Digest
Siemens and Accenture joint venture on smart grid management systems; CenterPoint picks Itron for RF meter rollout; Memphis picks Elster electric, gas, and water AMI system; TransAlta acquires Wyoming wind farm from NextEra; NRG acquires Edison Mission Energy assets; Google to invest in Imperial Valley solar project; Sempra acquires Nebraska wind project; plus contracts and announcements from Babcock & Wilcox, Echelon, PJM, California ISO, and others.