Electric Transmission and Substations

As the electric system gets pushed to its limit to deliver more power, our clients seek creative solutions to optimize their assets and better provide for their customers. CHA's experts have decades of experience planning, designing, and permitting electrical power delivery infrastructure, including overhead and underground transmission lines and substations. We've designed hundreds of transmission, distribution, and customer-owned substations and switching stations (15 kV up to 300 MVA transmission stations). We've also designed mobile transformers and substations up to 25 MVA and 161 kV. Every substation is designed to meet your particular electrical and environmental requirements.

Our electric transmission and substation services include:
Conceptual and Preliminary Design Engineering Studies Cost Estimates Construction Inspection Detailed Design PLS-CADD™ Modeling and Design Electrical and System Studies Electrical Engineering and Design Line Ratings Clearances Grounding Underground Cable Design Electrical Equipment Specifications Foundation Engineering and Design Direct Embed and Concrete Foundations Line Routing Varied Terrain Conditions (Underwater, etc.)	Line Upgrade and Retrofit Design Reconductoring Circuits Voltage Rerating OPGW Installation Owner's Engineer Services Onsite Program Management Onsite Project Management Protection, Control, and SCADA Design Right–of–Way Acquisition and Land Services Siting, Licensing, and Permitting Structural Engineering and Analysis Wood and Steel Poles Lattice Towers Framed Structures Station Upgrade and Retrofit Design Equipment Upgrades Station Expansion

Our electric transmission and substation services include:

Conceptual and Preliminary Design
- Engineering Studies
- Cost Estimates
Construction Inspection
Detailed Design
- PLS-CADD™ Modeling and Design
Electrical and System Studies
Electrical Engineering and Design
- Line Ratings
- Clearances
- Grounding
- Underground Cable Design
Electrical Equipment Specifications
Foundation Engineering and Design
- Direct Embed and Concrete Foundations
Line Routing
- Varied Terrain Conditions (Underwater, etc.)

Line Upgrade and Retrofit Design
- Reconductoring Circuits
- Voltage Rerating
- OPGW Installation
Owner's Engineer Services
Onsite Program Management
Onsite Project Management
Protection, Control, and SCADA Design
Right–of–Way Acquisition and Land Services
Siting, Licensing, and Permitting
Structural Engineering and Analysis
- Wood and Steel Poles
- Lattice Towers
- Framed Structures
Station Upgrade and Retrofit Design
- Equipment Upgrades
- Station Expansion

We provide solutions for:

Utilities – Investor Owned and Municipal
Power Generators
Construction Contractors
Developers – Renewable Energy and Industrial
Universities and Colleges

Featured Electric Transmission and Substations Projects:

UMass Memorial Hospital CHP Power Plant

Lake Superior Power - 110 MW CCGT Power Plant

South Substation and Phase I Distribution

Maple Avenue Substation Renewal

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