Curtis W. Dodd, Sandia Laboratories Energy Report, October 1977
This report contains the results of lightning protection studies for Vertical Axis Wind Turbines. The methodology is established for determining the chances for a lightning strike at a VAWT site. Proposed designs for lightning protection systems are described. These designs include an insulator design a brush by-pass design, a cone of protection, lightning elimination device, and a concentric tower protection system. The work also describes an effective grounding system.