This case study describes the National Renewable Energy Laboratory's (NREL) data center as a showcase of energy efficiency. Most of what NREL has done can be replicated by clients; however, two design approaches are climate-dependent: near-full reliance on outside air for cooling, and photovoltaic arrays for power.
Advanced SearchYour search resulted in 21 resources
This case study details the design and operations of the National Renewable Energy Laboratory (NREL) Research Support Facility data center and its contributions to energy efficiency.
An energy-efficient data center includes targets for its power usage effectiveness (<1.2) and energy resource efficiency (< 0.9). It should be designed with hot isle–cold isle separation, use free cooling (economizer) and evaporative cooling when available, minimize fan energy, and use the most energy-efficient equipment possible.
The rooftop unit (RTU) Field Evaluation Checklist is intended to help identify damage, dysfunction, or degradation that requires more than routine maintenance. The checklist should be used to conduct a visual-based field evaluation to further refine the preliminary analysis.
The rooftop unit inventory spreadsheet can be used to gather basic RTU information, such as number, size, age, and general condition. The detailed fields in the spreadsheet can be used to gather additional information, such as controls, usage patterns, and features for additional analysis of the RTUs identified for retrofit, replacement, or further analysis.
The rooftop unit (RTU) decision tree can be used for preliminary screening for replacement of RTU units with more efficient units. This decision tree organizes RTUs into bins for “retrofit,” “replacement,” “no action,” or “needs further analysis.”
A case study of the overview, process, and results of the re-tuning that was conducted in a building in Arlington, Virginia by Vornado Realty Trust in October 2012. Re-tuning provided the facilities management team with the ability to identify and understand building scheduling opportunities that drove significant, low-cost energy savings. Five measures were conducted, many of which pertained to the HVAC system.
Tower Companies, a DC based owner of large multi-tenant buildings and Better Buildings Challenge partner, engaged in an aggressive program to take measured data from their buildings and turn it into real energy savings. This case study, completed by Tower in partnership with the National Resources Defense Council (NRDC) describes outcomes at three properties. The case study was highlighted on a Better Buildings Webinar on February 5, 2014.
This case study describes a successful zero energy school project in Utah.
This case study details the successful achievement of Passive House performance and zero energy at the Friends School of Portland.