Variability Dynamics for the Six LVVWD PV Projects - OSTI. GOV LVVWD PV Projects August 12, 2009 Joshua Stein Ph D Principle Member of Technical Staff Sandia National Laboratories Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000 SAND2009-6258P