Version 4.40 of the E20-II Hourly Analysis Program (HAP) software is available. It has new features that make Leadership in Energy and Environmental Design Energy and Atmosphere (LEED® EA) Credit 1 ...

The E20-II Hourly Analysis Program (HAP) v4.31 has been designed for energy-savings calculation and has been approved by the U.S. Department of Energy for certifying those energy savings. Commercial ...