TST Series

Altitude-Tracking for Northern Climates

The TST Series is a ground-mounted, storm-hardened solar tracker designed specifically to adjust to the sun's altitude throughout the day. While conventional single-axis trackers follow the sun east-to-west, the TST adjusts tilt angle to match the sun's height in the sky — making it uniquely effective at higher latitudes where the angle of incidence changes dramatically between seasons.

Altitude Tracking

Adjusts panel tilt to match the sun's altitude, capturing energy that fixed-tilt and horizontal trackers miss at higher latitudes.

Storm-Hardened

Same closed-form tubular construction and 150+ mph wind rating as all SEMS products. Built to survive and keep generating.

Optimized for 35°N+

Purpose-built for latitudes above 35°N where seasonal variation in sun altitude makes tilt tracking most valuable.

Interactive Tool

Design Your Solar Array in Minutes

Use our visual Array Configurator to drag-and-drop panel sections, auto-generate a Bill of Materials, and export everything you need for procurement.

Launch Configurator

Drag & Drop Builder

Visually assemble your array layout with an intuitive touch-friendly interface

Auto Bill of Materials

Instantly generate a complete BOM with quantities, part numbers, and specs

Export & Share

Download CSV files, print summaries, or copy specs directly to your clipboard

Avans Rac Series

Utilitas Trac Series

Ground Mount

Rooftop Systems

Tracker Systems

Storm Hardened

Engineering Cut Sheets

Array Configurator

Utility Scale

Commercial

Agricultural

Resources

Support Services

About SEMS

Engineering

Careers

Project Finance

Affiliate Program

Client Portal