineer high-fidelity shadow studies, dynamic IBR modeling, and deliverability assessments that protect CapEx across PJM, ERCOT, CAISO, MISO, and NYISO.
What we do
We evaluate substation and feeder headroom, nodal congestion, curtailment, transmission constraints and historical queue withdrawals before site commitment. Through tariff-aligned applications, independent utility-study replication and high-fidelity simulations, we identify thermal, voltage, protection, weak-grid and network-upgrade risks early - then support facilities review, IA negotiations and commercial operation date (COD) validation.
Regional RTO/ISO expertise
PJM
Transition Cycle/Decision Point II; cluster feasibility and shadow reviews; upgrade-cost exposure; Manuals 14B/14E.
ERCOT
Large-load and QSA processes; RPG submissions; Full Interconnection Study (FIS) shadow modeling; weak-grid PSCAD dynamics.
MISO
Definitive Planning Phase (DPP), Batch Zero/cluster mitigation; POI and flowgate analytics; Attachment X.
NYISO
Standard Interconnection Procedures (SIR); Class Year preparation/shadow studies; headroom and voltage fluctuation; ConEd/upstate coordination.
SPP & regulated
High Impact Large Load (HILLGA); SERC, Duke/Southern transmission; WECC path ratings; radial tap versus ring-bus feasibility.
Services We Provide
01
Siting, POI Feasibility & Queue Strategy
Don't guess where to interconnect. We evaluate available capacity on target transmission lines, quantify local substation constraints, and review historical queue drops to identify optimal POIs before you commit development capital.
-
Substation & Feeder Headroom Analysis
-
Nodal Congestion & Curtailment Risk Checks
-
Preliminary Single-Line Diagram (SLD) Drafting
02
Applications, Filing & Study Preparation
Interconnection applications rejected for technical non-conformance set projects back an entire cycle. We prepare, audit, and submit complete engineering data packages tailored to specific utility and RTO requirements.
-
Generator Interconnection Request (GIR) Preparation
-
Dynamic Model Formatting (PSS®E & PSCAD)
-
Collector System Layouts & Impedance Calculations
03
Shadow Impact Studies & Advanced Modeling
Mirror the utility's study methodologies before they release results. We run independent simulations to uncover potential thermal violations, voltage stability risks, and multi-million-dollar Network Upgrade allocations.
-
Steady-State Power Flow & Thermal Overload Analysis
-
Short-Circuit Ratio (SCR) & Weak-Grid Modeling
-
Affected System & Shared Facility Impact Reviews
04
Substation Integration, IA & Commissioning
Defend your project during the Facilities Study and Interconnection Agreement (IA) negotiations. We review utility facility study reports, audit cost estimates, and support post-IA registration.
-
Utility Scope & Cost Estimate Auditing
-
Relay Coordination & Telemetry Alignment
-
COD Commissioning & Model Validation Support
Specialized Analytical & Dynamic Modeling Capabilities
CAPABILITY // PSCAD / EMT DYNAMIC SIMULATIONS
As transmission operators enforce strict weak-grid integration criteria, RMS simulations are no longer enough. We build and run complete electromagnetic transient (EMT) models in PSCAD to evaluate control instability, inverter phase-locked loop (PLL) behavior, and sub-synchronous oscillations.
CAPABILITY // SUBSTATION & PROTECTION INTEGRATION
High-voltage interconnection demands seamless utility coordination. We engineer preliminary and detailed substation interconnect packages up to 345kV, including three-line diagrams, relay settings, CT/PT sizing, and dual-primary protection schemes that meet utility specifications.
CAPABILITY // HARMONICS, FLICKER & TRV STUDIES
Ensure full IEEE 519 compliance and avoid damaging resonance. We perform detailed harmonic distortion calculations, voltage flicker evaluations, and Transient Recovery Voltage (TRV) assessments for high-voltage circuit breakers.
CAPABILITY // NERC RELIABILITY STANDARDS ALIGNMENT
Maintain compliance from design through COD. We deliver technical data verification, generator testing support, and modeling documentation satisfying NERC MOD-025/026/027, PRC-019/024, and FAC-002 requirements.
Engineering Stack & Simulation Platforms
TOOL BADGE // PSS®E
Transmission system power flow, fault analysis, and dynamic contingency simulation.
TOOL BADGE // PSCAD / EMTDC
Electromagnetic transient modeling for weak grids, IBRs, and fast switching phenomena.
TOOL BADGE // ETAP
Industrial and utility power system modeling, load flow, arc flash, and protection coordination.
TOOL BADGE // ASPEN ONELINER
Relay coordination, short-circuit calculations, and wide-area protection analysis.
TOOL BADGE // CYMCAP
High-voltage underground cable ampacity and thermal collector trench calculations.
TOOL BADGE // MATLAB / SIMULINK
Custom inverter controller modeling, algorithmic analysis, and hardware-in-the-loop preparation.
Frequently Asked Questions
Eliminate Interconnection Blind Spots Before the Utility Does.
Whether you are scouting new points of interconnection or reviewing a disputed System Impact Study, our high-voltage engineers provide the analytical backing you need.