Unlock Precision Grounding & EMI Solutions with CDEGS SW & Keentel Engineering

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April 29, 2025 | Blog

Software interface showing cable design data, 3D simulations of power cables, and a cross-section of a high-voltage cable.

At Keentel Engineering, we know every reliable power system starts at ground level—literally. That’s why our licensed engineers deliver advanced grounding, earthing, EMI mitigation, and electromagnetic-field (EMF) analysis with the world-renowned CDEGS® software suite.


Engineers rely on CDEGS ' grounding software to design safe earthing systems, evaluate fault currents, and ensure compliance with industry standards.


Since its first validation in 1974, CDEGS has become the industry standard for CDEGS grounding design, enabling accurate modeling of grounding grids, EMI mitigation, and lightning surge analysis.


Keentel Engineering couples that toolset with 30 + years of HV/MV project experience to give your substation, transmission line, renewable plant, pipeline, or industrial facility field-proven electrical safety.

Why CDEGS® matters

  • Accurate soil & grid modelling – multilayer or exponential soil resistivity, complex conductor networks
  • Fault-current distribution & GPR – touch/step voltage per IEEE 80, IEC 61936
  • Lightning & switching-surge analysis – high-frequency transients, shielding optimisation
  • EMI / EMF assessment – inductive, capacitive, conductive coupling on pipelines, rail & telecoms
  • Environmental impact – corona, RI/AN, EMF reports for permitting and regulatory compliance


When millivolts—and project dollars—count, CDEGS delivers laboratory-validated results trusted by utilities, energy developers, and regulators worldwide.


These capabilities make it one of the most trusted tools for cdegs earthing software applications in high-voltage engineering.


Understand system-level analysis in our power system studies and grid integration guide.

CDEGS-Driven Engineering Services at Keentel

Our team delivers advanced cdegs earthing and grounding solutions for substations, transmission systems, and industrial infrastructure.

1 Grounding & Earthing System Design

  • Field soil-resistivity testing (Wenner, Schlumberger, Dipole-Dipole)
  • IEEE 80 / IEC-compliant grounding-grid sizing and optimisation
  • Ground-potential-rise (GPR), touch- and step-voltage assessments

2 Electromagnetic-Interference (EMI) Mitigation

  • AC / DC interference studies for pipelines, railways, telecom cables
  • Right-of-way impact analysis with inductive- and capacitive-coupling models
  • Mitigation layouts and material specs to meet utility limits

3 Lightning Protection & Surge Analysis

  • Shield-wire and mast optimisation for substations and lines
  • Switching-surge and high-/low-frequency transient simulations
  • EMF impact evaluation of direct and indirect lightning strikes

4 Line & Cable Parameter Computation

  • Self / mutual impedance, admittance and capacitance (overhead, UG, pipe-enclosed)
  • Detailed MultiLines® models for fault-current split and relay studies
  • Support for complex meshed or hybrid AC/DC networks

5 Electrical Environmental Impact Assessments

  • Corona discharge, radio-interference and audible-noise predictions
  • EMF exposure reports for public-health and permitting compliance
  • Complete documentation for state and federal environmental filings

From routine grounding checks to multi-frequency surge investigations, Keentel couples CDEGS precision with PE-sealed engineering to deliver actionable, regulator-ready solutions.

Need system-wide load-flow or stability studies? See our Power-System Studies page.

CDEGS modules we put to work

Keentel Engineering taps the full SES-CDEGS toolbox to match each project’s scope:

  • Grounding: AutoGround®, MultiGround®, MultiGround+®
  • Conductor parameters: MultiLines®, MultiLines+® (overhead, underground, pipe-enclosed)
  • EMF & EMI studies: MultiFields®, MultiFields+®
  • Environmental & lightning: SESEnviro® (RI/AN/EMF), SESShield® (shielding)
  • Advanced analysis: AutoGrid Pro®, SESTLC®, HIFREQ, TRALIN, SPLITS, FFTSES

From a straightforward grounding check to a multi-frequency surge-transient investigation, Keentel blends science, software and PE-sealed engineering into actionable, compliant, and safety-focused solutions.

CDEGS-Powered Engineering — Frequently Asked Questions

1 | What is CDEGS?

A field-validated software suite—Current Distribution, Electromagnetic Fields, Grounding & Soil‐Structure Analysis—used for grounding-grid design, EMF/EMI studies, lightning-surge modelling, soil-resistivity analysis and fault-current distribution.

2 | How long has CDEGS been trusted?

Since 1974. Utilities, EPCs and regulators worldwide rely on its peer-reviewed accuracy.

3 | Which services does Keentel deliver with CDEGS?

Grounding/earthing optimisation • EMF assessments • EMI mitigation
• Lightning-shielding & transient studies • Line/cable parameter modelling • Environmental EMF / corona compliance for transmission projects.

4 | Which CDEGS modules do you use?

AutoGround®, MultiGround+®, MultiLines+®, MultiFields+®, SESEnviro®, SESShield®, plus HIFREQ, TRALIN, SPLITS, FFTSES.

5 | Can CDEGS model complex soils?

Yes—uniform, two-layer, multi-layer and exponential profiles, even in dam forebay/tailbay zones.

6 | How are EMI studies performed?

CDEGS quantifies inductive, capacitive and conductive coupling between energized lines and co-located pipelines, rail or telecom cables, then designs mitigation.

7 | Does it handle lightning and switching surges?

Absolutely—MultiFields+ and AutoTransient simulate high-frequency disturbances on networks and grounding systems.

8 | How accurate are CDEGS results?

Validated by field measurements, scale models and independent analytical checks—one of the most proven tools in the industry.

9 | Do you model fault-current distribution?

Yes. We calculate current split among grids, overhead ground wires, neutrals, sheaths and pipelines for complete fault studies.

10 | Which industries benefit?

Transmission & distribution utilities 
• Solar, wind, BESS developers
• Oil & gas pipelines 
• Rail transit 
• Telecom & data-centre campuses 
• Heavy industry.

11 | What touch-/step-voltage analyses can you provide?

Touch, step and ground-potential-rise (GPR) reports compliant with IEEE 80, IEC 61936 or bespoke specs.

12 | Can you help with environmental compliance?

Yes—SESEnviro® studies for radio interference, audible noise, corona loss and EMF exposure.

13 | Does CDEGS integrate with CAD?

DXF import/export streamlines model build; Keentel leverages this for rapid, precise layouts.

14 | How clear are the visuals and reports?

3-D views via SESSystemViewer / GRServer plus narrative, regulator-ready reports.

15 | Do you provide post-study support?

Full hand-off: we walk clients through results, design tweaks and compliance submissions.

Why choose Keentel Engineering

30 + years of power-system know-how – grounding, HV/MV substations, transmission & renewables

Licensed P.E. team – multi-state credentials for design and sign-off

CDEGS precision – field-validated modelling trusted by utilities worldwide

Standards-ready deliverables – reports that satisfy IEEE, NESC, IEC & utility specs the first time

Client-centric workflow – clear updates, firm schedules and on-budget delivery

Ready for CDEGS-grade precision?

A smiling man with glasses and a beard wearing a blue blazer stands in front of server racks in a data center.

About the Author:

Sandip "Sonny" R. Patel, P.E.

IEEE Senior Member · Founder & CEO, Keentel Engineering

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

For three decades, he has worked the power industry from every side of the table: 16 years as a utility engineer at Exelon/Commonwealth Edison; generation leadership across hydroelectric, industrial steam turbine, and a 9 GW renewable fleet; NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, auditing some of the nation's largest utilities; and testing and commissioning lead on equipment up to 765 kV — the very top of the North American grid.

Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.His experience spans nuclear, hydro, conventional generation, renewables, oil and gas, mining — and today's data centers, where he is authoring a three-book series on data center design. He is a Licensed Professional Engineer in six states and a Licensed Electrical Contractor in Florida (Unlimited EC) — he doesn't just design the work; he's qualified to stand behind its execution.Today, as Founder and CEO of Keentel Engineering, Sonny leads 51 engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering

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Let's Discuss Your Project

Let's book a call to discuss your electrical engineering project that we can help you with.

Man in a blazer and open shirt, looking at the camera, against a blurred background.

About the Author:

Sandip "Sonny" R. Patel, P.E.

IEEE Senior Member · Founder & CEO, Keentel Engineering

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

For three decades, he has worked the power industry from every side of the table: 16 years as a utility engineer at Exelon/Commonwealth Edison; generation leadership across hydroelectric, industrial steam turbine, and a 9 GW renewable fleet; NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, auditing some of the nation's largest utilities; and testing and commissioning lead on equipment up to 765 kV — the very top of the North American grid.Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.His experience spans nuclear, hydro, conventional generation, renewables, oil and gas, mining — and today's data centers, where he is authoring a three-book series on data center design. He is a Licensed Professional Engineer in six states and a Licensed Electrical Contractor in Florida (Unlimited EC) — he doesn't just design the work; he's qualified to stand behind its execution.Today, as Founder and CEO of Keentel Engineering, Sonny leads 51 engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering

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