NREL's sustainability vision is to build a laboratory of the future that is committed to sustainability, which is built on a framework of economic viability, environmental health, and public responsibility over the long term through appropriate investment decisions and operating practices.This report shows NREL’s progress in making sustainability an integral part of its corporate culture and providing a global sustainability model
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At the time this Wall Street Journal article was published, the National Renewable Energy Laboratory was midway through construction of a $64 million project to be the greenest office building in the nation. This article explores efforts by architects and engineers who spent hundreds of hours calculating the energy use of every aspect of the building, from the elevator to the exit signs.
A net zero-energy community (ZEC) is one that has greatly reduced energy needs through efficiency gains such that the balance of energy for vehicles, thermal, and electrical energy within the community is met by renewable energy. Past work resulted in a common zero-energy building (ZEB) definition system of “zero energy” and a classification system for ZEBs based on the renewable energy sources used by a building. This paper begins with a focus solely on buildings and expands the concept to define a zero-energy community, applying the ZEB hierarchical renewable classification system to the concept of community. A community that offsets all of its energy use from renewables available within the community’s built environment and unusable brownfield sites is at the top of the ZEC classification system at a ZEC of A. (A brownfield site is where the redevelopment or reuse may be complicated by the presence or potential presence of a hazardous substance, pollutant or contaminant.) A community that achieves a ZEC definition primarily through the purchase of new off-site, Renewable Energy Certificates (RECs) is placed at the lowest end of the ZEC classification but is still considered a good achievement.