Key technologies e.g. small cells deployment in dense urban environments, infrastructure sharing, discontinuous transmissions during periods without traffic, bit interleaved passive optical networking, dynamic resource allocation to diurnal traffic fluctuations, energy efficient hardware and network equipment.
The consortium's goal at creation was to help create the technologies that would make communications networks 1,000 times more energy efficient than they were in 2010 to provide headroom for the increase in data traffic to come. Energy efficiency is defined as the ratio of the useful traffic carried by a network and the total energy required to support that traffic over a year.
This is a great initiative forcasting the steep growth of network and traffic.