REDWOOD CITY, Calif.--(BUSINESS WIRE)--Silver Spring Networks (NYSE:SSNI) today announced that it has been recognized with the 2014 M2M Evolution IoT Excellence Award from TMCNet.com and Crossfire Media. Silver Spring connects over 20 million devices for critical infrastructure on five continents, including such iconic cities as Chicago, Copenhagen, Glasgow, Melbourne, Miami, Paris, Sao Paulo, San Francisco, and Singapore. The Silver Spring Smart City solution enables cities and utilities to he