Crosschecking energy analysis procedures and standardizing weather input

The Task Group on Energy Requirements for Heating and Cooling of Buildings was charged with the development of procedures for hour-by-hour computer-based methods of calculating building cooling and heating loads and yearly energy usage. In the development process it became necessary to create a procedure for determining the weather data to be input to the final calculation method. In addition, existing computer programs, having the same function (calculation of yearly building energy usage), were compared with each other and with measured test results.