In Depth Case Studies
Photo credit: Glenborough, LLC
Built in 1990, the Aventine is a Class A office building designed by Michael Graves, one of the famous "New York Five" architects dedicated to modernism. The Aventine is located in La Jolla, California and consists of an eleven-story office tower, an adjacent six-story office building, and a three-level underground parking garage.
The Aventine is certified LEED Existing Building Platinum and has an Energy Star rating of 100, the highest possible, and uses just 23 kBtus/sf, 75% less than the national average for offices. Retrofits addressed high-energy loads by replacing compressors and installing chillers, lighting and controls.
A combination of strategies were used to reduce energy use at Aventine from a pre-retrofit level of 62 kBtu/sqft to a post retrofit energy use intensity of only 23 kBtu/sqft. Some of the key elements contributing to this 63% reduction in energy use include:
Owner & Occupancy
Commissioning, Performance measurement and verification, Operations and maintenance, Massing and orientation, Airtightness, HVAC, Lighting control and daylight harvesting, Efficient lighting, Daylighting
Case Studies Database provided by the U.S. Department of Energy's