Zigbee, EnOcean, and Energy Harvesting

I won't take a lot of space for this one, as interest in this topic is probably narrower than what I usually discuss. This article about Zigbee vs. EnOcean in energy harvesting sensors for building management and energy savings presents some interesting points. Interestingly enough, illumra makes systems with both technologies, and even uses them together in a hybrid (or bridged) configuration. We use Zigbee for the backhaul, and EnOcean for the energy harvesting controls. As always, a disclaimer - I do work for/with illumra, so I'm not a completely objective third party relating to those products.