After considering what is available at present, it seems to me there are two possible directions that programmable thermostat technology can develop. Both of these directions are being pursued by Honeywell International. The one direction involves putting more technology in the home to better integrate the HVAC equipment to increase both comfort and energy efficiency. The other direction is to establish a two way link between utility companies and end users so both parties can work together to reduce carbon emissions and electricity costs.
One shining example of technology developing to provide better control of indoor climate is the Honeywell THX9321R5000 Prestige HD. This programmable thermostat is far easier to program than any other thermostat on the market. It has a large display with color high definition graphics and an easy to understand scroll bar menu. There is an interview wizard to guide even the most worried people through inputting their temperature requirements. The Honeywell Prestige HD stands out also for having a redLINK wi-fi connection that can link to an outdoor sensor, comfort station and a humidifier / dehumidifier. The Prestige HD collects information about the temperature and humidity outside and makes suggestions about ideal temperature and humidity settings for the inside. The comfort station is a small portable device that allows the user to change the settings on up to 16 thermostats around the house. This allows the user to easily turn down the heating in rooms not occupied and turn up the heat in rooms soon to be used.
The other direction thermostats are going is to do with an internet connection with the utility company. Honeywell makes the UtilityPro Programmable Thermostat. It is in use in certain parts of Northern America. The utility company installs the thermostat. During spikes in energy demand (often during the hottest part of the day) the utility can override the user settings to cycle HVAC equipment on and off for short intervals. This relieves pressure on the national grid and saves users money without any noticeable forfeiture of comfort. The tiny reductions in demand from thousands of UtilityPro Thermostats help utility companies reduce prices and better manage their generating resources.
With the UtilityPro customers get professional help reducing their bills and the utilities avoid brownouts and blackouts. The UtilityPro works through direct commands from the utility company and customized text messages. So far 33 utilities are experimenting with this system in Canada and the USA.
In both the case of the Honeywell THX9321R5000 Prestige HD and the Honeywell UtilityPro the future of the programmable thermostat can be discerned. It is about better access and processing of information and about better communication between the providers of power and the end users.