Alpha+ Shared Rail Technology

Save 25% off rail costs compared to traditional layouts. And the savings only get better.


MS Design Tool

MS Design Tool provides Bill of Materials and structural calculations for you project in
20 countries and in 5 languages. Design Alpha+ and Tau+ pitched roof designs
in minutes. Layout multiple arrays around obstacles, choose rails, component
finish, and customize to your project requirements.


Ultra-fast Clickstone technology

The Clickstone works on a simple principle: click into the rail,
position, tighten, done. This results in fast assembly, precise
positioning and increased security during installation. The
Clickstone’s symmetrical design lets the installer insert the
Clickstone into the rail more easily, adjust it more accurately
and secure it more quickly.


On-roof Systems

Alpha+ and Tau+

The base for solar power


Mounting Systems, Inc., an ISO-certified company, is one of the largest manufacturers of racking systems for photovoltaic and solar-thermal power plants worldwide.


Flat Roof Systems



In Roof Systems

Kappa and Theta


Ground Mount Systems

Sigma Steel, Sigma I, Sigma I XL+ and Sigma II+

Alpha+ ETL Listing UL 2703, Edition 1

Mounting Systems’ Alpha+ on-roof system is now ETL listed to UL 2703, Edition 1.

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Alpha+ UL 1703 Fire Rating

Mounting Systems’ Alpha+ on-roof system is now ETL tested and approved to the new UL 1703 standard as a Class A Fire Rated system for Type 1 and Type 2 PV modules.

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Sigma Steel ETL Listed to UL 2703

Mounting Systems’ Sigma Steel ground mount system is now ETL listed to UL Standard 2703.

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