Substation and Transmission Structural Solutions (STSS)

Specialist Structural Engineering for Power Delivery Infrastructure

STSS is a specialized structural engineering firm providing comprehensive design, analysis, and field support exclusively for substation and transmission infrastructure. We are the critical partner for EPC contractors, energy developers, and utilities who require absolute certainty in the structural integrity of their power delivery assets. Our expertise provides the definitive link between complex electrical requirements, geotechnical conditions, and structural performance, ensuring the stability, resilience, and constructability of your project from the ground up.

A Full Spectrum of Substation & Transmission Solutions

Our capabilities encompass the entire structural scope of substation and transmission foundation projects. We deliver optimized and compliant designs for everything from core substation steel—including deadends, gantries, and equipment supports per ASCE 113—to the intricate engineering of bus layouts and short-circuit force bracing. We manage the complete system, including insulator verification, conductor engineering, and the design of control house foundations, cable trenches, and physical security barriers. This holistic approach ensures every component works in concert, mitigating risk and streamlining project execution.

Advanced Geotechnical and Foundation Engineering

A structure is only as strong as its foundation. STSS possesses deep expertise in designing the full range of foundation systems required for challenging power projects. Whether your site requires conventional spread footings, drilled shafts in difficult soil profiles, or helical piles for constrained brownfield sites, our team provides the optimal solution. We are proficient in the analysis and design of direct-embedded structures, pile groups, and rock anchors, with a rigorous approach to geotechnical program review, including liquefaction and settlement analysis. Our designs account for high groundwater, frost, and other environmental factors, ensuring long-term stability.

Addressing Modern Demands: Data Centers, Resilience & Compliance

The demands on the grid are increasing in complexity. STSS is at the forefront of designing for these modern challenges, with a special focus on data center and AI-campus interconnections. We engineer structures to handle the high-fault-duty currents of these facilities and develop fast-track, modular foundation systems for rapid deployment. Our expertise extends to critical resilience engineering, including seismic qualification per IEEE 693, wind/ice hardening for extreme weather, and the design of blast and fire separation walls. We provide clients with the robust infrastructure needed to ensure maximum uptime and system security.

Collaborative Partnership from Concept to Commissioning

We are more than a design vendor; we are a dedicated project partner. STSS thrives in collaborative environments, providing Owner's Engineer support, third-party peer reviews, and developing utility standards. Our advanced analysis, modeling, and detailing capabilities—using tools like RISA, STAAD, LPILE, and TEKLA—enable us to deliver clear, actionable designs and facilitate seamless BIM integration. We support our partners through the entire construction lifecycle with shop drawing review, RFI support, and expert field engineering, ensuring the design intent is realized efficiently and correctly.

The Bedrock of Your Project's Success

Our commitment is to provide engineered confidence. We understand that a properly designed substation or transmission foundation is the bedrock upon which the success, safety, and profitability of a project are built. Through deep technical excellence and a singular focus on the practical challenges of power infrastructure, we deliver reliable, efficient, and rigorously designed structural systems that provide a solid base for your vision and a trusted asset for decades to come.