A Coordinated Electric System Interconnection Review—the utility’s deep-dive on technical and cost impacts of your project.

Whether you're retrofitting or building a substation, following a well-defined process is essential to ensure electrical and operational integrity. The substation design process involves engineering, planning, and construction elements that directly impact system reliability, safety, and future scalability.

You need experts like Keentel Engineering by your side. We bring over 30 years of experience in electrical substation design and layout for utilities, developers, and IPPs. Our team ensures every project aligns with best practices in substation planning, energy efficiency, and regulatory compliance.

Substation planning is a critical first step that ensures efficient layout, safety, and long-term scalability of power infrastructure.

The first step in substation engineering design is identifying the appropriate switching station configuration. While switching stations do not transform voltage, they are crucial for routing power safely and enabling grid flexibility.

At this stage, our engineers assess the best type of bus (e.g., ring bus or breaker-and-a-half), control systems, and disconnect switches. Choosing the right switching station directly influences future substation expansion design and maintenance capability.

Effective substation expansion design allows utilities to scale capacity without major system disruptions.

Q1: What is the first step in substation design?
Selecting the switching station and defining bus configuration based on transmission system needs.
Q2: What are the key components in substation planning?
Layout plan, protection coordination, SCADA integration, civil permits, and budget alignment.
Q3: How long does substation design take?
Typically 4–9 months depending on complexity, permitting, and grid interconnection needs.
Q4: What’s included in the electrical substation construction package?
Schematics, grounding plan, control house layout, equipment specs, compliance documentation.
Q5: Does Keentel offer substation EPC support?
Yes—we support end-to-end substation EPC design build projects with in-house design and QA/QC.

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

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

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