Equipment services
Transformer installation and service, breaker replacements and apparatus work planned around the facility’s operating requirements.
Transformer and breaker services
Electrical Services
Substation construction and electrical services.
From clearing and site work to testing and commissioning, Cassidy can build an entire substation in house. Our technical teams also support equipment work, expansions and individual service needs.
Complete in-house construction
From site preparation to energization.
Bring site work, foundations, structural and electrical construction, and commissioning together under one contractor. Our construction crews and electrical specialists coordinate the interfaces between each phase.
At existing substations, our crews replace foundations and equipment, build expansions, and test protection and control systems.
Discuss your substation projectComplete substation construction
From trees
to keys.
One contractor for the full construction scope. Cassidy brings site work, foundations, electrical construction and commissioning together in house.
Explore construction scopePhotographs show work across Cassidy projects.
01Clearing & site work
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Clear and prepare the site, establish grades and coordinate the construction sequence.
Grading and site preparation on a substation project in progress.
02Foundations
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Install piers, footings, slabs and equipment pads, coordinating anchor bolts, conduit and grounding.
Crew finishing a concrete equipment foundation.
03Electrical construction
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Set structures and equipment, install bus and complete grounding, conduit, cable and terminations.
Electrical structures and equipment at a Texas solar substation.
04Testing & commissioning
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Test apparatus, protective relays, control schemes and SCADA, with support through energization.
Testing and commissioning personnel reviewing drawings in a substation control house.
Electrical field services
Support for operating facilities.
Testing & commissioning
Technical knowledge in protective relays, protection and control schemes, apparatus and SCADA, for Cassidy-built facilities and work by other contractors.
Testing and commissioningExpansions & additions
Foundation, structural and electrical scopes for additions to existing substations, with coordination of work boundaries and scheduled outages.
Substation constructionFoundations and electrical construction
Coordinate the work below and above grade.
Equipment foundations, anchor bolts, conduit and grounding must line up with the structural and electrical installation. Cassidy’s in-house teams coordinate those interfaces throughout construction.
Substation foundationsProject experience
Turnkey construction in the field.
Electrical Services
Complete solar substation construction
Texas
Complete in-house substation construction for a solar project, from clearing and site work through foundations, electrical construction, testing and commissioning.
View projectData centers
Electrical work for data center campuses.
Cassidy provides campus substation and interconnection construction, medium- and low-voltage installation, and testing and commissioning. Engage our crews for an individual electrical scope or coordinated construction and testing.
Substations and interconnection
New substations and expansions, including foundations, transformers, breakers, switchgear and commissioning through energization.
Medium- and low-voltage installation
Cable installation and terminations, conduit, tray, duct banks, grounding, cable fireproofing and firestopping.
Testing and commissioning
Cable acceptance testing and fault location, apparatus and protective relay testing, ground grid testing, DC systems and SCADA checkout.
Work with Cassidy
Discuss your substation scope.
Share the site, construction requirements, schedule and any operating or outage constraints with our Electrical Services team.