@misc{bibcite_36869,
  author = {Jon Ness and Mary Beth Wigginton},
  title = {Improving Bolted Joint Reliability in Utility- Scale PV: Gaps and Improvements in Tightening Methods, Tools, and Fasteners},
  abstract = {<p>This report evaluates bolted joint reliability in utility-scale solar photovoltaic (PV) mounting structures, where millions of fasteners are used to transfer structural loads and maintain electrical bonding. It examines the widespread reliance on torque-controlled tightening and explains how variability in friction, tool performance, installation practices, and incomplete fastener specifications can lead to inconsistent bolt pretension and joint capacity.</p><p>The report identifies gaps in tightening methods, tool selection, fastener documentation, and field quality control. It discusses recent updates to ANSI/UL 2703 and the forthcoming ASCE/SEI Solar PV Structures Manual of Practice, and outlines both near-term improvement opportunities and longer-term innovations in tool and fastener technology to support more predictable clamp load and improved joint performance at utility scale.</p>},
  year = {2026},
  month = {01/2026},
}