Substation Design

Substation Design

Substation Design

We’ve helped design hundreds of projects small to large, from 2.4 kV distribution substations to 345 kV bulk transmission facilities.

Our substation design services are many and varied, from site layout for grading and drainage to commissioning services to applications of owner standards, computer designs, prefabricated buildings and packaged control houses stations.

We can do it all. We’ll provide the engineer/procure/construct (EPC) services. You can sit back and trust the project will be completed on time, on budget and without complication.

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

Recloser Upgrade Program

Commonwealth Associates, Inc. was hired by Northern Indiana Public Service Company (NIPSCO) to provide engineering design services for the replacement of 206 obsolete oil and vacuum reclosers. The program was…

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

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…

Ninth & Central Substation – Distribution Rebuild

Commonwealth Associates, Inc. was hired by Avista Utilities (Avista) to design the replacement of the distribution portion of the Ninth & Central Substation due to its age, condition, and inability…

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