[Joeri]

The price of sensors is dropping and starting to reach the point where cost of retrofitting buildings is outweighed by savings in more efficient building use. That trend is going to cause most buildings to be retrofitted. You can do things like occupancy detection of every workplace which are very valuable to building managers.

There’s plenty of competition in people selling the sensors, providing connectivity, or doing data analysis, but I’m not aware of any solutions for installing the damn things which aren’t tied to a vendor.