ParaSol   

Version 6.6 is now available for download.

ParaSol is a free-of-charge, user-friendly energy simulation tool for comparison of glazings and shading devices.    

SunSpace  

SunSpace is a free-of-charge, user-friendly energy simulation tool for comparison of atria and glazed rooms and courtyards.

Derob-LTH  

Version 2.0 is now available for download.

Derob is a dynamic energy simulation program for estimation of energy and indoor thermal climate in buildings.