End user impacts of automated electrochromic windows in a pilot retrofit application

▸ Measured weekday lighting energy use savings were 91% for this retrofit smart window application. ▸ Total annual energy use savings were estimated to be 39-48% using EnergyPlus. ▸ Peak electric demand was estimated to be reduced by 22-35% using EnergyPlus. ▸ Predicted percentage dissatisfied with the thermal environment reduced from 18% to 13-15%. ▸ Occupants did not use the manual switches to override the automated control system very often.