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TRNSYS is a simulation program primarily used in the fields of renewable energy engineering and building simulation for passive as well as active solar design. TRNSYS is a commercial software package developed at the University of Wisconsin.
Solmetric Corporation, based in Sebastopol, California, is a manufacturer of solar test and measurement equipment and developer of solar design software.It was founded in 2005 and is best known for its shade measurement tool, the SunEye, and its I-V curve tracer, the PV Analyzer.
The lab provides publications on solar resources and manuals on different applications of solar technology, as well as a number of different solar resource models and tools. The lab also makes available a number of different solar resource data sets in its Renewable Resource Data Center. [31]
The solar envelope presents the maximum heights of buildings that do not violate the solar access of any existing buildings during a given period of the year. The solar envelope is a way to assure urban solar access for both energy and life quality. [4] The concept of solar envelope was first developed in 1969.
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices. [1]
A renewable portfolio standard (RPS) is a regulation that requires the increased production of energy from renewable energy sources, such as wind, solar, biomass, and geothermal. Other common names for the same concept include Renewable Electricity Standard (RES) at the United States federal level and Renewables Obligation in the UK.
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A double envelope house is a passive solar house design which collects solar energy in a solarium and passively allows the warm air to circulate around the house between two sets of walls, a double building envelope. This design is from 1975 by Lee Porter Butler in the United States.