eToolLCD V2 introduced some pretty neat functionality that allows users to enter formulas or expressions into some fields.  This is particularly useful for building operational energy templates, for example, based on building size or occupancy.  We have used a third party calculation library to enable this functionality, the list of available operators and functions is available here.

We also have a number of variables that relate to the design that can be used in expressions.  The list of these is provided below (with default values that are used in library template calculations before loading into a design):



 Default Value 

OccupancyOccupancy of the structure2
Fully Enclosed Building AreaFully enclosed building area of the design225
Estimated Design LifeEstimated design life of the structure50
Maximum Durability CeilingThe maximum structural life of the structure150
Design Template QuantityThe template quantity field that is filled out when uploading a template into a design100


This functionality has dramatically improved the ease at which we can predict operational energy in designs and we’re enjoying using it here at eTool.  We will be adding more stored variables as time passes, watch this space.  To learn how to utilise this functionality, please get in touch for some training

Posted in: eToolLCD Software