Google Inc. and Citibank on Tuesday announced that they will invest $55 million each in a Mohave wind project supplying power to Southern California Edison

The Mountain View search engine and the New York banking unit of Citigroup Inc. said the money finances Alta IV, a 102 megawatt power project that will contribute to the Alta Wind Energy Center, a 1,550 megawatt complex that will supply power to 1.2 million people in 450,000 homes.

Alta Wind Energy Center is being developed by Terra-Gen Power, an affiliate of ArcLight Capital Partners LLC and Global Infrastructure Partners LLC. The facility will supply all its electricity to SoCal Edison, a unit of Rosemead-based Edison International, under long-term power agreements.

Alta IV is the second, major wind energy investment made in as many months by Goggle, which has invested $400 million in such projects in an initiative to become more carbon-neutral, given the search engine’s huge electricity demands. In April, it invested $100 million in a new Oregon wind farm that also will supply electricity to Southern California. Citi has underwritten the equity financing for Alta Projects II-V.

“We’re particularly excited about this project, because it’s a major contributor to California’s ambitious renewable energy goals and uses a proven and local wind resource area,” said Rick Needham, director of green business operations at Google, in a statement.

The project is located in the Tehachapi-Mojave Wind Resource Area near the towns of Tehachapi and Mojave in Kern County.