Documents the post-occupancy energy performance analysis of Oberlin College's Adam Joseph Lewis Center, an academic building designed to be an energy producer, rather than an energy consumer. Among the building's features are passive solar design, natural ventilation, enhanced thermal envelope, and geothermal heat pumps for heating and cooling. The building also has a roof- integrated photovoltaic (PV) system to allow solar electricity to provide energy to the building. This study evaluated the performance of the building and some of its subsystems over three years in order to improve the initial performance and document lessons learned to improve future low-energy buildings. During the three years of observation, the several problem areas in energy use were corrected. Operational changes and equipment upgrades were made during the second year. The third year was colder than normal, yet by that time the building's energy used dropped 37% from the first year's.
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