I started working as an HVAC design engineer in 1979 and calculated HVAC loads with a calculator, a form on a piece of paper, and a Carrier HVAC Loads manual.  A couple of years later I sat in front of a Radio Shack TRS-80 computer (with 16K of memory) running a Carrier load program to accomplish the same task.  A few years later I found my self running BLAST on a desktop computer starting in the mid 1980's.  After a nearly 20 year hiatus from HVAC design engineering I have only recently become aware of EnergyPlus and all that it encompasses.  Sometimes I find it useful to create custom tools that work with applications and their outputs as a way of learning the application more rapidly and this is the case with the PEC-EnergyPlus-Toolbox which I am currently developing.  The purpose of the PEC-EnergyPlus-Toolbox is to allow for easy analysis of EnergyPlus output files using a lightweight standalone windows application, at least that's how it's starting out.  Download it with no strings attached and try it if you like.

If you are wondering what EnergyPlus™ is, it is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption—for heating, cooling, ventilation, lighting and plug and process loads—and water use in buildings.  Refer to the EnergyPlus website for more information.