The Designers
16 Engineers
They turn lines into lifelines. With tools like AutoCAD, Revit, ETAP, PVSyst, and CAD 3D, they translate ambition into design—calculating, modeling, and detailing systems that work the first time.
Who We Are
Learn more about Keentel Engineering.
We’re not just engineers—we’re problem solvers, system thinkers, and quiet revolutionaries helping power the future.
Across the United States, our 51-member electrical engineering team shows up every day to bring certainty to complexity. We’re licensed. We’re seasoned. And we’re divided into three groups, each doing what they do best:
The Grid Whisperers
17 Engineers
These are your PSCAD, PSS®E, and DIgSILENT experts. They speak the language of large-scale power plants and grid dynamics—ensuring your project plays well with the utility and the future.
The Watchdogs
18 Engineers
They live and breathe compliance. From OSHA and NFPA 70 (NEC) to NERC and FERC, they make sure your systems are bulletproof—ready for inspection, audit, and everything in between.
Sonny Patel P.E. EC
IEEE Senior Member · Founder & CEO, Keentel Engineering
In 1995, Sandip (Sonny) R. Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don’t build legacies — action does.
For three decades, he’s shaped the power industry from every side of the table: utility engineer, generator lead, NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, and testing and commissioning lead on equipment up to 765 kV. His career spans nuclear, hydroelectric, conventional generation, renewables, oil and gas, mining, and today’s data centers.
Not just an engineer — a Licensed Electrical Contractor in Florida with an Unlimited EC license. Not just an executive — the founder and CEO of Keentel Engineering, where expertise meets execution. Three decades. Multiple states. Endless impact.
Utility Engineer
Power industry experience
NERC Audit Lead
Compliance and reliability
765 kV
Testing and commissioning
Understand PRC-023-6 for utility-scale BESS: applicability, the 39-month rule, relay loadability, setting criteria, Category 2 IBRs, and audit evidence.
Learn PRC-029-1 compliance requirements for inverter-based resources, including voltage and frequency ride-through, EMT studies, protection settings, and testing.
A technical guide to solar plant electrical testing, commissioning, I-V curves, thermography, insulation testing, cable tests and performance acceptance.
Explore GIS substation engineering, including design, SF6 safety, VFTO, grounding, commissioning, testing, GIS vs AIS, and IEEE/IEC standards.
Learn the correct cable testing sequence before energization, including VLF, AC/DC withstand, sheath testing, partial discharge, tan delta, and standards.
Explore how substation drawing sets are developed, reviewed and controlled through engineering studies, design milestones, QA/QC and final construction release.
Compare grid-forming vs grid-following BESS inverters, control loops, weak-grid stability, protection, compliance, and interconnection study impacts.
Learn MOD-025 and MOD-026 post-COD requirements for generator capability verification, PSS®E and PSCAD model validation, IBR testing, and NERC compliance.
Use this substation inspection checklist to verify QA/QC, grounding, protection, commissioning, documentation, and current IEEE/NETA standards.
