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Torquing – The Solar Installation Mystery!

Loosely speaking, torque is a measure of the turning force on an object such as a bolt – and as Dan Shugar, CEO of Nextracker stated : “Torquing is by nature inexact because of the many factors that can affect friction – from surface texture to debris, rust and humidity”*. In this article I will try to shed some light into the mysterious world of torquing in the solar installation world. 

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Press release – 4 MW Solar Project in Livermore, CA

Mounting Systems Integrates Sigma I Steel Ground Mounts into a 4 MW Photovoltaic Project

June 8, 2016

West Sacramento, CA – In light of the recent completion of a 4 MW PV project in Livermore, CA, Mounting Systems is proud to announce its contribution to the success of this solar development at the Lawrence Livermore National Laboratory (LLNL). Mounting Systems supplied its signature Sigma I Steel ground mounts, which utilizes a new, proprietary cold-rolled steel with Clickstone technology for speed and ease of installation. With ISO-9001 and UL 2703 certification, contractors could depend on the efficiency and reliability of ground mount installations through Mounting System’s services. Read more

10 Things to improve a Solar Ground-Mount Project

As photovoltaic (PV) projects have evolved over time, the industry has focused on reducing costs to increase the adoption of solar power. This reduction has been dramatic, and the corresponding increase in solar PV projects is exciting, with new records in project size and overall deployments announced nearly every year. As solar project costs drop so, too, have racking costs through the utilization of improved engineering analysis, appropriate and efficient material selection, and improved manufacturing approaches. Knowing that racking continues to play an integral role in solar installations, savvy project integrators are paying more attention than ever to products and solutions available to reduce costs and create job site efficiencies. To help end-users optimize PV installations, the following breaks down the project development and construction process, from start to finish.

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Foundations for Ground Mounted Solar Installations

Ground-mounted systems are probably the simplest way to install solar on a larger scale compared to other types of installations such as roofs or parking structures. These systems can be held down by a variety of foundations, including concrete footings, pile driven posts, piers, metal earth screws or with ballasted holding trays.

One size fits all ?

Foundation systems need to correspond to the existing site considerations and soil  static conditions according to engineering calculations and  building codes. The one size fits all approach will not lead to the most cost and resource efficient results. Here are some key factors that will help to determine the foundation type:

  • Tilt angle and tracking characteristics of the solar power system.
  • Local design wind speeds and snow loads (If applicable) where the solar power system is to be installed.
  • Support and racking configuration.
  • Overall solar module system size and weight.
  • Local design codes and project requirements.
  • Soil characteristics relative to friction, sliding, consolidation, slope stability, salinity, etc.
  • Brownfield or landfill

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