ON THE USE OF INTEGRATED DAYLIGHTING AND ENERGY SIMULATIONS TO DRIVE THE DESIGN OF A LARGE NET-ZERO ENERGY OFFICE BUILDING
Rob Guglielmetti, Shanti Pless, Paul A . Torcellini
This paper seeks to illustrate the challenges of integrating rigorous daylight and electric lighting simulation data with whole-building energy models, and defends the need for such integration in order to achieve aggressive energy savings in building designs. Through a case study example, we examine the ways daylighting – and daylighting simulation – drove the design of a large net-zero energy project. In this paper, the author will give a detailed review of the daylighting and electric lighting design process for the National Renewable Energy Laboratory’s Research Support Facility (RSF)1, a 220,000 ft2 net-zero energy project the author worked on as a daylighting consultant. A review of the issues involved in simulating and validating the daylighting performance of the RSF will be detailed, including daylighting simulation, electric lighting control response, and integration of Radiance simulation data into the building energy model. Daylighting was a key strategy in reaching the contractual energy use goals for the RSF project; the building’s program, layout, orientation and interior/furniture design were all influenced by the daylighting design, and simulation was critical in ensuring these many design components worked together in an integrated fashion, and would perform as required to meet a very aggressive energy performance goal, as expressed in a target energy use intensity (EUI).
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