EnergyPlus v9.2

EnergyPlus is a physics-based timestep modeling engine, which focuses on energy efficiency of new and retrofit buildings, modelling energy and water use in buildings. It provides detailed modeling on the component/system level. EnergyPlus is designed for engineers, architects and researchers.
Modeling the performance of a building with EnergyPlus enables building professionals to optimize the building design to use less energy and water. EnergyPlus models heating, cooling, lighting, ventilation, other energy flows, and water use. EnergyPlus includes many innovative simulation capabilities: time-steps 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.