Protection & Controls

Protection & Controls

Protection & Controls

A reliable protection & control (P&C) system is an absolute necessity. System faults must be isolated from the system in a dependable and secure manner for public safety and to minimize equipment damage and loss of load. Implementing a reliable P&C system comes with a cost, but to use the insurance analogy, there’s a balance to obtaining adequate coverage to protect the asset. Our engineers can expertly evaluate your requirements and standards to provide a recommendation for the most cost effective solution. For P&C of transmission lines, rotating machines, substations, distribution systems and all points in between, we have the experience.

This service was applied to the following solution(s):

Garden Peninsula Wind Farm 34.5/138 kV Substation and Transmission Line Design

Heritage Sustainable Energy hired Windemuller, Inc., to assist with their $75M Garden Wind project, located in Delta and Schoolcraft counties in Michigan’s Upper Peninsula. Commonwealth designed a new 13-mile-long 138…

System Impact Study / Transient Stability Analysis

Wolverine Power Supply Cooperative (WPSC) contracted with Commonwealth to provide a system impact study for the interconnection of a third-party generator (IPP) near Kalkaska, Michigan. The IPP intended to generate…

345/115/23 kV Substation Rebuild

Commonwealth provided engineering design, material bid packages, and construction bid packages for rebuilding a bulk power substation. The substation consisted of a new 345 kV switchyard for a tapped line,…

We are committed, both as a firm, and as individuals to influencing and shaping the secure energy future.

Gary Bernstein, P.E.
Vice President & Chief Marketing Officer

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Planning & Studies

Commonwealth experts can help you have an optimal plan for future energy sources and actions to take to keep your energy sources updated. read more


The list of projects is distinguished and varied, with each project having a unique solution. read more