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EnergyPlus models heating, cooling, lighting, ventilating, and other energy flows as well as water in buildings. While originally based on the most popular features and capabilities of BLAST and DOE-2, EnergyPlus includes many innovative simulation capabilities such as time steps of less than an hour, modular systems and plant integrated with heat balance-based zone simulation, multizone air flow, thermal comfort, water use, natural ventilation, and photovoltaic systems.
EnergyPlus is a stand-alone simulation program without a 'user friendly' graphical interface. EnergyPlus reads input and writes output as text files. A number of graphical interfaces are available or under development. Want to try an EnergyPlus simulation without downloading EnergyPlus? Try the EnergyPlus Example File Generator.
Brief comparison of EnergyPlus with its predecessor programs, DOE-2.1E and BLAST. (PDF 254 KB) Download Adobe Reader.
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Awards presented to EnergyPlus in the last few years. |
Hourly weather data from around the world is continuously collected and stored in this database. |
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A flexible curriculum is available to professors teaching
courses on energy simulation and using EnergyPlus. |
Looking for a consultant to perform EnergyPlus simulations? LBNL maintains an up-to-date list of
EnergyPlus consultants. |
Forgot/lost or didn't receive a password?
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