Final Report Design of Low-Cost Structures for Photovoltaic Arrays Volume 2 of 2:Technical Studies and Appendixes

摘要

Bechtel National, Inc. has conducted a study of low-cost support structures for flat photovoltaic panels set at a fixed angle to the ground. This work began with a survey of solar system manufacturers. The results showed a diverse approach to the design of support structures and a lack of systematic design criteria.nBetailed civil-structural design criteria were developed for this work. These criteria identified loadings for 1.) normal operating conditions and 2.) extreme environmental conditions.nThe study results include detailed designs for eight array support struc-tures and foundations for flat plate arrays using R-foot wide panels with foundations spaced 20 feet apart along the rows in the east-west direction. Other designs were produced for different key parameters so that cost varia¬tions could be evaluated.