From a press release:

The Renault-Nissan Alliance today announced that Nissan and Pima Association of Governments (PAG), which represents the Tucson region, are forming a partnership to advance zero-emission mobility by promoting the development of an electric vehicle (EV) charging network. ECOtality Inc., a Scottsdale, Ariz., clean electric transportation and storage technologies company, also will participate in the partnership by working to facilitate the process of helping make the Tucson Metro Area EV-ready.

More coverage here.