[dpryan]

Great question - we believe there are a lot of potential add-on modules, especially around building control. One that is gaining a lot of interest recently is using people-counting data to more precisely control HVAC systems (most systems today rely on simple motion sensing for control).

Modulating heating / cooling based on the exact count can help cut energy consumption, sometimes by as much as 30% for commercial buildings.

ARPA-E (Advanced Research Projects Agency) recently put out a proposal for such a system - you can read more here if you're interested:

https://arpa-e-foa.energy.gov/

[jcims]

I was talking with a maintenance supervisor for a large facility and he was saying that they were able to modify the amount of make-up outside air cycled into a facility based on occupation (think O2 depletion, lol). Is that something you folks have run into? Seems like if you could avoid exhausting a couple (hundred?) thousand cubic feet of cooled air per hour, you could save a good bit of money.