Vagelos Laboratory for Energy Science and Technology Jigsaw Puzzle Vagelos Laboratory for Energy Science and Technology You can count on an energy research center to build a state-of-the-art sustainable steel building! The unique architecture of the University of Pennsylvania's new Vagelos Laboratory for Energy Science and Technology (VLEST) integrates sustainable ideas and energy efficiency, aligning with the research institute's core mission. The building’s form responds to the complex site and incorporates passive, low-energy strategies in its massing and façade design, which are informed by sun path and orientation. Read the rest of the story about this stunning new energy research lab at aisc.org/energyefficient.